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Investigating Textbook Presentations of Ratio and Proportion
Conference paper   Open access   Peer reviewed

Investigating Textbook Presentations of Ratio and Proportion

M Shield and Shelley Dole
Proceedings of the 25th annual conference of the Mathematics Education Research Group of Australasia, pp.608-616
Annual Conference of the Mathematics Education Research Group of Australasia (MERGA), 25th (Auckland, New Zealand, 07-Jul-2002–10-Jul-2002)
Mathematics Education Research Group of Australasia (MERGA)
2002
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Abstract

Curriculum and Pedagogy
Many topics within the middle school mathematics curriculum connect to the concept of proportion. Interpretation of proportion situations and understanding of methods for solving proportion problems provides a structure than can be applied to other related topics. As a major resource for secondary mathematics, the extent to which popular textbooks link proportion-related topics was the focus of this study. Our analysis revealed little connectivity of ideas, confusing definitions and frequently illogical calculations. Questions are raised as to the messages texts send to students.

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