在传统的数学教学中,学生是被动的接受者,很少有自主调控的机会。现代教学论认为:学生是学习的主体,是具有主观能动性的人,不是消极的容器。学生接受教师的教,都要通过自身的内化活动来实现。从这个角度看,教师在起主导作用的同时,必须最大限度地发挥学生的主体作用,创设一切条件,尽可能增大学生的学习“自由”。即在数学课堂教学中要让学生有自主活动的“自由”,自己学,自己评,长知识,长能力,使必须掌握的知识变成对个人来说是 In the traditional teaching of mathematics, students are passive recipients, few opportunities for self-regulation. The modern teaching theory holds that students are the main body of learning, those who have the initiative and are not passive containers. Students to accept the teaching of teachers, through their own internalization activities to achieve. From this perspective, teachers play a leading role at the same time, we must maximize student’s main role, to create all the conditions, as far as possible to enhance students’ learning “freedom.” That is, in the classroom teaching of mathematics, students should have the “freedom” of autonomous activities, self-study, self-evaluation, long-term knowledge and long-term ability so that the knowledge that must be mastered becomes