新的《数学课程标准》中指出:数学教学要密切联系学生的生活实际,从学生的生活经验和已有知识出发,创设生动有趣的情境。另外,新课程注重追求知识、技能、过程和方法。情感、态度、价值观三个方面有机整合,突出过程与方法的地位,尽量让学生通过自己的阅读、探索、思考、观察、操作、想象、置疑和创新等丰富多彩的认识过程来获得知识, The new “mathematics curriculum standards” pointed out: mathematics teaching should be closely linked to students ’actual life, starting from the students’ life experience and existing knowledge, to create a vivid and interesting situation. In addition, the new curriculum focuses on the pursuit of knowledge, skills, processes and methods. Emotion, attitude and values, and emphasize the status of the process and method. Students should try their best to acquire knowledge through a variety of cognitive processes such as reading, exploring, thinking, observing, manipulating, imagining, doubting and innovating.