很多时候,为了更加形象地说明物理问题,物理课堂教学的开展需要教具的辅助.然而,由于时间、条件等因素的限制,在多数的中学课堂,教具的使用频率很低,教师结合实际教学需要自制教具就更是少之又少.不过,只要教师用心去观察,还是可以发现在很多小的细节上,动手做教具并应用到课堂,可以大大提高教学效果和效率. In many cases, in order to more clearly illustrate the physics problems, the development of physics classroom teaching requires the aid of teaching aids. However, due to the constraints of time, conditions and other factors, the frequency of use of teaching aids is low in most middle school classrooms, and teachers need to combine practical teaching needs. Self-made teaching aids are even rarer. However, as long as the teachers carefully observe, they can still find that in many small details, hands-on teaching aids are applied to the classroom, which can greatly improve teaching effectiveness and efficiency.