《小学数学课程标准》指出:数学教学活动必须建立在学生的认知发展水平和已有的知识经验基础之上。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。数学教学要在有限的教学时间内,提高课堂教学效率,必须充分发挥学生的主体作用,让学生全方位参与数学学习过程。 Primary Mathematics Curriculum Standard states: Mathematics teaching activities must be based on the students’ level of cognitive development and existing knowledge and experience. Teachers should stimulate students’ enthusiasm for learning and provide students with opportunities to fully engage in math activities so as to help them understand and master basic math knowledge and skills, mathematical ideas and methods, and acquire extensive math activities during their own exploration and cooperation. experience. In order to improve the efficiency of classroom teaching within a limited teaching time, mathematics teaching must give full play to students’ main role and make students participate in mathematics learning process in an all-round way.