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课本例题、习题是经过专家精心遴选的,具有典型性、示范性的题目,而且具有可拓展的功能.从学生认知思维的最近发展区域,以课本习题为原型,从题设、结论及图形结构全方位、多角度的探究与联想,挖掘其蕴藏的深层内涵,可以引导学生深刻领悟解决问题的策略,优化思维品质,提升数学的思维水平.本文以苏科版《数学》九年级《对称图形——圆》中的一道习题为例,诠释如下.
Exercises are carefully selected by experts, with typical and exemplary topics, but also have the function of expansion.From the recent development of students’ cognitive thinking in the textbook exercises as the prototype, from the title, conclusions and graphics Structure all-round and multi-angle exploration and association, excavating the deep connotation of its storage can lead the students to comprehend the tactics of solving problems, optimize the quality of thinking and enhance the level of thinking of mathematics.This paper takes Su Ke edition “ninth grade of mathematics” symmetry Graphics - Circle "in an exercise as an example, the interpretation is as follows.