在函数关系中,其概念与性质的运用均应以自变量为导向,即自变量核心法,有利于加深对函数关系的理解。本文应用4个示例对该解题方法进行了验证和说明。示例表明,自变量核心法可有效扩展学生在解决函数关系问题的思维空间,使诸多问题的解题方法更为简洁。 In the functional relationship, the application of its concept and nature should be based on independent variables, that is, the core of independent variables, which helps deepen the understanding of the functional relationship. This article uses four examples to verify and explain the problem solving method. The examples show that the core method of independent variables can effectively expand students’ thinking space to solve the functional relationship problems, and make the solution of many problems more concise.