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Factors Contributing to Problem-Solving Performance in First-Semester Organic Chemistry
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Lopez, Enrique J.; Shavelson, Richard J.; Nandagopal, Kiruthiga; Szu, Evan; Penn, John – Journal of Chemical Education, 2014
Problem solving is a highly valued skill in chemistry. Courses within this discipline place a substantial emphasis on problem-solving performance and tend to weigh such performance heavily in assessments of learning. Researchers have dedicated considerable effort investigating individual factors that influence problem-solving performance. The…
Descriptors: Organic Chemistry, Performance Factors, Academic Achievement, Problem Solving
Upper Elementary School Children's Understanding and Solution of a Quantitative Problem inside and outside the Mathematics Class
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Dewolf, Tinne; Van Dooren, Wim; Verschaffel, Lieven – Learning and Instruction, 2011
We confronted 151, 5th and 6th elementary grade pupils with a quantitative problem in a mathematics or religion class, to examine the influence of the context on pupils' understanding and solution of such problems inside and outside the mathematics class. Pupils were first asked to solve a problem about fair sharing either during a mathematics or…
Descriptors: Mathematical Models, Grade 5, Grade 6, Problem Solving
Representations of the Human Circulatory System
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Lopez-Manjon, Asuncion; Angon, Yolanda Postigo – Journal of Biological Education, 2009
There is no agreement about the robustness of intuitive representations of the circulatory system and their susceptibility to change by instruction. In this paper, we analyse to what extent students with varying degrees of biology instruction and different ages (High School Health Science and Social Science students and first and final year…
Descriptors: Physiology, Anatomy, Human Body, Psychology
An Extensive Analysis of Preservice Elementary Teachers' Knowledge of Fractions
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Newton, Kristie Jones – American Educational Research Journal, 2008
The study of preservice elementary teachers' knowledge of fractions is important because fractions are notoriously difficult to learn and teach. Unfortunately, studies of preservice teachers' fraction knowledge are limited and have focused primarily on division. The present study included all four operations to provide a more comprehensive…
Descriptors: Preservice Teacher Education, Preservice Teachers, Knowledge Base for Teaching, Word Problems (Mathematics)
Framing the Problem: Effects of Wording on Children's Statistical Inferences.
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Ng, Sik Hung; Pipe, Margaret-Ellen; Beath, Bruce; Holton, Derek – Educational Psychology: An International Journal of Experimental Educational Psychology, 1999
Examines how the wording of statistical problems affects 11-12 year old children's answers. Ninety-six children were given statistical problems on two statistical concepts (base-rate and the law of large numbers). Indicates that the children had a high level of statistical intuition and knew when to reason statistically. (CMK)
Descriptors: Early Adolescents, Foreign Countries, Higher Education, Intermediate Grades
Developing Number Sense: An Intervention Study in Grade 7.
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Markovits, Zvia; Sowder, Judith – Journal for Research in Mathematics Education, 1994
Examined the effects of intervention in the instruction of 12 male seventh-grade students for the purpose of developing number sense. Results indicate that after instruction students were more likely to use strategies to solve number magnitude, mental computation, and computational estimation problems that reflected number sense. (Contains 50…
Descriptors: Cognitive Development, Cognitive Style, Computation, Estimation (Mathematics)