初中数学教材中几何概念定义方式的变化——以新旧人教版教材为例

从认知心理学的角度对新旧教材中几何概念的定义方式进行比较,可以看出新教材在几何概念的定义方式上主要有4种变化：用直观图形代替文字描述;变描述型定义为发生型定义;精炼概念;放宽了概念的决定性属性组等。依据这些变化,对教师的概念教学提出了些许有益的建议。

The Definition Pattern Changes of Geometric Concept on the Junior High School Mathematics Textbook

The definition means of the geometric concept were compared textbooks from the perspective of cognitive psychology, the author thinks that there in the old and new are some changes in the definition means of the geometric concept, as Instead of using an intuitive graphical text description; Descriptive definitions become the occurrence-type definitions; To make the concept has become more refined; Relaxation of the concept of a decisive attribute group and so on. Based on these changes, I hope it can make a bit of useful suggestions in the concept of the teaching of teachers.