在初中数学中 ,有些问题用常规方法难以解决 ,往往需要构造一个与之相关的命题 ,并将原来的问题转化为另一个新问题 ,从而达到简单、直观、易解的目的 .这种解题方法就是构造法 .构造法体现了解决数学问题过程中由繁难到简易的“转化”思想 ,是培养学生创新思维能力的一个重要? In junior high school mathematics, some problems are difficult to solve with conventional methods, and it is often necessary to construct a proposition that is related to it, and convert the original problem into another new problem, so as to achieve the purpose of being simple, intuitive, and easy to understand. The method is the construction method. The construction method embodies the “transformation” thought from the difficult to the simple in the process of solving the mathematics problem. It is an important way to cultivate students’ creative thinking ability.