《数学课程标准》指出:“要重视从学生的生活经验和已有知识中学习数学和理解数学。”同时又指出:“培养学生的探究意识使学生初步学会运用所学的数学知识和方法解决一些简单的实际问题。”这一要求揭示了数学与实际生活的关系,数学来源于实际生活,数学又为实际生活服务,这两者相互依存,缺一不可。一从生活实际中抽象出数学知识心理学研究表明,学习内容和学生熟悉的生活背景越贴近,学生自觉接纳知识的程度就越高。知识点的呈现方式不 The Standard of Mathematical Curriculum states: “Emphasis should be placed on learning mathematics and understanding mathematics from the students ’life experience and existing knowledge. ” At the same time, it also states: “cultivating the students ’ inquiry consciousness to enable the students to learn how to apply the math And methods to solve some simple practical problems. ”This requirement reveals the relationship between mathematics and real life, mathematics from real life, mathematics and real life services, the two are interdependent and indispensable. A abstraction from the reality of life Mathematical knowledge Psychological studies show that the learning content and the students closer to the background of life, the higher the degree of students consciously accept knowledge. The presentation of knowledge points is not