有人把拓展练习狭义的理解为在课的基本部分教学结束后,教师根据目标需要安排的小型比赛获素质练习。其实拓展练习可以在课堂教学的各个环节中运用,不同的环节部分拓展练习表现出的效果各不相同。本人通过理论与实践的探索,发现拓展练习在不同环节中的作用各不相同。 Some people have extended the practice of narrow understanding of understanding as the basic part of the lesson after the end of teaching, teachers need to be arranged according to the objectives of the small game quality practice. In fact, the expansion exercises can be used in all aspects of classroom teaching, part of the expansion exercises show different effects. Through the exploration of theory and practice, I find out that the expansion exercises have different roles in different aspects.