人教版物理教材中的教材资源主要包括课本中的插图、课后习题、教材中的思考与讨论、相关物理规律的演示实验、STS、科学漫步和科学足迹等等。人教版教材物理选修3—5第十六章第四节“碰撞”一节中,教材在介绍完碰撞的几种类型后,附了一道思考与讨论题,题目以一维弹性碰撞为例,从理论上分析两个物体在不同情况下碰撞前后的速度变化情况。本文就教材中的思考与讨论展开,从列式、推导过程、得出结论、结论分析到例举典型题,帮助学生 PEP textbooks include illustrations in textbooks, after-school exercises, thinking and discussion in textbooks, demonstrations of related physical laws, STS, scientific walks and scientific footprints. People's Education Edition textbook physics elective 3-5 chapter XVI fourth section “collision ” section, the textbook after the introduction of several types of collision, attached to a thought and discussion questions, subject to one-dimensional elastic collision As an example, theoretically analyzes the changes of the velocity of two objects before and after the collision under different conditions. This article starts from the thinking and discussion in the textbook, derives the process from the formula, derives the conclusion, the conclusion analyzes to illustrate the typical questions and helps the students