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习题教学是数学教学的重要组成部分,是课程目标达成的重要环节.在习题教学中,对具体问题背景含有的丰富内涵深入挖掘,善于抓住习题有效的教学资源,引导学生体验探究问题过程,使习题功效深化,是我们每一个数学教师值得探讨的问题.本文拟以山西省2010年中考数学25题的运用与教学为例,谈谈自己的一些体会.题目如图1,已知正方形ABCD的边CD在正方形DEFG的边DE上,连接AE、GC.(1)试猜想AE与GC有怎样的位置关系,并证明你的结论.(2)将正方形DEFG绕点D按顺时针方向旋转,使
Exercises teaching is an important part of mathematics teaching and is an important part reached in the course goal.In the exercise teaching, the rich connotation of the specific problem background is deeply tapped, and it is good at grasping the effective teaching resources of the exercises and guiding the students to experience the process of exploring problems, So that the problem of deepening the effectiveness of each one of our math teachers worth exploring.This paper is intended to Shanxi Province in 2010 twenty-seventh math exercises and teaching as an example, to talk about some of their own experience.Home in Figure 1, the known square ABCD (1) Try to guess what the relationship between AE and GC is, and prove your conclusion. (2) Rotate the square DEFG around the point D in a clockwise direction ,Make