《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。”为此,数学教学活动要从学生的生活实际出发,激发学生的积极参与意识,在解决数学问题中深化知识,培养学生的应用知识意识, The 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 by providing them with opportunities to fully engage in math activities. In the process of independent exploration and cooperation and communication, we should really understand and master the basic knowledge and skills of mathematics, mathematical ideas and methods, and acquire a wide range of experience in mathematics activities. ”Therefore, mathematics teaching activities should start from the students’ actual conditions and inspire students Of the active participation in awareness, solve problems in mathematics to deepen knowledge, develop students’ knowledge of applied knowledge,