如何搞好初中几何教学,一直是大家最关心的一个研究课题。普遍反映是:教者难教,学者难学。因此有的教师想以多取胜,大搞题海战术,其结果是适得其反。如果我们充分利用课本上的一些典型习题,沟通知识之间的内在联系进行教学就会收到事半功倍的效果。例如,我们学了三角形的中位线定理,知道三角形的中位线平行于第三边且等于它的一半。 How to do well in junior high school geometry teaching has always been one of the most concerned research topics. The general reflection is that the teacher is difficult to teach, and scholars are difficult to learn. Therefore, some teachers would like to win more than one, and do a good job of tying the sea. The result is counterproductive. If we make full use of some of the typical exercises in textbooks, the intrinsic link between communication knowledge will have a multiplier effect. For example, we learned the triangle’s median line theorem, knowing that the triangle’s median line is parallel to the third edge and equal to half of it.