物理是以观察实验和事实为基础的自然科学，物理实验能够充分的显现物理的魅力[5]。在本文中笔者运用实验法运用生活中常见的一些物品（增加学生的熟悉感）设计了一些操作简单，现象明显的演示实验；运用文献研究法，对前辈所设计的实验进行优化，使其更加符合我国的教育现状，并尽力平衡教师教学目标的完成和学生学习兴趣的提高二者之间的关系。最后根据设计的实验，在高中电学、力学和运动学的重难点上设计了突出演示实验的教学设计，并通过模拟法结合相关教案对演示实验在物理课堂中不可替代的作用进行了阐述，对现在高中物理课堂中普遍存在的问题提出自己的建议。

Physics is a natural science based on observation of experiments and facts. Physical experiments can fully reveal the charm of physics. In this paper, the author uses experimental methods to apply some common items in life (increasing the students' familiarity) to design some demonstration experiments with simple operation and obvious phenomena. Using the literature research method, the experiments designed by the predecessors are optimized to make them more In line with the current situation of education in China, and try to balance the relationship between the completion of teachers' teaching goals and the improvement of students' interest in learning. Finally, according to the design experiment, the teaching design of the outstanding demonstration experiment is designed on the difficult points of high school electricity, mechanics and kinematics. The irreplaceable role of the demonstration experiment in the physics classroom is expounded through the simulation method combined with the relevant teaching plans. Nowadays, the problems that are common in the high school physics classroom put forward their own suggestions.