Abstract
The development of mathematical thinking has been emphasized in math education. However, there are many knowledge persons who are of opinion that current state of student's mathematical thinking is still low. Therefore, educational materials that for enhances student's mathematical thinking ability suitable for student is needed. This study aimed to evaluate "Math-Speed" that was developed by Murakawa (2012) as educational materials for training mathematical thinking. In this study, there are three points to evaluate as follow. 1,Correlation between the score of Math-Speed and student's mathematical thinking scores. 2,Comparison of mathematical thinking scores before and after using Math-Speed. 3, Comparison of mathematical thinking scores between experimental group and control group. As a result of this study, we found that "Math-Speed" has a effect for mathematical thinking of lower level student.
