物理是以观察和实验为基础的学科,具有很强的实践性,物理实验在物理学的产生和发展过程中具有重要的地位。在物理课堂教学中,课堂演示实验能调动学生积极、主动地参与到课堂学习中,通过对演示实验现象的观察、分析和归纳,能帮助学生更容易更快地理解物理概念和规律,掌握和运用物理知识解决实际问题,还能培养学生的观察能力、思维能力、探索精神以及良好的学习方法,也是提高学生科学探究技能和学习能力的重要手段之一。2013年四川省实施新课程标准后,要突出三维要求,注重知识形成过程,应重视学生设计和完成实验的能力,达到学 Physics is based on observation and experiment-based disciplines, with strong practicality, physics experiments in the production and development of physics has an important position. In physics classroom teaching, classroom demonstration experiments can mobilize students actively and actively to participate in classroom learning. By observing, analyzing and summarizing demonstration experiment phenomena, students can understand physical concepts and laws more easily and quickly, The use of physical knowledge to solve practical problems, but also to develop students ’observation skills, thinking skills, exploration and good learning methods, but also to improve students’ scientific inquiry skills and learning ability of one of the important means. After the implementation of the new curriculum standard in Sichuan Province in 2013, we should highlight the three-dimensional requirements, pay attention to the process of knowledge formation, attach importance to students’ ability to design and complete experiments, and achieve learning