Abstract:The mathematics of the middle school has an important place in developing of algebraic thinking. Middle grades correspond to transition from arithmetic to algebra. According to Thompson and Smith (2007), quantitative reasoning provides a smooth transition from arithmetic reasoning to algebraic reasoning as a glue. Sixth grade and verbal problems are important in developing quantitative reasoning. On the other hand, As Harel ( 2008) emphasized, the important thing in problem solving is the ways of thinking rath… Show more
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