物理学是以实验为基础的自然科学,物理概念及物理规律都是借助生活基础,从实际问题中抽象、概括出来的,学生要想深刻地理解这些概念和规律,就必须经历物理知识的生成过程,可见,物理实验在帮助学生建立概念和形成规律的过程中起着不可替代的作用。初中阶段作为学生学习物理的起始阶段,因此,强化实验教学,以实验激发学生的学习兴趣,从而拉动物理课堂教学的效率就显得尤为重要。一、在实验中架设现象与本质之间的联系例如,我在教学分子的热运动时,给同桌的同学分别发放了一杯热水和一杯冷水,让他们同时向杯子里注入一滴红墨水,然后观察,学生很快就可看到热水中的红墨水立即均匀地散开,而冷水中的红墨水几乎不动,很长时间后仍然 Physics is an experimental-based natural science. Both the physical concepts and the laws of physics are based on the basis of life and are abstracted from the actual problems. If students want to understand these concepts and laws profoundly, they must experience the formation of physical knowledge Process, we can see, physical experiments in helping students to establish the concept and the formation of the law plays an irreplaceable role. As the initial stage of students ’learning physics, junior high school stage plays an important role in strengthening the experimental teaching, stimulating students’ interest in learning experimentally, and thus stimulating the efficiency of physics classroom teaching. First, the connection between the phenomena and the essence of the experiment For example, when I was teaching students’ thermal activities, I gave a cup of hot water and a glass of cold water to the students at the same table, so that they simultaneously injected a drop of red ink into the cup, Then observe that students can quickly see the red ink in hot water immediately spread evenly, while the red ink in cold water almost does not move, still a long time