演示实验是中学物理实验教学的重要组成部分,分组实验固然重要,但演示实验应发挥它的关键作用。它目标小,目的容易达到,且重点好突出。有的演示实验需刻意设计,有的则信手拈来。突破难点恰如其分。同时也是科学探究中不可缺少的科学行为。做好演示实验有利于改变学生的学习方式,能让 Demonstration experiment is an important part of physics experiment teaching in middle school. Although group experiment is important, demonstration experiment should play its key role. Its purpose is small, the purpose is easy to reach, and the key is outstanding. Some demonstration experiments need to be designed, while others come in handy. Breakthrough difficulty appropriate. It is also an indispensable scientific activity in scientific inquiry. Good demonstration experiment is conducive to changing the way students learn to make