数学来源于现实，也必须扎根于现实。这是数学教育权威弗莱登塔尔的基本主张。数学教学的成功与否，在很大程度上表现在是否培养了学生的数学能力，而数学能力的强弱在很大程度上表现在学生能否运用所学知识去解决实际问题。因此，在数学教学中，如何使学生“领悟”出数学知识 Mathematics comes from reality and must be rooted in reality. This is the basic proposition of Flemingtal, the authority of mathematics education. The success of mathematics teaching is largely reflected in whether students develop their mathematical abilities. The strength of mathematical abilities is largely reflected in whether students can apply what they have learned to solve practical problems. Therefore, in mathematics teaching, how to make students “comprehend” mathematics knowledge