胡琴能发出美妙动听的声音,泉水会发出叮咚的响声,鸟儿会发出唧唧喳喳声等。声音是司空见惯的,但学生大多不会探究,这些声音是怎样产生的?通过这节课的学习、观察、讨论,得出结论——声音是由物体振动产生的,同时又培养了学生的动手实践能力、归纳概括能力、逻辑思维能力、推理能力和创新能力。在实际的教学中,我试图努力精心设计实验,增加学生动手操作能力,培养了学生探究科学知识的兴趣和能力,取得较好的效果。 Hu Qin can make a beautiful sound, the spring will send buzz bells, birds will be issued twitter. Sound is common, but most students will not explore, how do these sounds come from? Through the study, observation and discussion of this lesson, the conclusion is drawn that the sound is generated by the vibration of the object and at the same time, students are trained Practical ability, generalization ability, logical thinking ability, reasoning ability and innovation ability. In the actual teaching, I tried hard to elaborately design experiments, increase students ’abilities of hands-on operation, cultivate students’ interest and ability to explore scientific knowledge, and achieved good results.