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小学自然课《声音是怎么产生的》（下简称《声》）旨在通过教学使儿童学习到“声音是物体振动产生的”这一声学基础知识。教学中，如何彻底摆脱小学自然理科文教的注入式教学，让儿童愉快地进行实验探究而掌握知识呢？我改变教材中的验证实验为探索实验。充分发挥儿童的主体作
The elementary lesson “How Sound Produces” (“Voice”) aims at teaching children to learn the basic acoustic knowledge of “sound is generated by the vibration of an object.” In teaching, how to get rid of the implanted teaching of natural science and culture in elementary school completely, let the children happily carry on the experimental exploration and master the knowledge? I changed the verification experiment in the textbook to explore the experiment. Give full play to the main body of children