《义务教育数学课程标准》充分强调数学知识的实际意义和实用价值,培养学生解决实际问题的意识和能力,更多地强调学生用数学的眼光从生活中捕捉数学信息,运用数学知识分析生活现象,解决生活问题。根据儿童的心理需求和教育教学的规律,要想让学生学习得轻松,知识掌握得牢固,只有让数学学习建立在学生的认知发展水平和已有的知识经验基础上,再加之与生活紧密联系,才能真正掌握数学知识。现实世界是数学的丰富源泉,数学源于生 “Standard of Compulsory Education Mathematics Curriculum” fully emphasizes the practical significance and practical value of mathematical knowledge, cultivate students’ awareness and ability to solve practical problems, more emphasis on students using mathematics to capture mathematical information from life, using mathematical knowledge to analyze the phenomenon of life , Solve the problem of life. According to the psychological needs of children and the law of education and teaching, in order to make students easy to learn, knowledge firmly grasp, only to make mathematical learning based on the level of cognitive development of students and the existing knowledge and experience, combined with close living Contact, in order to really master the mathematical knowledge. The real world is a rich source of mathematics, mathematics from students