前置性学习是一堂课的开端,是学生自己摸索、理解的自学过程,也是上好一堂课的重要环节.比热容是物质的一种物理特性且概念比较抽象,学生理解起来有些困难,所以又是整个教材的难点.通过这一节的教学,笔者认识到该做的实验应让学生动手去做,即使实验失败,学生也有收获. Pre-learning is the beginning of a class, is a self-learning process that students explore and understand, and is also an important part of a good lesson.Heat-heat capacity is a physical property of matter and its concept is rather abstract, so it is difficult for students to understand it Is the difficulty of the entire textbook.Through this section of teaching, I realized that the experiment should be done by students, even if the experiment fails, students also gain.