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省略号在数学题中时有出现,它是数学教学的一个难点,且又不便于集中教学,更加造成某些困难,为了提高学生的解题能力和抽象思维能力,有必要加强对省略内容的教学。本文特以省略造成的困难、如何攻克省略的难点谈谈我的教学理见。一、省略造成的困难根据学生的心理特征,题中省略给他们造成如下四种困难: 理解性的困难、构造性的困难、判断性的困难和运算性的困难。例1 解方程:3~2·3~4·3~6·…·3~2·=81~(14) 省略的内容中,往往隐含着一些重要的数量关系,这就给学生造成了理解性的困难,即
The ellipsis has appeared in mathematics problems. It is a difficult point in mathematics teaching, and it is inconvenient to focus on teaching. It also causes some difficulties. In order to improve students’ problem solving ability and abstract thinking ability, it is necessary to strengthen the teaching of omitted content. . This article specifically discusses my teaching sense with the difficulty caused by omission and how to overcome the difficulty of omission. 1. Difficulty caused by omission According to the students’ psychological characteristics, the omission in the title poses four difficulties for them: understanding difficulties, constructive difficulties, judgmental difficulties, and operational difficulties. Example 1 Solution equation: 3~2·3~4·3~6·...·3~2·=81~(14) In the omitted content, some important quantitative relationships are often implicated. This causes students to Understanding the difficulty of sex, ie