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This study examined how one teacher used research-based knowledge of how adolescents think about proportions. Observations, interviews, document collection, and a workshop intervention were utilized. The design of the workshop was inspired by the cognitively guided instruction studies and its purpose was to explore the research findings on adolescents' thinking about proportions. An individual case study was created to describe the teacher's instruction related to proportion concepts, rationales...
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Published on Mar 15, 2009
Jean-Pierre Levain2
Estimated H-index: 2
,
Philippe Le Borgne1
Estimated H-index: 1
,
Arnaud Simard1
Estimated H-index: 1
Les recherches menees par l’Observatoire de l’ecole rurale ont mis en evidence une « relative degradation» des trajectoires scolaires des eleves des colleges ruraux compares a ceux des etablissements urbains ou periurbains. Nous abordons cette question, sous l’angle de la psychologie cognitive, en focalisant notre recherche sur la resolution de problemes a l’interieur du champ conceptuel de la proportionnalite et des problemes d’agrandissement et d’echelle.L’exploitation d’un questionnaire, cons...
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Gerald W. Meisner2
Estimated H-index: 2
,
Harol Hoffman2
Estimated H-index: 2
,
Mike Turner2
Estimated H-index: 2
With nearly one in five college students taking at least one course online, with nearly every major college and university offering courses and/or programs online and with a growing number of citizens in the work place wanting and needing education in ways which fit their work and personal schedules, e-learning is becoming more important and ubiquitous each year. The supply (courses) is there in many disciplines; the demand (students and non-students) is there. The unanswered question is: How go...
5 Citations
Published on Feb 1, 2002in Studies in Higher Education 2.32
Anton E. Lawson41
Estimated H-index: 41
,
Margaret A. Johnson3
Estimated H-index: 3
The Kolb learning styles and neo-Piagetian development levels of 366 students enrolled in a non-majors college biology course were assessed. Students then completed a one-semester lecture/lab course within one of two instructional methods - inquiry or expository. The predicted interaction between Kolb's thinking/feeling learning dimension and instructional method was not found. Instead, as predicted by neo-Piagetian developmental theory, the thinking/feeling dimension and developmental level bot...
22 Citations Source Cite
Published on Jan 1, 2002
Helen A. Khoury2
Estimated H-index: 2
(Northern Illinois University),
Elizabeth F. Karplus1
Estimated H-index: 1
(University of California)
+ 8 AuthorsHelen Adi1
Estimated H-index: 1
(University of California)
In this chapter, the focus of Robert Karplus’s work on students’ reasoning will be revisited. The emphasis on exploring and understanding students’ reasoning in multiplicative conceptual domains, beyond the elementary school, is central in the mathematics and science education-related work of Robert Karplus. About 30 years ago, at a time when the emphasis in mathematics and science education research was on students’ achievement test scores and related statistical group averages, Robert Karplus ...
1 Citations Source Cite
Published on Jan 1, 2002
Jane Bowyer5
Estimated H-index: 5
(Mills College),
Robert Karplus23
Estimated H-index: 23
(University of California)
The late 1950’s witnessed the beginning of two revolutions, one in science with the launch of the first space satellite, and the other in education with the launch of a major paradigm shift in the teaching of elementary science. The two were intimately connected. The Soviet Union’s dramatic launch of a satellite prompted politicians, educators, and scientists to focus on the lack of a scientifically literate public in the United States and its implications for national security and scientific pr...
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Published on Jan 1, 1998
Dean Zollman (University of Nebraska–Lincoln), N. Sanjay Rebello (University of Nebraska–Lincoln)
Analog and mixed signal integrated circuits are tested using the modified Volterra series to model the integrated circuit being tested. An adaptive algorithm, for example, least mean square or Kalman, is used to determine to coefficients of the Volterra series. The coefficients are then used to calculate the THD and SNR.
Published on Aug 1, 1994in Child Development 3.78
Ian Spence24
Estimated H-index: 24
(University of Toronto),
Peter Krizel1
Estimated H-index: 1
(University of Toronto)
Children ranging in age from 9 to 13 years made judgments of proportion with a variety of graphical elements in 2 experiments. Younger children can be misled by irrelevant dimensions of objects used to portray magnitudes and proportions, but older children make their judgments like adults, ignoring or accommodating the extra dimensions. Although the psychophysical function for older children and adults is approximately linear, closer inspection reveals a complex pattern of bias that is not captu...
16 Citations Source Cite
Published on Jan 1, 1993
The purpose of this paper is to communicate some of the findings from our investigations of elementary school students and their teachers as they worked with microcomputer based labs (MBLs). This study is drawn from a three year curriculum research and development project in which we explored the feasibility of extending MBL technologies from their current place in colleges and secondary schools into the realm of the elementary classroom. We have grown to appreciate the immense potential of MBLs...