物理学是一门以实验为基础的学科,现行中学物理教材中,对学生实验能力的要求比以前大有提高。能不能较好地开展学生实验,对培养学生学习物理的兴趣,培养学生实验能力、观察能力和思维能力以及深刻理解物理概念和规律,对提高物理教学质量有着直接的关系。然而,根据现在的教材安排,学生自己动手做实验还受到时间、器材的制约,尤其象农村乡镇中学,实验器材不足,要开出所有的演 Physics is a discipline based on experiments. In the current middle school physics textbooks, the requirements for students’ experimental ability have been greatly improved. Whether students can experiment well, cultivate students’ interest in learning physics, cultivate students’ experimental abilities, observation abilities, and thinking abilities, as well as profoundly understand physical concepts and laws, has a direct bearing on improving the quality of physics teaching. However, according to the current teaching materials, students themselves are also subject to the constraints of time and equipment. In particular, in rural township middle schools, there is a shortage of experimental equipment to perform all the exercises.