在物理教学的过程,通过大量的习题来培养学生的应试能力,往往事倍功半,效果不理想.实践证明,在给学生上复习课时,不能简单地罗列概念和知识点,更不能通过大量的习题加重学生学习的负担,在平时的教学中应教会学生思考问题、分析问题,让学生掌握解题方法,以正确的思维方式去应付千变万化的物理问题.在物理问题中包含着许多“变”与“不变”的因素,从某种意义上讲,认识到“变”与“不变”能够找到正确解决问题的入手点. In the process of physics teaching, through a large number of exercises to develop students’ ability of examination, they often do more with less, the effect is not ideal.Practice has proved that when giving students a review of the class, you can not simply list the concepts and points of knowledge, but also can not be aggravated by a large number of exercises The burden of student learning, teaching in peacetime should teach students to think about problems, analyze problems, enable students to master problem-solving methods, with the correct way of thinking to deal with ever-changing physical problems in the physical problem contains many In a certain sense, recognizing that “change ” and “change ” can find the starting point for the correct solution to the problem.