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初中物理就其内容来讲主要是经典物理学中最基本、最简单、与实际联系最密切的部分,其主要概念,规律都是在实验基础上建立起来的,物理实验本身就是教学内容的重要组成部分。理想的物理实验教学过程是在教师的指导下,学生一边实验,一边观察、总结,从而获得物理知识。由于客观条件的限制,不可能所有的实验都由学生亲自动手来做,还有一部分实验是由教师做给学生看。不难发现演示实验是学生集中地获得物理现象的主要来源之一。因此在物理教学中要加强演示实验的有效教学是很有必要的。
In terms of its content, junior middle school physics is mainly the most basic and simplest part in classical physics. The main concepts and laws are all established on the basis of experiment. Physics experiment itself is the important content of teaching component. Ideal physics experiment teaching process is under the guidance of teachers, students experiment, while observing, summarizing, in order to obtain physical knowledge. Due to the objective conditions, it is impossible for all experiments to be done by the students themselves, and some experiments are done by the teachers for the students. It is not difficult to find that demonstration experiments are one of the main sources of students’ concentrated access to physical phenomena. Therefore, it is necessary to strengthen the effective teaching of demonstration experiment in physics teaching.