教具的设计与自制是中学物理实验教学研究的一个重要内容.目前,它已在国内外受到了重视.自制教具可以弥补教具之不足,提高实验教学效果.目前,我国许多中学尤其是农村中学实验室设备简陋,教学仪器缺乏,不能很好地完成教学大纲中规定的实验项目.由于客观条件的限制,完全依靠购置厂家生产的仪器是不能改变这种状况的,自制教具则是改变这种状况的重要措施.实践 The design and self-control of teaching aids is an important part of middle school physics experimental teaching research. At present, it has been paid attention at home and abroad. Self-made teaching aids can make up for the lack of teaching aids and improve the effectiveness of experimental teaching. At present, many middle schools in China, especially rural middle schools Due to the lack of equipment in the room and the lack of teaching equipment, the experimental projects specified in the syllabus cannot be completed well. Due to the limitation of objective conditions, relying solely on the equipment purchased by the manufacturers cannot change this situation. Self-made teaching aids are to change this situation. Important measures. Practice