新的数学课程标准指出:教师应激发学生学习的积极性,向学生提供充分接触数学的机会,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、数学思想与方法,获得广泛的数学活动经验。学生是学习的主人,教师是数学学习的组织者、引导者和合作者。因此, The new mathematics curriculum standards point out that teachers should stimulate the enthusiasm of students and provide students with full access to mathematics so that they can truly understand and master basic math knowledge and skills in their own exploration and cooperation and exchange of ideas. , Gain extensive experience in math activities. Students are the masters of learning, teachers are the organizers, guides and collaborators of mathematics learning. therefore,