初中学生都是一个个生动活泼的生命体,他们对数学学习有其依赖的一面,但也有其独立的一面。而在一定的时段也极为希望自己去独立学习,成为主动求知、主动探索独立体。但由于处于设计者、组织者、引导者、合作者地位的老师经常性地越位,使学生不可能去予以独立。教学实践则让我们清醒地意识到:再不去根本扭转这样的局面,学生则永远也享受不到学习的快乐。要让学生自主探求数学王宫的奥秘,必 Junior high school students are a lively body of life, they have a dependent on mathematics learning side, but also has its own side. In a certain period of time also very much hope that they go independent study, become active knowledge, take the initiative to explore the independent body. However, due to the teachers, designers, organizers, guides, collaborators, teachers often offside, so that students can not be independent. Teaching practice makes us soberly aware: not to fundamentally reverse this situation, students will never enjoy the joy of learning. To allow students to explore the mysteries of the mathematical palace independently, must