所谓的代换法就是从起点入手,在解题中通过代换方法、换元方法等换出结果。代换法是解高中数学题最常使用的一种方法,但很多同学在解题时都不能灵活应用导致出错。因此,本文对灵活应用代换法提出几点建议和看法,希望能给同学们起到一个借鉴作用。一、灵活运用各种代换法运用代换方法是为了将复杂的问题用简单的方法代换,而不是使原本简单的问题越来越复杂。在使用代换法解题时,要注意如下几点:(一)数学每个板块之间都是密切相关 The so-called substitution method is to start from the starting point in the problem-solving method by substitution, replacement method for the results. Substitution method is the most commonly used method of solving high school math problems, but many students can not be flexible in the solution to the problem lead to errors. Therefore, this article puts forward some suggestions and opinions on flexible application of substitution method, hoping to give the students a reference. First, flexible use of substitution method The substitution method is used to replace complex problems with simple methods, instead of making the original simple problem more complex. In the use of substitution method to solve problems, we should pay attention to the following points: (A) of mathematics are closely related between each plate