在讲授《声音的产生》一课时,教师对教材中的鼓膜模拟实验,一般都采取用蜡纸筒、小镜子等材料组合,但实验起来很不方便。为此,笔者在原有基础上对本实验进行改进,使实验器材整体化,实验效果直观化。 一、实验材料 空易拉罐一个、可折粉饼盒 When teaching a class of “Sound Generation”, the teacher simulated the tympanic membrane in the teaching materials and generally adopted a combination of materials such as a wax paper cylinder and a small mirror, but the experiment was very inconvenient. To this end, the author based on the original to improve the experiment, the experimental equipment as a whole, the experimental effect of visualization. First, the experimental material empty cans, can be folded powder cake box