一、做实验,激活探究欲望,培养动手能力实验是进行探究的重要途径,很多物理现象,如果补充一些简单的实验,让学生亲自动手去试一试,可以激活学生探究欲望,从而体验到物理过程的内在美和探究乐趣。如讲“声现象”时,遇到这样一道题:给开水瓶灌水时,发出声音的音调是逐渐变高还是逐渐变低?学生通过实验得出结论:音调变高了。然后教师又引导学生分析:声音是靠空气的振动发出的,当往水瓶里灌的水越多,则空气柱越短,空气 First, to do experiments to activate the desire to explore and develop practical ability Experiment is an important way to explore, many physical phenomena, if you add some simple experiments, let students try it yourself, you can activate students to explore the desire to experience the physical The inner beauty of the process and the exploration of pleasure. Such as speaking “sound phenomenon ”, encountered such a question: When the water bottle is filled, the tone of the sound is getting higher or lower gradually? Students through experiments concluded that: the pitch is higher. Then teachers and guide students Analysis: sound is emitted by the vibration of the air, when the water into the water bottle more, then the shorter the air column, the air