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在小学阶段的数学教学中,运算定律是很重要的内容。定律是个抽象概念,处于小学阶段的学生对抽象概念的理解还不能达到完全认知的水平,对定律的理解和应用会存在一定的困难。教师如果能够借助几何图运算进行教学,使学生了解定律的几何背景,对学生掌握和应用定律会有很大的帮助。借助几何图形描述和分析问题,可以把复杂抽象的数学定律及概念简单化、具体化、形象化,对小学阶段的学生理解和掌握数学运算定律有很大的帮助,同时也使教师的教学变
In the elementary school mathematics teaching, the law of operation is very important content. Law is an abstract concept. Students in primary school can not reach the level of complete understanding of abstract concepts. There are certain difficulties in the understanding and application of the law. If teachers can make use of geometrical figure teaching to make students understand the geometric background of law, it will be very helpful to students to master and apply the law. Describe and analyze the problem with the help of the geometry, can simplify the complex abstract mathematical laws and concepts, specific, visualization, the students in primary school to understand and grasp mathematical laws of great help, but also make the teaching of teachers change