自主学习能力是学生面对未来社会必备的能力,也是当前素质教育的培养目标之一。《数学课程标准》更是倡导“教师应激发学生的学习积极性,向学生提供充分从事数学活动的机会,帮助他们在自主探索和合作交流的过程中真正理解和掌握基本的数学知识与技能、数学思想和方法,获得广泛的数学活动经验。” Autonomous learning ability is the ability of students to face the future social needs, but also one of the current training objectives of quality education. “Mathematics Curriculum Standard” is even more advocated. “Teachers should arouse their enthusiasm for learning and provide students with opportunities to fully engage in math activities to help them truly understand and master basic math knowledge and skills during their own exploration and cooperation and exchange, Mathematical ideas and methods, gain extensive experience in math activities. ”