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几何概念是几何图形的本质特征在人脑中的形成与反映,是抽象思维的基本单位。笔者结合教学实践,认为可以从四个教学策略入手,一是创设数学情境,让学生获得对几何概念的充分感知;二是注重学生动手操作,获得几何概念的表象;三是让学生正确理解、表征几何概念;四是巩固概念,形成体系,加深对几何概念的理解,从而有效地帮助学生形成几何概念。
The concept of geometry is the formation and reflection of the essential features of geometry in the human brain. It is the basic unit of abstract thinking. The author combines the teaching practice, that can start from the four teaching strategies, one is to create mathematical situations, allowing students to fully understand the concept of geometry; the second is to focus on student hands-on operation to obtain the concept of geometric concepts; the third is to enable students to correctly understand, Characterization of geometric concepts; Fourth, to consolidate the concept of forming a system to deepen the understanding of the concept of geometry, so as to effectively help students form a geometric concept.