用教材教是新的教学观。数学是一门与生活紧密联系的应用学科,在教学中将教材生活化,同时根据“建构主义”理论帮助学生将数学内容结构化是小学数学教师的基本任务,从而提高小学数学教学的有效性。 Teaching materials is a new teaching concept. Mathematics is an applied subject closely related to life. It is vital to the teaching of mathematics in teaching and to help students to structure mathematics according to the theory of “Constructivism ” so as to improve the elementary mathematics teaching in elementary schools Effectiveness.