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Download full textZeytun, Aysel Sen; Cetinkaya, Bulent; Erbas, Ayhan Kursat – Educational Sciences: Theory and Practice, 2010
Various studies suggest that covariational reasoning plays an important role on understanding the fundamental ideas of calculus and modeling dynamic functional events. The purpose of this study was to investigate a group of mathematics teachers' covariational reasoning abilities and predictions about their students. Data were collected through…
Descriptors: Mathematics Teachers, Calculus, Misconceptions, Thinking Skills
Ozmen, Ruya Guzel; Unal, Hilmi – Educational Sciences: Theory and Practice, 2008
The purpose of this study was to compare the effectiveness and efficiency of two teaching models, the expository presentation of Merrill and Tennyson's model and Gagne's model, in acquisition and maintenance of square and triangle concepts in students with mental retardation. The participants of the study were chosen from students with mental…
Descriptors: Teaching Models, Mental Retardation, Criterion Referenced Tests, Geometric Concepts
