初中学生思维正处于具体形象思维向抽象逻辑思维过渡的阶段,其中形象思维仍起重要作用,抽象思维正在发展。心理学研究表明:人们认识事物存在着知觉优先的倾向。演示实验是教师在课堂上结合教学内容做的演示给学生看的实验。它在物理教学特别 The thinking of junior middle school students is in the stage of transition from concrete image thinking to abstract logical thinking, in which image thinking still plays an important role and abstract thinking is developing. Psychology studies show that people have a tendency to perceive perceptions as a priority. Demonstration experiment is the experiment that the teacher shows in the classroom with the teaching content. It’s special in physics teaching