《数学课程标准》指出:现代数学应从学生的生活经验和已有的知识背景出发,向他们提供充分的从事数学活动和交流的机会,帮助他们在自主的探索过程中真正理解和掌握基本的数学知识与技能,同时获得广泛的数学活动经验;教者在数学教学活动中,要紧密联系学生的生活实际,从学生的生活经验和已有知识出发,创造生动有趣的情境,引导学生开展 Mathematical Curriculum Standards states that modern mathematics should give students adequate opportunities to engage in math activities and exchanges based on their life experiences and existing knowledge backgrounds so that they can truly understand and master basic mathematics in their own exploration process Knowledge and skills, at the same time access to a wide range of experience in math activities; teaching activities in mathematics, teachers should be closely linked to students ’actual life, from the students’ life experience and existing knowledge, to create a vivid and interesting context, and guide students to carry out