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数学概念是揭示现实世界数量关系与空间形式本质属性的思维形式。几何概念是数学概念的重要组成部分,也是数学教学的基本内容之一。怎样才能有效地帮助学生建立几何概念?笔者认为,一要引导学生结合生活实例充分感知概念的基本特点,初步形成概念的表象;二要引导学生展开必要的想象,在想象中不断丰富对概念内涵的认识;三要通过组织适当的分析、比较,引导学生在交流和分享中主动完成相应的抽象,进一步把握概念
The concept of mathematics is a form of thinking that reveals the essential relations of the real world and the essential properties of space. The concept of geometry is an important part of mathematical concepts and one of the basic contents of mathematics teaching. How to effectively help students to establish the geometric concept? The author believes that one should guide students with life examples fully aware of the basic characteristics of concepts, the initial formation of the concept of the image; Second, we must guide students to develop the necessary imagination, imagination, continue to enrich the concept of connotation ; Third, we should organize appropriate analysis, comparison, and guide students to take the initiative to complete the corresponding abstraction in the exchange and sharing, to further grasp the concept