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点的轨迹是初中几何教材的难点,如何突破这一难点,是我们从事初中几何教学的老师应该重视和研究的一个课题。 根据我的体会这一单元教材的难点主要表现为三点:一是这一单元的主要概念——点的轨迹的定义是一个比较抽象的概念,所以学生理解和掌握这一概念的时候比较困难一些。二是轨迹的概念是平面几何第一次引入运动观点,学生一时难以适应。三是这一部
The trajectory of the point is the difficulty of the junior high school geometry textbook. How to overcome this difficulty is a subject that we should pay attention to and study in the teaching of junior high school geometry. According to my experience, the difficulty of this unit of teaching material is mainly reflected in three points: First, the main concept of this unit is that the definition of the point trajectory is a more abstract concept, so it is more difficult for students to understand and master the concept. some. Second, the concept of trajectory is the first time that plane geometry introduces motion viewpoints, and students are difficult to adapt. The third is this department