《课程标准》指出:学生的学习活动应当是一个生动活泼的、富有个性的过程。传统的数学课堂教学以“教师善教,学生善听”为特色,教师是学习过程的主角,这种模式导致学生在学习中越来越依赖教师,学生的自主、探究性渐渐消磨殆尽。新课程,教师要把学生的 “Curriculum Standard” points out: Students’ learning activities should be a lively and personalized process. The traditional mathematics classroom teaching is characterized by “good teacher and good student listening”, and the teacher is the protagonist of the learning process. This model leads students to rely more and more on the autonomy of teachers and students in their studies, and their explorations gradually disappear. The new curriculum, teachers should put the students