知识要点概述等价转化是把未知解的问题转化到在已有知识范围内可解的问题的一种重要的思想方法.通过转化,将不熟悉的、不规范的、复杂的问题转化为熟悉的、规范的、简单的问题.我们要不断培养和训练转化意识,这将有利于强化解决数学问题的应变能力,提高思维能力和解题的技能、技巧。 Overview of knowledge points Equivalent transformation is an important way of thinking to transform the problem of unknowns into a solvable problem in the existing knowledge.With transformation, unfamiliar, non-standard and complicated problems are transformed into familiar Norms, simple questions.We must continually cultivate and train awareness of transformation, which will help strengthen the ability to solve math problems, improve thinking skills and problem-solving skills, skills.