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Direct linkBurns-Childers, Annie; Vidakovic, Draga – International Journal of Mathematical Education in Science and Technology, 2018
The purpose of this study was to gain insight into 30, first year calculus students' understanding of the relationship between the concept of vertex of a quadratic function and the concept of the derivative. APOS (action-process-object-schema) theory was applied as a guiding framework of analysis on student written work, think-aloud and follow up…
Descriptors: Calculus, Mathematics Instruction, Mathematical Concepts, Protocol Analysis
Cronje, J. C.; Fouche, J. – Computers & Education, 2008
While different approaches to evaluation will yield different results, depending on the purpose of the evaluation this article describes an evaluation approach that was aimed at investigation of the mental models of users of the programme. The study was driven by questions about the differences in mental models of the instructional designers and…
Descriptors: Science Instruction, Scientific Concepts, Energy, Evaluation Methods
