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Download full textBüscher, Christian – International Electronic Journal of Mathematics Education, 2021
Teachers do not directly implement new teaching materials, but rather adapt them. For changing teaching practice, research requires more insights into these adaptions. This study draws on the Theory of Instrumental Genesis to describe the ways teachers adopt the percentage bar model to create different learning opportunities. The results of the…
Descriptors: Media Adaptation, Instructional Materials, Models, Visual Aids
