ERIC Educational Resources Information Center
Grinstead, Mary L.
2013-01-01
This study explores the relationship between specific advanced mathematics courses and college readiness (as determined by ACT score). The ACT organization has found a consistent relationship between taking a minimum core number of mathematics courses and higher ACT scores (mathematics and composite) (ACT, Inc., 2012c). However, the extent to…
Why Do Students Drop Advanced Mathematics?
ERIC Educational Resources Information Center
Horn, Ilana
2004-01-01
Students, especially black, Latino and Native American youth and students of low socio-economic status drop out of advanced mathematics. Teachers must coordinate their expectations, their knowledge of students and their teaching practices in order to stop struggling students from dropping out of advanced math classes.
Mathematical Conversations to Transform Algebra Class
ERIC Educational Resources Information Center
Szydlik, Jennifer Earles
2015-01-01
Classroom culture is established through both conversations and practices. Traditionally in mathematics class, the focus is primarily on the latter; that is, students are shown what "doing mathematics" looks like, and then asked that they try it themselves. This article discusses three mathematical conversations that help bring…
Constructive Failure in Mathematics Classes
ERIC Educational Resources Information Center
Rowlett, Joel E.
2011-01-01
Great strides in the real world are usually accompanied by failure. Mathematics teachers should accept some failure as their students take risks during mathematical explorations. This is not to imply that students should fail an entire course, but they should have opportunities to take risks that may lead to failure, especially in the area of…
Teacher Leaders: Advancing Mathematics Learning
ERIC Educational Resources Information Center
Kinzer, Cathy J.; Rincón, Mari; Ward, Jana; Rincón, Ricardo; Gomez, Lesli
2014-01-01
Four elementary school instructors offer insights into their classrooms, their unique professional roles, and their leadership approaches as they reflect on their journey to advance teacher and student mathematics learning. They note a "teacher leader" serves as an example to other educators and strives to impact student learning;…
Mathematical Language and Advanced Mathematics Learning
ERIC Educational Resources Information Center
Ferrari, Pier Luigi
2004-01-01
This paper is concerned with the role of language in mathematics learning at college level. Its main aim is to provide a perspective on mathematical language appropriate to effectively interpret students' linguistic behaviors in mathematics and to suggest new teaching ideas. Examples are given to show that the explanation of students' behaviors…
Cognitive Correlates of Performance in Advanced Mathematics
ERIC Educational Resources Information Center
Wei, Wei; Yuan, Hongbo; Chen, Chuansheng; Zhou, Xinlin
2012-01-01
Background: Much research has been devoted to understanding cognitive correlates of elementary mathematics performance, but little such research has been done for advanced mathematics (e.g., modern algebra, statistics, and mathematical logic).Aims: To promote mathematical knowledge among college students, it is necessary to understand what factors…
Mathematical Proof as Formal Procept in Advanced Mathematical Thinking
ERIC Educational Resources Information Center
Chin, Erh-Tsung
2003-01-01
In this paper the notion of "procept" (in the sense of Gray & Tall, 1994) is extended to advanced mathematics by considering mathematical proof as "formal procept". The statement of a theorem as a symbol may theoretically evoke the proof deduction as a process that may contain sequential procedures and require the synthesis of distinct cognitive…
Multi-Positioning Mathematics Class Size: Teachers' Views
ERIC Educational Resources Information Center
Handal, Boris; Watson, Kevin; Maher, Marguerite
2015-01-01
This paper explores mathematics teachers' perceptions about class size and the impact class size has on teaching and learning in secondary mathematics classrooms. It seeks to understand teachers' views about optimal class sizes and their thoughts about the education variables that influence these views. The paper draws on questionnaire responses…
Student Produced Advanced Mathematical Software.
ERIC Educational Resources Information Center
Hogben, Leslie
The intent of this project was to develop a course for mathematics graduate students at Iowa State University. They would design and write computer programs for use by undergraduate mathematics students, and then offer the course and actually produce the software. Phase plane graphics for ordinary differential equations was selected as the topic.…
Gestures and Insight in Advanced Mathematical Thinking
ERIC Educational Resources Information Center
Yoon, Caroline; Thomas, Michael O. J.; Dreyfus, Tommy
2011-01-01
What role do gestures play in advanced mathematical thinking? We argue that the role of gestures goes beyond merely communicating thought and supporting understanding--in some cases, gestures can help generate new mathematical insights. Gestures feature prominently in a case study of two participants working on a sequence of calculus activities.…
Advanced Mathematics from an Elementary Standpoint.
ERIC Educational Resources Information Center
Mosquera, Julio C.
1992-01-01
Presents four areas of advanced mathematical research (fuzzy set theory, subjective probability, search theory, and Voronoi diagrams) that are proposed for introduction into teacher education programs from an elementary, survey perspective without the intention of accomplishing formal mathematical research, thereby challenging teachers' beliefs…
ERIC Educational Resources Information Center
Dalton, Ben; Ingels, Steven J.; Downing, Jane; Bozick, Robert
2007-01-01
While increased academic requirements for high school graduation have long been advocated, current research shows a mixed record in mathematics and science achievement among American middle and high school students relative to some of their international peers. In response to these concerns and other calls for reform, states have increased the…
ERIC Educational Resources Information Center
Anderson, Rick
2006-01-01
The focus of this paper is a group of rural high school students and the factors that contributed to their participation in mathematics classes beyond those minimally required for high school graduation. The author follows Gutierrez (2002) in referring to participation as course taking, particularly in elective and advanced mathematics classes.…
ERIC Educational Resources Information Center
Rasmussen, Chris; Kwon, Oh Nam; Allen, Karen; Marrongelle, Karen; Burtch, Mark
2006-01-01
This paper provides an overview of the Inquiry-Oriented Differential Equations (IO-DE) project and reports on the main results of a study that compared students' beliefs, skills, and understandings in IO-DE classes to more conventional approaches. The IO-DE project capitalizes on advances within mathematics and mathematics education, including the…
In-Class Purposes of Flipped Mathematics Educators
ERIC Educational Resources Information Center
Eisenhut, Lindsay A.; Taylor, Cynthia E.
2015-01-01
This paper provides empirical findings from a study that examined how three grade 7-12 flipped mathematics educators utilized class time when implementing a flipped learning model. Additionally, the researchers investigated the educators' purposes for various in-class tasks as well as their general use of class time. The data revealed flipped…
World Cultures in the Mathematics Class.
ERIC Educational Resources Information Center
Zaslavsky, Claudia
1991-01-01
Introduces a cultural perspective in the teaching of mathematics. Describes the mathematical practices of African peoples and of the indigenous peoples of the Americas in relationship with numbers and numeration, design and pattern, architecture, and games of chance and skill. (MDH)
Using Simulations in the Mathematics Class
ERIC Educational Resources Information Center
Santulli, Thomas V.
2006-01-01
The understanding and a liking towards mathematics can be very effectively developed in students by allowing them to find out the solutions for any basic problem or simulations, which are basically mathematical reenactments of nearly or completely hypothetical situations. The nontransitive relation of Efron's dice or the assignment of numbers in a…
Changing Beliefs about Teaching in Large Undergraduate Mathematics Classes
ERIC Educational Resources Information Center
Kensington-Miller, Barbara; Sneddon, Jamie; Yoon, Caroline; Stewart, Sepideh
2013-01-01
Many lecturers use teacher-centred styles of teaching in large undergraduate mathematics classes, often believing in the effectiveness of such pedagogy. Changing these beliefs about how mathematics should be taught is not a simple process and many academic staff are reluctant to change their ways of lecturing due to tradition and ease. This study…
Constructivism in a kindergarten mathematics class
NASA Astrophysics Data System (ADS)
MacMillan, Agnes
1990-06-01
This paper seeks to show that children in their first year at school can be guided towards a closer awareness of their own mathematical thinking so that ultimately the achievement of more elegant solutions to problems will become one of their goals. A more accepting, flexible and varied approach that centres on the conceptual state and psychological needs of the child is one that has been espoused by mathematics educators. The paper outlines some of the processes and problems involved in implementing such an approach by an experienced teacher in her classroom. It was found that by delicately exploring a child's thought processes, it is possible to gain an illuminating view of the particular characteristics of each child's conceptual world.
High School Students' Emotional Experiences in Mathematics Classes
ERIC Educational Resources Information Center
Martínez-Sierra, Gustavo; González, María del Socorro García
2014-01-01
The aim of this qualitative research is to identify Mexican high school students' emotional experiences in mathematics classes. In order to obtain the data, focus group interviews were carried out with 22 students. The data analysis is based on the theory of the cognitive structure of emotions, which specifies the eliciting conditions for each…
Overcoming Anarchy in the Advanced Language Class.
ERIC Educational Resources Information Center
Gutierrez, John R.
1990-01-01
The coordination, articulation, and implementation of informed teaching techniques and objectives will help to overcome the anarchy and confusion that characterize higher education advanced-level foreign language classes, and will begin to produce a pool of highly competent foreign language speakers and writers. (33 references) (CB)
Advanced Mathematical Thinking in a Technological Workplace.
ERIC Educational Resources Information Center
Magajna, Zlatan; Monaghan, John
2003-01-01
Examines the use of mathematics in a computer-aided design and manufacturing setting, whether this mathematics is related to school mathematics, how technicians understand this mathematics, and the role of technology in the technicians' mathematics-related problem solving activities. Focuses on technician's calculations of the interval volume of…
Adding Structure to the Transition Process to Advanced Mathematical Activity
ERIC Educational Resources Information Center
Engelbrecht, Johann
2010-01-01
The transition process to advanced mathematical thinking is experienced as traumatic by many students. Experiences that students had of school mathematics differ greatly to what is expected from them at university. Success in school mathematics meant application of different methods to get an answer. Students are not familiar with logical…
Advanced Mathematics Course-Taking: A Focus on Gender Equifinality
ERIC Educational Resources Information Center
You, Sukkyung; Sharkey, Jill D.
2012-01-01
High school mathematics achievement predicts future success. Potentially different factors that lead to success for boys versus girls, termed equifinality, are not well understood. Such factors are needed to inform interventions to increase numbers of students taking advanced mathematics courses and going on into science and mathematics careers.…
Advanced Mathematical Thinking and the Way to Enhance It
ERIC Educational Resources Information Center
Herlina, Elda; Batusangkar, Stain
2015-01-01
This journal article discusses Advanced Mathematical Thinking (AMT) and how to enhance it. AMT is ability in representing, abstracting, creative thinking, and mathematical proving. The importance of AMT ability development in accord with government expectation who realize about the importance of mathematical competency mastery for student's life.…
ERIC Educational Resources Information Center
Koichu, Boris
2010-01-01
This article discusses an issue of inserting mathematical knowledge within the problem-solving processes. Relatively advanced mathematical knowledge is defined in terms of "three mathematical worlds"; relatively advanced problem-solving behaviours are defined in terms of taxonomies of "proof schemes" and "heuristic behaviours". The relationships…
All Students Need Advanced Mathematics. Math Works
ERIC Educational Resources Information Center
Achieve, Inc., 2013
2013-01-01
This fact sheet explains that to thrive in today's world, all students will need to graduate with very strong math skills. That can only mean one thing: advanced math courses are now essential math courses. Highlights of this paper include: (1) Advanced math equals college success; (2) Advanced math equals career opportunity; and (3) Advanced math…
Reassessing the Economic Value of Advanced Level Mathematics
ERIC Educational Resources Information Center
Adkins, Michael; Noyes, Andrew
2016-01-01
In the late 1990s, the economic return to Advanced level (A-level) mathematics was examined. The analysis was based upon a series of log-linear models of earnings in the 1958 National Child Development Survey (NCDS) and the National Survey of 1980 Graduates and Diplomates. The core finding was that A-level mathematics had a unique earnings premium…
Use and Recall of Advance Organizers in Mathematics Instruction
ERIC Educational Resources Information Center
Bright, George W.
1976-01-01
Two studies are described which (a) determined whether the generality and inclusiveness of advance organizers (AOs) were the same as the mathematical generality or abstractness of concepts that might be used as AOs and (b) measured the effect of programmed recall of AOs in enhancing the learning of a mathematical concept. (DT)
Conditional Inference and Advanced Mathematical Study: Further Evidence
ERIC Educational Resources Information Center
Inglis, Matthew; Simpson, Adrian
2009-01-01
In this paper, we examine the support given for the "theory of formal discipline" by Inglis and Simpson (Educational Studies Mathematics 67:187-204, "2008"). This theory, which is widely accepted by mathematicians and curriculum bodies, suggests that the study of advanced mathematics develops general thinking skills and, in particular, conditional…
ERIC Educational Resources Information Center
Ma, Xin
2010-01-01
Based on data from the Longitudinal Study of American Youth (LSAY), students were classified into high-, middle-, and low-ability students. The effects of early acceleration in mathematics on the most advanced mathematics coursework (precalculus and calculus) in high school were examined in each category. Results showed that although early…
ERIC Educational Resources Information Center
Sangpom, Wasukree; Suthisung, Nisara; Kongthip, Yanin; Inprasitha, Maitree
2016-01-01
Mathematical teaching in Thai tertiary education still employs traditional methods of explanation and the use of rules, formulae, and theories in order for students to memorize and apply to their mathematical learning. This results in students' inability to concretely learn, fully comprehend and understand mathematical concepts and practice. In…
ERIC Educational Resources Information Center
Robert, Aline
1995-01-01
Examines discourse, not strictly mathematical, that teachers might adopt in a mathematics class and presents three major functions of such discourse: communication; structuring and labeling; and reflection. Develops lines for further inquiry, notably on the third function, the most likely focus for specific preparation by the teacher. (13…
Exposing Calculus Students to Advanced Mathematics
ERIC Educational Resources Information Center
Griffiths, Barry J.; Haciomeroglu, Erhan Selcuk
2014-01-01
To ensure the competitiveness of the USA in the global economy, and its role as a leader in science and engineering, it is important to cultivate the next generation of home grown mathematicians. However, while universities across the USA offer calculus classes to thousands of undergraduate students each year, very few of them go on to major in…
ERIC Educational Resources Information Center
Brown, Marc C.
2012-01-01
The central research question of the study asks: how do middle school students experience learning mathematics in middle school mathematics class? The additional research questions that guide the study ask: what are some of the barriers to learning mathematics in middle school mathematics class and what causes students to understand certain…
First-Grade Predictors of Mathematical Learning Disability: A Latent Class Trajectory Analysis
ERIC Educational Resources Information Center
Geary, David C.; Bailey, Drew H.; Littlefield, Andrew; Wood, Phillip; Hoard, Mary K.; Nugent, Lara
2009-01-01
Kindergarten to third grade mathematics achievement scores from a prospective study of mathematical development (n = 306) were subjected to latent growth trajectory analyses. The four corresponding classes included children with mathematical learning disability (MLD, 6% of sample), and low (LA, 50%), typically (TA, 39%) and high (HA, 5%) achieving…
Who Succeeds in Advanced Mathematics and Science Courses?
ERIC Educational Resources Information Center
Korpershoek, Hanke; Kuyper, Hans; van der Werf, Greetje; Bosker, Roel
2011-01-01
Few students (particularly few girls) currently choose to take their Final School Examination (FSE) in advanced mathematics, chemistry and physics, a combination of subjects that is the best preparation for a science-oriented study in higher education. Are these subjects attainable by more students than is currently the case? This study examined…
Advanced Mathematical Knowledge in Teaching Practice: Perceptions of Secondary Mathematics Teachers
ERIC Educational Resources Information Center
Zazkis, Rina; Leikin, Roza
2010-01-01
For the purpose of our research we define Advanced Mathematical Knowledge (AMK) as knowledge of the subject matter acquired during undergraduate studies at colleges or universities. We examine the responses of secondary school teachers about their usage of AMK in teaching. We find that the majority of teachers focus on the purposes and advantages…
CLASS SIZE AND ACHIEVEMENT GAINS IN SEVENTH- AND EIGHTH-GRADE ENGLISH AND MATHEMATICS.
ERIC Educational Resources Information Center
JOHNSON, MAURITZ; SCRIVEN, ELDON
USING DATA OBTAINED BY THE QUALITY MEASUREMENT PROJECT ON SOME 70,000 PUPILS, THIS STUDY ATTEMPTED TO PRODUCE EVIDENCE REGARDING THE INFLUENCE OF CLASS SIZE AND CLASS HOMOGENEITY ON ACHIEVEMENT GAINS IN GRADES 7 AND 8. A TOTAL OF 130 ENGLISH AND 135 MATHEMATICS CLASSES CLASSIFIED ACCORDING TO SIZE AND HOMOGENEITY WERE EXAMINED. THE READING…
ERIC Educational Resources Information Center
Mason, DeWayne A.; Good, Thomas L.
1993-01-01
A whole-class model providing for student diversity through remediation and enrichment in small groups was compared with a two-group model accommodating diversity through fixed within-class ability groups. Higher mathematics achievement was found for the whole-class model in a study of 1,736 fourth, fifth, and sixth graders. (SLD)
Teacher Interventions in Cooperative-Learning Mathematics Classes
ERIC Educational Resources Information Center
Ding, Meixia; Li, Xiaobao; Piccolo, Diana; Kulm, Gerald
2007-01-01
The authors examined the extent to which teacher interventions focused on students' mathematical thinking in naturalistic cooperative-learning mathematics classroom settings. The authors also observed 6 videotapes about the same teaching content using similar curriculum from 2 states. They created 2 instruments for coding the quality of teacher…
Instructional Qualities of a Successful Mathematical Problem-Solving Class.
ERIC Educational Resources Information Center
Santos-Trigo, Manuel
1998-01-01
Describes activities that have been successfully implemented by an expert during a mathematical problem-solving course. Focuses on the identification of the qualities of these problems used to promote the development of student strategies and values that reflect mathematical practice in the classroom. Contains 17 references. (ASK)
A Case Study of Single-Sex Middle School Mathematics Classes in a Mixed-Sex Public School
ERIC Educational Resources Information Center
Kawasha, Fridah Singongi Silishebo
2010-01-01
The purpose of this case study was to (a) examine the main and interaction effects of gender, race and class-type on mathematics achievement, mathematics attitudes and sources of mathematics self-efficacy, (b) investigate teacher-student interactions in the single-sex mathematics classes and (c) investigate perspectives about single-sex…
NASA Astrophysics Data System (ADS)
Manger, Terje; Gjestad, Rolf
1997-03-01
The relationship between mathematical achievement and the ratio of boys to girls in school classes was investigated in a sample of third-grade Norwegian elementary school students (440 girls and 480 boys). Belonging to classes with a numerical majority of boys or girls did not affect the achievement of either of the sexes. The results from the study do not support the single-sexing of mathematics teaching.
Effects of Teaching Strategies on Student Motivation to Learn in High School Mathematics Classes
ERIC Educational Resources Information Center
Toles, Ann
2010-01-01
To succeed in an increasing technological and global society, students need to develop strong mathematical and problem-solving skills. This qualitative grounded theory study examined student perceptions of the ways in which teaching strategies in high school mathematics classes affect student motivation to learn the subject. Study participants…
ERIC Educational Resources Information Center
Aljaberi, Nahil M.; Gheith, Eman
2016-01-01
This study aims to investigate the ability of pre-service class teacher at University of Petrain solving mathematical problems using Polya's Techniques, their level of problem solving skills in daily-life issues. The study also investigates the correlation between their ability to solve mathematical problems and their level of problem solving…
ERIC Educational Resources Information Center
Greene, Barbara A.; DeBacker, Teresa K.; Ravindran, Bhuvaneswari; Krows, A. Jean
1999-01-01
Examined gender and motivation in high school mathematics classes through an expectancy-value framework with 366 students. Task-specific goals were much stronger predictors of effort than were any other set of variables. For both males and females, endorsing the stereotype that mathematics is a male domain was negatively related to reported…
The Measurement of Students' Achievement in Teaching Primary School Fifth Year Mathematics Classes
ERIC Educational Resources Information Center
Doganay, Ahmet; Bal, Ayten Pinar
2010-01-01
The aim of this study was to investigate students' and teachers' point of views about preparing measurement tools used in mathematics classes, the level of learning that these tools are intended to measure, how often they are used and how they are scored in terms of assessing 5th grade primary school mathematic courses. The population of the study…
Addressing the Standards for Mathematical Practice in a Calculus Class
ERIC Educational Resources Information Center
Pilgrim, Mary E.
2014-01-01
The Common Core State Standards (CCSS) provide teachers with the expectations and requirements that are meant to prepare K-12 students for college and the workforce (CCSSI 2010b). The Common Core State Standards for Mathematical Practice (SMPs) emphasize the development of skills and conceptual understanding for students to become proficient in…
Obstacles of Teaching Mathematics Faced by the Class Teachers in Jordan
ERIC Educational Resources Information Center
Nejem, Khamis Mousa; Muhanna, Waffa
2013-01-01
The purpose of the study is to investigate the obstacles of teaching mathematics faced by the class teachers in Jordan. To achieve this purpose a study sample of 192 male and female class teachers was selected randomly from government schools. The instrument of the study was a questionnaire used to investigate the obstacles of mathematics…
Mathematics Instruction in Combination and Single-Grade Classes: An Exploratory Investigation.
ERIC Educational Resources Information Center
Mason, Dewayne A.; Good, Thomas L.
1996-01-01
This study compared the curriculum, instructional strategies, and organizational formats used by 6 elementary mathematics teachers with multigrade classes and those used by 18 who used either whole-class teaching or ability grouping. Analysis of videotaped lessons found significant differences between groups, suggesting that multigrade classes…
ERIC Educational Resources Information Center
Webel, Corey
2013-01-01
In this article I explore high school students' perspectives on working together in a mathematics class in which they spent a significant amount of time solving problems in small groups. The data included viewing session interviews with eight students in the class, where each student watched video clips of their own participation, explaining and…
Mathematical modeling of a class of multibody flexible spacecraft structures
NASA Technical Reports Server (NTRS)
Kelkar, Atul, G.
1994-01-01
A mathematical model for a general multibody flexible spacecraft is obtained. The generic spacecraft considered consists of a flexible central body to which a number of flexible multibody structures are attached. The coordinate systems used in the derivation allow effective decoupling of the translational motion of the entire spacecraft from its rotational motion about its center of mass. The derivation assumes that the deformations in the bodies are only due to elastic motions. The dynamic model derived is a closed-form vector-matrix differential equation. The model developed can be used for analysis and simulation of many realistic spacecraft configurations.
ERIC Educational Resources Information Center
Kombe, Dennis; Che, S. Megan; Carter, Traci L.; Bridges, William
2016-01-01
In this article, we present findings from a study that investigated the relationship between all-girls classes, all-boys classes, and coeducational classes on student mathematics self-concept and student perception of classroom environment. Further, we compared responses of girls in all-girls classes to girls in coeducational classes and responses…
ERIC Educational Resources Information Center
Ercikan, Kadriye; McCreith, Tanya; Lapointe, Vanessa
2005-01-01
This article reports results of an exploratory study examining factors that might be associated with achievement in mathematics and participation in advanced mathematics courses in Canada, Norway, and the United States of America (USA). These factors, which were not directly related to schooling accounted for large degrees of variability, 24% to…
ERIC Educational Resources Information Center
Huss-Keeler, Rebecca; Brown, Suzanne
2007-01-01
This paper examines the strategies used, challenges faced and lessons learned in meeting the diverse learning needs of graduate initial certification and graduate certified teachers in the same cross-listed early childhood mathematics class. Questions investigated included "How can instructors best meet the learning needs of diverse candidates in…
ERIC Educational Resources Information Center
Pramling, Niklas; Samuelsson, Ingrid Pramling
2008-01-01
In a general sense, the research interest of this article concerns the preschool class, which is an intermediate form of schooling for six-year-olds in Sweden, between preschool and school and their two traditions of "play" and "learning," respectively. In a more specific sense, the issue of learning one aspect of basic mathematics in this…
ERIC Educational Resources Information Center
Seo, Daeryong
This study was undertaken to understand a motivation model in the context of the Korean elementary school mathematics class. The sample consisted of 178 fourth graders (boys=95; girls=83) from 2 Korean elementary schools. This study showed that a goal mediational model could be modified and successfully applied to the context of the Korean…
ERIC Educational Resources Information Center
Gaspard, Cathy
2013-01-01
This study examined four high school mathematics student teachers' questions and responses in whole class discussion for eight weeks. Throughout the eight weeks, student teachers were teaching full time. With the use of video, interviews and written reflections the results make visible that student teachers attempted to ask questions that required…
Mathematics Achievement with Digital Game-Based Learning in High School Algebra 1 Classes
ERIC Educational Resources Information Center
Ferguson, Terri Lynn Kurley
2014-01-01
This study examined the impact of digital game-based learning (DGBL) on mathematics achievement in a rural high school setting in North Carolina. A causal comparative research design was used in this study to collect data to determine the effectiveness of DGBL in high school Algebra 1 classes. Data were collected from the North Carolina…
ERIC Educational Resources Information Center
McBride, Craig
2015-01-01
This paper contains a description of my experiences flipping undergraduate mathematics and statistics courses for the first time with some advice for any fellow novice flippers. This paper discusses ways to start small and build up to a completely flipped class over the span of a few terms with advice on what technology to use including software…
Students' and Teachers' Perceptions of Single-Sex and Mixed-Sex Mathematics Classes.
ERIC Educational Resources Information Center
Rennie, Leonie; Parker, Lesley H.
1997-01-01
Examines students' perceptions of learning settings in single-sex and mixed-sex mathematics classes and teachers' responses to those different classroom contexts. Concludes that single-sex classrooms provide a more supportive environment for girls but a significantly less supportive environment for boys. The single-sex environment provides…
Students' and teachers' perceptions of single-sex and mixed-sex mathematics classes
NASA Astrophysics Data System (ADS)
Rennie, Léonie J.; Parker, Lesley H.
1997-11-01
This study examines students' perceptions of the learning settings in single-sex and mixed-sex mathematics classes, and teachers' responses to those different classroom contexts. Nearly 300 students in four coeducational secondary schools gave their views of the nature of their participation and interaction in their mathematics classrooms, and data were also obtained from their teachers. There was congruence between students' and teachers' perceptions of the environment in the two kinds of classrooms. Overall, it was perceived that single-sex classrooms provided a more supportive environment for girls, but a rather less supportive environment for boys. Teachers used different strategies with the two kinds of classes and, although many experienced initial difficulty with unruly boys' classes, these problems were overcome. The single-sex environment provided opportunities for teachers to address apparent shortcomings arising from boys' and girls' previous educational experience, which resulted in improved attitudes and performance.
Secondary School Advanced Mathematics, Chapter 8, Systems of Equations. Student's Text.
ERIC Educational Resources Information Center
Stanford Univ., CA. School Mathematics Study Group.
This text is the last of five in the Secondary School Advanced Mathematics (SSAM) series which was designed to meet the needs of students who have completed the Secondary School Mathematics (SSM) program, and wish to continue their study of mathematics. In this volume the solution of systems of linear and quadratic equations and inequalities in…
ERIC Educational Resources Information Center
Weber, Keith
2009-01-01
This paper presents a case study of a highly successful student whose exploration of an advanced mathematical concept relies predominantly on syntactic reasoning, such as developing formal representations of mathematical ideas and making logical deductions. This student is observed as he learns a new mathematical concept and then completes…
ERIC Educational Resources Information Center
Marsh, Herbert W.; Rowe, Kenneth J.
1996-01-01
Critical reanalysis of a previous Australian study comparing the effects of single-sex mathematics and mixed-sex mathematics instruction on students in grades seven and eight suggests that the randomly assigned class-type intervention had relatively little effect on mathematics achievement or attitudes, and that at least some effects favored…
ERIC Educational Resources Information Center
Reed, Amber Earlyn
2013-01-01
The purpose of this study is to determine the impact of student success in developmental mathematics classes because of their instructional delivery mode at a North Texas suburban community college. The developmental mathematics courses for this study will include Beginning Algebra, Pre-Algebra and Intermediate Algebra. Classes will be offered…
ERIC Educational Resources Information Center
McLure, Gail T.; Boatwright, Micheal; McClanahan, Randy; McLure, John W.
The purpose of this study was to examine patterns with regard to six advanced high school mathematics courses 12th-grade students who took the American College Testing (ACT) assessment had taken between 1987 and 1997. Differences in performance on the ACT mathematics test were studied with respect to mathematics courses taken, gender,…
A mathematical model of the class D converter for compact fluorescent ballasts
Nerone, L.R.
1995-11-01
The time-harmonic analysis is often used to design the class D converter. Since the Q of the resonant network is often low, this analysis, in the form of the sinusoidal approximation, begins to lose accuracy. This paper explores an improved method of designing compact fluorescent ballasts via the square wave approximation (SWA), where the time domain equations are solved for the general case of arbitrary Q, duty ratio, and frequency. A precise mathematical model of the Class D converter is developed that predicts the currents and voltages of the converter and these solutions are compared with computer simulation. Nonlinear programming (NLP) is introduced as a means to design the ballast for the lowest conduction losses. The equations developed in the mathematical model are formulated into a NLP format that includes the self-oscillating case.
Wong, Terry T-Y; Ho, Connie S-H; Tang, Joey
2014-11-01
The traditional way of identifying children with mathematics learning disabilities (MLDs) using the low-achievement method with one-off assessment suffers from several limitations (e.g., arbitrary cutoff, measurement error, lacking consideration of growth). The present study attempted to identify children with MLD using the latent growth modelling approach, which minimizes the above potential problems. Two hundred and ten Chinese-speaking children were classified into five classes based on their arithmetic performance over 3 years. Their performance on various number-related cognitive measures was also assessed. A potential MLD class was identified, which demonstrated poor achievement over the 3 years and showed smaller improvement over time compared with the average-achieving class. This class had deficits in all number-related cognitive skills, hence supporting the number sense deficit hypothesis. On the other hand, another low-achieving class, which showed little improvement in arithmetic skills over time, was also identified. This class had an average cognitive profile but a low SES. Interventions should be provided to both low-achieving classes according to their needs. PMID:25104225
ERIC Educational Resources Information Center
Ricketts, Jean Napier
The effects of a prescribed, sequential program of reading and mathematics readiness activities were investigated in an experimental study of 229 middle-class kindergarten children. Eight of 16 kindergarten classes received the experimental treatment for six months; the other eight served as a control group. Readiness tests were given before and…
Why so few young women in mathematics, science, and technology classes?
Wieda, K.J.
1995-06-01
Many factors influence the success of women in scientific and technical careers. Women represent over 50% of the U.S. population, yet less than 16% of women are employed in scientific and technical careers. Research over the last decade makes it clear that disparities exist in the participation, achievement, and attitudes of young men and young women in science classes. Young women are as interested in science experiences as young men up until age nine. After that age, the number of young women interested in science, mathematics, and technology classes drops. Not enrolling in science and mathematics classes in high school limits career options for young women, and their chance to succeed in a scientific or technical field becomes remote. Why is this happening? What can we, as educators, scientists, and parents do to address this problem? The literature identifies three principal factors that relate to the lack of female involvement in science classes: culture, attitude, and education. This paper reviews these factors and provides examples of programs that Pacific Northwest Laboratory (PNL) and others have developed to increase the number of young women entering college ready and wanting to pursue a career in a scientific or technical field.
ERIC Educational Resources Information Center
Lew, Kristen; Fukawa-Connelly, Timothy Patrick; Mejía-Ramos , Juan Pablo; Weber, Keith
2016-01-01
We describe a case study in which we investigate the effectiveness of a lecture in advanced mathematics. We first videorecorded a lecture delivered by an experienced professor who had a reputation for being an outstanding instructor. Using video recall, we then interviewed the professor to determine the ideas that he intended to convey and how he…
ERIC Educational Resources Information Center
Aldridge, Ashley Elizabeth
2009-01-01
The purpose of this study was to investigate whether any statistically significant differences in mathematics and reading academic achievement and academic gains of male and female students taught in single-sex classes existed when compared to male and female students taught in coeducational classes. This study reported findings from mathematics…
ERIC Educational Resources Information Center
Ma, Xin
2006-01-01
Using data from the Longitudinal Study of American Youth, this analysis tested whether changes during middle and high school in mathematics-related cognitive and affective factors influence participation in the most advanced mathematics course work, with control over confounding factors associated with student background. No significant…
A National Dilemma: African American Students Underrepresented in Advanced Mathematics Courses
ERIC Educational Resources Information Center
Johnson, Clarence; Kritsonis, William Allan
2006-01-01
A lack of access to educational opportunities has been a reality for African American students. As a result, America's schools are facing a national dilemma. African American students are significantly underrepresented in advanced mathematics courses. One of the most segregated places in American society is the mathematics classroom. African…
Gender Differences in the Use and Benefit of Advanced Learning Technologies for Mathematics
ERIC Educational Resources Information Center
Arroyo, Ivon; Burleson, Winslow; Tai, Minghui; Muldner, Kasia; Woolf, Beverly Park
2013-01-01
We provide evidence of persistent gender effects for students using advanced adaptive technology while learning mathematics. This technology improves each gender's learning and affective predispositions toward mathematics, but specific features in the software help either female or male students. Gender differences were seen in the students' style…
ERIC Educational Resources Information Center
Nabb, Keith A.
2013-01-01
The research literature has made calls for greater coherence and consistency with regard to the meaning and use of the term advanced mathematical thinking (AMT) in mathematics education (Artigue, Batanero, & Kent, 2007; Selden & Selden, 2005). Educators and researchers agree that students should be engaged in AMT but it is unclear…
Dropping Out of Advanced Mathematics: How Much Do Students and Schools Contribute to the Problem?
ERIC Educational Resources Information Center
Ma, Xin; Willms, J. Douglas
1999-01-01
Uses data from six waves of the Longitudinal Study of American Youth to discern when and why students drop out of advanced mathematics. Between grades 8 and 9, prior achievement plays a more important role than attitude or socioeconomic status, and between grades 11 and 12, student attitude toward mathematics is the most important factor. (SLD)
Origins of the brain networks for advanced mathematics in expert mathematicians.
Amalric, Marie; Dehaene, Stanislas
2016-05-01
The origins of human abilities for mathematics are debated: Some theories suggest that they are founded upon evolutionarily ancient brain circuits for number and space and others that they are grounded in language competence. To evaluate what brain systems underlie higher mathematics, we scanned professional mathematicians and mathematically naive subjects of equal academic standing as they evaluated the truth of advanced mathematical and nonmathematical statements. In professional mathematicians only, mathematical statements, whether in algebra, analysis, topology or geometry, activated a reproducible set of bilateral frontal, Intraparietal, and ventrolateral temporal regions. Crucially, these activations spared areas related to language and to general-knowledge semantics. Rather, mathematical judgments were related to an amplification of brain activity at sites that are activated by numbers and formulas in nonmathematicians, with a corresponding reduction in nearby face responses. The evidence suggests that high-level mathematical expertise and basic number sense share common roots in a nonlinguistic brain circuit. PMID:27071124
Whole-class interactions and code-switching in secondary mathematics teaching in Mauritius
NASA Astrophysics Data System (ADS)
Salehmohamed, Asifa; Rowland, Tim
2014-09-01
This paper reports a study of whole-class interactions in mathematics classrooms in a girls' secondary school in Mauritius. It focuses on three teachers and their instructional language practices. Analysis of audio-recordings of lessons showed that code-switching was commonly practised by all the teachers in the study. The teachers' comments on their use of language within the classroom show that although they are aware of the languages they use, they are not always conscious of their code-switching. Different functions of the teachers' code-switching practices were identified, indicating it can be an important support for learning mathematics, despite some related tensions that teachers face in using code-switch in their teaching. The paper concludes with some implications for national policy and for teacher education.
NASA Astrophysics Data System (ADS)
Ganikhodjaev, Nasir; Mukhamedov, Farrukh; Hee, Pah Chin
2013-04-01
The 4th International Conference on the Advancement of Science and Technology 2012 (iCAST 2012), with theme 'Contemporary Mathematics, Mathematical Physics and their Applications', took place in Kuantan, Malaysia, from Wednesday 7 to Friday 9 November 2012. The conference was attended by more than 100 participants, and hosted about 160 oral and poster papers by more than 140 pre-registered authors. The key topics of the 4th iCAST 2012 include Pure Mathematics, Applied Mathematics, Theoretical/Mathematical Physics, Dynamical Systems, Statistics and Financial Mathematics. The scientific program was rather full since after the Keynote and Invited Talks in the morning, four parallel sessions ran every day. However, according to all attendees, the program was excellent with a high level of talks and the scientific environment was fruitful; thus all attendees had a creative time. The conference aimed to promote the knowledge and development of high-quality research in mathematical fields concerned with the application of other scientific fields as well as modern technological trends in physics, chemistry, biology, medicine, economics, sociology and environmental sciences. We would like to thank the Keynote and the Invited Speakers for their significant contributions to 4th iCAST 2012. We would also like to thank the members of the International Scientific Committee and the members of the Organizing Committee. We cannot end without expressing our many thanks to International Islamic University Malaysia and our sponsors for their financial support . This volume presents selected papers which have been peer-reviewed. The editors hope that it may be useful and fruitful for scholars, researchers, and advanced technical members of the industrial laboratory facilities for developing new tools and products. Guest Editors Nasir Ganikhodjaev, Farrukh Mukhamedov and Pah Chin Hee The PDF contains the committee lists, board list and biographies of the plenary speakers.
7 CFR 1000.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Class prices, component prices, and advanced pricing... advanced pricing factors. Class prices per hundredweight of milk containing 3.5 percent butterfat, component prices, and advanced pricing factors shall be as follows. The prices and pricing factors...
7 CFR 1000.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Class prices, component prices, and advanced pricing... advanced pricing factors. Class prices per hundredweight of milk containing 3.5 percent butterfat, component prices, and advanced pricing factors shall be as follows. The prices and pricing factors...
7 CFR 1000.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Class prices, component prices, and advanced pricing... advanced pricing factors. Class prices per hundredweight of milk containing 3.5 percent butterfat, component prices, and advanced pricing factors shall be as follows. The prices and pricing factors...
7 CFR 1000.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Class prices, component prices, and advanced pricing... advanced pricing factors. Class prices per hundredweight of milk containing 3.5 percent butterfat, component prices, and advanced pricing factors shall be as follows. The prices and pricing factors...
7 CFR 1000.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Class prices, component prices, and advanced pricing... advanced pricing factors. Class prices per hundredweight of milk containing 3.5 percent butterfat, component prices, and advanced pricing factors shall be as follows. The prices and pricing factors...
ERIC Educational Resources Information Center
Pierre-Louis, Fred
2010-01-01
The purpose of this study was to describe Markdale High School's change from separate college preparatory and general level classes to heterogeneously-grouped classes in English, mathematics, science, and social studies, with particular emphasis on the principal's leadership style, change process, and teacher concerns (Hall & Hord, 2006)…
ERIC Educational Resources Information Center
Abdu, Rotem; Schwarz, Baruch; Mavrikis, Manolis
2015-01-01
We investigate teachers' practices in a whole-class context when they scaffold students' learning in situations where students use technologies that facilitate group learning to solve mathematical problems in small groups. We describe teachers' practices in order to evaluate their contribution to "Whole-Class Scaffolding" in the context…
Development of next generation 1500C class advanced combustion turbines
Aoki, S.; Tskuda, Y.; Akita, E.; Tomita, Y.
1998-07-01
The full load test run of the 501G combustion turbine has just finished at Takasago combined cycle plant in MHI, Japan. The 501G has power output of 230MW at turbine inlet temperature of 1,500 C and can achieve combined net efficiency of 52%. The NO{sub x} level proved to be less than 25 ppm. The 501G and 701G1 combustion turbines are large heavy-duty single shaft combustion turbines which combine the proven reliability and efficiency of the F series with the latest low NO{sub x} combustion technology and the state-of-the-art cooling technique. As the full load test run has proved, it is a highly advanced designed turbine with documented high temperature, low NO{sub x} and high efficiency. This combined with time proven design concepts has created a new powerful combustion turbine, which will satisfy the large combustion turbine power generation needs for the next decades. The 501G turbine is the 60Hz, 3,600 rpm heavy duty combustion turbine rated at 230MW at a turbine inlet of 1,500 C fired on natural gas fuel. The combined cycle net efficiency is 58%. Verification tests for various components have been conducted through the last 3 years and since February '97 a full scale-full load test is being performed to verify the high performance, reliability and maintainability. The 701G1 is a 3,000 rpm combustion turbine designed for the 50 Hz power generation utilities and industrial service. The first 701G1 gas turbine is expected to begin commercial operation in 1999 in Tohoku Electric Power Co. Higashi Nilgata Power Plant No.4, in Japan. This paper describes the features of the next generation 1,500 C class advanced combustion turbines. Aerodynamic, cooling and mechanical design improvement is discussed along with the evolutionary changes based on time proven design concepts.
Thoren, Katharina; Heinig, Elisa; Brunner, Martin
2016-01-01
A child's age in comparison to the age of her or his classmates (relative age) has been found to be an influential factor on academic achievement, particularly but not exclusively at the beginning of formal schooling. However, few studies have focused on the generalizability of relative age effects. To close this gap, the present study analyzes the generalizability across students with and without immigrant backgrounds, across three student cohorts that entered school under a changing law of school enrollment, and across classes. To this end, we capitalized on representative large-scale data sets from three student cohorts attending public schools in Berlin, the capital of Germany. We analyzed the data using a multilevel framework. Our results for the overall student sample indicate relative age effects for reading and mathematics in favor of the relatively older students in Grade 2 that become somewhat smaller in size in Grade 3. By Grade 8, relative age effects had vanished in reading and had even reversed in favor of the relatively young in mathematics. Furthermore, relative age effects were not found to be systematically different among students with and without immigrant backgrounds, student cohorts, or across classes. Taken together, these results empirically underscore the broad generalizability of the findings as found for the overall student population and replicate the pattern of findings on relative effects as identified by the majority of previous studies. PMID:27242593
Thoren, Katharina; Heinig, Elisa; Brunner, Martin
2016-01-01
A child's age in comparison to the age of her or his classmates (relative age) has been found to be an influential factor on academic achievement, particularly but not exclusively at the beginning of formal schooling. However, few studies have focused on the generalizability of relative age effects. To close this gap, the present study analyzes the generalizability across students with and without immigrant backgrounds, across three student cohorts that entered school under a changing law of school enrollment, and across classes. To this end, we capitalized on representative large-scale data sets from three student cohorts attending public schools in Berlin, the capital of Germany. We analyzed the data using a multilevel framework. Our results for the overall student sample indicate relative age effects for reading and mathematics in favor of the relatively older students in Grade 2 that become somewhat smaller in size in Grade 3. By Grade 8, relative age effects had vanished in reading and had even reversed in favor of the relatively young in mathematics. Furthermore, relative age effects were not found to be systematically different among students with and without immigrant backgrounds, student cohorts, or across classes. Taken together, these results empirically underscore the broad generalizability of the findings as found for the overall student population and replicate the pattern of findings on relative effects as identified by the majority of previous studies. PMID:27242593
Advanced Mathematics. Training Module 1.303.3.77.
ERIC Educational Resources Information Center
Kirkwood Community Coll., Cedar Rapids, IA.
This document is an instructional module prepared in objective form for use by an instructor familiar with mathematics as applied to water and wastewater treatment plant operation. Included are objectives, instructor guides and student handouts. This is the third level of a three module series and is concerned with statistics, total head, steady…
Block Scheduling and Advanced Placement Mathematics: When Tradition and Reform Collide.
ERIC Educational Resources Information Center
Howard, Elizabeth
1997-01-01
This case study reflects block scheduling's effects on advanced-placement mathematics courses of one veteran teacher tracking personal progress since 1989. Block scheduling began in 1994, creating problems for the teacher, whose resistance to the reform was based on declining advanced-placement scores. Teacher attitude and insufficient…
Innovations in Science and Mathematics Education: Advanced Designs for Technologies of Learning.
ERIC Educational Resources Information Center
Jacobson, Michael J., Ed.; Kozma, Robert B., Ed.
This collection of essays consists of current work that addresses the challenge not just to put the newest technologies in schools, but to identify advanced ways to design and use these new technologies to advance learning. These essays are intended for science and mathematics educators, educational and cognitive researchers, instructional…
The Influence of Applied STEM Coursetaking on Advanced Mathematics and Science Coursetaking
ERIC Educational Resources Information Center
Gottfried, Michael A.
2015-01-01
Advanced mathematics and science course taking is critical in building the foundation for students to advance through the STEM pathway-from high school to college to career. To invigorate students' persistence in STEM fields, high schools have been introducing applied STEM courses into the curriculum as a way to reinforce concepts learned in…
Using the Common Core State Standards for Mathematics with Gifted and Advanced Learners
ERIC Educational Resources Information Center
Johnsen, Susan K., Ed.; Sheffield, Linda J., Ed.
2012-01-01
"Using the Common Core State Standards for Mathematics With Gifted and Advanced Learners" provides teachers and administrators examples and strategies to implement the new Common Core State Standards (CCSS) with advanced learners at all stages of development in K-12 schools. The book describes--and demonstrates with specific examples from the…
ERIC Educational Resources Information Center
Stohlmann, Micah Stephen
2012-01-01
This case study explored the impact of a standards-based mathematics and pedagogy class on preservice elementary teachers' beliefs and conceptual subject matter knowledge of linear functions. The framework for the standards-based mathematics and pedagogy class in this study involved the National Council of Teachers of Mathematics Standards,…
2016-01-01
Recent studies have highlighted the potential role of basic numerical processing in the acquisition of numerical and mathematical competences. However, it is debated whether high-level numerical skills and mathematics depends specifically on basic numerical representations. In this study mathematicians and nonmathematicians performed a basic number line task, which required mapping positive and negative numbers on a physical horizontal line, and has been shown to correlate with more advanced numerical abilities and mathematical achievement. We found that mathematicians were more accurate compared with nonmathematicians when mapping positive, but not negative numbers, which are considered numerical primitives and cultural artifacts, respectively. Moreover, performance on positive number mapping could predict whether one is a mathematician or not, and was mediated by more advanced mathematical skills. This finding might suggest a link between basic and advanced mathematical skills. However, when we included visuospatial skills, as measured by block design subtest, the mediation analysis revealed that the relation between the performance in the number line task and the group membership was explained by non-numerical visuospatial skills. These results demonstrate that relation between basic, even specific, numerical skills and advanced mathematical achievement can be artifactual and explained by visuospatial processing. PMID:26913930
Advanced Reduction Processes: A New Class of Treatment Processes
Vellanki, Bhanu Prakash; Batchelor, Bill; Abdel-Wahab, Ahmed
2013-01-01
Abstract A new class of treatment processes called advanced reduction processes (ARPs) is proposed. ARPs combine activation methods and reducing agents to form highly reactive reducing radicals that degrade oxidized contaminants. Batch screening experiments were conducted to identify effective ARPs by applying several combinations of activation methods (ultraviolet light, ultrasound, electron beam, and microwaves) and reducing agents (dithionite, sulfite, ferrous iron, and sulfide) to degradation of four target contaminants (perchlorate, nitrate, perfluorooctanoic acid, and 2,4 dichlorophenol) at three pH-levels (2.4, 7.0, and 11.2). These experiments identified the combination of sulfite activated by ultraviolet light produced by a low-pressure mercury vapor lamp (UV-L) as an effective ARP. More detailed kinetic experiments were conducted with nitrate and perchlorate as target compounds, and nitrate was found to degrade more rapidly than perchlorate. Effectiveness of the UV-L/sulfite treatment process improved with increasing pH for both perchlorate and nitrate. We present the theory behind ARPs, identify potential ARPs, demonstrate their effectiveness against a wide range of contaminants, and provide basic experimental evidence in support of the fundamental hypothesis for ARP, namely, that activation methods can be applied to reductants to form reducing radicals that degrade oxidized contaminants. This article provides an introduction to ARPs along with sufficient data to identify potentially effective ARPs and the target compounds these ARPs will be most effective in destroying. Further research will provide a detailed analysis of degradation kinetics and the mechanisms of contaminant destruction in an ARP. PMID:23840160
ERIC Educational Resources Information Center
Rowe, Kenneth J.
1988-01-01
Among the intervention strategies designed to increase the participation and achievement of girls in mathematics and science education, the establishment of single-sex classes in Australian coeducational postprimary schools seems to be growing faster than the substantive evidence to justify it. The findings from a longitudinal case study are…
7 CFR 1001.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1001.53 Section 1001.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1124.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1124.53 Section 1124.53 Agriculture Regulations of the Department of Agriculture... Announcement of class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1131.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1131.53 Section 1131.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1030.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1030.53 Section 1030.53 Agriculture Regulations of the Department of Agriculture... of class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1007.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1007.53 Section 1007.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1033.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1033.53 Section 1033.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1006.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1006.53 Section 1006.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1124.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1124.53 Section 1124.53 Agriculture Regulations of the Department of Agriculture... Announcement of class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1007.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1007.53 Section 1007.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1001.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1001.53 Section 1001.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1001.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1001.53 Section 1001.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1006.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1006.53 Section 1006.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1030.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1030.53 Section 1030.53 Agriculture Regulations of the Department of Agriculture... of class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1001.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1001.53 Section 1001.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1131.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1131.53 Section 1131.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1126.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1126.53 Section 1126.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1033.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1033.53 Section 1033.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1126.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1126.53 Section 1126.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1131.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1131.53 Section 1131.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1030.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1030.53 Section 1030.53 Agriculture Regulations of the Department of Agriculture... of class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1006.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1006.53 Section 1006.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1030.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1030.53 Section 1030.53 Agriculture Regulations of the Department of Agriculture... of class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1005.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1005.53 Section 1005.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1033.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1033.53 Section 1033.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1005.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1005.53 Section 1005.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1124.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1124.53 Section 1124.53 Agriculture Regulations of the Department of Agriculture... Announcement of class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1007.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1007.53 Section 1007.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1032.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1032.53 Section 1032.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1006.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1006.53 Section 1006.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1032.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1032.53 Section 1032.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1030.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1030.53 Section 1030.53 Agriculture Regulations of the Department of Agriculture... of class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1005.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1005.53 Section 1005.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1033.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1033.53 Section 1033.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1005.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1005.53 Section 1005.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1131.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1131.53 Section 1131.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1005.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1005.53 Section 1005.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1126.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1126.53 Section 1126.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1124.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1124.53 Section 1124.53 Agriculture Regulations of the Department of Agriculture... Announcement of class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1007.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1007.53 Section 1007.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1032.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1032.53 Section 1032.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1006.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1006.53 Section 1006.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1126.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1126.53 Section 1126.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1033.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1033.53 Section 1033.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1001.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1001.53 Section 1001.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1032.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Announcement of class prices, component prices, and advanced pricing factors. 1032.53 Section 1032.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1007.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1007.53 Section 1007.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
7 CFR 1032.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Announcement of class prices, component prices, and advanced pricing factors. 1032.53 Section 1032.53 Agriculture Regulations of the Department of Agriculture... class prices, component prices, and advanced pricing factors. See § 1000.53....
ERIC Educational Resources Information Center
Lin, Su-Wei; Tai, Wen-Chun
2015-01-01
This study investigated how various mathematics learning strategies affect the mathematical literacy of students. The data for this study were obtained from the 2012 Programme for International Student Assessment (PISA) data of Taiwan. The PISA learning strategy survey contains three types of learning strategies: elaboration, control, and…
Recall of Advance Organizers as Part of Mathematics Instruction.
ERIC Educational Resources Information Center
Bright, George W.
This study was performed in order to test the author's notion that advance organizers operate because (1) they provide stable anchorage for concepts to be learned and (2) in order to operate they must be relatable by the student to the new material. To test this hypothesis the author constructed materials for each of ten treatments as defined by…
ERIC Educational Resources Information Center
Subotnik, Rena F.; Strauss, Shiela M.
1995-01-01
Despite scoring lower on the mathematics Scholastic Assessment Test (SAT-M) prior to taking an advanced placement calculus course, female students (n=85) scored as well as males (n=51) on the Advanced Placement BC level calculus test. Predictors of AP scores were: first, scores on the Calculus Readiness Test; second, scores on the SAT-M; and…
A Study of Mathematics Infusion in Middle School Technology Education Classes
ERIC Educational Resources Information Center
Burghardt, M. David; Hecht, Deborah; Russo, Maria; Lauckhardt, James; Hacker, Michael
2010-01-01
The present study examined the impact of introducing a mathematics infused engineering/technology education (ETE) curriculum on students' mathematics content knowledge and attitudes toward mathematics. The purpose of the present study was to: (a) compare the effects of a mathematics infused ETE curriculum and a control curriculum on student…
Romance of a Mathematician: Celebrating St Valentine's Day in a Mathematics Class
ERIC Educational Resources Information Center
Hekimoglu, Serkan
2005-01-01
Mathematics should not be studied simply because it is useful; mathematics should be also studied because it nurtures both the mind and soul with its beauty. By completing the four activities described in this paper, students will appreciate mathematical ideas both rationally and emotionally. Since students' appreciation of mathematical ideas…
Student Learning in Linear Algebra: The Gateways To Advance Mathematical Thinking Project.
ERIC Educational Resources Information Center
Manes, Michelle
This document provides a preliminary report of the study Gateways To Advance Mathematical Thinking (GAMT) run by Educational Development Center, Inc. (EDC). The study was designed to see what types of reasoning students who have recently completed a linear algebra course apply to problems in algebraic thinking. Student interviews were used as the…
ERIC Educational Resources Information Center
Niess, Margaret; Gillow-Wiles, Henry
2013-01-01
This primarily online Master's degree program focused on advancing K-8 teachers' interdisciplinary mathematical and science content knowledge while integrating appropriate digital technologies as learning and teaching tools. The mixed-method, interpretive study examined in-service teachers' technological, pedagogical, and content knowledge (TPACK)…
ERIC Educational Resources Information Center
Davis, Cinda-Sue; And Others
This volume includes 10 reports that present findings and recommendations for advancing women in science, mathematics and engineering. Critical issues facing women in these disciplines are addressed, including demographic myths and realities at various educational levels; the educational pipeline for girls and women; involvement in education and…
ERIC Educational Resources Information Center
DePountis, Vicki M.; Pogrund, Rona L.; Griffin-Shirley, Nora; Lan, William Y.
2015-01-01
This research examined the perspectives of teachers of students with visual impairments (TVIs) regarding the use and effectiveness of electronic assistive technology (EAT) purported to assist students who are blind in advanced mathematics subjects. The data for this study were collected via an online survey distributed to a convenience sample of…
ERIC Educational Resources Information Center
Lubienski, Sarah Theule
2006-01-01
In this paper, the author describes, from a personal standpoint, the highlights of her most relevant studies on the topic of reform and resistance in mathematics education. Having moved from being a working-class kid to a tenured professor, the author hopes that by sharing her observations and advice, others on a similar path might have a smoother…
ERIC Educational Resources Information Center
de Kock, Willem D.; Harskamp, Egbert G.
2014-01-01
Teachers in primary education experience difficulties in teaching word problem solving in their mathematics classes. However, during controlled experiments with a metacognitive computer programme, students' problem-solving skills improved. Also without the supervision of researchers, metacognitive computer programmes can be beneficial in a…
NASA Astrophysics Data System (ADS)
Rule, Audrey C.; Stefanich, Greg P.; Boody, Robert M.; Peiffer, Belinda
2011-04-01
Science, technology, engineering, and mathematics (STEM) fields, important in today's world, are underrepresented by students with disabilities. Students with visual impairments, although cognitively similar to sighted peers, face challenges as STEM subjects are often taught using visuals. They need alternative forms of access such as enlarged or audio-converted text, tactile graphics, and involvement in hands-on science. This project focused on increasing teacher awareness of and providing funds for the purchase of supplemental adaptive resources, supplies, and equipment. We examined attitude and instructional changes across the year of the programme in 15 science and mathematics teachers educating students with visual impairments. Positive changes were noted from pretest to posttest in student and teacher perspectives, and in teacher attitudes towards students with disabilities in STEM classes. Teachers also provided insights into their challenges and successes through a reflective narrative. Several adolescent students resisted accommodations to avoid appearing conspicuous to peers. Teachers implemented three strategies to address this: providing the adaptations to all students in the class; convincing the student of the need for adaptation; and involving the class in understanding and accepting the student's impairment. A variety of teacher-created adaptations for various science and mathematics labs are reported. Another finding was many adaptations provided for the student with visual impairment benefitted the entire class. This study supports the claim that given knowledgeable, supportive teachers, and with appropriate accommodations such as tactile or auditory materials, students with visual impairments can be as successful and engaged as other students in science and mathematics.
ERIC Educational Resources Information Center
Jansen, Amanda
2009-01-01
Prospective elementary teachers' (N = 148) motivation to participate in whole-class discussions during mathematics content courses for teachers, as expressed in their own words on an open-ended questionnaire, were studied. Results indicated that prospective teachers were motivated by positive utility values for participating (to achieve a…
Advancing Precollege Science and Mathematics Education in San Diego County
NASA Astrophysics Data System (ADS)
Schissel, D. P.; DIII--D Education Outreach Team
1996-11-01
The existing educational tour that was created by GA's Fusion Group has been enhanced this past year by an additional DIII--D tour station focusing on Radiation, Radioactivity, and Risk Assessment which includes ``hands-on'' demonstrations and environmental radiation risks. Additionally, with the assistance of local area science teachers, a new Electromagnetic Spectrum Curriculum was developed, field-tested, and assessed, with activities, demonstrations, and experiments to be used in science classes. Included were curriculum, workbook, and resource boxes supporting the curriculum with items not easily accessable to classrooms. A videotape ``Fusion, Nature's Fundamental Energy Source,'' was produced and incorporates animations giving an overview of fusion to be utilized as a tool for teachers in the classroom. A fusion poster was designed for high school classrooms to entice student inquiries, includes information about our fusion educational WWW site, and an e-mail address for science questions to the ``Wizard,'' which will be answered by scientists/ engineers from General Atomics' Fusion Group. These enhancements and planned projects will be presented.
White, Ronald J
2016-09-01
A class of steady-state compartmental models of the circulation is examined and it is shown that the mathematical problem for this model class involves a single nonlinear equation. In an important subclass and with certain assumptions regarding the form of the Starling-type cardiac function curves, the single equation is of the form Z = μ + λ log[(1 - Z)/Z] where μ and λ are mathematical parameters related to the physiological parameters of the system and Z is proportional to the cardiac output. This result holds regardless of the number and arrangement of compartments within the model itself or of the number of physiological parameters the model contains. An example of this class with 25 physiological parameters is presented to illustrate this approach. PMID:27587712
Proceedings: Workshop on advanced mathematics and computer science for power systems analysis
Esselman, W.H.; Iveson, R.H. )
1991-08-01
The Mathematics and Computer Workshop on Power System Analysis was held February 21--22, 1989, in Palo Alto, California. The workshop was the first in a series sponsored by EPRI's Office of Exploratory Research as part of its effort to develop ways in which recent advances in mathematics and computer science can be applied to the problems of the electric utility industry. The purpose of this workshop was to identify research objectives in the field of advanced computational algorithms needed for the application of advanced parallel processing architecture to problems of power system control and operation. Approximately 35 participants heard six presentations on power flow problems, transient stability, power system control, electromagnetic transients, user-machine interfaces, and database management. In the discussions that followed, participants identified five areas warranting further investigation: system load flow analysis, transient power and voltage analysis, structural instability and bifurcation, control systems design, and proximity to instability. 63 refs.
ERIC Educational Resources Information Center
Jaji, Gail
This document summarizes the findings of the Second International Mathematics Study relative to calculator and computer usage by students in 20 countries. Two target populations were identified. The data on these two populations were provided by three basic questionnaires: (1) a school questionnaire; (2) a teacher questionnaire; and (3) a student…
ERIC Educational Resources Information Center
Jaji, Gail
Presents a detailed discussion of the data collected on calculator and computer use in schools in 20 countries. The document includes discussion of: (1) school policy on calculator use; (2) description of populations A (8th grade students) and B (12th grade students) in the United States; (3) uses of calculators in subjects other than mathematics;…
ERIC Educational Resources Information Center
Benigno, Grace Marie R.
2012-01-01
This qualitative study examined the everyday mathematical experiences and understandings of three, 4-year-old, African-American children from working-class backgrounds. The study drew on Street, Baker, and Tomlin's (2005) broad, ideological model of mathematics as "social" and their analytic concepts of mathematical events (units of…
ERIC Educational Resources Information Center
Bray, Wendy S.
2011-01-01
This collective case study examines the influence of 4 third-grade teachers' beliefs and knowledge on their error-handling practices during class discussion of mathematics. Study findings suggest that, although teachers' ways of handling student errors during class discussion of mathematics are clearly linked to both teacher beliefs and teacher…
Perceptions that May Affect Teachers' Intention to Use Technology in Secondary Mathematics Classes
ERIC Educational Resources Information Center
Pierce, Robyn; Ball, Lynda
2009-01-01
Technology is available and accessible in many mathematics classrooms. Adopting technology to support teaching and learning requires teachers to change their teaching practices. This paper reports the responses of a diverse cohort of 92 secondary mathematics teachers who chose to respond to an Australian state-wide survey (Mathematics with…
The Effect of Manipulatives on Achievement Scores in the Middle School Mathematics Class
ERIC Educational Resources Information Center
Doias, Elaine D.
2013-01-01
When applied to mathematics education, manipulatives help students to visualize mathematical concepts and apply them to everyday situations. Interest in mathematics instruction has increased dramatically over the past two decades with the introduction of virtual manipulatives, as opposed to the concrete manipulatives that have been employed for…
7 CFR 1124.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Class prices, component prices, and advanced pricing factors. 1124.50 Section 1124.50 Agriculture Regulations of the Department of Agriculture (Continued... prices, and advanced pricing factors. See § 1000.50....
7 CFR 1124.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Class prices, component prices, and advanced pricing factors. 1124.50 Section 1124.50 Agriculture Regulations of the Department of Agriculture (Continued... prices, and advanced pricing factors. See § 1000.50....
7 CFR 1033.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Class prices, component prices, and advanced pricing factors. 1033.50 Section 1033.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1007.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Class prices, component prices, and advanced pricing factors. 1007.50 Section 1007.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1126.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Class prices, component prices, and advanced pricing factors. 1126.50 Section 1126.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1006.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Class prices, component prices, and advanced pricing factors. 1006.50 Section 1006.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1005.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Class prices, component prices, and advanced pricing factors. 1005.50 Section 1005.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1032.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Class prices, component prices, and advanced pricing factors. 1032.50 Section 1032.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1001.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Class prices, component prices, and advanced pricing factors. 1001.50 Section 1001.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1001.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Class prices, component prices, and advanced pricing factors. 1001.50 Section 1001.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1005.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Class prices, component prices, and advanced pricing factors. 1005.50 Section 1005.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1005.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Class prices, component prices, and advanced pricing factors. 1005.50 Section 1005.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1005.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Class prices, component prices, and advanced pricing factors. 1005.50 Section 1005.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1033.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Class prices, component prices, and advanced pricing factors. 1033.50 Section 1033.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1131.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Class prices, component prices, and advanced pricing factors. 1131.50 Section 1131.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1126.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Class prices, component prices, and advanced pricing factors. 1126.50 Section 1126.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1032.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Class prices, component prices, and advanced pricing factors. 1032.50 Section 1032.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1006.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Class prices, component prices, and advanced pricing factors. 1006.50 Section 1006.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1131.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Class prices, component prices, and advanced pricing factors. 1131.50 Section 1131.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1124.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Class prices, component prices, and advanced pricing factors. 1124.50 Section 1124.50 Agriculture Regulations of the Department of Agriculture (Continued... prices, and advanced pricing factors. See § 1000.50....
7 CFR 1006.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Class prices, component prices, and advanced pricing factors. 1006.50 Section 1006.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1007.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Class prices, component prices, and advanced pricing factors. 1007.50 Section 1007.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1032.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Class prices, component prices, and advanced pricing factors. 1032.50 Section 1032.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1006.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Class prices, component prices, and advanced pricing factors. 1006.50 Section 1006.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1001.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Class prices, component prices, and advanced pricing factors. 1001.50 Section 1001.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1033.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Class prices, component prices, and advanced pricing factors. 1033.50 Section 1033.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1032.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Class prices, component prices, and advanced pricing factors. 1032.50 Section 1032.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1007.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Class prices, component prices, and advanced pricing factors. 1007.50 Section 1007.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1007.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Class prices, component prices, and advanced pricing factors. 1007.50 Section 1007.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1030.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Class prices, component prices, and advanced pricing factors. 1030.50 Section 1030.50 Agriculture Regulations of the Department of Agriculture (Continued... prices, and advanced pricing factors. See § 1000.50....
7 CFR 1131.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Class prices, component prices, and advanced pricing factors. 1131.50 Section 1131.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1030.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Class prices, component prices, and advanced pricing factors. 1030.50 Section 1030.50 Agriculture Regulations of the Department of Agriculture (Continued... prices, and advanced pricing factors. See § 1000.50....
7 CFR 1030.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Class prices, component prices, and advanced pricing factors. 1030.50 Section 1030.50 Agriculture Regulations of the Department of Agriculture (Continued... prices, and advanced pricing factors. See § 1000.50....
7 CFR 1030.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Class prices, component prices, and advanced pricing factors. 1030.50 Section 1030.50 Agriculture Regulations of the Department of Agriculture (Continued... prices, and advanced pricing factors. See § 1000.50....
7 CFR 1124.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Class prices, component prices, and advanced pricing factors. 1124.50 Section 1124.50 Agriculture Regulations of the Department of Agriculture (Continued... prices, and advanced pricing factors. See § 1000.50....
7 CFR 1007.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Class prices, component prices, and advanced pricing factors. 1007.50 Section 1007.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1126.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Class prices, component prices, and advanced pricing factors. 1126.50 Section 1126.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1131.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Class prices, component prices, and advanced pricing factors. 1131.50 Section 1131.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1126.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Class prices, component prices, and advanced pricing factors. 1126.50 Section 1126.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1033.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 9 2013-01-01 2013-01-01 false Class prices, component prices, and advanced pricing factors. 1033.50 Section 1033.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1032.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Class prices, component prices, and advanced pricing factors. 1032.50 Section 1032.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1033.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Class prices, component prices, and advanced pricing factors. 1033.50 Section 1033.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1005.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Class prices, component prices, and advanced pricing factors. 1005.50 Section 1005.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1006.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 9 2012-01-01 2012-01-01 false Class prices, component prices, and advanced pricing factors. 1006.50 Section 1006.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1001.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 7 Agriculture 9 2010-01-01 2009-01-01 true Class prices, component prices, and advanced pricing factors. 1001.50 Section 1001.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1001.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 9 2011-01-01 2011-01-01 false Class prices, component prices, and advanced pricing factors. 1001.50 Section 1001.50 Agriculture Regulations of the Department of Agriculture (Continued..., and advanced pricing factors. See § 1000.50....
7 CFR 1124.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Class prices, component prices, and advanced pricing factors. 1124.50 Section 1124.50 Agriculture Regulations of the Department of Agriculture (Continued... prices, and advanced pricing factors. See § 1000.50....
7 CFR 1030.50 - Class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 9 2014-01-01 2013-01-01 true Class prices, component prices, and advanced pricing factors. 1030.50 Section 1030.50 Agriculture Regulations of the Department of Agriculture (Continued... prices, and advanced pricing factors. See § 1000.50....
The Impact of an Online Component in a Face-to-Face Community College Mathematics Class
ERIC Educational Resources Information Center
Dawson, Caroline
2013-01-01
A recent trend in the traditional mathematics classroom is the use of online homework systems. Where traditional homework problems are retrieved from a textbook, online homework systems provide problems online and permit students to interact with the system in order to complete homework assignments. Mathematics instructors who use or who wish to…
Geometry Students' Self-Determination and Their Engagement in Mathematical Whole Class Discussion
ERIC Educational Resources Information Center
Kosko, Karl W.
2015-01-01
Prevalent characteristics of effective mathematical discourse in the literature include student autonomy, a positive social environment, and a degree of perceived mathematical competence. These characteristics are also found in Self-Determination Theory (SDT), which posits that actions are self-regulated when students' autonomy, competence, and…
ERIC Educational Resources Information Center
Fuller, Edgar; Deshler, Jessica M.; Kuhn, Betsy; Squire, Douglas
2014-01-01
In 2007 the Department of Mathematics at our institution began developing a placement process designed to identify at-risk students entering mathematics courses at the College Algebra and Calculus levels. Major changes in our placement testing process and the resulting interventions for at-risk students were put in place in Fall of 2008. At the…
Historical Research: How to Fit Minority and Women's Studies into Mathematics Class
ERIC Educational Resources Information Center
Saraco, Margaret R.
2008-01-01
This article presents a lesson for studying minority and women's contributions to the field of mathematics in the middle school classroom. This lesson may be able to stem the tide of the shrinking number of students entering the field of mathematics by helping them become interested in its history. Nonetheless, this project encourages students to…
The Problem Is the Solution: Creating Original Problems in Gifted Mathematics Classes
ERIC Educational Resources Information Center
Matsko, Vince; Thomas, Jerald
2014-01-01
The purpose of this exploratory study was to assess the effect of a novel approach to mathematics instruction on gifted high school students' engagement, motivation, and metacognition. Participants in this study included gifted students who were enrolled in a 3-year, residential, specialized mathematics and science high school. Rather than…
Effectiveness of Variations in Collaborative Cooperative Learning in RDS Mathematics Classes.
ERIC Educational Resources Information Center
Harding, R. Frederick; Fletcher, Richard K., Jr.
Alarming questions are being asked of the teaching methods in present use. Are we maximizing the time on task in the classroom? Students (n=98) in a remedial mathematics course were studied for one semester and students (n=56) from a developmental mathematics course were studied in the second semester, at Tennessee Technological University.…
ERIC Educational Resources Information Center
Stathopoulou, Charoula; Kalabasis, Fragiskos
2007-01-01
This communication discusses an aspect of language and culture that informs the identity of a group of Romany students as they learn mathematics. Observations were made by the authors in a multicultural community in Athens. We explore how Romany language roles and features significantly affect the teaching and learning of mathematics. As examples,…
ERIC Educational Resources Information Center
Githua, Bernard N.; Nyabwa, Rachel Angela
2008-01-01
Students have continued to perform poorly in KCSE examinations in certain mathematics topics taught in secondary schools in Kenya. One such topic is commercial arithmetic. Successful teaching of mathematics depends partly on correct use of teaching methods in classroom settings. This study sought to examine how the use of advance organisers during…
Schissel, D.P.
1996-08-01
This report discusses advancing precollege science and mathematics education in San Diego Count. Described in this report are: curriculum and teacher development; pre-tour material; facility tour; student workbook; evaluation and assessment; and internet access.
ERIC Educational Resources Information Center
Turner, Erin E.; Drake, Corey; McDuffie, Amy Roth; Aguirre, Julia; Bartell, Tonya Gau; Foote, Mary Q.
2012-01-01
Research repeatedly documents that teachers are underprepared to teach mathematics effectively in diverse classrooms. A critical aspect of learning to be an effective mathematics teacher for diverse learners is developing knowledge, dispositions, and practices that support building on children's mathematical thinking, as well as their cultural,…
ERIC Educational Resources Information Center
Luther, Kenneth H.
2012-01-01
Mathematical modeling of groundwater flow is a topic at the intersection of mathematics and geohydrology and is rarely encountered in undergraduate mathematics. However, this subject is full of interesting and meaningful examples of truly "applied" mathematics accessible to undergraduates, from the pre-calculus to advanced mathematics levels. This…
NASA Astrophysics Data System (ADS)
Ganguly, Sujoy; Liang, Xin; Grace, Michael; Lee, Daniel; Howard, Jonathon
The morphology of neurons is diverse and reflects the diversity of neuronal functions, yet the principles that govern neuronal morphogenesis are unclear. In an effort to better understand neuronal morphogenesis we will be focusing on the development of the dendrites of class IV sensory neuron in Drosophila melanogaster. In particular we attempt to determine how the the total length, and the number of branches of dendrites are mathematically related to the dynamics of neurite growth and branching. By imaging class IV neurons during early embryogenesis we are able to measure the change in neurite length l (t) as a function of time v (t) = dl / dt . We found that the distribution of v (t) is well characterized by a hyperbolic secant distribution, and that the addition of new branches per unit time is well described by a Poisson process. Combining these measurements with the assumption that branching occurs with equal probability anywhere along the dendrite we were able to construct a mathematical model that provides reasonable agreement with the observed number of branches, and total length of the dendrites of the class IV sensory neuron.
ERIC Educational Resources Information Center
Sanderson, Geoffrey T.
2014-01-01
Beginning in 2006, Maryland has led the nation as the state with the highest percentage of graduates who earned one or more Advanced Placement (AP) exam scores of 3 or higher. Students in the Montgomery County Public Schools (MCPS) Class of 2013 continued to outperform students in the state of Maryland and the nation on AP examinations, based on…
ERIC Educational Resources Information Center
Marks, Susan F.
2013-01-01
Students in the Montgomery County (Maryland) Public Schools (MCPS) Class of 2012 continued to outperform Maryland and the nation on Advanced Placement (AP) examinations based on the "AP Report to the Nation" released by the College Board on February 20, 2013. In 2012, 67.3 percent of MCPS graduates took one or more AP exams. A striking…
ERIC Educational Resources Information Center
Bell, Mozelle Sawyer; Arribas, E. Jaime
This Spanish ecology packet contains resource units and materials for intermediate and advanced Spanish classes. It is designed to be used for individual and small-group instruction in the senior high school to supplement the Spanish language curriculum. Included are articles, pictures, and cartoons from Spanish-language newspapers and magazines…
ERIC Educational Resources Information Center
Sanderson, Geoffrey T.
2015-01-01
Beginning in 2006, Maryland has led the nation as the state with the highest percentage of graduates who earned one or more Advanced Placement (AP) exam scores of 3 or higher. Students in the Montgomery County (Maryland) Public Schools (MCPS) Class of 2014 continued to outperform students in the state of Maryland on AP examinations based on AP…
The Effectiveness of Single-Gender Eighth-Grade English, History, Mathematics and Science Classes
ERIC Educational Resources Information Center
Roth, Douglas Jeffrey
2009-01-01
Purpose, scope, and method of study. The purpose of this study was to compare the effectiveness of eighth-grade single-gender classes with coed classes across subject area, gender, at-risk status, and socioeconomic status (SES). The sample was drawn from one school, DeSoto West Junior High School, where enrollment averages 80% African American,…
Not Available
1990-12-01
The issue of global warming and related climatic changes from increasing concentrations of greenhouse gases in the atmosphere has received prominent attention during the past few years. The Computer Hardware, Advanced Mathematics, and Model Physics (CHAMMP) Climate Modeling Program is designed to contribute directly to this rapid improvement. The goal of the CHAMMP Climate Modeling Program is to develop, verify, and apply a new generation of climate models within a coordinated framework that incorporates the best available scientific and numerical approaches to represent physical, biogeochemical, and ecological processes, that fully utilizes the hardware and software capabilities of new computer architectures, that probes the limits of climate predictability, and finally that can be used to address the challenging problem of understanding the greenhouse climate issue through the ability of the models to simulate time-dependent climatic changes over extended times and with regional resolution.
Characterizing Instructor Gestures in a Lecture in a Proof-Based Mathematics Class
ERIC Educational Resources Information Center
Weinberg, Aaron; Fukawa-Connelly, Tim; Wiesner, Emilie
2015-01-01
Researchers have increasingly focused on how gestures in mathematics aid in thinking and communication. This paper builds on Arzarello's (2006) idea of a "semiotic bundle" and several frameworks for describing individual gestures and applies these ideas to a case study of an instructor's gestures in an undergraduate abstract algebra…
Single-Sex Mathematics Classes in a Co-Educational Setting: A Case Study.
ERIC Educational Resources Information Center
Leder, Gilah C.; Forgasz, Helen J.
Gender differences in mathematics learning continue to attract much research attention. Single-sex settings as the preferred option for improving schooling for girls have evoked fierce advocates as well as critics. This case study, undertaken in response to a specific request from a co-educational state school in the outer area of Melbourne,…
ERIC Educational Resources Information Center
Hernandez-Martinez, Paul; Black, Laura; Williams, Julian; Davis, Pauline; Pampaka, Maria; Wake, Geoff
2008-01-01
This paper reports how students talk about their aspirations in regard to higher education (HE) and their mathematics, what "repertoires" they use to mediate this discourse, and how students' predominant "repertoire style" relates to their cultural background. Our analyses draw on an interview sample (n=40) of students selected because they are…
ERIC Educational Resources Information Center
Seo, Daeryong; Park, Yong Hui
A goal mediational model to conceptualize the effects of students' motivational beliefs on their learning strategies was modified with the three goal orientations: task, performance-approach, and performance-avoidance goals. Questionnaires were administered to 161 Korean fifth graders (boys = 88; girls = 73) in an elementary school math class.…
ERIC Educational Resources Information Center
Cohen, Jeremy A.
2012-01-01
This study concentrated on the characteristics of Grade 2 students' writing in mathematics class who used the Project M[superscript 2] units to learn geometry and measurement. Included in the study were students with high and low levels of content knowledge. Archived data from the Project M[superscript 2] study were analyzed to determine the…
Mathematical Modeling of Food Supply for Long Term Space Missions Using Advanced Life Support
NASA Technical Reports Server (NTRS)
Cruthirds, John E.
2003-01-01
A habitat for long duration missions which utilizes Advanced Life Support (ALS), the Bioregenerative Planetary Life Support Systems Test Complex (BIO-Plex), is currently being built at JSC. In this system all consumables will be recycled and reused. In support of this effort, a menu is being planned utilizing ALS crops that will meet nutritional and psychological requirements. The need exists in the food system to identify specific physical quantities that define life support systems from an analysis and modeling perspective. Once these quantities are defined, they need to be fed into a mathematical model that takes into consideration other systems in the BIO-Plex. This model, if successful, will be used to understand the impacts of changes in the food system on the other systems and vice versa. The Equivalent System Mass (ESM) metric has been used to describe systems and subsystems, including the food system options, in terms of the single parameter, mass. There is concern that this approach might not adequately address the important issues of food quality and psychological impact on crew morale of a supply of fiesh food items. In fact, the mass of food can also depend on the quality of the food. This summer faculty fellow project will involve creating an appropriate mathematical model for the food plan developed by the Food Processing System for BIO-Plex. The desired outcome of this work will be a quantitative model that can be applied to the various options of supplying food on long-term space missions.
Teachers' strategies for implementation of de-streaming in secondary mathematics classes
NASA Astrophysics Data System (ADS)
Haimes, David
1999-09-01
Moves toward the adoption of a middle school philosophy and to outcomes-focused education, both of which are apparent in Australia, are likely to be accompanied by a move away from streaming or tracking students into ability groups. It is claimed that successful teaching of students in unstreamed classes requires an enriched program that caters for the needs of the wide range of students, new approaches to instruction, and the adoption of a variety of assessment strategies. This study reports on the strategies adopted by a group of teachers in Ontario, Canada, as they implemented de-streaming with Grade 9 classes. Teachers were found to be making special provision for both low- and high-achieving students and employing a wide range of techniques for assessing student progress. However, they did not embrace cooperative learning techniques as one of their teaching strategies, nor was problem solving found to be a prominent feature of their lessons.
NASA Astrophysics Data System (ADS)
Gonczarek, Ryszard; Krzyzosiak, Mateusz; Gonczarek, Adam; Jacak, Lucjan
2015-06-01
In this paper, we discuss the mathematical structure of the s-wave superconducting gap and other quantitative characteristics of superconducting systems. In particular, we evaluate and discuss integrals inherent in fundamental equations describing superconducting systems. The results presented here extend the approach formulated by Abrikosov and Maki, which was restricted to the first-order expansion. A few infinite families of integrals are derived and allow us to express the fundamental equations by means of analytic formulas. They can be then exploited in order to find some quantitative characteristics of superconducting systems by the method of successive approximations. We show that the results can be applied to some modern formalisms in order to study high-Tc superconductors and other superconducting materials of the new generation.
In-Situ Assays Using a New Advanced Mathematical Algorithm - 12400
Oginni, B.M.; Bronson, F.L.; Field, M.B.; Lamontagne, J.; LeBlanc, P.J.; Morris, K.E.; Mueller, W.F.; Atrashkevich, V.
2012-07-01
Current mathematical efficiency modeling software for in-situ counting, such as the commercially available In-Situ Object Calibration Software (ISOCS), typically allows the description of measurement geometries via a list of well-defined templates which describe regular objects, such as boxes, cylinder, or spheres. While for many situations, these regular objects are sufficient to describe the measurement conditions, there are occasions in which a more detailed model is desired. We have developed a new all-purpose geometry template that can extend the flexibility of current ISOCS templates. This new template still utilizes the same advanced mathematical algorithms as current templates, but allows the extension to a multitude of shapes and objects that can be placed at any location and even combined. In addition, detectors can be placed anywhere and aimed at any location within the measurement scene. Several applications of this algorithm to in-situ waste assay measurements, as well as, validations of this template using Monte Carlo calculations and experimental measurements are studied. Presented in this paper is a new template of the mathematical algorithms for evaluating efficiencies. This new template combines all the advantages of the ISOCS and it allows the use of very complex geometries, it also allows stacking of geometries on one another in the same measurement scene and it allows the detector to be placed anywhere in the measurement scene and pointing in any direction. We have shown that the template compares well with the previous ISOCS software within the limit of convergence of the code, and also compare well with the MCNPX and measured data within the joint uncertainties for the code and the data. The new template agrees with ISOCS to within 1.5% at all energies. It agrees with the MCNPX to within 10% at all energies and it agrees with most geometries within 5%. It finally agrees with measured data to within 10%. This mathematical algorithm can now be
ERIC Educational Resources Information Center
Stanford Univ., CA. School Mathematics Study Group.
This text is the fourth of five in the Secondary School Advanced Mathematics (SSAM) series which was designed to meet the needs of students who have completed the Secondary School Mathematics (SSM) program, and wish to continue their study of mathematics. This text begins with a brief discussion of quadratic equations which motivates the…
ERIC Educational Resources Information Center
Richardson, Sandra
2009-01-01
This article describes experiences from a professional development project designed to prepare in-service eighth-grade mathematics teachers to develop, explore, and advance technological pedagogical content knowledge (TPCK) in the teaching and learning of Algebra I. This article describes the process of the participating teachers' mathematical…
ERIC Educational Resources Information Center
Roschelle, Jeremy; Shechtman, Nicole; Tatar, Deborah; Hegedus, Stephen; Hopkins, Bill; Empson, Susan; Knudsen, Jennifer; Gallagher, Lawrence P.
2010-01-01
The authors present three studies (two randomized controlled experiments and one embedded quasi-experiment) designed to evaluate the impact of replacement units targeting student learning of advanced middle school mathematics. The studies evaluated the SimCalc approach, which integrates an interactive representational technology, paper curriculum,…
ERIC Educational Resources Information Center
Scarborough, Jule Dee
2004-01-01
This document (book) reports on the Strategic Alliance to Advance Technological Education through Enhanced Mathematics, Science, Technology, and English Education at the Secondary Level, funded by National Science Foundation. It was a collaborative partnership involving the Rockford Public Schools, Rock Valley College, and Northern Illinois…
NASA Astrophysics Data System (ADS)
Anggriani, N.; Supriatna, A. K.; Soewono, E.
2013-04-01
In this paper we formulate a model of dengue fever transmission by considering the presence of asymptomatic and symptomatic compartments. The model takes the form as a system of differential equations representing a host-vector SIR (Susceptible - Infective -Recovered) disease transmission. It is assumed that both host and vector populations are constant. It is also assumed that reinfection of recovered hosts by the disease is possible due to a wanning immunity in human body. We analyze the model to determine the qualitative behavior of the model solution and use the concept of effective basic reproduction number (fraktur Rp) as a control criteria of the disease transmission. The effect of mosquito biting protection (e.g. by using insect repellent) is also considered. We compute the long-term ratio of the asymptomatic and symptomatic classes and show a condition for which the iceberg phenomenon could appear.
NASA Astrophysics Data System (ADS)
Pierre-Louis, Fred
The purpose of this study was to describe Markdale High School's change from separate college preparatory and general level classes to heterogeneously-grouped classes in English, mathematics, science, and social studies, with particular emphasis on the principal's leadership style, change process, and teacher concerns (Hall & Hord, 2006) experienced during this effort. The researcher used Hall and Hord's (2006) Concern-Based Adoption Model (CBAM) as a conceptual framework. Specifically, the researcher applied three elements of the CBAM model: (a) the Twelve Principles of Change, (b) the Change Facilitator Styles, and (c) the Stages of Concerns. Hall and Hord's framework served as a lens through which the researcher analyzed all data. The researcher used a mixed-method (qualitative and quantitative) approach to answer the four research questions. The participants completed three instruments: (a) the Stages of Concern Questionnaire (SoCQ), (b) the Principles of Change Survey, and (c) the Facilitator Style Survey. All three instruments were self-report, paper-pencil surveys. The sample included 72 faculty members who experienced the change over the past three years. Findings from the three data sources and the school principal's comments during debriefing are indicated for each research question and reported by unit of analysis. Respective to the research questions, the researcher concluded that: (1) Markdale High School accomplished the change by implementing both structural and instructional changes supporting to the change to heterogeneous grouping; (2) even though teachers had divergent opinions on the school principal's facilitation style, the principal thought of himself as an incrementalist and a practitioner of differentiated facilitation styles; (3) while half of the faculty felt that they received formal training on heterogeneous grouping, (4) half felt that they did not have a choice in the decision-making process as it occurred with college preparatory and
ERIC Educational Resources Information Center
Aneckstein, Laura; Baird, Andrea; Butler, Margaret; Chambers, David; Johnson, Wanda; Kraus, Rebecca; Mann, Eric; Trost, Tami; Zalokar, Nadja; Zieseniss, Mireille
This report focuses on the Office for Civil Rights' (OCR's) activities relating to Title IX and advanced mathematics, science, and technology education for girls. It examines some of the barriers and inequities that undermine girls' opportunities to choose college majors and enter careers in the advanced mathematics, science, and technology…
A class of optimum digital phase locked loops for the DSN advanced receiver
NASA Technical Reports Server (NTRS)
Hurd, W. J.; Kumar, R.
1985-01-01
A class of optimum digital filters for digital phase locked loop of the deep space network advanced receiver is discussed. The filter minimizes a weighted combination of the variance of the random component of the phase error and the sum square of the deterministic dynamic component of phase error at the output of the numerically controlled oscillator (NCO). By varying the weighting coefficient over a suitable range of values, a wide set of filters are obtained such that, for any specified value of the equivalent loop-noise bandwidth, there corresponds a unique filter in this class. This filter thus has the property of having the best transient response over all possible filters of the same bandwidth and type. The optimum filters are also evaluated in terms of their gain margin for stability and their steady-state error performance.
NASA Astrophysics Data System (ADS)
Durig, Douglas T.
For my advanced astronomy class, Physics 251, many of our laboratory exercises were cooperative assignments where each student contributed observations and data towards a common goal. Observations of supernovae and gamma-ray burst afterglow candidates were natural targets of opportunity. This past Spring Semester we observed SN 2002ap and GRB020406. We observed the supernova with R and V filters and unfiltered several nights near maximum. We also observed the error region near GRB020406 and found some new, dim, vary cool infrared rich stars. The results from these observations will be reported. These targets provided excellent, applied examples of the material being covered in lecture.
Analyzing the Teaching of Advanced Mathematics Courses via the Enacted Example Space
ERIC Educational Resources Information Center
Fukawa-Connelly, Timothy Patrick; Newton, Charlene
2014-01-01
Examples are believed to be very important in developing conceptual understanding of mathematical ideas, useful both in mathematics research and instruction (Bills & Watson in "Educational Studies in Mathematics" 69:77-79, 2008; Mason & Watson, 2008; Bills & Tall, 1998; Tall & Vinner, 1981). In this study, we draw on the…
ERIC Educational Resources Information Center
Krutka, Daniel G.
2012-01-01
Prevalent models of secondary education in the United States have tended to privilege the acquisition of knowledge of scientific disciplines that is often peripheral to the experiences of students. My Advanced Placement Government classes were no different, and this caused me to wonder whether my classes were meeting the often-stated goal of the…
ERIC Educational Resources Information Center
Van de gaer, Eva; Pustjens, Heidi; Van Damme, Jan; De Munter, Agnes
2004-01-01
In this study, the effects of single-sex versus co-educational classes and schools on the progress in language and mathematics of boys and girls at the end of the second year of secondary education are investigated. Data from the Longitudinaal Onderzoek Secundair Onderwijs project are used. Multilevel analyses were carried out on a sample of…
ERIC Educational Resources Information Center
Texas Univ., Austin. Research and Development Center for Teacher Education.
This paper reports the analysis of data gathered during a six-week period in spring, 1983, in two junior high school classes in each of three subject areas: science, mathematics, and English. The purpose is to describe and propose some images or metaphors for depicting the processes associated with the enactment of tasks in these classrooms.…
ERIC Educational Resources Information Center
Wehde-Roddiger, Christina, Trevino, Rolando; Anderson, Pamela; Arrambide, Teresa; O'Conor, Juana; Onwuegbuzie, Anthony J.
2012-01-01
As high schools offer more pre-Advanced Placement (pre-AP) and Advanced Placement (AP) courses to prepare students for college academics, students often are given quality grade point average (GPA) points to help compensate for the rigorous curriculum. In states where class ranking determines automatic university admission, fluctuations of class…
ERIC Educational Resources Information Center
Howard, Lori A.; Potts, Elizabeth A.; Linz, Ed
2013-01-01
As the federal government encourages all students to attempt advanced math and science courses, more students with disabilities are enrolling in Advanced Placement (AP) science classes. AP science teachers can better serve these students by understanding the various types of disabilities (whether physical, learning, emotional, or behavioral),…
ERIC Educational Resources Information Center
Noyes, Andrew
2012-01-01
The 2007 Trends in International Mathematics and Science Survey highlighted how attitudes to mathematics had declined sharply for students in many of the high attaining countries in the survey, England being no exception. There is a notable drop in positive attitudes to mathematics between 9 and 14, as well as a remarkable decline for 14 year olds…
ERIC Educational Resources Information Center
Hansen-Thomas, Holly
2009-01-01
Traditionally, mathematics has been considered easy for English language learners (ELLs) due to the belief that math is a "universal language." At the same time, reform-oriented mathematics curricula, designed to promote mathematical discourse, are increasingly being adopted by schools serving large numbers of ELLs. CMP, the Connected Math…
Students in Rural Schools Have Limited Access to Advanced Mathematics Courses. Issue Brief No. 7
ERIC Educational Resources Information Center
Graham, Suzanne E.
2009-01-01
This Carsey brief reveals that students in rural areas and small towns have less access to higher-level mathematics courses than students in urban settings, which results in serious educational consequences, including lower scores on assessment tests and fewer qualified students entering science, technology, engineering, and mathematics (STEM) job…
Code of Federal Regulations, 2010 CFR
2010-01-01
...-Advanced High Power Rockets— (a) At any altitude where clouds or obscuring phenomena of more than five...) Into any cloud; (d) Between sunset and sunrise without prior authorization from the FAA; (e) Within...
Code of Federal Regulations, 2012 CFR
2012-01-01
...-Advanced High Power Rockets— (a) At any altitude where clouds or obscuring phenomena of more than five...) Into any cloud; (d) Between sunset and sunrise without prior authorization from the FAA; (e) Within...
Code of Federal Regulations, 2013 CFR
2013-01-01
...-Advanced High Power Rockets— (a) At any altitude where clouds or obscuring phenomena of more than five...) Into any cloud; (d) Between sunset and sunrise without prior authorization from the FAA; (e) Within...
Code of Federal Regulations, 2014 CFR
2014-01-01
...-Advanced High Power Rockets— (a) At any altitude where clouds or obscuring phenomena of more than five...) Into any cloud; (d) Between sunset and sunrise without prior authorization from the FAA; (e) Within...
Code of Federal Regulations, 2011 CFR
2011-01-01
...-Advanced High Power Rockets— (a) At any altitude where clouds or obscuring phenomena of more than five...) Into any cloud; (d) Between sunset and sunrise without prior authorization from the FAA; (e) Within...
ERIC Educational Resources Information Center
Hillman, Thomas
2014-01-01
This article examines mathematical activity with digital technology by tracing it from its development through its use in classrooms. Drawing on material-semiotic approaches from the field of Science and Technology Studies, it examines the visions of mathematical activity that developers had for an advanced graphing calculator. It then follows the…
METSAT: Advanced Microwave Sounding Unit-A2 (AMSU-A2) structural mathematical model
NASA Technical Reports Server (NTRS)
Ely, Wayne
1995-01-01
This plan describes the Structural Mathematical Model of the METSAT AMSU-A2 instrument. The model is used to verify the structural adequacy of the AMSU-A2 instrument for the specified loading environments.
ERIC Educational Resources Information Center
Enoch, Sarah Elizabeth
2013-01-01
While professional developers have been encouraging teachers to plan for discourse around problem solving tasks as a way to orchestrate mathematically productive discourse (Stein, Engle, Smith, & Hughes, 2008; Stein, Smith, Henningsen, & Silver, 2009) no research has been conducted explicitly examining the relationship between the plans…
ERIC Educational Resources Information Center
Muir, Tracey; Geiger, Vince
2016-01-01
Teaching secondary mathematics has a number of challenges, including the expectations that teachers cover the prescribed curriculum, help students learn difficult concepts, prepare students for future studies, and, increasingly, that they do so incorporating digital technologies. This study investigates a teacher's, and his students', perceptions…
ERIC Educational Resources Information Center
Wood, William B.
2002-01-01
A recently released National Research Council (NRC) report, "Learning and Understanding: Improving Advanced Study of Mathematics and Science in U.S. High Schools", evaluated and recommended changes in the Advanced Placement (AP), International Baccalaureate (IB), and other advanced secondary school science programs. As part of this study,…
ERIC Educational Resources Information Center
Williams, Lori
2010-01-01
Mathematical discussions support and promote student learning as an integral part of the contexts in which students learn mathematics. Yet, American school practices often focus on teachers disseminating knowledge to students and students acquiring that knowledge through rote rehearsal rather than higher order thinking. One barrier to change in…
ERIC Educational Resources Information Center
Baker, Meryl S.
Instructors of 41 Navy electronics "C" courses were presented with a list of 70 mathematics skills and asked to indicate: (1) how important they were to successful course performance, and (2) whether required skills were prerequisite to, reviewed in, or taught in the course. Based on results obtained, a mathematical skills test was developed for…
ERIC Educational Resources Information Center
Isiksal-Bostan, Mine; Sahin, Elvan; Ertepinar, Hamide
2015-01-01
The purpose of this study was to examine the relationships among Turkish classroom, science and mathematics teachers' beliefs toward using inquiry-based approaches, traditional teaching approaches, and technology in their mathematics and science classrooms; their efficacy beliefs in teaching those subjects; and years of experience in teaching in…
ERIC Educational Resources Information Center
Kerr, Roberta
2014-01-01
The purpose of this study was to obtain an accurate picture of minority student enrollment in honors and advanced placement (AP) classes at Wichita (Kansas) High School East and to develop a plan of action to close the achievement gap between White and non-White students. Prior to this study there was no clear, concise data to move this discussion…
NASA Astrophysics Data System (ADS)
Muir, Tracey; Geiger, Vince
2016-03-01
Teaching secondary mathematics has a number of challenges, including the expectations that teachers cover the prescribed curriculum, help students learn difficult concepts, prepare students for future studies, and, increasingly, that they do so incorporating digital technologies. This study investigates a teacher's, and his students', perceptions of the benefits or otherwise of a flipped classroom approach in meeting these challenges, within a prescribed curriculum context. Data collection instruments included a survey designed to investigate the nature of students' engagement with the flipped approach and semi-structured student and teacher interviews. Analysis of these data indicated that the teacher and students were positive about their experiences with a flipped classroom approach and that students were motivated to engage with the teacher-created online mathematics resources. The study adds to the limited research literature related to student and teacher perceptions of the affordances of the flipped classroom approach and has implications for secondary mathematics teachers who face the challenge of the twin demands of covering the prescribed curriculum and catering for a range of students' learning needs.
Teaching Mathematical Modeling in Mathematics Education
ERIC Educational Resources Information Center
Saxena, Ritu; Shrivastava, Keerty; Bhardwaj, Ramakant
2016-01-01
Mathematics is not only a subject but it is also a language consisting of many different symbols and relations. Taught as a compulsory subject up the 10th class, students are then able to choose whether or not to study mathematics as a main subject. The present paper discusses mathematical modeling in mathematics education. The article provides…
Code of Federal Regulations, 2012 CFR
2012-10-01
... 48 Federal Acquisition Regulations System 5 2012-10-01 2012-10-01 false Patent rights-management and operating contracts, for-profit contractor, advance class waiver. 970.5227-12 Section 970.5227-12 Federal Acquisition Regulations System DEPARTMENT OF ENERGY AGENCY SUPPLEMENTARY REGULATIONS DOE MANAGEMENT AND OPERATING CONTRACTS...
Code of Federal Regulations, 2014 CFR
2014-10-01
... 48 Federal Acquisition Regulations System 5 2014-10-01 2014-10-01 false Patent rights-management and operating contracts, for-profit contractor, advance class waiver. 970.5227-12 Section 970.5227-12 Federal Acquisition Regulations System DEPARTMENT OF ENERGY AGENCY SUPPLEMENTARY REGULATIONS DOE MANAGEMENT AND OPERATING CONTRACTS...
Wind-tunnel evaluation of an advanced main-rotor blade design for a utility-class helicopter
NASA Technical Reports Server (NTRS)
Yeager, William T., Jr.; Mantay, Wayne R.; Wilbur, Matthew L.; Cramer, Robert G., Jr.; Singleton, Jeffrey D.
1987-01-01
An investigation was conducted in the Langley Transonic Dynamics Tunnel to evaluate differences between an existing utility-class main-rotor blade and an advanced-design main-rotor blade. The two rotor blade designs were compared with regard to rotor performance oscillatory pitch-link loads, and 4-per-rev vertical fixed-system loads. Tests were conducted in hover and over a range of simulated full-scale gross weights and density altitude conditions at advance ratios from 0.15 to 0.40. Results indicate that the advanced blade design offers performance improvements over the baseline blade in both hover and forward flight. Pitch-link oscillatory loads for the baseline rotor were more sensitive to the test conditions than those of the advanced rotor. The 4-per-rev vertical fixed-system load produced by the advanced blade was larger than that produced by the baseline blade at all test conditions.
Zeros and Ones in Advanced Mathematics: Transcending the Intimacy of Number.
ERIC Educational Resources Information Center
Nardi, Elena
2000-01-01
Examines how components of the concept of function (variable, domain, and range) and the process-object duality in its nature emerge as highly relevant to student learning in various mathematical contexts related to linear and abstract algebra. (Contains 22 references.) (ASK)
Clickers and Classroom Voting in a Transition to Advanced Mathematics Course
ERIC Educational Resources Information Center
Lockard, Shannon R.; Metcalf, Rebecca C.
2015-01-01
Clickers and classroom voting are used across a number of disciplines in a variety of institutions. There are several papers that describe the use of clickers in mathematics classrooms such as precalculus, calculus, statistics, and even differential equations. This paper describes a method of incorporating clickers and classroom voting in a…
ERIC Educational Resources Information Center
Montiel, Mariana; Bhatti, Uzma
2010-01-01
This article presents an overview of some issues that were confronted when delivering an online second Linear Algebra course (assuming a previous Introductory Linear Algebra course) to graduate students enrolled in a Secondary Mathematics Education program. The focus is on performance in one particular aspect of the course: "change of basis" and…
ERIC Educational Resources Information Center
Leddy, Mark H.
2010-01-01
Americans with disabilities are underemployed in science, technology, engineering and mathematics (STEM) at higher rates than their nondisabled peers. This article provides an overview of the National science Foundation's Research in Disabilities Education (RDE) program, of technology use by students with disabilities (SWD) in STEM, and of…
Learner-Centered Strategies and Advanced Mathematics: A Study of Students' Perspectives
ERIC Educational Resources Information Center
Ortiz-Robinson, Norma L.; Ellington, Aimee J.
2009-01-01
A number of learner-centered strategies were implemented during a two-semester course in real analysis that is traditionally taught in lecture format. We seek to understand the role that these strategies can have in this proof-intensive theoretical mathematics classroom and the perceived benefits by the students. Although learner-centered…
NASA Astrophysics Data System (ADS)
Perdigão, Rui A. P.
2016-04-01
The fundamental stochastic-dynamic coevolution laws governing complex coevolutionary systems are introduced in a mathematical physics framework formally unifying nonlinear stochastic physics with fundamental deterministic interaction laws among spatiotemporally distributed processes. The methodological developments are then used to shed light onto fundamental interactions underlying complex spatiotemporal behaviour and emergence in multiscale hydroclimate dynamics. For this purpose, a mathematical physics framework is presented predicting evolving distributions of hydrologic quantities under nonlinearly coevolving geophysical processes. The functional formulation is grounded on first principles regulating the dynamics of each system constituent and their interactions, therefore its applicability is general and data-independent, not requiring local calibrations. Moreover, it enables the dynamical estimation of hydroclimatic variations in space and time from knowledge at different spatiotemporal conditions, along with the associated uncertainties. This paves the way for a robust physically based prediction of hydroclimatic changes in unsupervised areas (e.g. ungauged basins). Validation is achieved by producing, with the mathematical physics framework, a comprehensive spatiotemporal legacy consistent with the observed distributions along with their statistic-dynamic relations. The similarity between simulated and observed distributions is further assessed with novel robust nonlinear information-theoretic diagnostics. The present study brings to light emerging signatures of structural change in hydroclimate dynamics arising from nonlinear synergies across multiple spatiotemporal scales, and contributes to a better dynamical understanding and prediction of spatiotemporal regimes, transitions, structural changes and extremes in complex coevolutionary systems. This study further sheds light onto a diversity of emerging properties from harmonic to hyper-chaotic in general
Ni, Bing-Jie; Yuan, Zhiguo
2015-12-15
Nitrous oxide (N2O) can be emitted from wastewater treatment contributing to its greenhouse gas footprint significantly. Mathematical modeling of N2O emissions is of great importance toward the understanding and reduction of the environmental impact of wastewater treatment systems. This article reviews the current status of the modeling of N2O emissions from wastewater treatment. The existing mathematical models describing all the known microbial pathways for N2O production are reviewed and discussed. These included N2O production by ammonia-oxidizing bacteria (AOB) through the hydroxylamine oxidation pathway and the AOB denitrification pathway, N2O production by heterotrophic denitrifiers through the denitrification pathway, and the integration of these pathways in single N2O models. The calibration and validation of these models using lab-scale and full-scale experimental data is also reviewed. We conclude that the mathematical modeling of N2O production, while is still being enhanced supported by new knowledge development, has reached a maturity that facilitates the estimation of site-specific N2O emissions and the development of mitigation strategies for a wastewater treatment plant taking into the specific design and operational conditions of the plant. PMID:26451976
Current Advances in Mathematical Modeling of Anti-Cancer Drug Penetration into Tumor Tissues
Kim, MunJu; Gillies, Robert J.; Rejniak, Katarzyna A.
2013-01-01
Delivery of anti-cancer drugs to tumor tissues, including their interstitial transport and cellular uptake, is a complex process involving various biochemical, mechanical, and biophysical factors. Mathematical modeling provides a means through which to understand this complexity better, as well as to examine interactions between contributing components in a systematic way via computational simulations and quantitative analyses. In this review, we present the current state of mathematical modeling approaches that address phenomena related to drug delivery. We describe how various types of models were used to predict spatio-temporal distributions of drugs within the tumor tissue, to simulate different ways to overcome barriers to drug transport, or to optimize treatment schedules. Finally, we discuss how integration of mathematical modeling with experimental or clinical data can provide better tools to understand the drug delivery process, in particular to examine the specific tissue- or compound-related factors that limit drug penetration through tumors. Such tools will be important in designing new chemotherapy targets and optimal treatment strategies, as well as in developing non-invasive diagnosis to monitor treatment response and detect tumor recurrence. PMID:24303366
ERIC Educational Resources Information Center
Valverde, Gilbert A.; Schmidt, William H.
2000-01-01
Explores expectations regarding about student performance in educational systems of high-achieving countries using data from the United States and 21 other high-achieving countries that participated in the Third International Mathematics and Science Study (TIMSS). Demonstrates that levels of standards relate to levels of student attainment in…
ERIC Educational Resources Information Center
Foote, Mary Q.; Bartell, Tonya Gau
2012-01-01
Through this performance ethnography the authors present the stories of emerging scholars who in their research identify an interest in equity issues in the field of mathematics education. The article is based on life-story interviews with 26 participants. Six composite characters were developed to represent the voices of the participants.…
ERIC Educational Resources Information Center
Coats, Johnnie Hugh
2013-01-01
High-stakes testing has become crucial in public education, requiring students to meet increasingly higher standards, regardless of their ability levels. This causal-comparative study sought to determine the effectiveness of an intervention mathematics course in the middle school setting for at-risk, sixth grade students. The Georgia Criterion…
ERIC Educational Resources Information Center
Simonite, Vanessa
2005-01-01
This article shows how multilevel modelling can be used to study institutional variations in the gender differences in achievement. The results presented are from analyses of the degree classifications of 22,433 individuals who graduated in mathematical sciences, from universities in the UK, between 1994/95 and 1999/2000. The analyses were…
ERIC Educational Resources Information Center
Skaalvik, Einar M.; Federici, Roger A.
2016-01-01
The purpose of this study was to test possible interactions between mastery and performance goal structures in mathematics classrooms when predicting students' goal orientations. More specifically, we tested if the degree of performance goal structure moderated the associations between mastery goal structure and students' goal orientations.…
A Cross-Analysis of the Mathematics Teacher's Activity: An Example in a French 10th-Grade Class
ERIC Educational Resources Information Center
Robert, Aline; Rogalski, Janine
2005-01-01
The purpose of this paper is to contribute to the debate about how to tackle the issue of "the teacher in the teaching/learning process", and to propose a methodology for analysing the teacher's activity in the classroom, based on concepts used in the fields of the didactics of mathematics as well as in cognitive ergonomics. This methodology…
ERIC Educational Resources Information Center
Rule, Audrey C.; Stefanich, Greg P.; Boody, Robert M.; Peiffer, Belinda
2011-01-01
Science, technology, engineering, and mathematics (STEM) fields, important in today's world, are underrepresented by students with disabilities. Students with visual impairments, although cognitively similar to sighted peers, face challenges as STEM subjects are often taught using visuals. They need alternative forms of access such as enlarged or…
Accelerating Mathematics Achievement Using Heterogeneous Grouping
ERIC Educational Resources Information Center
Burris, Carol Corbett; Heubert, Jay P.; Levin, Henry M.
2006-01-01
This longitudinal study examined the effects of providing an accelerated mathematics curriculum in heterogeneously grouped middle school classes in a diverse suburban school district. A quasi-experimental cohort design was used to evaluate subsequent completion of advanced high school math courses as well as academic achievement. Results showed…
ERIC Educational Resources Information Center
Rozek, Christopher S.; Hyde, Janet S.; Svoboda, Ryan C.; Hulleman, Chris S.; Harackiewicz, Judith M.
2015-01-01
A foundation in science, technology, engineering, and mathematics (STEM) education is critical for students' college and career advancement, but many U.S. students fail to take advanced mathematics and science classes in high school. Research has neglected the potential role of parents in enhancing students' motivation for pursuing STEM courses.…
Evolution in Action, a Case Study Based Advanced Biology Class at Spelman College
ERIC Educational Resources Information Center
Pai, Aditi
2009-01-01
The Biology department at Spelman, a historically black women's college has undertaken a major curriculum revision in the last few years. A primary goal of this revision is to increase the breadth of topics in biology classes. Historically, classes in the areas of ecology and evolution have been underrepresented whereas Spelman has always offered…
Oral History Project: Advanced ESL Class, Local 259 U.A.W. 1985-86.
ERIC Educational Resources Information Center
Colon, Maria, Comp.; And Others
A class project undertaken in an English-as-a-Second-Language class is described and presented. Students participating in the project were union employees in a Manhattan electronics factory, and most were native Spanish speakers. The project's objective was to produce an illustrated book and tapes to document work and union experience in the…
NASA Technical Reports Server (NTRS)
Aiken, E. W.
1980-01-01
A mathematical model of an advanced helicopter is described. The model is suitable for use in control/display research involving piloted simulation. The general design approach for the six degree of freedom equations of motion is to use the full set of nonlinear gravitational and inertial terms of the equations and to express the aerodynamic forces and moments as the reference values and first order terms of a Taylor series expansion about a reference trajectory defined as a function of longitudinal airspeed. Provisions for several different specific and generic flight control systems are included in the model. The logic required to drive various flight control and weapon delivery symbols on a pilot's electronic display is also provided. Finally, the model includes a simplified representation of low altitude wind and turbulence effects. This model was used in a piloted simulator investigation of the effects of control system and display variations for an attack helicopter mission.
ERIC Educational Resources Information Center
Ruthven, Kenneth
2014-01-01
Reports from 13 Further Mathematics Knowledge Networks supported by the National Centre for Excellence in the Teaching of Mathematics [NCETM] are analysed. After summarizing basic characteristics of the networks regarding leadership, composition and pattern of activity, each of the following aspects is examined in greater depth: Developmental aims…
NASA Astrophysics Data System (ADS)
Campbell, D. Michael
The lack of preparation, participation, and equal access of students in mathematics and the science education continues to afflict America's high school system (Ratliff, 2001). Additionally, gender and ethnic status have become significant factors as females and minority subgroups such as African Americans and Hispanics continue to be underrepresented in these two subject fields. Recognizing and understanding these trends is extremely important for the future of this country. As fewer minorities and females become involved in advanced mathematics and science curriculum there will be a continued lack of minorities and females in mathematics and science careers. Additionally, this insufficient representation leads to fewer numbers of females and minorities in industry and educational leadership positions in mathematics and science to promote participation and equality in these fields. According to Brainard and Carlin (2003) as trends currently stand, these two groups will be under-represented in the fields of math and science and will continue to be denied economic and social power. Thus, a better understanding of these trends in participation in mathematics and science among these groups of students is warranted. This study is intended to accomplish four objectives. The first objective is to identify the extent to which opportunities are increasing or decreasing for students in high schools taking mathematics and science Advanced Placement exams by examining six years of student testing data from the College Board. A second objective is to identify features of high schools that relate to greater expansion in Advanced Placement test taking for females and minority groups in the areas of both math and science. A third objective is to explore whether, and to what extent, any social or educational features such as economic status, regional school and living locations, and ethnic backgrounds have enhanced or reduced Advanced Placement testing in these schools. Lastly
7 CFR 1000.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2012 CFR
2012-01-01
... advanced pricing factors. 1000.53 Section 1000.53 Agriculture Regulations of the Department of Agriculture..., component prices, and advanced pricing factors. (a) On or before the 5th day of the month, the market... administrator for each Federal milk marketing order shall announce the following prices and pricing factors...
7 CFR 1000.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2011 CFR
2011-01-01
... advanced pricing factors. 1000.53 Section 1000.53 Agriculture Regulations of the Department of Agriculture..., component prices, and advanced pricing factors. (a) On or before the 5th day of the month, the market... administrator for each Federal milk marketing order shall announce the following prices and pricing factors...
7 CFR 1000.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2010 CFR
2010-01-01
... advanced pricing factors. 1000.53 Section 1000.53 Agriculture Regulations of the Department of Agriculture..., component prices, and advanced pricing factors. (a) On or before the 5th day of the month, the market... administrator for each Federal milk marketing order shall announce the following prices and pricing factors...
7 CFR 1000.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2013 CFR
2013-01-01
... advanced pricing factors. 1000.53 Section 1000.53 Agriculture Regulations of the Department of Agriculture..., component prices, and advanced pricing factors. (a) On or before the 5th day of the month, the market... administrator for each Federal milk marketing order shall announce the following prices and pricing factors...
7 CFR 1000.53 - Announcement of class prices, component prices, and advanced pricing factors.
Code of Federal Regulations, 2014 CFR
2014-01-01
... advanced pricing factors. 1000.53 Section 1000.53 Agriculture Regulations of the Department of Agriculture..., component prices, and advanced pricing factors. (a) On or before the 5th day of the month, the market... administrator for each Federal milk marketing order shall announce the following prices and pricing factors...
ERIC Educational Resources Information Center
Zack, Laurie; Fuselier, Jenny; Graham-Squire, Adam; Lamb, Ron; O'Hara, Karen
2015-01-01
Our study compared a flipped class with a standard lecture class in four introductory courses: finite mathematics, precalculus, business calculus, and calculus 1. The flipped sections watched video lectures outside of class and spent time in class actively working on problems. The traditional sections had lectures in class and did homework outside…
ERIC Educational Resources Information Center
Poncy, Brian C.; Skinner, Christopher H.; McCallum, Elizabeth
2012-01-01
An adapted alternating treatments design was used to compare the effects of class-wide applications of Taped Problems (TP) and Cover, Copy, and Compare (CCC) procedures designed to enhance subtraction fact fluency in an intact third-grade classroom. During the TP procedure, a tape provided an auditory prompt (i.e., the problem), followed by a…
Yajima, Masahide; Asakawa, Yasuyoshi; Yamaguchi, Haruyasu
2016-01-01
[Purpose] The aim of this study was to clarify the relations of morale and physical function to the presence/absence of advanced activities of daily living. [Subjects] The subjects were 86 elderly community residents participating in health promotion classes. [Methods] A questionnaire survey on age, gender, presence/absence of advanced activities of daily living, and Philadelphia Geriatric Center Morale Scale score was conducted, in addition to assessment of fitness, consisting of measurement of height, body weight, grip and knee extensor muscle strength, functional reach, one-leg standing time, and Timed Up and Go test. Furthermore, multiple logistic regression analysis was performed with the presence/absence of advanced activities of daily living as a dependent variable. [Results] Grip strength and Timed Up and Go time were identified as variables influencing the presence/absence of advanced activities of daily living. [Conclusion] Physical function represented by grip strength and Timed Up and Go time was higher among subjects performing advanced activities of daily living. PMID:27065541
ERIC Educational Resources Information Center
Hoefnagels, Marielle H.; Rippel, Scott A.
2003-01-01
Presents a collaborative learning exercise intended to teach the unfamiliar terminology of experimental design both in biology classes and biochemistry laboratories. The exercise promotes discussion and debate, develops communication skills, and emphasizes peer review. The effectiveness of the exercise is supported by student surveys. (SOE)
Performance testing of 10 kW-class advanced batteries for electric energy storage systems in Japan
NASA Astrophysics Data System (ADS)
Futamata, M.; Higuchi, S.; Nakamura, O.; Ogino, I.; Takada, Y.; Okazaki, S.; Ashimura, S.; Takahashi, S.
1988-09-01
The results of the performance testing of 10 kW-class advanced batteries — Na-S, Zn-Cl 2, Zn-Br 2 and redox-flow type batteries — are summarized. Energy efficiency and capacity at three discharge rates are presented in addition to energy density, self-discharge rate, estimated short circuit current, etc. It was evident that the performance of the advanced batteries was adequate to achieve the project goals for electrical energy storage. Further improvements are needed in the areas of self-discharge, electric insulation, and auxiliary systems. Based on continued technical progress, there is reasonable expectation that pilot plants of 1 MW (8 MW h) will be constructed and demonstrated in the next phase of the project.
Advancing with pyrrolopyrrole cyanines: a next generation class of near-infrared fluorophores
NASA Astrophysics Data System (ADS)
Wiktorowski, S.; Fischer, G. M.; Daltrozzo, E.; Zumbusch, A.
2012-03-01
Fluorescent dyes are the basis for a broad range of modern techniques in life and material sciences. Consequently, there is a pressing need for the development of new classes of NIR fluorophores in recent years. Pyrrolopyrrole Cyanines (PPCys) are a novel class of NIR chromophores that were first presented in 2007 by Fischer and coworkers.[1] Their optical properties are marked by strong and narrowband NIR absorptions, strong NIR fluorescence and hardly any absorption in the visible range. The absorption maxima can be tuned over a broad range while high fluorescence quantum yields are maintained. PPCys are attractive candidates for labelling applications or as selective NIR absorbers. Moreover, PPCys exhibit very high photostability. Due to these outstanding photophysical properties, PPCys are heading into a promising future as NIR dyes.
Teacher Scaffolding of Academic Language in an Advanced Placement U.S. History Class
ERIC Educational Resources Information Center
Gritter, Kristine; Beers, Scott; Knaus, Robert W.
2013-01-01
This article examines teacher scaffolding of academic language in an Advanced Placement United States History (APUSH) course throughout a school year for one student who received a perfect score on the end of year APUSH exam. Data includes four months of observation of teacher instructional strategies to scaffold student writing and vignettes of…
NASA Astrophysics Data System (ADS)
Weiss, Abraham
2011-12-01
The current state-of-the-art simulation motion platforms are based on parallel manipulators known as Gough-Stewart platforms or hexapods. These have limited motion range in both translational and angular senses, and are subject to singularities. An alternative novel kinematic architecture, the Atlas platform, has been developed at Carleton University. The Atlas platform achieves six degree of freedom motion by mounting the Atlas spherical platform on top of an XYZ translation platform. The Atlas rotational stage comprises a sphere manipulated by three omnidirectional wheels. Each wheel imparts a prescribed velocity to the sphere through friction enabling it to rotate about any desired axis with unlimited angular displacement. This thesis investigates four main issues including: unified and generalized kinematics of a sphere actuated by n omnidirectional wheels; the dynamics of a sphere actuated by omnidirectional wheels; vibration induced by omnidirectional wheels on an actuated sphere; and a comparison between classes of omnidirectional wheels in the context of the Atlas platform. The kinematic model for the system was derived using a zero-slip approach yielding a basic Jacobian. The model was then generalized to include any number and type of omnidirectional wheels treating the various wheel designs as geometric classes. Results show non-negligible corrections in both magnitude and direction of the resulting angular motion of the sphere. The equations of motion for the system were obtained taking into account several non-rigid effects. The non-smooth shape of the wheels was taken as a positional input for vibration analysis. Comparison between omnidirectional wheel types was made from the standpoint of vibration and transmission efficiency, with mixed results, using a numerical integration program developed in Matlab. The program, developed with numerical simulation in mind, was then used to investigate the effects of various parameters on the behaviour of the
NASA Astrophysics Data System (ADS)
Arons-Polan, Bonnie
This study examined the effect of three schedule types on student achievement in Advanced Placement Biology classes. AP Biology test scores from students on three types of full-year schedules were analyzed to assess the impact schedule type had on student achievement. The three schedules included the block and traditional schedules, and the rotating/hybrid, a blend of the former two schedules. The results indicated the variable most closely associated with success on the AP Biology exam was the length of experience the teachers had teaching the course, regardless of schedule type. Although significant differences were seen in mean AP Biology test scores among the three schedule types, this could be explained by the relationship between instructors' experience and schedule type. Regression analysis determined the two strongest predictors of successful performance on the AP Biology exam were instructors' experience and perceived teaching style, regardless of schedule type. It appears that the economically developed suburbs, had teachers with the largest amount of experience teaching AP Biology, and these teachers reported using a direct approach to teaching, using lecture greater than 50% of the time. The results of this study also suggest when restructuring to improve student achievement, educators should examine other variables in addition to the high school schedule. Restructuring the day to allow for longer classes must be accompanied by professional staff development to allow teachers to develop new teaching methods. Most of the teachers in the survey reported using lecture a great deal of the time, regardless of schedule type. Comments from the teachers from the various schedules revealed that the ability to add student centered, inquiry based activities and labs were dependent on adequate class time. No information on whether or not the teachers were given professional development to expand their repertoire of teaching methods when the school adopted a block
ERIC Educational Resources Information Center
Clary, Joseph R.; Nery, Karen P.
This set of 20 modules was designed for use primarily to help teach and reinforce the basic mathematics skills in electronics classes. The modules are based on electronics competencies that require mathematics skills, as determined by a panel of high school electronics and mathematics teachers. Each module consists of one or two pages of basic…
Lee, Stephen R
2010-01-01
Los Alamos National Laboratory will review its Computational Physics and Applied Mathematics (CPAM) capabilities in 2010. The goals of capability reviews are to assess the quality of science, technology, and engineering (STE) performed by the capability, evaluate the integration of this capability across the Laboratory and within the scientific community, examine the relevance of this capability to the Laboratory's programs, and provide advice on the current and future directions of this capability. This is the first such review for CPAM, which has a long and unique history at the laboratory, starting from the inception of the Laboratory in 1943. The CPAM capability covers an extremely broad technical area at Los Alamos, encompassing a wide array of disciplines, research topics, and organizations. A vast array of technical disciplines and activities are included in this capability, from general numerical modeling, to coupled mUlti-physics simulations, to detailed domain science activities in mathematics, methods, and algorithms. The CPAM capability involves over 12 different technical divisions and a majority of our programmatic and scientific activities. To make this large scope tractable, the CPAM capability is broken into the following six technical 'themes.' These themes represent technical slices through the CP AM capability and collect critical core competencies of the Laboratory, each of which contributes to the capability (and each of which is divided into multiple additional elements in the detailed descriptions of the themes in subsequent sections): (1) Computational Fluid Dynamics - This theme speaks to the vast array of scientific capabilities for the simulation of fluids under shocks, low-speed flow, and turbulent conditions - which are key, historical, and fundamental strengths of the laboratory; (2) Partial Differential Equations - The technical scope of this theme is the applied mathematics and numerical solution of partial differential equations
ERIC Educational Resources Information Center
Rogness, Jonathan
2011-01-01
Advances in computer graphics have provided mathematicians with the ability to create stunning visualizations, both to gain insight and to help demonstrate the beauty of mathematics to others. As educators these tools can be particularly important as we search for ways to work with students raised with constant visual stimulation, from video games…
ERIC Educational Resources Information Center
Elam, Jeanette H.
2009-01-01
The purpose of this study was to compare the academic performance of students enrolled in coeducational instruction and single-gender instruction. Within this framework, the researcher examined class type, gender, and racial/ethnicity using the sixth grade CRCT scores of selected students in the areas of mathematics and science. The fifth-grade…
ERIC Educational Resources Information Center
Asirifi, Michael Kwabena; Mensah, Kweku Abeeku; Amoako, Joseph
2015-01-01
The purpose of this research article is to find out an assessment of different educational background of students performance in engineering mathematics and on the class of award obtained at the Higher National Diploma (HND) level at Cape Coast Polytechnic. A descriptive survey was conducted on students of the Electricals/Electronics Department…
The Advanced Neutron Source (ANS) project: A world-class research reactor facility
Thompson, P.B.; Meek, W.E.
1993-07-01
This paper provides an overview of the Advanced Neutron Source (ANS), a new research facility being designed at Oak Ridge National Laboratory. The facility is based on a 330 MW, heavy-water cooled and reflected reactor as the neutron source, with a thermal neutron flux of about 7.5{times}10{sup 19}m{sup {minus}2}{center_dot}sec{sup {minus}1}. Within the reflector region will be one hot source which will serve 2 hot neutron beam tubes, two cryogenic cold sources serving fourteen cold neutron beam tubes, two very cold beam tubes, and seven thermal neutron beam tubes. In addition there will be ten positions for materials irradiation experiments, five of them instrumented. The paper touches on the project status, safety concerns, cost estimates and scheduling, a description of the site, the reactor, and the arrangements of the facilities.
NASA Astrophysics Data System (ADS)
Bouchaud, Jean-Philippe; Sornette, Didier
1994-06-01
The ability to price risks and devise optimal investment strategies in thé présence of an uncertain "random" market is thé cornerstone of modern finance theory. We first consider thé simplest such problem of a so-called "European call option" initially solved by Black and Scholes using Ito stochastic calculus for markets modelled by a log-Brownien stochastic process. A simple and powerful formalism is presented which allows us to generalize thé analysis to a large class of stochastic processes, such as ARCH, jump or Lévy processes. We also address thé case of correlated Gaussian processes, which is shown to be a good description of three différent market indices (MATIF, CAC40, FTSE100). Our main result is thé introduction of thé concept of an optimal strategy in the sense of (functional) minimization of the risk with respect to the portfolio. If the risk may be made to vanish for particular continuous uncorrelated 'quasiGaussian' stochastic processes (including Black and Scholes model), this is no longer the case for more general stochastic processes. The value of the residual risk is obtained and suggests the concept of risk-corrected option prices. In the presence of very large deviations such as in Lévy processes, new criteria for rational fixing of the option prices are discussed. We also apply our method to other types of options, `Asian', `American', and discuss new possibilities (`doubledecker'...). The inclusion of transaction costs leads to the appearance of a natural characteristic trading time scale. L'aptitude à quantifier le coût du risque et à définir une stratégie optimale de gestion de portefeuille dans un marché aléatoire constitue la base de la théorie moderne de la finance. Nous considérons d'abord le problème le plus simple de ce type, à savoir celui de l'option d'achat `européenne', qui a été résolu par Black et Scholes à l'aide du calcul stochastique d'Ito appliqué aux marchés modélisés par un processus Log
Design of a family of new advanced airfoils for low wind class turbines
NASA Astrophysics Data System (ADS)
Grasso, Francesco
2014-12-01
In order to maximize the ratio of energy capture and reduce the cost of energy, the selection of the airfoils to be used along the blade plays a crucial role. Despite the general usage of existing airfoils, more and more, families of airfoils specially tailored for specific applications are developed. The present research is focused on the design of a new family of airfoils to be used for the blade of one megawatt wind turbine working in low wind conditions. A hybrid optimization scheme has been implemented, combining together genetic and gradient based algorithms. Large part of the work is dedicated to present and discuss the requirements that needed to be satisfied in order to have a consistent family of geometries with high efficiency, high lift and good structural characteristics. For each airfoil, these characteristics are presented and compared to the ones of existing airfoils. Finally, the aerodynamic design of a new blade for low wind class turbine is illustrated and compared to a reference shape developed by using existing geometries. Due to higher lift performance, the results show a sensitive saving in chords, wetted area and so in loads in idling position.
ERIC Educational Resources Information Center
Shores, Melanie L.; Shannon, David M.; Smith, Tommy G.
2010-01-01
A total of 761 students (58.1% female) from selected fifth- and sixth-grade mathematics classrooms in Alabama were examined to investigate the relationships between individual learner variables (gender, ethnicity, socioeconomic status [SES]) and mathematics performance. Specifically, this portion of the study examined individual learner variables…
Can an 86-year-old woman with advanced lung disease be a world class athlete?
Guenette, Jordan A; Diane Lougheed, M; Webb, Katherine A; O'Donnell, Denis E
2012-04-30
We describe the case of an 86-year-old woman with advanced obstructive lung disease (forced expiratory volume in 1 s/forced vital capacity ratio (FEV(1)/FVC)=34%) who remains capable of superior athletic performance. Detailed pulmonary function testing was performed to characterize this patient's baseline respiratory impairment. An incremental symptom limited cycle exercise test was performed to characterize her sensory, ventilatory, cardiovascular and respiratory mechanical responses to exercise. Despite significant respiratory mechanical constraints, her peak cycle work rate and oxygen uptake were 177 and 175% predicted, respectively, and she achieved this while experiencing only moderate exertional dyspnea. She holds numerous world and national masters swim records despite her substantial objective respiratory impairment and continues to compete and set records to this day. We propose that lifelong participation in rigorous endurance training resulted in desensitization to dyspnea and has led to important cardiorespiratory adaptations that may have counterbalanced the known negative effects of obstructive lung disease on exercise performance and dyspnea. PMID:22446561
ERIC Educational Resources Information Center
Ginsburg, Alan; Leinwand, Steven; Anstrom, Terry; Pollock, Elizabeth
2005-01-01
This exploratory study compares key features of the Singapore and U.S. mathematics systems in the primary grades, when students need to build a strong mathematics foundation. It identifies major differences between the mathematics frameworks, textbooks, assessments, and teachers in Singapore and the United States. It also presents initial results…
Mentoring At-Risk Students in a Remedial Mathematics Course
ERIC Educational Resources Information Center
Khazanov, Leonid
2011-01-01
A peer mentoring program has been implemented to support a group of at-risk students enrolled in two sections of an elementary algebra course at an urban community college. Peer mentors were recruited from advanced mathematics classes and trained to provide individualized tutoring and mentoring support to at-risk students. The results show that…
Negotiation of Mathematical Meaning and Learning Mathematics.
ERIC Educational Resources Information Center
Voigt, Jorg
1994-01-01
Presents a case study of a first-grade class and their teacher who were observed as they ascribed mathematical meanings of numbers and of numerical operations to empirical phenomena. Differences in ascriptions led to negotiation of meanings. Discusses some indirect relations between social interaction and mathematics learning. (Contains 60…
ERIC Educational Resources Information Center
Dunlap, Celeste Elizabeth
Much research identifies a gender gap in mathematics and some research points to single-gender mathematics classrooms as a solution to the mathematics gender divide. A 7-week study was conducted in which 5th grade students (N=50) were organized into two mathematics classes. The goal was to examine whether single-gender mathematics classes had an…
2002-01-01
A recently released National Research Council (NRC) report, Learning and Understanding: Improving Advanced Study of Mathematics and Science in U.S. High Schools, evaluated and recommended changes in the Advanced Placement (AP), International Baccalaureate (IB), and other advanced secondary school science programs. As part of this study, discipline-specific panels were formed to evaluate advanced programs in biology, chemistry, physics, and mathematics. Among the conclusions of the Content Panel for Biology were that AP courses in particular suffer from inadequate quality control as well as excessive pressure to fulfill their advanced placement function, which encourages teachers to attempt coverage of all areas of biology and emphasize memorization of facts rather than in-depth understanding. In this essay, the Panel's principal findings are discussed, with an emphasis on its recommendation that colleges and universities should be strongly discouraged from using performance on either the AP examination or the IB examination as the sole basis for automatic placement out of required introductory courses for biology majors and distribution requirements for nonmajors. PMID:12669097
A new class of solid oxide metal-air redox batteries for advanced stationary energy storage
NASA Astrophysics Data System (ADS)
Zhao, Xuan
Cost-effective and large-scale energy storage technologies are a key enabler of grid modernization. Among energy storage technologies currently being researched, developed and deployed, rechargeable batteries are unique and important that can offer a myriad of advantages over the conventional large scale siting- and geography- constrained pumped-hydro and compressed-air energy storage systems. However, current rechargeable batteries still need many breakthroughs in material optimization and system design to become commercially viable for stationary energy storage. This PhD research project investigates the energy storage characteristics of a new class of rechargeable solid oxide metal-air redox batteries (SOMARBs) that combines a regenerative solid oxide fuel cell (RSOFC) and hydrogen chemical-looping component. The RSOFC serves as the "electrical functioning unit", alternating between the fuel cell and electrolysis mode to realize discharge and charge cycles, respectively, while the hydrogen chemical-looping component functions as an energy storage unit (ESU), performing electrical-chemical energy conversion in situ via a H2/H2O-mediated metal/metal oxide redox reaction. One of the distinctive features of the new battery from conventional storage batteries is the ESU that is physically separated from the electrodes of RSOFC, allowing it to freely expand and contract without impacting the mechanical integrity of the entire battery structure. This feature also allows an easy switch in the chemistry of this battery. The materials selection for ESU is critical to energy capacity, round-trip efficiency and cost effectiveness of the new battery. Me-MeOx redox couples with favorable thermodynamics and kinetics are highly preferable. The preliminary theoretical analysis suggests that Fe-based redox couples can be a promising candidate for operating at both high and low temperatures. Therefore, the Fe-based redox-couple systems have been selected as the baseline for this
Hickman, T. Scott; Justice, James J.; Egg, Rebecca
2001-08-07
The Oxy operated Class 2 Project at West Welch Project is designed to demonstrate how the use of advanced technology can improve the economics of miscible CO2 injection projects in lower quality Shallow Shelf Carbonate reservoirs. The research and design phase (Budget Period 1) primarily involved advanced reservoir demonstration characterization. The current demonstration phase (Budget Period 2) is the implementation of the reservoir management plan for an optimum miscible CO2 flood design based on the reservoir characterization.
ERIC Educational Resources Information Center
Brown, Kenneth E.; Johnson, Philip G.
1953-01-01
The Cooperative Committee on the Teaching of Science and Mathematics of the American Association for the Advancement of Science that participated in planning for and publishing this bulletin is composed of representatives of seventeen national scientific and mathematical societies including representatives from the associated teaching…
Mathematics in Vocational Education.
ERIC Educational Resources Information Center
Oregon State Univ., Corvallis. Vocational-Technical Education Dept.
This handbook was developed to help the vocational teacher aid students in solving mathematical problems in vocational education classes. Most of the examples in the handbook were derived from metal-working and industrial mechanics classes; however, the procedures explained through them will work in any vocational class. The handbook is divided…
Ma, Ke; Xu, Yiming; Wang, Chenchen; Li, Nan; Li, Kexue; Zhang, Yan; Li, Xiaoyu; Yang, Qing; Zhang, Hanwen; Zhu, Xudong; Bai, Hui; Ben, Jingjing; Ding, Qingqing; Li, Keran; Jiang, Qin; Xu, Yong; Chen, Qi
2014-12-15
In response to hyperglycemia in patients with diabetes, many signaling pathways contribute to the pathogenesis of diabetic complications, including diabetic retinopathy (DR). Excessive production of inflammatory mediators plays an important role in this process. Amadori-glycated albumin, one of the major forms of advanced glycated end-products, has been implicated in DR by inducing inflammatory responses in microglia/macrophages. Our goal was to delineate the potential cross talk between class A scavenger receptor (SR-A) and the receptor for advanced glycated end-product (RAGE) in the context of DR. We show here that SR-A ablation caused an exacerbated form of DR in streptozotocin-injected C57BL/6J mice as evidenced by fundus imaging and electroretinography. Immunohistochemical staining and RT-PCR assay indicated that there was augmented activation of proinflammatory macrophages with upregulated synthesis of proinflammatory mediators in the retina in Sr-a(-/-) mice. Overexpression of SR-A suppressed RAGE-induced mitogen-activated protein kinase (MAPK) signaling, whereas RAGE activation in macrophages favored a proinflammatory (M1) phenotype in the absence of SR-A. Mechanistic analysis on bone marrow-derived macrophages and HEK293 cell line revealed that SR-A interacted with and inhibited the phosphorylation of mitogen-activated protein kinase kinase 7, the major kinase in the RAGE-MAPK-NF-κB signaling, thereby leading to diminished secretion of proinflammatory cytokines. Our findings suggest that the antagonism between SR-A and RAGE contributes to the pathogenesis of DR by nurturing a disease-prone macrophage phenotype. Therefore, specific agonist that boosts SR-A signaling could potentially provide benefits in the prevention and/or intervention of DR. PMID:25352436
Glimm, J.
2009-10-14
Progress for the past decade or so has been extraordinary. The solution of Fermat's Last Theorem [11] and of the Poincare Conjecture [1] have resolved two of the most outstanding challenges to mathematics. For both cases, deep and advanced theories and whole subfields of mathematics came into play and were developed further as part of the solutions. And still the future is wide open. Six of the original seven problems from the Clay Foundation challenge remain open, the 23 DARPA challenge problems are open. Entire new branches of mathematics have been developed, including financial mathematics and the connection between geometry and string theory, proposed to solve the problems of quantized gravity. New solutions of the Einstein equations, inspired by shock wave theory, suggest a cosmology model which fits accelerating expansion of the universe possibly eliminating assumptions of 'dark matter'. Intellectual challenges and opportunities for mathematics are greater than ever. The role of mathematics in society continues to grow; with this growth comes new opportunities and some growing pains; each will be analyzed here. We see a broadening of the intellectual and professional opportunities and responsibilities for mathematicians. These trends are also occuring across all of science. The response can be at the level of the professional societies, which can work to deepen their interactions, not only within the mathematical sciences, but also with other scientific societies. At a deeper level, the choices to be made will come from individual mathematicians. Here, of course, the individual choices will be varied, and we argue for respect and support for this diversity of responses. In such a manner, we hope to preserve the best of the present while welcoming the best of the new.
Bedenić, Branka; Sardelić, Sanda; Luxner, Josefa; Bošnjak, Zrinka; Varda-Brkić, Dijana; Lukić-Grlić, Amarela; Mareković, Ivana; Frančula-Zaninović, Sonja; Krilanović, Marija; Šijak, Dorotea; Grisold, Andrea; Zarfel, Gernot
2016-09-01
Carbapenemases involved in acquired carbapenem resistance in Enterobacteriaceae belong to Ambler class A serin β-lactamases, class B metallo-β-lactamases (MBL) or class D OXA-48-like β-lactamases. The aim of the present study was to analyse the molecular epidemiology and the mechanisms and routes of spread of class B and class D carbapenemases in Croatia. In total 68 isolates were analyzed. Antibiotic susceptibility was determined by broth microdilution method. PCR was used to detect antibiotic-resistance genes. Genotyping was performed by rep-PCR and MLST. Sixty-five isolates were found to harbour VIM-1 carbapenemase, seven of which were positive also for NDM-1, while two strains harboured only NDM-1. OXA-48 was detected in three isolates, two of which coproduced VIM-1. Thirty-six strains possessed additional CTX-M-15 β-lactamase whereas 64 were positive for TEM-1. CMY was found in 18 Citrobacter freundii isolates and DHA-1 in one Enterobacter cloacae isolate. Four different plasmid-incompatibility groups were found: A/C, L/M, N and FIIAs. Unlike C. freundii and E. cloacae, Klebsiella pneumoniae showed high diversity of rep-PCR patterns. E. cloacae and C. freundii predominantly belonged to one large clone which was allocated to ST105 and ST24, respectively. Three different types of carbapenemases were identified showing the complexity of CRE in Croatia. PMID:27174090
A Mathematics Software Database Update.
ERIC Educational Resources Information Center
Cunningham, R. S.; Smith, David A.
1987-01-01
Contains an update of an earlier listing of software for mathematics instruction at the college level. Topics are: advanced mathematics, algebra, calculus, differential equations, discrete mathematics, equation solving, general mathematics, geometry, linear and matrix algebra, logic, statistics and probability, and trigonometry. (PK)
ERIC Educational Resources Information Center
Jarman, Ron
This book aims to present helpful, practical ideas and suggestions for mathematics teaching. Focus is on how teaching can be developed in a Rudolf Steiner (Waldorf) School and includes treatment of mathematical topics applicable to the 7-14 age group. Suggestions for curriculum and examples for children to work on are presented with a very wide…
ERIC Educational Resources Information Center
Jackson, Kara; Garrison, Anne; Wilson, Jonee; Gibbons, Lynsey; Shahan, Emily
2013-01-01
This article specifies how the setup, or introduction, of cognitively demanding tasks is a crucial phase of middle-grades mathematics instruction. The authors report on an empirical study of 165 middle-grades mathematics teachers' instruction that focused on how they introduced tasks and the relationship between how they introduced tasks and…
ERIC Educational Resources Information Center
Barmao, Anne C.; Changeiywo, Johnson M.; Githua, Bernard N.
2015-01-01
The skills acquired in mathematics provide a country with a human resource that is highly educated and able to tackle most of the country's social economic problems. However, the performance of students at the KCSE mathematics examinations in Kenya has been dismal for many years. In addition, majority of the girls in particular have been…
ERIC Educational Resources Information Center
Rumsey, Chepina Witkowski
2012-01-01
The goals for this study were to investigate how fourth-grade students developed an understanding of the arithmetic properties when instruction promoted mathematical argumentation and to identify the characteristics of students' arguments. Using the emergent perspective as an overarching theoretical perspective helped distinguish between two…
NASA Technical Reports Server (NTRS)
Desoer, C. A.; Polak, E.; Zadeh, L. A.
1974-01-01
A series of research projects is briefly summarized which includes investigations in the following areas: (1) mathematical programming problems for large system and infinite-dimensional spaces, (2) bounded-input bounded-output stability, (3) non-parametric approximations, and (4) differential games. A list of reports and papers which were published over the ten year period of research is included.
ERIC Educational Resources Information Center
National Science Foundation, 2006
2006-01-01
This booklet presents an overview of the Math Science Partnership program (MSP) at the National Science Foundation (NSF). This program responds to a growing national concern--the educational performance of U.S. children in mathematics and science. Through the MSP, NSF awards competitive, merit-based grants to teams composed of institutions of…
Experimenting with Mathematical Biology
ERIC Educational Resources Information Center
Sanft, Rebecca; Walter, Anne
2016-01-01
St. Olaf College recently added a Mathematical Biology concentration to its curriculum. The core course, Mathematics of Biology, was redesigned to include a wet laboratory. The lab classes required students to collect data and implement the essential modeling techniques of formulation, implementation, validation, and analysis. The four labs…
ERIC Educational Resources Information Center
Dodd, Jennifer
2010-01-01
In this article, the author reports on the findings of her research on what her Year 10 students consider to be "mathematical." The class contains thirteen students who will all sit the higher tier IGCSE next year. The author found out that the students considered things she told them to have a higher mathematical status than work they did…
Teaching Mathematics Using Steplets
ERIC Educational Resources Information Center
Bringslid, Odd; Norstein, Anne
2008-01-01
This article evaluates online mathematical content used for teaching mathematics in engineering classes and in distance education for teacher training students. In the EU projects Xmath and dMath online computer algebra modules (Steplets) for undergraduate students assembled in the Xmath eBook have been designed. Two questionnaires, a compulsory…
ERIC Educational Resources Information Center
Oldfield, Christine
1996-01-01
Describes aspects of learning the language of mathematics including vocabulary and grammar, the origins of the vocabulary, the pronunciation problem, and translation of English phrases and sentences into mathematical language accompanied by conceptual understanding of the process being described. Gives suggestions for teachers in class and…
ERIC Educational Resources Information Center
Bruce, Chrystal D.
2013-01-01
The initial interaction among student, instructor, and content on the first day of class is critical in setting the stage for the remainder of the semester. While many students would like to ease into the semester, experienced faculty realize that the first day of class provides a one-time opportunity to shape the students' first impression…
ERIC Educational Resources Information Center
Pustjens, Heidi; Van de gaer, Eva; Van Damme, Jan; Onghena, Patrick; Van Landeghem, Georges
2007-01-01
A considerable body of previous research has demonstrated that differences between schools and classes have an impact on students' learning and acquisition of skills. It is not yet clear, however, whether the effects persist in the longer term. The present study examines the effect of primary schools and classes on language and mathematics…
ERIC Educational Resources Information Center
Perels, Franziska; Dignath, Charlotte; Schmitz, Bernhard
2009-01-01
After the effectiveness of self-regulation training outside school was demonstrated, a self-regulation intervention was developed to foster the learning achievement in regular math classes. Based on the theoretical framework of self-regulated learning, self-regulation training was integrated into a math class unit. The evaluation of the…
ERIC Educational Resources Information Center
Rowlett, Joel Everett
2013-01-01
This case study examined the beliefs of African American males on the psychosocial and pedagogical factors contributing to the underrepresentation of African American males in advanced high school math courses. Six 11th grade African American male juniors from a large, comprehensive, Southeastern high school served as individual cases. Within- and…
Spector, Matthew E.; Chinn, Steven B.; Bellile, Emily; Gallagher, K. Kelly; Kang, Stephen Y.; Moyer, Jeffrey S.; Prince, Mark E.; Wolf, Gregory T.; Bradford, Carol R.; McHugh, Jonathan B.; Carey, Thomas E.; Worden, Francis P.; Eisbruch, Avraham; Ibrahim, Mohannad; Chepeha, Douglas B.
2016-01-01
Importance Understanding the drainage patterns to the retropharyngeal nodes is an important consideration in oropharyngeal squamous cell carcinoma (OPSCC) because treatment of these nodes is related to increased morbidity. Prediction of these drainage patterns could not only help minimize treatment morbidity, but could also prevent failures in at-risk patients, as de-escalation trials are underway for this disease. Objective To evaluate the prevalence of pathologic retropharyngeal adenopathy (RPA) in OPSCC relative to involvement of the oropharyngeal subsite, number of neck nodes, T classification and N classification. Design Retrospective review from 2003–2010 Setting Academic Referral Center Participants 205 previously untreated, advanced stage (III, IV), pathologically confirmed patients with OPSCC Exposure: Concurrent chemoradiation Main Outcome Measures Radiologic evidence of pathologic RPA was tabulated and related to involvement of the oropharyngeal subsite, number of neck nodes, T classification and N classification. Results Pathologic RPA was identified in 18% of patients. There were pathologic retropharyngeal lymph nodes in 12/89 (13%) base of tongue cancers, 24/109 (22%) tonsil cancers, and 1/7 (14%) other oropharyngeal subsite cancers. Increasing prevalence of RPA was positively correlated with closer proximity to the posterior tonsillar pillar. A multivariate predictive regression model using the oropharyngeal subsite, involvement of the posterior tonsillar pillar, number of metastatic nodes, T classification, and N classification, showed that the number of metastatic nodes was statistically significant with an odds ratio of 1.436 (p=0.0001, 95% confidence interval: 1.203 – 1.714). Conclusions and Relevance The prevalence of pathologic RPA in this cohort was 18% and patients with multiple nodes had the highest risk for pathologic RPA, followed by involvement of the posterior tonsillar pillar. However, this data suggests that there is no clear
ERIC Educational Resources Information Center
Rodgers, Lindsay D.
2011-01-01
The following paper examined the effects of a new method of teaching for remedial mathematics, named the hybrid model of instruction. Due to increasing importance of high stakes testing, the study sought to determine if this method of instruction, that blends traditional teaching and problem-based learning, had different learning effects on…
ERIC Educational Resources Information Center
BASSETT, ROBERT D.; COOLEY, WILLIAM W.
THIS STUDY WAS TO EVALUATE A SUMMER PROGRAM IN SCIENCE AND MATHEMATICS FOR 60 PROMISING SCIENCE STUDENTS, AND TO DETERMINE THE EFFECTS OF SUCH A PROGRAM ON THE BEHAVIOR OF STUDENTS IN CLASSES DURING THE ENSUING YEAR AND ON THEIR FUTURE CAREER DECISIONS. THE FIRST 2 OF THE 10 WEEKS OF THIS PROGRAM THE STUDENTS WERE GIVEN ADVANCED INSTRUCTION BY…
Annual Perspectives in Mathematics Education 2016: Mathematical Modeling and Modeling Mathematics
ERIC Educational Resources Information Center
Hirsch, Christian R., Ed.; McDuffie, Amy Roth, Ed.
2016-01-01
Mathematical modeling plays an increasingly important role both in real-life applications--in engineering, business, the social sciences, climate study, advanced design, and more--and within mathematics education itself. This 2016 volume of "Annual Perspectives in Mathematics Education" ("APME") focuses on this key topic from a…
ERIC Educational Resources Information Center
Ananyeva, Maria
2014-01-01
This paper focuses on "blogfolios", online interactive blog-based portfolios, developed by students for class projects in Electronic Literacy. Blogfolios may contain interactive images, podcasts, and web-log discussions on a variety of researched academic topics. The impact of academic blogfolios on the second language learner's…
Dahari, Harel; Layden-Almer, Jennifer E.; Kallwitz, Eric; Ribeiro, Ruy M.; Cotler, Scott J.; Layden, Thomas J.; Perelson, Alan S.
2010-01-01
Background & Aims Patients with baseline hepatitis C virus-RNA levels (bHCV-RNA) >6 log IU/ml or cirrhosis have a reduced probability of a sustained-virological response (SVR). We examined the relationship between bHCV-RNA, cirrhosis and SVR using a mathematical model that includes the critical-drug efficacy (εc; the efficacy required for a drug to clear HCV), the infection-rate constant (β) and the percentage of HCV-infected hepatocytes (π). Methods The relationship between baseline factors and SVR was evaluated in 1,000 in silico HCV-infected patients, generated by randomly assignment of realistic host and viral kinetic parameters. Model predictions were compared with clinical data from 170 non-cirrhotic and 75 cirrhotic patients. Results The ranges chosen for β and the viral production rate (p) resulted in bHCV-RNA levels that were in agreement with the distribution observed in US patients. Using these β and p values, higher bHCV-RNA levels led to higher εc, resulting in lower SVR rates. Alternatively, higher β values resulted in lower bHCV-RNA levels but higher π and εc, predicting lower rates of SVR. Cirrhotic patients had lower bHCV-RNA levels than non-cirrhotic patients (p=0.013) and more had bHCV-RNA levels <6 log IU/ml (p<0.001). Even cirrhotic patients with lower bHCV-RNA levels had lower SVR rates. An increase in β could explain the results observed in cirrhotic patients. Conclusions Our model predicts that higher bHCV-RNA levels lead to higher εc, reducing the chance of achieving SVR; cirrhotic patients have lower SVR rates because of large π values, caused by increased rates of hepatocyte infection. PMID:19208338
Theoretical Explanations in Mathematical Physics
NASA Astrophysics Data System (ADS)
Rivadulla, Andrés
Many physicists wonder at the usefulness of mathematics in physics. According Madrid to Einstein mathematics is admirably appropriate to the objects of reality. Wigner asserts that mathematics plays an unreasonable important role in physics. James Jeans affirms that God is a mathematician, and that the first aim of physics is to discover the laws of nature, which are written in mathematical language. Dirac suggests that God may have used very advanced mathematics in constructing the universe. And Barrow adheres himself to Wigner's claim about the unreasonable effectiveness of mathematics for the workings of the physical world.
ERIC Educational Resources Information Center
Fagginger Auer, Marije F.; Hickendorff, Marian; Van Putten, Cornelis M.; Béguin, Anton A.; Heiser, Willem J.
2016-01-01
A first application of multilevel latent class analysis (MLCA) to educational large-scale assessment data is demonstrated. This statistical technique addresses several of the challenges that assessment data offers. Importantly, MLCA allows modeling of the often ignored teacher effects and of the joint influence of teacher and student variables.…
Fernández-Kelly, Patricia
2014-01-01
In this paper I move beyond current understandings of family- and school-related dynamics that explain the educational and occupational success of low-income immigrant children to investigate the role of cultural capital acquired in the country of origin. Class-related forms of knowledge acquired prior to migration can become invaluable assets in areas of destination through the realization of what Pierre Boutdieu calls habitus, that is, a series of embodied predispositions deployed by individuals in their pursuit of set objectives. Although the concept has attracted prolonged attention, the mechanisms by which the habitus is fulfilled remain unspecified. Here, I propose and examine three of those mechanisms: (a) cognitive correspondence, (b) positive emulation, and (c) active recollection. My study shows that class-related resources, like education, self definition, and remembrance of nation and ancestry play an important function, shaping youthful expectations and behaviors, and protecting the children of low-income immigrants from downward mobility. PMID:25431497
ERIC Educational Resources Information Center
Peretz, Arna S.
1988-01-01
Describes a student-centered reading comprehension course for advanced English-as-a-Foreign-Language students of science and technology. In the course, student interest in and knowledge of content-area subjects are used to create: (1) motivation to read; and (2) an authentic task to accomplish (the preparation and presentation of an oral report).…
ERIC Educational Resources Information Center
Snyder, Scott
2013-01-01
This study investigated the lived experiences of first-generation college students and the perceived influence of taking high school Advanced Placement (AP) courses on their college education. The following research questions were addressed: (a) what motivated students to consider going to college, (b) what was their experience in taking AP…
Implementing the Professional Standards for Teaching Mathematics: Beyond the Classroom.
ERIC Educational Resources Information Center
Vacc, Nancy Nesbitt; And Others
1995-01-01
Describes an activity that combines a first-grade class, a fifth-grade class, measurement activities, and gorillas in a zoo to extend the mathematics learning environment and include mathematical connections, problem solving, and communications. (MKR)
City of Long Beach; Tidelands Oil Production Company; University of Southern California; David K. Davies and Associates
2002-09-30
The objective of this project was to increase the recoverable heavy oil reserves within sections of the Wilmington Oil Field, near Long Beach, California through the testing and application of advanced reservoir characterization and thermal production technologies. It was hoped that the successful application of these technologies would result in their implementation throughout the Wilmington Field and, through technology transfer, will be extended to increase the recoverable oil reserves in other slope and basin clastic (SBC) reservoirs.
City of Long Beach; Tidelands Oil Production Company; University of Southern California; David K. Davies and Associates
2002-09-30
The objective of this project was to increase the recoverable heavy oil reserves within sections of the Wilmington Oil Field, near Long Beach, California through the testing and application of advanced reservoir characterization and thermal production technologies. The successful application of these technologies would result in expanding their implementation throughout the Wilmington Field and, through technology transfer, to other slope and basin clastic (SBC) reservoirs.
Driven by History: Mathematics Education Reform
ERIC Educational Resources Information Center
Permuth, Steve; Dalzell, Nicole
2013-01-01
The advancement of modern societies is fueled by mathematics, and mathematics education provides the foundation upon which future scientists and engineers will build. Society dictates how mathematics will be taught through the development and implementation of mathematics standards. When examining the progression of these standards, it is…
Students' Interpretations of Mathematical Statements Involving Quantification
ERIC Educational Resources Information Center
Piatek-Jimenez, Katrina
2010-01-01
Mathematical statements involving both universal and existential quantifiers occur frequently in advanced mathematics. Despite their prevalence, mathematics students often have difficulties interpreting and proving quantified statements. Through task-based interviews, this study took a qualitative look at undergraduate mathematics students'…
ERIC Educational Resources Information Center
Reys, Robert; Reys, Rustin
2011-01-01
In their dual roles as mathematics teachers and tennis coaches, the authors have worked with tennis players who have never thought about how a knowledge of mathematics might help them become "better" tennis players. They have also worked with many mathematics students who have never considered how much mathematics is associated with tennis. This…
Ward-Smith, A J
1985-01-01
Following a survey of existing mathematical models of running, a new analysis is developed, based on the first law of thermodynamics. The method properly accounts for each term in the energy balance, and avoids the use of mechanical efficiency factors. A relationship is derived between race distance and the time taken to run that distance. An excellent correlation of results from recent Olympic Games is established for events over distances from 100 m to 10,000 m. The velocity-time relationship for a sprinter running 100 m at maximum available power is obtained by numerical integration of the power equation. It is shown that the peak velocity is achieved in the middle stages of the race, a result which is consistent with practice, but which previous calculations based on Newton's laws have failed to predict. Further applications of the analysis are indicated. PMID:4008504
NASA Astrophysics Data System (ADS)
Elam, Jeanette H.
The purpose of this study was to compare the academic performance of students enrolled in coeducational instruction and single-gender instruction. Within this framework, the researcher examined class type, gender, and racial/ethnicity using the sixth grade CRCT scores of selected students in the areas of mathematics and science. The fifth-grade mathematics and science scores for the same population were used to control for prior knowledge. This study examined the academic achievement of students based on class type, gender, and racial/ethnicity in relation to academic achievement. The study included the CRCT scores for mathematics and science of 6th-grade students at the middle school level who were tested during the 2007--2008 school year. Many studies conducted in the past have stressed females performed better in mathematics and science, while others have stated males performed better in the same areas. Yet, other studies have found conflicting results. A large Australian study (1996), compared the academic performance of students at single-gender and coeducational schools. The conclusion of this study indicated that both males and females who were educated in single-gender classrooms scored significantly higher than did males and females in coeducational classes. A study conducted by Graham Able (2003) documented superior academic performance of students in single-gender schools, after controlling for socioeconomic class and other variables. Able's most significant finding was that the advantage of single-gender schooling was greater for males in terms of academic results than for females. This directly contradicted the educational myth that males performed better in classrooms if females were present. The sample in this study consisted of CRCT scores for 304 sixth-grade students from four different middle schools. Due to the racial composition of the sample, the study only focused on black and white students. School 1 and School 2 involved single
Handwritten mathematical symbols dataset
Chajri, Yassine; Bouikhalene, Belaid
2016-01-01
Due to the technological advances in recent years, paper scientific documents are used less and less. Thus, the trend in the scientific community to use digital documents has increased considerably. Among these documents, there are scientific documents and more specifically mathematics documents. In this context, we present our own dataset of handwritten mathematical symbols composed of 10,379 images. This dataset gathers Arabic characters, Latin characters, Arabic numerals, Latin numerals, arithmetic operators, set-symbols, comparison symbols, delimiters, etc. PMID:27006975
Handwritten mathematical symbols dataset.
Chajri, Yassine; Bouikhalene, Belaid
2016-06-01
Due to the technological advances in recent years, paper scientific documents are used less and less. Thus, the trend in the scientific community to use digital documents has increased considerably. Among these documents, there are scientific documents and more specifically mathematics documents. In this context, we present our own dataset of handwritten mathematical symbols composed of 10,379 images. This dataset gathers Arabic characters, Latin characters, Arabic numerals, Latin numerals, arithmetic operators, set-symbols, comparison symbols, delimiters, etc. PMID:27006975
Astronomy and Mathematics Education
NASA Astrophysics Data System (ADS)
Ros, Rosa M.
There are many European countries where Astronomy does not appear as a specific course on the secondary school. In these cases Astronomy content can be introduced by means of other subjects. There are some astronomical topics within the subject of Physics but this talk concerns introducing Astronomy in Mathematics classes. Teaching Astronomy through Mathematics would result in more exposure than through Physics as Mathematics is more prevalent in the curriculum. Generally it is not easy to motivate students in Mathematics but they are motivated to find out more about the universe and Astronomy current events than appears in the media. This situation can be an excellent introduction to several mathematics topics. The teachers in secondary and high school can use this idea in order to present more attractive mathematics courses. In particular some different examples will be offered regarding * Angles and spherical coordinates considering star traces * Logarithms and visual magnitudes * Plane trigonometry related orbital movements * Spherical trigonometry in connection with ecliptic obliquity * Conic curves related to sundial at several latitudes Some students do not enjoy studying Mathematics but they can be attracted by practical situations using Applied Mathematics: Astronomy is always very attractive to teenagers.
A Read-Aloud for Mathematics Classrooms.
ERIC Educational Resources Information Center
Richardson, Judy S.
1994-01-01
Presents an excerpt from Katherine Neville's best-selling novel "The Eight," and discusses how the excerpt could be used in a mathematics class. Includes possible class activities and reading and writing assignments. (SR)
ERIC Educational Resources Information Center
Mura, Roberta; And Others
In order to advance our understanding of the mechanisms through which women come to be underrepresented in mathematics and science, factors associated with the academic choices of students in three grade ll classes were studied. Information was gathered through questionnaires, interviews with students and with their mathematics teachers, classroom…
Students' Mathematical Modeling of Motion
ERIC Educational Resources Information Center
Marshall, Jill A.; Carrejo, David J.
2008-01-01
We present results of an investigation of university students' development of mathematical models of motion in a physical science course for preservice teachers and graduate students in science and mathematics education. Although some students were familiar with the standard concepts of position, velocity, and acceleration from physics classes,…
ERIC Educational Resources Information Center
New York City Board of Education, Brooklyn, NY. Bureau of Curriculum Development.
This curriculum bulletin is one of a planned series of bulletins designed to meet the needs of teachers and supervisors who are working to improve the achievement level of mathematics. The material has been planned to help teachers meet the diverse mathematical needs of the children in fifth-grade classes. In addition to the emphasis that is…
Teacher Flexibility in Mathematical Discussion
ERIC Educational Resources Information Center
Leikin, Roza; Dinur, Sariga
2007-01-01
The significance of discussion in mathematics classes has been prominently debated in the research literature. Different studies have stressed the importance of teacher flexibility in orchestrating the discussion. We introduce an operational definition of teacher flexibility. In a case study with one secondary-school mathematics teacher, we…
ERIC Educational Resources Information Center
Popelka, Susan R.
2011-01-01
Tiny prisms in reflective road signs and safety vests have interesting geometrical properties that can be discussed at any level of high school mathematics. At the beginning of the school year, the author teaches a unit on these reflective materials in her precalculus class so that students can review and strengthen their geometry and trigonometry…
Correlating Mathematics and Science
ERIC Educational Resources Information Center
Mireles, Selena Vasquez
2009-01-01
The change from students learning all subjects together in a one-room schoolhouse to learning in classes separated by subject and grade resulted in distinct disciplines such as social studies, mathematics, science, and English. What was lost was the unified, holistic curriculum that a one-room setting required. Since students move from…
Mathematical Intrusions in Literatures
ERIC Educational Resources Information Center
Modica, Erasmo
2011-01-01
This article describes an activity that can be carried out in one of the final classes of Italian secondary schools. The aim of the activity is to stimulate pupil curiosity, demonstrating that Mathematics is not a barren subject and allowing the students, according to an interdisciplinary point of view, to investigate some literary works and the…
Mathematics and Mobile Learning
ERIC Educational Resources Information Center
White, Tobin; Martin, Lee
2014-01-01
This paper argues for an approach to mobile learning that leverages students' informal digital practices as resources for designing mathematics classrooms activities. We briefly describe two exploratory designs along these lines, one featuring the use of photos taken by students outside class and the other centered on their recording and…
ERIC Educational Resources Information Center
Leutzinger, Larry, Ed.
This book contains articles that help to further the process of reform in the middle grades, recognizing that the knowledge acquired during these years greatly affects how well the secondary school curriculum will attain its goals. Critical issues facing middle grade classes in particular and all mathematics classrooms in general are discussed.…
Storytelling + Origami = Storigami Mathematics
ERIC Educational Resources Information Center
Mastin, Marla
2007-01-01
This article presents a way to engage students in mathematics learning by using the innovative instructional method of storigami. The author shares reactions from teachers who have used her storigami techniques in their classes and provides an example of storigami using the Norwegian fable "The Dog and the Mountain." (Contains 6 figures.)
ERIC Educational Resources Information Center
Mulat, Tiruwork; Arcavi, Abraham
2009-01-01
Many studies have reported on the economical, social, and educational difficulties encountered by Ethiopian Jews since their immigration to Israel. Furthermore, the overall academic underachievement and poor representation of students of Ethiopian origin (SEO) in the advanced mathematics and science classes were highlighted and described. Yet,…
NASA Astrophysics Data System (ADS)
Hogue, Barbara A.
Research into women's underrepresentation in science, technology, engineering, and mathematics (STEM) disciplines has become a topic of interest due to the increasing need for employees with technical expertise and a shortage of individuals to fill STEM jobs. The discrepancy in women's representation between STEM and other fields cannot adequately be explained by factors such as women's need to balance work and family (medicine and law are both extremely demanding careers), women's fear of competition (admissions into medical and law schools are highly competitive), or women's inability to excel in science (e.g., entry into medicine requires excellent achievement in the basic sciences). The purpose of this study is to gain a deeper understanding of the role and/or impact a sense of belonging has inside and outside of STEM classrooms. Research questions focused on the role and/or impact of belonging contributes to students' self-efficacy beliefs as a STEM major. Bandura's self-efficacy theory serves as the theoretical framework. Data sources include close-ended surveys of 200 sophomore- and junior-level college students majoring in a STEM discipline. A quantitative exploratory approach allowed participants' responses to be analyzed using both correlation and multiple regression analyses to understand whether a student's sense of belonging is associated with his or her self-efficacy beliefs. Findings suggested that positive support systems impact students' self-efficacy and play a role in fostering students' motivation and decision to major in STEM disciplines. This study contributes to positive social change by providing empirical evidence faculty and administrators may use to promote university-based STEM support programs reflecting the impact belonging has on students' self-efficacy and potentially increasing the number of students majoring in STEM disciplines.
Prado, FB; Rossi, AC; Freire, AR; Groppo, FC; De Moraes, M; Caria, PHF
2012-01-01
Objectives The purpose of this study was to cephalometrically evaluate the pharyngeal airway space and frontal and sphenoid sinus changes after maxillomandibular advancement counterclockwise rotation for class II anterior open bite malocclusion. Methods The study included 49 patients (98 lateral teleradiographs; 36 females and 13 males) who were analysed in the pre-operative (1 week before surgery) and post-operative (6 months after surgery) periods. In each lateral teleradiography, the dimensions of the inferior and superior pharyngeal airway space, TB-PhW1 [the point between the posterior aspect of the tongue to the dorsal pharyngeal wall (oropharynx) (TB) and the point on the dorsal pharyngeal wall closest to TB (PhW1)] and UP-PhW2 [and the point between the posterior aspect of the soft palate to the dorsal pharyngeal wall (nasopharynx) (UP) (PhW2)] measurements were evaluated, as well as the dimensions of the frontal and sphenoid sinuses. The differences between the two operative times were evaluated by Student's t-test. Results All measurements showed excellent reproducibility for the intraclass correlation coefficient (ICC > 0.9; p < 0.0001). There was an increase in the measurements TB-PhW1 and UP-PhW2 and a decrease in the dimensions of the frontal and sphenoid sinuses after orthognathic surgery. Conclusions The morphology of the superior and inferior pharyngeal airway space and frontal and sphenoid sinuses changes after 6 months of maxillomandibular advancement counterclockwise rotation for class II anterior open bite malocclusion. PMID:22116128
ERIC Educational Resources Information Center
Jones, Thomas A.
1983-01-01
Mathematical techniques used to solve geological problems are briefly discussed (including comments on use of geostatistics). Highlights of conferences/meetings and conference papers in mathematical geology are also provided. (JN)
ERIC Educational Resources Information Center
Hanh, Vu Duc, Ed.
This document gives a listing of mathematical terminology in both the English and Vietnamese languages. Vocabulary used in algebra and geometry is included along with a translation of mathematical symbols. (DT)
... this page: //medlineplus.gov/ency/article/001534.htm Mathematics disorder To use the sharing features on this page, please enable JavaScript. Mathematics disorder is a condition in which a child's ...
NASA Astrophysics Data System (ADS)
Bronder, T.; Miller, H.; Stohs, J.; Lu, C.; Baker, J.; Lucero, A.
The development of a reliable and effective laser source for pumping mesospheric sodium to generate an artificial guidestar has been well documented. From the early achievements with 589nm high-power dye lasers at the Keck and Lick observatories to the ground-breaking 50W CW FASOR (Frequency Addition Source of Optical Radiation) Guidestar at the Air Forces Starfire Optical Range (SOR), there has been intense interest in this technology from both the academic and military communities. Beginning in the fall of 2008, the Air Force Research Laboratorys Advanced Electric Lasers Branch began a project to build, test, verify and deliver an upgraded version of the SOR FASOR for use at the AF Maui Optical Station (AMOS) in the summer of 2010. This FASOR will be similar in design to the existing SOR device and produce 50W of diffraction limited, linearly polarized narrow linewidth 589nm light by combining the output of two injection-locked Nd:YAG ring lasers (operating at 1064nm and 1319nm) using resonant sum-frequency generation in a lithium triborate crystal (LBO). The upgraded features will include modularized sub-components, embedded control electronics, and a simplified cooling system. The first portion of this upgrade project is to reconstruct the current SOR FASOR components and include improved methods of regulating the gain modules of the two injection lasers. In parallel with this effort, the technical plans for the modularization and re-packaging of the FASOR will be finalized and coordinated with the staff at Maui. This presentation will summarize the result of these efforts to date and provide updates on the AMOS FASOR status. Additionally, plans for "next-generation" FASOR upgrades for both SOR and AMOS will also be discussed.
ERIC Educational Resources Information Center
Kilpatrick, Jeremy
2014-01-01
This paper addresses the contested way that ethnomathematics has sometimes been received by mathematicians and others and what that disagreement might suggest about issues in mathematics education; namely, (a) the relation of ethnomathematics to academic mathematics; (b) recent efforts to reform secondary school mathematics so that it prepares…
Encouraging Young Women to Stay in the Mathematics Pipeline: Mathematics Camps for Young Women
ERIC Educational Resources Information Center
Chacon, Paul; Soto-Johnson, Hortensia
2003-01-01
For two summers, week-long residential mathematics programs were held for high school women, with the primary goal of encouraging them to continue their study of mathematics. The activities were designed to rekindle their excitement about mathematics and to support the idea that women should learn advanced mathematics. This paper reports the…
TIMSS Advanced 2008 Assessment Frameworks
ERIC Educational Resources Information Center
Garden, Robert A.; Lie, Svein; Robitaille, David F.; Angell, Carl; Martin, Michael O.; Mullis, Ina V.S.; Foy, Pierre; Arora, Alka
2006-01-01
Developing the Trends in International Mathematics and Science Study (TIMSS) Advanced 2008 Assessment Frameworks was a collaborative venture involving mathematics and physics experts from around the world. The document contains two frameworks for implementing TIMSS Advanced 2008--one for advanced mathematics and one for physics. It also contains…
Mathematical E-Learning Using Interactive Mathematics on the Web.
ERIC Educational Resources Information Center
Bringslid, Odd
2002-01-01
Explains the use of the Web as an advanced calculator using numeric, graphic, and symbolic mathematics interactively with the development of XML-standard MathML. Suggests that the problem of decreasing achievement in mathematics courses can be solved using interactive and personalized documents on the Web and improve the understanding of…
Gesture in a Kindergarten Mathematics Classroom
ERIC Educational Resources Information Center
Elia, Iliada; Evangelou, Kyriacoulla
2014-01-01
Recent studies have advocated that mathematical meaning is mediated by gestures. This case study explores the gestures kindergarten children produce when learning spatial concepts in a mathematics classroom setting. Based on a video study of a mathematical lesson in a kindergarten class, we concentrated on the verbal and non-verbal behavior of one…
Annotated Bibliography of Mathematics Resources. Program Resources.
ERIC Educational Resources Information Center
Markus, Nancy L.
Two bibliographies that review 18 books and resource materials that adult educators can use to teach mathematics in adult literacy classes are included. The materials are suggested to help teachers implement an effective, successful mathematics program, using many of the strategies recommended by the National Council of Teachers of Mathematics.…
Computer Aided Learning of Mathematics: Software Evaluation
ERIC Educational Resources Information Center
Yushau, B.; Bokhari, M. A.; Wessels, D. C. J.
2004-01-01
Computer Aided Learning of Mathematics (CALM) has been in use for some time in the Prep-Year Mathematics Program at King Fahd University of Petroleum & Minerals. Different kinds of software (both locally designed and imported) have been used in the quest of optimizing the recitation/problem session hour of the mathematics classes. This paper…
Promoting Mathematical Discourse: Learning from Classroom Examples.
ERIC Educational Resources Information Center
Manouchehri, Azita; Enderson, Mary C.
1999-01-01
Recommends that mathematics instruction should promote student discourse by orchestrating situations in which each individual's thinking is challenged and asking students to clarify and justify ideas. Provides a vignette of a heterogeneously grouped seventh-grade mathematics class to illustrate the process of mathematical discourse. (ASK)
Mathematical Anxiety among Business Statistics Students.
ERIC Educational Resources Information Center
High, Robert V.
A survey instrument was developed to identify sources of mathematics anxiety among undergraduate business students in a statistics class. A number of statistics classes were selected at two colleges in Long Island, New York. A final sample of n=102 respondents indicated that there was a relationship between the mathematics grade in prior…
New Technologies in Mathematics.
ERIC Educational Resources Information Center
Sarmiento, Jorge
An understanding of past technological advancements can help educators understand the influence of new technologies in education. Inventions such as the abacus, logarithms, the slide rule, the calculating machine, computers, and electronic calculators have all found their place in mathematics education. While new technologies can be very useful,…
Audiovisual Materials in Mathematics.
ERIC Educational Resources Information Center
Raab, Joseph A.
This pamphlet lists five thousand current, readily available audiovisual materials in mathematics. These are grouped under eighteen subject areas: Advanced Calculus, Algebra, Arithmetic, Business, Calculus, Charts, Computers, Geometry, Limits, Logarithms, Logic, Number Theory, Probability, Soild Geometry, Slide Rule, Statistics, Topology, and…
Mathematical Modeling and Pure Mathematics
ERIC Educational Resources Information Center
Usiskin, Zalman
2015-01-01
Common situations, like planning air travel, can become grist for mathematical modeling and can promote the mathematical ideas of variables, formulas, algebraic expressions, functions, and statistics. The purpose of this article is to illustrate how the mathematical modeling that is present in everyday situations can be naturally embedded in…
Bailey, David H.; Borwein, Jonathan M.; Crandall, Richard E.
2006-06-01
From an experimental-mathematical perspective we analyze"Ising-class" integrals. Our experimental results involvedextreme-precision, multidimensional quadrature on intricate integrands;thus, highly parallel computation was required.
NASA Astrophysics Data System (ADS)
Stöltzner, Michael
Answering to the double-faced influence of string theory on mathematical practice and rigour, the mathematical physicists Arthur Jaffe and Frank Quinn have contemplated the idea that there exists a `theoretical' mathematics (alongside `theoretical' physics) whose basic structures and results still require independent corroboration by mathematical proof. In this paper, I shall take the Jaffe-Quinn debate mainly as a problem of mathematical ontology and analyse it against the backdrop of two philosophical views that are appreciative towards informal mathematical development and conjectural results: Lakatos's methodology of proofs and refutations and John von Neumann's opportunistic reading of Hilbert's axiomatic method. The comparison of both approaches shows that mitigating Lakatos's falsificationism makes his insights about mathematical quasi-ontology more relevant to 20th century mathematics in which new structures are introduced by axiomatisation and not necessarily motivated by informal ancestors. The final section discusses the consequences of string theorists' claim to finality for the theory's mathematical make-up. I argue that ontological reductionism as advocated by particle physicists and the quest for mathematically deeper axioms do not necessarily lead to identical results.
Predicting success on the Advanced Placement Biology Examination
NASA Astrophysics Data System (ADS)
Shepherd, Lesa Hanlin
Four hundred sixty students in four public high schools were used as subjects to determine which of eleven academic and demographic factors studied were significant predictors of success for the Advanced Placement Biology Examination. Factors studied were attendance, class rank, gender, grade level at the time of the examination, grade point average, level of prerequisite biology course, number of Advanced Placement Examinations taken in the year prior to the Advanced Placement Biology Examination, number of Advanced Placement Examinations taken in the same year as the Advanced Placement Biology Examination, proposed major in college, race, and SAT mathematics, verbal, and combined score. Significant relationships were found to exist between the Advanced Placement Biology Examination score and attendance, class rank, gender, grade level at the time of the Advanced Placement Biology Examination, grade point average, number of Advanced Placement Examinations taken in the year prior to the Advanced Placement Biology Examination, number of Advanced Placement Examinations taken in the same year as the Advanced Placement Biology Examination, race, and SAT scores. Significant relationships were not found to exist between Advanced Placement Biology Examination score and level prerequisite biology course and Advanced Placement Biology Examination score and proposed major in college. A multiple regression showed the best combination of predictors to be attendance, SAT verbal score, and SAT mathematics score. Discriminant analysis showed the variables in this study to be good predictors of whether the student would pass the Advanced Placement Biology Examination (score a 3, 4, or 5) or fail the Advanced Placement Biology Examination (score a 1 or 2). These results demonstrated that significant predictors for the Advanced Placement Biology Examination do exist and can be used to assist in the prediction of scores, prediction of passing or failing, the identification of
Mathematization in introductory physics
NASA Astrophysics Data System (ADS)
Brahmia, Suzanne M.
Mathematization is central to STEM disciplines as a cornerstone of the quantitative reasoning that characterizes these fields. Introductory physics is required for most STEM majors in part so that students develop expert-like mathematization. This dissertation describes coordinated research and curriculum development for strengthening mathematization in introductory physics; it blends scholarship in physics and mathematics education in the form of three papers. The first paper explores mathematization in the context of physics, and makes an original contribution to the measurement of physics students' struggle to mathematize. Instructors naturally assume students have a conceptual mastery of algebra before embarking on a college physics course because these students are enrolled in math courses beyond algebra. This paper provides evidence that refutes the validity of this assumption and categorizes some of the barriers students commonly encounter with quantification and representing ideas symbolically. The second paper develops a model of instruction that can help students progress from their starting points to their instructor's desired endpoints. Instructors recognize that the introductory physics course introduces new ideas at an astonishing rate. More than most physicists realize, however, the way that mathematics is used in the course is foreign to a large portion of class. This paper puts forth an instructional model that can move all students toward better quantitative and physical reasoning, despite the substantial variability of those students' initial states. The third paper describes the design and testing of curricular materials that foster mathematical creativity to prepare students to better understand physics reasoning. Few students enter introductory physics with experience generating equations in response to specific challenges involving unfamiliar quantities and units, yet this generative use of mathematics is typical of the thinking involved in
SEVENTH GRADE MATHEMATICS FOR THE ACADEMICALLY TALENTED, TEACHERS' GUIDE.
ERIC Educational Resources Information Center
HORN, R.A.
MATERIALS FOR BOTH ENRICHED AND ACCELERATED MATHEMATICS COURSES ARE GIVEN. THE PRESENTATION OF THE MATERIALS IS INTENDED FOR EASY ADAPTATION OF MODIFICATION TO MEET THE NEEDS OF MOST MATHEMATICS CLASSES. SUGGESTIONS AND SUPPLEMENTARY REFERENCES IN EACH UNIT ARE OFFERED AS AIDS TO THE MATHEMATICS TEACHER IN REGULAR OR ACCELERATED CLASS. UNITS…
Special Section: Cognition and Instruction in Mathematics.
ERIC Educational Resources Information Center
Mayer, Richard E., Ed.
1989-01-01
This special section on cognition and mathematics contains an introduction and 13 articles on advances in the psychology of mathematics learning. The articles focus on how students learn to solve mathematics problems, including arithmetic computation problems, arithmetic word problems, and computer programing problems. (SLD)
Clinical Assessment in Mathematics: Learning the Craft.
ERIC Educational Resources Information Center
Hunting, Robert P.; Doig, Brian A.
1997-01-01
Discusses a professional development program called Clinical Approaches to Mathematics Assessment. Argues for the advanced training of mathematics teachers who understand knowledge construction processes of students; can use clinical tools for evaluating a student's unique mathematical "fingerprint"; and can create or adapt problems, tasks, or…
CAI in Advanced Literature Class.
ERIC Educational Resources Information Center
Hinton, Norman
1981-01-01
Ways that computer assisted instruction (CAI) can be useful in teaching English at upperclass and graduate levels are considered, with illustrations from PLATO lessons that have been composed and programmed. One lesson takes advantage of PLATO's graphic design capabilities, which enabled the teacher to design the runic figures and to show them in…
Experimental Mathematics and Mathematical Physics
Bailey, David H.; Borwein, Jonathan M.; Broadhurst, David; Zudilin, Wadim
2009-06-26
One of the most effective techniques of experimental mathematics is to compute mathematical entities such as integrals, series or limits to high precision, then attempt to recognize the resulting numerical values. Recently these techniques have been applied with great success to problems in mathematical physics. Notable among these applications are the identification of some key multi-dimensional integrals that arise in Ising theory, quantum field theory and in magnetic spin theory.
ERIC Educational Resources Information Center
Langbort, Carol, Ed.; Curtis, Deborah, Ed.
2000-01-01
The focus of this special issue is mathematics education. All articles were written by graduates of the new masters Degree program in which students earn a Master of Arts degree in Education with a concentration in Mathematics Education at San Francisco State University. Articles include: (1) "Developing Teacher-Leaders in a Masters Degree Program…
ERIC Educational Resources Information Center
Flannery, Carol A.
This manuscript provides information and problems for teaching mathematics to vocational education students. Problems reflect applications of mathematical concepts to specific technical areas. The materials are organized into six chapters. Chapter 1 covers basic arithmetic, including fractions, decimals, ratio and proportions, percentages, and…
ERIC Educational Resources Information Center
Siskiyou County Superintendent of Schools, Yreka, CA.
The purpose of this project was to raise the mathematics skills of 100 mathematically retarded students in grades one through eight by one year through the development of an inservice strategy prepared by four teacher specialists. Also used in the study was a control group of 100 students chosen from the median range of stanines on pretest scores…
ERIC Educational Resources Information Center
Prochazka, Helen
2004-01-01
One section of this "scrapbook" section describes Pythagoras' belief in the connections between music and mathematics -- that everything in the universe was a series of harmonies and regulated by music. Another section explains why Phythagoras felt it important for women to be encouraged to learn mathematics. At least 28 women were involved in his…
Does Time Matter in Improving Mathematical Discussions? The Influence of Mathematical Autonomy
ERIC Educational Resources Information Center
Kosko, Karl W.; Wilkins, Jesse L. M.
2015-01-01
Facilitating students' transition from less to more mathematically productive engagement in discussions is an important area of investigation. Research on mathematical whole-class discussions has consistently identified facilitating students' mathematical autonomy as a central component of this transition. Additionally, research commonly infers…
ERIC Educational Resources Information Center
An, Song; Capraro, Mary Margaret; Tillman, Daniel A.
2013-01-01
This article presents exploratory research investigating the way teachers integrate music into their regular mathematics lessons as well as the effects of music-mathematics interdisciplinary lessons on elementary school students' mathematical abilities of modeling, strategy and application. Two teachers and two classes of first grade and…
Factors Influencing Mathematical Competencies in Two-Year College Students.
ERIC Educational Resources Information Center
Stones, Ivan D.; And Others
1980-01-01
Reports on a study conducted to assess the influence of sex, size of high school graduating class, high school mathematics background, and attitudes toward mathematics on mathematical competency. Presents study findings based on the characteristics and Beckmann-Beal Mathematical Competency Test scores of 338 precalculus students at 6 community…
Improved Appreciation of Mathematics through an IBL Liberal Arts Mathematics Course
ERIC Educational Resources Information Center
Blyth, Russell D.
2015-01-01
The author has taught an inquiry-based liberal arts mathematics class using the text "The Heart of Mathematics: An Invitation to Effective Thinking" by Edward B. Burger and Michael Starbird a total of 20 times since Spring 2001. The students in this class have almost all been in non-technical majors and many started the semester with…
Mathematical Aspects of Scattering Amplitudes
NASA Astrophysics Data System (ADS)
Duhr, Claude
In these lectures we discuss some of the mathematical structures that appear when computing multi-loop Feynman integrals. We focus on a specific class of special functions, the so-called multiple polylogarithms, and introduce their Hopf algebra structure. We show how these mathematical concepts are useful in physics by illustrating on several examples how these algebraic structures are useful to perform analytic computations of loop integrals, in particular to derive functional equations among polylogarithms.
Confidence Wagering during Mathematics and Science Testing
ERIC Educational Resources Information Center
Jack, Brady Michael; Liu, Chia-Ju; Chiu, Hoan-Lin; Shymansky, James A.
2009-01-01
This proposal presents the results of a case study involving five 8th grade Taiwanese classes, two mathematics and three science classes. These classes used a new method of testing called confidence wagering. This paper advocates the position that confidence wagering can predict the accuracy of a student's test answer selection during…
Interaction of Fluids and Mathematics: A Classroom Study.
ERIC Educational Resources Information Center
Cupillari, Antonella; Khalilollahi, Amir
1998-01-01
Discusses how experiments can offer students different points of view on the mathematical concepts presented in class and bring these concepts to life. Presents an experiment that demonstrates the interaction between mathematics and fluid dynamics. (Author/ASK)
ERIC Educational Resources Information Center
McCammon, Richard B.
1979-01-01
The year 1978 marked a continued trend toward practical applications in mathematical geology. Developments included work in interactive computer graphics, factor analysis, the vanishing tons problem, universal kriging, and resource estimating. (BB)
The child may have problems in school, including behavior problems and loss of self-esteem. Some children with mathematics disorder become anxious or afraid when given math problems, making the problem even worse.
ERIC Educational Resources Information Center
Johnson, Jerry
1997-01-01
Presents 12 questions related to a given real-life situation about a man shaving and the number of hairs in his beard in order to help students see the connection between mathematics and the world around them. (ASK)
ERIC Educational Resources Information Center
Gardner, Martin
1978-01-01
Describes the life and work of Charles Peirce, U.S. mathematician and philosopher. His accomplishments include contributions to logic, the foundations of mathematics and scientific method, and decision theory and probability theory. (MA)
ERIC Educational Resources Information Center
Hatt-Echeverria, Beth; Urrieta, Luis, Jr.
2003-01-01
In an effort to explore how racial and class oppressions intersect, the authors use their autobiographical narratives to depict cultural and experiential continuity and discontinuity in growing up white working class versus Chicano working class. They specifically focus on "racializing class" due to the ways class is often used as a copout by…
NASA Astrophysics Data System (ADS)
Rodríguez, Nancy
2015-03-01
The use of mathematical tools has long proved to be useful in gaining understanding of complex systems in physics [1]. Recently, many researchers have realized that there is an analogy between emerging phenomena in complex social systems and complex physical or biological systems [4,5,12]. This realization has particularly benefited the modeling and understanding of crime, a ubiquitous phenomena that is far from being understood. In fact, when one is interested in the bulk behavior of patterns that emerge from small and seemingly unrelated interactions as well as decisions that occur at the individual level, the mathematical tools that have been developed in statistical physics, game theory, network theory, dynamical systems, and partial differential equations can be useful in shedding light into the dynamics of these patterns [2-4,6,12].
Malkevitch, J. ); McCarthy, D. )
1990-01-01
The papers in this volume represent talks given at the monthly meetings of the Mathematics Section of the New York Academy of Sciences. They reflect the operating philosophy of the Section in its efforts to make a meaningful contribution to the mathematical life of a community that is exceedingly rich in cultural resources and intellectual opportunities. Each week during the academic year a dazzling abundance of mathematical seminars and colloquia is available in the New York metropolitan area. Most of these offer highly technical treatments intended for specialists. At the New York Academy we try to provide a forum of a different sort, where interesting ideas are presented in a congenial atmosphere to a broad mathematical audience. Many of the Section talks contain substantial specialized material, but we ask our speakers to include a strong expository component aimed at working mathematicians presumed to have no expert knowledge of the topic at hand. We urge speakers to try to provide the motivating interest they themselves would like to find in an introduction to a field other than their own. The same advice has been given to the authors of the present papers, with the goal of producing a collection that will be both accessible and stimulating to mathematical minds at large. We have tried to provide variety in the mathematical vistas offered; both pure and applied mathematics are well represented. Since the papers are presented alphabetically by author, some guidance seems appropriate as to what sorts of topics are treated, and where. There are three papers in analysis: those by Engber, Narici and Beckenstein, and Todd. Engber's deals with complex analysis on compact Riemann surfaces; Narici and Beckenstein provide an introduction to analysis on non-Archimendean fields; Todd surveys an area of contemporary functional analysis.
Gamzatova, Z; Villabona, L; van der Zanden, H; Haasnoot, G W; Andersson, E; Kiessling, R; Seliger, B; Kanter, L; Dalianis, T; Bergfeldt, K; Masucci, G V
2007-09-01
In solid tumors, human leucocyte antigen (HLA)-A2 has been suggested to be a risk factor and a negative prognostic factor. The HLA-A2 allele in Scandinavia has a high prevalence; it decreases with latitude and also with ovarian cancer mortality in Europe. Furthermore, an association of the HLA-A2 allele with severe prognosis in serous adenocarcinoma of the ovary in stages III-IV was found. Thirty-two unrelated Swedish women with relapsing or progressive ovarian cancer were analysed for the genotypes at the HLA-A, HLA-B, HLA-Cw, and HLA-DRB1 loci by the polymerase chain reaction/sequence-specific primer method. The frequencies of HLA alleles of healthy Swedish bone marrow donors provided by the coordinating centre of the Bone Marrow Donors Worldwide Registries, Leiden, the Netherlands were used as controls. When this cohort of epithelial ovarian cancer patients was compared with healthy Swedish donors, the frequency of HLA-A1 and HLA-A2 gene/phenotype appears, although not statistically significant, to be increased in patients with ovarian carcinoma, while HLA-A3 was decreased. HLA-A2 homozygotes were twofold higher in patients. The A2-B8 haplotype was significantly increased (corrected P value). A2-B5, A2-B15, A2-DRB1*03, A2-DRB1*04, A2-B15-Cw3, and A2-B8-DRB1*03 had odds ratio as well as the level of the lower confidence interval above 1 and significant P value only when considered as single, non-corrected analysis. HLA-B15 and HLA-Cw3 were only present in HLA-A2-positive patients showing that the HLA-A2-HLA-Cw3 and HLA-B15 haplotypes were segregated. In this selected cohort with advanced disease, there are indications of an unusual overrepresentation of HLA class I and II genes/haplotypes as well as segregation for the HLA-A2-HLA-Cw3 and HLA-B15 haplotypes. These findings are presented as a descriptive analysis and need further investigations on a larger series of ovarian cancer patients to establish prognostic associations. PMID:17661908
Real Data, Real Math, All Classes, No Kidding.
ERIC Educational Resources Information Center
Bonsangue, Martin Vern
1998-01-01
Uses real data as a catalyst to explore mathematics. Presents two mathematics activities based on real data, one on earthquakes and the other on demographic data. Discusses the implications of these activities in calculus classes. (ASK)
TIMSS Advanced 2015 Assessment Frameworks
ERIC Educational Resources Information Center
Mullis, Ina V. S., Ed.; Martin, Michael O., Ed.
2014-01-01
The "TIMSS Advanced 2015 Assessment Frameworks" provides the foundation for the two international assessments to take place as part of the International Association for the Evaluation of Educational Achievement's TIMSS (Trends in International Mathematics and Science Study) Advanced 2015--Advanced Mathematics and Physics. Chapter 1 (Liv…
Schlimm, Dirk
2013-04-01
This article looks at recent work in cognitive science on mathematical cognition from the perspective of history and philosophy of mathematical practice. The discussion is focused on the work of Lakoff and Núñez, because this is the first comprehensive account of mathematical cognition that also addresses advanced mathematics and its history. Building on a distinction between mathematics as it is presented in textbooks and as it presents itself to the researcher, it is argued that the focus of cognitive analyses of historical developments of mathematics has been primarily on the former, even if they claim to be about the latter. PMID:23580452
The Effects of Constructivist Learning Environment on Prospective Mathematics Teachers' Opinions
ERIC Educational Resources Information Center
Narli, Serkan; Baser, Nes'e
2010-01-01
To explore the effects of constructivist learning environment on prospective teachers' opinions about "mathematics, department of mathematics, discrete mathematics, countable and uncountable infinity" taught under the subject of Cantorian Set Theory in discrete mathematics class, 60 first-year students in the Division of Mathematics Education at…
Murphy, Mark B.
2000-10-25
The Nash Draw Brushy Canyon Pool (NDP) is southeast New Mexico is one of the nine projects selected in 1995 by the U.S. Department of Energy (DOE) for participation in the Class III Reservoir Field Demonstration Program. The goals of the DOE cost-shared Class Program are to: (1) extend economic production, (2) increase ultimate recovery, and (3) broaden information exchange and technology application. Reservoirs in the Class III Program are focused on slope-basin and deep-basin clastic depositional types.
Keystone Method: A Learning Paradigm in Mathematics
ERIC Educational Resources Information Center
Siadat, M. Vali; Musial, Paul M.; Sagher, Yoram
2008-01-01
This study reports the effects of an integrated instructional program (the Keystone Method) on the students' performance in mathematics and reading, and tracks students' persistence and retention. The subject of the study was a large group of students in remedial mathematics classes at the college, willing to learn but lacking basic educational…
Mathematical Theory of Peer-Instruction Dynamics
ERIC Educational Resources Information Center
Nitta, Hideo
2010-01-01
A mathematical theory of peer instruction describing the increase of the normalized number of correct answers due to peer discussion is presented. A simple analytic expression is derived which agrees with class data. It is shown that our theory is connected to the mathematical learning models proposed by Pritchard et al. It is also shown that…
Learning by Design: Undergraduate Scientists Learning Mathematics.
ERIC Educational Resources Information Center
Noss, Richard
1999-01-01
Starts from the premise that simultaneous study of design and learning together may throw light on epistemological and psychological issues in learning mathematics. Studies undergraduate science students who take mathematics classes and reveals a complex relationship between design and learning with implications for the design of instructional…
Student Perspectives of Web-Based Mathematics
ERIC Educational Resources Information Center
Loong, Esther Yook-Kin; Herbert, Sandra
2012-01-01
This paper presents the results of a survey conducted with students (N = 97) whose teachers have used the Web in their mathematics classes. Their responses to the use of the Internet for learning mathematics are reported here. Factor analyses were used to determine the constructs that underlie the survey. These constructs were found to be…
Mathematics and Molecules: Exploring Connections via Programming.
ERIC Educational Resources Information Center
Ploger, Don; Carlock, Margaret
1996-01-01
Examines the self-directed activity of two students who learned about molecular structure by writing computer programs. The programs displayed the solution of a mathematics problem, then the programs were extended to represent several classes of organic molecules. Different ways to enhance mathematical connections to chemistry education are…
Creative Mathematics in the Primary Classroom
ERIC Educational Resources Information Center
Cooper, Phil
2011-01-01
This article sets out how the author believes mathematics might be taught in creative ways. It is about the author's developing thoughts on how he teaches mathematics, how his class responds to his teaching, and how he adjusts his teaching through assessment of children's learning. Through observations and assessment of learning following his…
Popcorn: An Explosive Mixture of General Mathematics.
ERIC Educational Resources Information Center
Westerberg, Judy; Whiting, Jack
1992-01-01
Presents an activity developed for back-to-back general science and mathematics classes involving measurement, data analysis, and consumer mathematics. Students compare brands of popcorn for number of popped and unpopped kernels, volume, size, color, texture, and flavor, and develop advertisements for the best brands. Suggests possible extension…
Mathematical Imagination and Embodied Cognition
ERIC Educational Resources Information Center
Nemirovsky, Ricardo; Ferrara, Francesca
2009-01-01
The goal of this paper is to explore qualities of mathematical imagination in light of a classroom episode. It is based on the analysis of a classroom interaction in a high school Algebra class. We examine a sequence of nine utterances enacted by one of the students whom we call Carlene. Through these utterances Carlene illustrates, in our view,…
Mathematical Modeling of Chemical Stoichiometry
ERIC Educational Resources Information Center
Croteau, Joshua; Fox, William P.; Varazo, Kristofoland
2007-01-01
In beginning chemistry classes, students are taught a variety of techniques for balancing chemical equations. The most common method is inspection. This paper addresses using a system of linear mathematical equations to solve for the stoichiometric coefficients. Many linear algebra books carry the standard balancing of chemical equations as an…
ERIC Educational Resources Information Center
New York City Board of Education, Brooklyn, NY.
This curriculum bulletin is designed to help teachers meet the diverse needs in mathematics of the children in fifth grade classes. In addition to the emphasis that is placed on arithmetic computational skills, the bulletin shows how to include other areas considered important, such as concepts, skills, and ideas from algebra and geometry. The 80…
Murphy, Michael B.
2002-02-21
The overall objective of this project is to demonstrate that a development program based on advanced reservoir management methods can significantly improve oil recovery at the Nash Draw Pool (NDP). The plan includes developing a control area using standard reservoir management techniques and comparing its performance to an area developed using advanced reservoir management methods. Specific goals are (1) to demonstrate that an advanced development drilling and pressure maintenance program can significantly improve oil recovery compared to existing technology applications and (2) to transfer these advanced methodologies to oil and gas producers in the Permian Basin and elsewhere throughout the U.S. oil and gas industry.
Murphy, Mark B.
2002-01-16
The overall objective of this project was to demonstrate that a development program-based on advanced reservoir management methods-can significantly improve oil recovery at the Nash Draw Pool (NDP). The plan included developing a control area using standard reservoir management techniques and comparing its performance to an area developed using advanced reservoir management methods. Specific goals were (1) to demonstrate that an advanced development drilling and pressure maintenance program can significantly improve oil recovery compared to existing technology applications and (2) to transfer these advanced methodologies to oil and gas producers in the Permian Basin and elsewhere throughout the U.S. oil and gas industry.
ERIC Educational Resources Information Center
Lapointe, Archie E.; And Others
In 1990-91, 20 countries (Brazil, Canada, China, England, France, Hungary, Ireland, Israel, Italy, Jordan, Korea, Mozambique, Portugal, Scotland, Slovenia, Soviet Union, Spain, Switzerland, Taiwan, and the United States) surveyed the mathematics and science performance of 13-year-old students (and 14 countries also assessed 9-year-olds in the same…
ERIC Educational Resources Information Center
Hadlock, Charles R
2013-01-01
The movement of groundwater in underground aquifers is an ideal physical example of many important themes in mathematical modeling, ranging from general principles (like Occam's Razor) to specific techniques (such as geometry, linear equations, and the calculus). This article gives a self-contained introduction to groundwater modeling with…
ERIC Educational Resources Information Center
Catterton, Gene; And Others
This material was developed to be used with the non college-bound student in the senior high school. It provides the student with everyday problems and experiences in which practical mathematical applications are made. The package includes worksheets pertaining to letterhead invoices, sales slips, payroll sheets, inventory sheets, carpentry and…
ERIC Educational Resources Information Center
Berryman, Sue E.
This paper describes trends in and causes of minority and female representation among holders of advanced science and math degrees. The minority groups studied are Blacks, Hispanic Americans, American Indians, and Asian Americans, all of whom are compared with Whites. The degrees looked at include those in math, the computer sciences, physical…
Mathematics Curriculum Guide. Mathematics IV.
ERIC Educational Resources Information Center
Gary City Public School System, IN.
GRADES OR AGES: Grade 12. SUBJECT MATTER: Mathematics. ORGANIZATION AND PHYSICAL APPEARANCE: The subject matter is presented in four columns: major areas, significant outcomes, observations and suggestions, and films and references. The topics include: sets-relations-functions, circular functions, graphs of circular functions, inverses of circular…
J.K. Brimacombe; I.V. Samarasekera; E.B. Hawbolt; T.R. Meadowcroft; M. Militzer; W.J. Pool; D.Q. Jin
1999-07-31
This report describes the work of developing an integrated model used to predict the thermal history, deformation, roll forces, microstructural evolution and mechanical properties of steel strip in a hot-strip mill. This achievement results from a joint research effort that is part of the American Iron and Steel Institute's (AIS) Advanced Process Control Program, a collaboration between the U.S. DOE and fifteen North American Steelmakers.
The Student Mathematics Portfolio: Value Added to Student Preparation?
ERIC Educational Resources Information Center
Burks, Robert
2010-01-01
This article describes key elements for educators to successfully implement a student mathematics portfolio in an undergraduate mathematics course. This article offers practical advice for implementing a student mathematics portfolio in a freshman precalculus course. We look at the potential value added to student class preparation and compare our…
The Relationship between Epistemological Beliefs and Teaching Anxiety in Mathematics
ERIC Educational Resources Information Center
Ertekin, Erhan; Dilmac, Bulent; Yazici, Ersen; Peker, Murat
2010-01-01
The purpose of this study is to investigate the relationship between the anxiety of teaching mathematics and epistemological beliefs of prospective teachers. Research was carried out on 279 teacher candidates studying in the primary education mathematics teaching, secondary education mathematics teaching and class teaching programs. A 23-item…
Single-Sex Mathematics Instruction in an Urban Independent School.
ERIC Educational Resources Information Center
Seitsinger, Anne M.; Barboza, Helen C.; Hird, Anne
An urban independent middle school grouped its 63 sixth and seventh graders into single-sex mathematics classes (SSMC) to improve girls' achievement in mathematics (AIM) and attitudes toward mathematics (ATM) with no negative impact on boys. Researchers analyzed AIM, ATM, and interactions/instruction. AIM measures included Metropolitan Achievement…
Developing a Caring Ethic for Middle School Mathematics Classrooms
ERIC Educational Resources Information Center
Powell, Angiline; Seed, Allen H.
2010-01-01
The authors, Angiline and Al, are university teacher educators who share similar experiences building community in middle grades mathematics classroom. As eighth grade mathematics teachers, they began the year building relationships with their students and encouraging communication to establish a caring ethic. In their mathematics classes, a…
ERIC Educational Resources Information Center
Underwood, Siobhan; Lumsden, Linda S.
1994-01-01
The items featured in this annotated bibliography touch on several aspects of the multifaceted class-size debate. Allen Odden reviews the literature and contends that class-size reduction should be used "sparingly and strategically." C. M. Achilles and colleagues examines two different class-size situations and find student test performance in the…
ERIC Educational Resources Information Center
Johnston, Holly R.
Exploring the class-size issue, this paper focuses on the primary grades and asks questions such as "does a reduction in class size promote an increase in academic achievement?" and "how substantial does the reduction in numbers have to be in order for a significant increase to occur?" The paper surveys debates on class size and the social factors…
ERIC Educational Resources Information Center
Valdata, Patricia
2005-01-01
Ever since George Washington opted for the title of president rather than king, Americans have been uncomfortable with the idea of class distinctions. This article presents an interview with Dr. Janet Galligani Casey regarding the idea of class distinctions. Galligani Casey, who grew up in a working-class neighborhood in Somerville, Massachusetts,…
Children's Mathematical Thinking in Different Classroom Cultures
ERIC Educational Resources Information Center
Wood, Terry; Williams, Gaye; McNeal, Betsy
2006-01-01
The relationship between normative patterns of social interaction and children's mathematical thinking was investigated in 5 classes (4 reform and 1 conventional) of 7- to 8-year-olds. In earlier studies, lessons from these classes had been analyzed for the nature of interaction broadly defined; the results indicated the existence of 4 types of…
Beyond Computation: Improving Mathematical Problem Solving.
ERIC Educational Resources Information Center
Anderson, Jennifer M.; Olson, Jennifer S.; Wrobel, Margaret L.
This action research describes a program for improving mathematical problem solving skills. The targeted population consisted of first grade students in a transient, middle class community as well as third and sixth grade students from a growing, middle to upper class in Illinois. The concerns of problem solving were documented through teacher…
Class Construction: White Working-Class Student Identity in the New Millennium
ERIC Educational Resources Information Center
Freie, Carrie
2007-01-01
"Class Construction" explores class, racial, and gender identity construction among white, working-class students. Delving into River City High School, Freie asks what happens to the adolescent children of working-class families when economic changes such as globalization and technological advancements have altered the face of working-class jobs.…
The Myth of Objectivity in Mathematics Assessment.
ERIC Educational Resources Information Center
Romagnano, Lew
2001-01-01
Investigates meaningful assessment to give teachers information on students' understanding of mathematical ideas and how their understanding changes over time. Presents examples collected from a teacher-made quiz, the Advanced Placement calculus test, and the SAT-I Mathematics test. Illustrates both the inherent subjectivity of these methods and…
Mathematical Rigor in the Common Core
ERIC Educational Resources Information Center
Hull, Ted H.; Balka, Don S.; Miles, Ruth Harbin
2013-01-01
A whirlwind of activity surrounds the topic of teaching and learning mathematics. The driving forces are a combination of changes in assessment and advances in technology that are being spurred on by the introduction of content in the Common Core State Standards for Mathematical Practice. Although the issues are certainly complex, the same forces…
Mathematics majors' beliefs about proof reading
NASA Astrophysics Data System (ADS)
Weber, Keith; Mejia-ramos, Juan Pablo
2014-01-01
We argue that mathematics majors learn little from the proofs they read in their advanced mathematics courses because these students and their teachers have different perceptions about students' responsibilities when reading a mathematical proof. We used observations from a qualitative study where 28 undergraduates were observed evaluating mathematical arguments to hypothesize that mathematics majors hold four specific unproductive beliefs about proof reading. We then conducted a survey about these beliefs with 175 mathematics majors and 83 mathematicians. We found that mathematics majors were more likely to believe that when reading a good proof, they are not expected to construct justifications and diagrams, they can understand most proofs they read within 15 minutes, and understanding a proof is tantamount to being able to justify each step in the proof.
Science and Mathematics in Astronomy
NASA Technical Reports Server (NTRS)
Woolack, Edward
2009-01-01
A brief historical introduction to the development of observational astronomy will be presented. The close historical relationship between the successful application of mathematical concepts and advances in astronomy will be presented. A variety of simple physical demonstrations, hands-on group activities, and puzzles will be used to understand how the properties of light can be used to understand the contents of our universe.
ERIC Educational Resources Information Center
Sagirli, Meryem Özturan
2016-01-01
The aim of the present study is to investigate pre-service secondary mathematics teachers' cognitive-metacognitive behaviours during the mathematical problem-solving process considering class level. The study, in which the case study methodology was employed, was carried out with eight pre-service mathematics teachers, enrolled at a university in…
Pushing the Limit: A Class Project
ERIC Educational Resources Information Center
Odafe, Victor U.
2012-01-01
Instructors are constantly struggling to help students understand mathematical concepts as well as the relevance of mathematics to the real world. In calculus, students possess misconceptions of the limit concept. "Pushing the Limit" refers to a semester-long calculus class project that required students to read about, interview calculus…
ERIC Educational Resources Information Center
Glassman, Phyllis
Two intermediate elementary schools in the Bay Shore District of Bay Shore, New York, were studied to assess the impact upon student achievement of a program in cooperative learning applied to mathematics, reading, and writing. The schools include the Gardiner Manor and South Country Schools; in the 1986-87 school year, 510 students attended the…
Approaches to Studying the Enacted Mathematics Curriculum. Research in Mathematics Education
ERIC Educational Resources Information Center
Heck, Dan, Ed.; Chval, Kathryn, Ed.; Weiss, Iris, Ed.; Ziebarth, Steven W., Ed.
2012-01-01
Curriculum materials are among the most pervasive and powerful influences on school mathematics. In many mathematics classes, student assignments, the questions the teacher asks, the ways students are grouped, the forms of assessment, and much more originate in curriculum materials. At the same time, teachers have considerable latitude in how they…
Mathematics Models in Chemistry--An Innovation for Non-Mathematics and Non-Science Majors
ERIC Educational Resources Information Center
Rash, Agnes M.; Zurbach, E. Peter
2004-01-01
The intention of this article is to present a year-long interdisciplinary course, Mathematical Models in Chemistry. The course is comprised of eleven units, each of which has both a mathematical and a chemical component. A syllabus of the course is given and the format of the class is explained. The interaction of the professors and the content is…
Edwards, A W F
2011-03-01
Ernst Mayr called the first part of the evolutionary synthesis the 'Fisherian synthesis' on account of the dominant role played by R.A. Fisher in forging a mathematical theory of natural selection together with J.B.S. Haldane and Sewall Wright in the decade 1922-1932. It is here argued that Fisher's contribution relied on a close reading of Darwin's work to a much greater extent than did the contributions of Haldane and Wright, that it was synthetic in contrast to their analytic approach and that it was greatly influenced by his friendship with the Darwin family, particularly with Charles's son Leonard. PMID:21423339
Multiple Functions in Equivalence Classes
ERIC Educational Resources Information Center
McVeigh, Brian; Keenan, Mickey
2009-01-01
Four experiments examined the effects of training a "drawing" response to each of three stimuli in a 5-member equivalence class. In Experiment 1 the stimuli were an arbitrary word, a shape, or a mathematical symbol. Subjects then were trained to draw a separate component of a stickman at each of the 3 stimuli. Subsequent tests for function…
Alleman, T. L.; Tennant, C. J.; Hayes, R. R.; Miyasato, M.; Oshinuga, A.; Barton, G.; Rumminger, M.; Duggal, V.; Nelson, C.; Ray, M.; Cherrillo, R. A.
2005-11-01
A 2002 Cummins ISM engine was modified to be optimized for operation on gas-to-liquid (GTL) fuel and advanced emission control devices. The engine modifications included increased exhaust gas recirculation (EGR), decreased compression ratio, and reshaped piston and bowl configuration.
Gender Differences in School Achievement: A Within-Class Perspective
ERIC Educational Resources Information Center
Cahan, Sorel; Barneron, Meir; Kassim, Suhad
2014-01-01
Relying on the results of the achievement tests in mathematics, science, native language (Hebrew/Arabic) and English, administered to 1430 5th-grade co-educational classes in Israel, this study examines the between-class variability of the within-class mean score gender differences and its class and school correlates. The four main results of the…
Predictors of Performance in Navy Electronics Skills: The Effect of Mathematical Skills.
ERIC Educational Resources Information Center
Baker, Meryl S.
This effort is part of a project designed to identify mathematical requirements related to Navy electronics training. The relationship between mathematics ability and electronics performance in the Navy's Basic Electricity and Electronics (BE/E), Class "A," and Class "C" schools was examined to identify the mathematics skills required to complete…
ERIC Educational Resources Information Center
Akyuz, Gozde; Berberoglu, Giray
2010-01-01
Background: Teacher-related factors such as gender, experience, conceptions related to mathematics, instructional practices have effects with various magnitudes on students' mathematics achievement. Classroom related factors such as class size, class climate and limitations to teaching and their relation to mathematics achievement have also been…
Trying out Acceleration for Mathematically Talented Fifth Graders
ERIC Educational Resources Information Center
Maggio, M. Raine; Sayler, Micheal
2013-01-01
Parents and schools often notice the need for addressing advanced mathematical performance in elementary students. Many gifted programs do not offer differentiated or accelerated mathematics as part of their elementary school options. In this report, the efforts of one school system to identify and serve the needs of highly mathematically able…
Mathematics in Literature and Cinema: An Interdisciplinary Course
ERIC Educational Resources Information Center
Chabrán, H. Rafael; Kozek, Mark
2016-01-01
We describe our team-taught, interdisciplinary course "Numb3rs in Lett3rs & Fi1ms: Mathematics in Literature and Cinema," which explores mathematics in the context of modern literature and cinema. Our goal with this course is to advance collaborations between mathematics and the written/theatre-based creative arts.
Reprint Series: What is Contemporary Mathematics. RS-3.
ERIC Educational Resources Information Center
Schaaf, William L., Ed.
This is one in a series of SMSG supplementary and enrichment pamphlets for high school students. This series makes available expository articles which appeared in a variety of mathematical periodicals. Topics covered include: (1) the nature of mathematics; (2) mathematical inutility and the advance of science; and (3) logic. (MP)
Class Differences in Cohabitation Processes
ERIC Educational Resources Information Center
Sassler, Sharon; Miller, Amanda J.
2011-01-01
Despite the burgeoning cohabitation literature, research has failed to examine social class variation in processes of forming and advancing such unions. Drawing upon in-depth interviews with 122 working- and middle-class cohabitors, we examine the duration between dating and moving in together, reasons for cohabiting, and subsequent plans.…
Gupta, Santosh; Banthia, Ruchi; Singh, Pallavi; Banthia, Priyank; Raje, Sapna; Aggarwal, Neha
2015-01-01
Background: The aim of this study was to compare the clinical efficacy of coronally advanced flap (CAF) alone and in combination with autologous platelet rich fibrin membrane (PRF) in Miller's class I and II gingival recessions. Materials and Method: Thirty isolated Miller class I or II sites in 26 subjects were randomly divided into test (15 sites- CAF+PRF) and control (15 sites- CAF alone). Parameters probing pocket depth (PPD), Recession depth (RD), Clinical attachment loss (CAL), Keratinised tissue width (KTW) and Gingival tissue thickness (GTH) were evaluated at baseline, 3 months and 6 months postoperatively. Data was subjected to statistical analysis. P< 0.05 was considered statistically significant. Results: Mean percentage root coverage was 91.00±19.98% and 86.60±23.83% for test and control group respectively. Difference between the groups in all parameters at baseline, 3 months and 6 months was non significant. Complete root coverage was obtained in 12 (80%) and 11 (73.3%) subjects in test and control group respectively. The difference was found to be non-significant. Both groups showed significant differences in all parameters at 3 and 6 months respectively except difference in gingival tissue thickness which was non-significant in control group at 3 months. Conclusion: Combination of PRF to CAF procedure did not provide any added advantage in term of recession coverage in Miller class I and II recessions. Long term trials with more sample size are needed to validate these findings. PMID:26097347
Perri, Pasquale R.; Cooney, John; Fong, Bill; Julander, Dale; Marasigan, Aleks; Morea, Mike; Piceno, Deborah; Stone, Bill; Emanuele, Mark; Sheffield, Jon; Wells, Jeff; Westbrook, Bill; Karnes, Karl; Pearson, Matt; Heisler, Stuart
2000-04-24
The primary objective of this project was to conduct advanced reservoir characterization and modeling studies in the Antelope Shale of the Bureau Vista Hills Field. Work was subdivided into two phases or budget periods. The first phase of the project focused on a variety of advanced reservoir characterization techniques to determine the production characteristics of the Antelope Shale reservoir. Reservoir models based on the results of the characterization work would then be used to evaluate how the reservoir would respond to enhanced oil recovery (EOR) processes such as of CO2 flooding. The second phase of the project would be to implement and evaluate a CO2 in the Buena Vista Hills Field. A successful project would demonstrate the economic viability and widespread applicability of CO2 flooding in siliceous shale reservoirs of the San Joaquin Valley.
Dutton, Shirley P.; Flanders, William A.; Mendez, Daniel L.
2001-05-08
The objective of this Class 3 project was demonstrate that detailed reservoir characterization of slope and basin clastic reservoirs in sandstone's of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico is a cost effective way to recover oil more economically through geologically based field development. This project was focused on East Ford field, a Delaware Mountain Group field that produced from the upper Bell Canyon Formation (Ramsey sandstone). The field, discovered in 9160, is operated by Oral Petco, Inc., as the East Ford unit. A CO2 flood was being conducted in the unit, and this flood is the Phase 2 demonstration for the project.
Dutton, Shirley P.; Flanders, William A.
2001-11-04
The objective of this Class III project was demonstrate that reservoir characterization and enhanced oil recovery (EOR) by CO2 flood can increase production from slope and basin clastic reservoirs in sandstones of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico. Phase 1 of the project, reservoir characterization, focused on Geraldine Ford and East Ford fields, which are Delaware Mountain Group fields that produce from the upper Bell Canyon Formation (Ramsey sandstone). The demonstration phase of the project was a CO2 flood conducted in East Ford field, which is operated by Orla Petco, Inc., as the East Ford unit.
Wier, Don R. Chimanhusky, John S.; Czirr, Kirk L.; Hallenbeck, Larry; Gerard, Matthew G.; Dollens, Kim B.; Owen, Rex; Gaddis, Maurice; Moshell, M.K.
2002-11-18
The purpose of this project was to economically design an optimum carbon dioxide (CO2) flood for a mature waterflood nearing its economic abandonment. The original project utilized advanced reservoir characterization and CO2 horizontal injection wells as the primary methods to redevelop the South Cowden Unit (SCU). The development plans; project implementation and reservoir management techniques were to be transferred to the public domain to assist in preventing premature abandonment of similar fields.
Addressing Continuing Mathematical Deficiencies with Advanced Mathematical Diagnostic Testing
ERIC Educational Resources Information Center
Carr, Michael; Murphy, Eoin; Bowe, Brian; Ni Fhloinn, Eabhnat
2013-01-01
Dublin Institute of Technology offers students a number of different routes into engineering, allowing many non-standard entrants the opportunity to study the discipline provided they fulfil certain criteria. The final aim of many of these students is to achieve an Honours Degree in Engineering, which takes a minimum of 4 years. Apart from the…
Paul, Renny
2016-01-01
Introduction. Gingival recession is an apical shift of the gingival margin with exposure of the root surface. This migration of the marginal tissue leads to esthetic concerns, dentin hypersensitivity, root caries, and cervical wear. It is, paradoxically, a common finding in patients with a high standard of oral hygiene, as well as in periodontally untreated populations with poor oral hygiene. Changing the topography of the marginal soft tissue in order to facilitate plaque control is a common indication for root coverage procedures and forms a major aspect of periodontal plastic surgeries. The regeneration of a new connective tissue attachment to denuded root surface is by allowing the selective coronal regrowth of periodontal ligament cells while excluding the gingival tissues from the root during wound healing by means of a barrier membrane. Case Presentation. This case reports a two-stage surgical technique for treatment of Miller's class III defect using free gingival autograft and type I absorbable collagen membrane (BioMend®, Zimmer Dental, USA)§. Conclusions. The 6-month follow-up of the case showed a significant increase in attached gingiva suggesting it as a predictable alternative in the treatment of Millers class III defects. PMID:27525131
Rath, Avita; Varma, Smrithi; Paul, Renny
2016-01-01
Introduction. Gingival recession is an apical shift of the gingival margin with exposure of the root surface. This migration of the marginal tissue leads to esthetic concerns, dentin hypersensitivity, root caries, and cervical wear. It is, paradoxically, a common finding in patients with a high standard of oral hygiene, as well as in periodontally untreated populations with poor oral hygiene. Changing the topography of the marginal soft tissue in order to facilitate plaque control is a common indication for root coverage procedures and forms a major aspect of periodontal plastic surgeries. The regeneration of a new connective tissue attachment to denuded root surface is by allowing the selective coronal regrowth of periodontal ligament cells while excluding the gingival tissues from the root during wound healing by means of a barrier membrane. Case Presentation. This case reports a two-stage surgical technique for treatment of Miller's class III defect using free gingival autograft and type I absorbable collagen membrane (BioMend®, Zimmer Dental, USA)(§). Conclusions. The 6-month follow-up of the case showed a significant increase in attached gingiva suggesting it as a predictable alternative in the treatment of Millers class III defects. PMID:27525131
Examining Classroom Interactions & Mathematical Discourses
ERIC Educational Resources Information Center
Grant, Melva R.
2009-01-01
This investigation examined interactions in three classrooms to determine how they influenced Discourses related to mathematics learning and teaching. Mathematics education literature suggests that effective mathematics instruction includes mathematical Discourses. However, effective mathematical Discourses within mathematics classrooms vary…
Authenticity of Mathematical Modeling
ERIC Educational Resources Information Center
Tran, Dung; Dougherty, Barbara J.
2014-01-01
Some students leave high school never quite sure of the relevancy of the mathematics they have learned. They fail to see links between school mathematics and the mathematics of everyday life that requires thoughtful decision making and often complex problem solving. Is it possible to bridge the gap between school mathematics and the mathematics in…
Increasing mathematical problem-solving performance through relaxation training
NASA Astrophysics Data System (ADS)
Sharp, Conni; Coltharp, Hazel; Hurford, David; Cole, Amykay
2000-04-01
Two intact classes of 30 undergraduate students enrolled in the same general education mathematics course were each administered the IPSP Mathematics Problem Solving Test and the Mathematics Anxiety Rating Scale at the beginning and end of the semester. Both groups experienced the same syllabus, lectures, course requirements, and assessment techniques; however, one group received relaxation training during an initial class meeting and during the first 5 to 7 minutes of each subsequent class. The group which had received relaxation training had significantly lower mathematics anxiety and significantly higher mathematics performance at the end of the course. The results suggest that relaxation training may be a useful tool for treating anxiety in undergraduate general education mathematics students.
ERIC Educational Resources Information Center
Liljedahl, Peter G.
2005-01-01
The AHA! experience-the moment of illumination on the heels of lengthy, and seemingly fruitless, intentional effort-has long been the basis for lore in mathematics. Unfortunately, such lore is often restricted to the discussion of these phenomena in the context of great mathematicians and great mathematical advancement. But are such experiences…