导学案是教师编制的用于引导学生自主学习、自主探究的学习方案。近年来,导学案可谓风靡大江南北,成为许多老师教学时必不可少的工具,数学教师更是如此。然而,导学案并不是万能的,老师们在使用导学案的过程中,发现了许多问题。比如,某个数学知识点很难,学生提前预习时根本看不懂,导致他们产生恐惧感,到了课堂上,学习兴趣自然骤 Guidance case is a learning program compiled by teachers to guide students to learn independently and independently. In recent years, guided learning can be described as sweeping the river north and south, many teachers become an indispensable tool for teaching, mathematics teachers even more so. However, the guide is not a panacea, teachers in the process of using the guide, found many problems. For example, a mathematical knowledge point is difficult, students do not understand when previewing in advance, causing them to have a sense of fear, to the classroom, natural interest in learning