理想气体状态方程PV/T=C教学的好坏对学生掌握气体性质以及进一步学习和生产实践都有重要意义。本文想从三个方面谈如何通过这部分教学调动学生的学习积极性问题。一、通过实例和实验引发学生的兴趣学生在初中时就知道潜水艇的潜水和上浮是靠改变自身的重力G来实现的。教师可以此提出潜水艇是如何改变自身重力的问题,并通过挂图突出说明利用压缩空气排出水舱中的水使潜水艇所受的浮力F_浮< The ideal gas state equation PV/T=C teaching is of great importance to students’ understanding of gas properties and further learning and production practices. This article wants to discuss how to use this part of the teaching to mobilize the students’ enthusiasm for learning. First, through the examples and experiments triggered students’ interest Students in junior high school to know that the submarine diving and floating is achieved by changing their own gravity G. The teacher can ask the question of how the submarine changes its gravity and highlight the buoyancy of the submarine by using the compressed air to discharge water from the tank.