数学题中被思维激活的知识称为思路点 .而如何形成解题的思路点 ,便是解题的关键 .本文通过对几道题目的分析 ,说明形成解题思路点的几条途径 .1　联想呼应题目中常有熟悉的认识结构 ,以此联想出原型 ,呼应出解题的思路点 .例 1　已知ｍ为常数 ,ｘ∈Ｒ ,且ｆ(ｘ +ａ) =ｆ(ｘ) - The knowledge activated by thinking in the mathematics problem is called the thinking point. How to form the problem solving point is the key to solve the problem. This article explains several ways to form problem solving points by analyzing several topics. Lenovo echoes the subject often has a familiar cognitive structure, in order to associate with the prototype, echo the idea of ​​solving the problem points. Example 1 is known as m constant, x ∈ R, and f (x + a) = f (x) -