一、引言传统的牛顿第二定律习题课,主要的上课思路就是告诉学生这个知识应该怎么做,然后辅助多个例题,练习,让学生掌握住这个知识点。这样存在的问题是学生之前不知道这个知识点,可能就会有相当一部分学生听不懂,接着题目也不会做,就算听懂了,印象也不深刻,过一段时间再来做这 I. Introduction The traditional Newton’s second law exercises class, the main idea of ​​the class is to tell students how to do this knowledge, and then assist in multiple examples, exercises, so that students master this knowledge point. This problem exists before the students do not know this point of knowledge, there may be a considerable number of students do not understand, then the subject will not do, even if understood, the impression is not profound, do it again over time