Mathematical Ratio & Proportion
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http://www.usca.edu/math/~mathdept/hsg/ProportionPaperV03.html  


Henry Gurr  
An experimental attempt to increase student understanding of topics in physics that involve mathematical proportion encountered an unexpected result: Students showed higher than normal difficulty learning the higherorder generalization that the physics equations involving proportion: 1) Are elaborations of one general equation. (Example y = mx, where y & x are the proportional variables) 2) Follow a consistent pattern wherein the constant m is nearly always an “invented” new concept defined by the ratio m =y/x. This article discusses the nature of this barrier and how to achieve “breakthrough” using a teaching method called the “Table of Proportional Quantities”.  


Levels:  College 
Languages:  English 
Resource Types:  Articles 
Math Topics:  Basic Algebra, Ratio/Proportion 
Math Ed Topics:  Specific Math Concepts/Techniques 
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