学习几何,多做习题是必不可少的.有句话说得好:学数学不做习题,等于进宝山不取宝.但“题海战术”对于学生的发展又极为不利,且茫茫题海,做题难免很盲目.那么,如何才能使学生既减少题量,又能有效地打开思路呢?笔者认为,“归纳”是学几何的一个好方法.下面举例说明. Learning geometry and doing more exercises are indispensable. There is a good saying: learning mathematics does not do exercises, which means that you don’t take Baoshan into Baoshan. However, the “sea tactics” is extremely unfavorable for the development of students and it is difficult to learn. In the sea, it’s hard to avoid doing the questions blindly. So, how can we make students reduce the number of questions and effectively open the way of thinking? The author thinks that “induction” is a good way to learn geometry. The following examples illustrate.