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观察近几年的中考数学试卷,很多题目都是数学教材中的例题或者练习题演变而来的.但是,为什么很多学生遇到这样的题目仍然为难呢?其实这与我们平时的教学模式存在很大关系.教学中,我们对一些典型问题应该进行适当的延伸、拓展和变式训练,这对提高学生的解题能力有极大的帮助.本文拟以
In recent years, the examination of mathematics papers in the examination, many questions are math textbooks in the sample or practice evolved from, but why many students encountered such a problem is still embarrassing? In fact, this and our usual teaching mode exists Big relationship.Teaching, we should be some of the typical problems should be appropriate to extend, expand and variant training, which improve students’ ability to solve problems is of great help.This paper is intended to