数学教学一贯是以教师、课堂、书本为中心的,课堂教学是一种固定不变的模式,即复习新课-讲授新课-练习巩固。即使在学习环节中注重了“预习”,也是为了更好地“讲授新课”,为了更好、更快地让学生接受“新知”。但久而久之,客观上导致了学生思维的依赖性和惰性,因而也就根本谈 Teaching mathematics has always been teachers, classrooms, books as the center, classroom teaching is a fixed pattern, that is, review of the new lesson - teaching a new lesson - to practice consolidation. Even in the learning session focuses on the “preview”, but also to better “teach the new lesson”, in order to better and faster to enable students to accept “new knowledge.” However, as time passes, objectively leads to the dependence and inertia of the students' thinking, and therefore also to the fundamental