课堂上怎样激发学生学习的欲望,关键在于教师的导,教师如何更有效的导呢?一.注意课堂中问题的设计学生认知结构的形成有一个符合逻辑的“序”──由已知到未知,由少到多,由浅入深,由简单到复杂,由低级到高级,即 How to stimulate the desire of students to learn in classroom, the key lies in the guidance of teachers, teachers how to guide more effective? A note that the formation of the problem of students in the classroom cognitive structure has a logical "sequence Known to the unknown, from less to more, from shallow to deep, from simple to complex, from low to high, that