演示实验贯穿于整个初中物理的教学,如何让所有同学能够清晰的观察到实验器材、实验现象、实验数据,也就是说实验的可见度是课堂演示实验是否有效的关键。区别于分组实验,演示实验要更具有可见度,效果要更明显,才能达到应有的效果。 Demonstration experiment runs through the entire junior middle school physics teaching, how to make all students can clearly observe the experimental equipment, experimental phenomena, experimental data, that is, the visibility of the experiment is the key to the effectiveness of the classroom demonstration experiment. Different from the grouping experiment, the demonstration experiment must be more visible and the effect must be more obvious in order to achieve the desired effect.