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Download full textFisher, Thomas; Nagle, Courtney; Moore-Russo, Deborah – North American Chapter of the International Group for the Psychology of Mathematics Education, 2021
This study reviews how slope is developed in expository materials across a seven-textbook series. Slope development is analyzed using a framework of five slope components to describe which components are used and connected, and by investigating accompanying levels of covariational reasoning. Findings suggest that the series describes slope from…
Descriptors: Mathematical Concepts, Textbooks, Mathematics Instruction, Textbook Content
