培养学生积极动手做、动脑思、动耳听、动口说的能力,充分发挥他们的积极性、主动性和创造性,是教师在教学实践中必须研究和探讨的一个重要课题。比较发现,预学案的应用是探索解决这一课题的有效途径之一。 It is an important subject that teachers must study and discuss in teaching practice to develop students’ abilities of doing things actively, brainstorming, listening earnestly, talking about their motivation, and giving full play to their enthusiasm, initiative and creativity. It is found that the application of pre-study case is one of the effective ways to explore and solve this problem.