在初中几何题目中,我们常会遇到中点、直径、垂直、平行线、角平分线等条件,教师在教学中,把这些基本条件的一般用法进行归纳、总结,传授给学生,必然会调动学生的学习兴趣,增强学习自信心,对开拓思路,提高解题能力,增进知识间的横纵向联系都大有裨 In the junior high school geometry, we often encounter conditions such as the midpoint, diameter, vertical, parallel lines, and angle bisector. In the teaching, the teacher generalizes and summarizes the general usage of these basic conditions and imparts it to the students. It will inevitably mobilize the students. Students’ interest in learning, self-confidence in learning, and the ability to develop ideas, improve problem-solving abilities, and enhance the horizontal and vertical connections between knowledge