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3 本质识别模式3.1 以工程问题为例——抓住反比例函数关系从例1的“工程问题”提炼出反比例函数模式(A)之后,再遇到新的问题,只要变化过程满足反比例函数关系,就都可以用模式(A)的方法来解决.此时,我们对“工程问题”的判别就不依赖于题目中是否有“工程”、“行程”等字眼或情境,而是根据本质结构:反比例函数关系.“工程问题”只是反比例函数模式的代号或一个现实原型.这正是初级认知模式与高级认知模式的一个重大区别.例2—1 妈妈去商店买布,所带的钱可买甲布2米、或乙布3米、或丙布6米.现三种布都买同样多的
3 ESSENTIAL IDENTIFICATION MODEL 3.1 Taking Engineering Problem as An Example - Grasp the Inverse Proportionality Function After extracting the inverse proportion function mode (A) from “Engineering Problem” in Example 1, we encounter another new problem as long as the change process satisfies the inverse proportion function Relationship, we can use mode (A) method to solve this time, we do not depend on whether the subject of “project ”, “trip ” and other words or Situation, but based on the nature of the structure: the inverse proportion function relationship. “” Engineering problem "is only a code of the inverse function model or a realistic prototype, which is a major difference between the primary cognitive model and the advanced cognitive model. Mama to the store to buy cloth, the money can buy a cloth 2 meters, or B cloth 3 meters, or cloth C 6 meters. Now all three kinds of cloth to buy as much