在初中阶段的物理实验中,其中大部分都是演示实验,演示实验不仅是物理教学活动的重要内容,更是教师开展教学活动的有效手段。可以说,演示实验在物理教学中扮演着非常重要的角色。在本文中,笔者就结合物理教学实际,简单总结了演示实验在物理教学中的一些重要的作用,希望通过演示实验重要性的阐述来激发起广大师生对演示实验的重视。 In the junior middle school physics experiments, most of them are demonstration experiments. The demonstration experiment is not only an important part of physical teaching activities, but also an effective means for teachers to carry out teaching activities. It can be said that demonstration experiments play a very important role in physics teaching. In this paper, the author combines the physics teaching practice, simply summarizes the demonstration experiment in physics teaching some of the important role, hoping to demonstrate the importance of experiments to inspire the majority of teachers and students attach importance to the demonstration experiment.