“转化与化归”的思想就是将复杂或陌生、新颖的数学问题、数学信息和数学情景转化为简单或已知的数学知识和成熟的经验方法,从而解决问题的策略。“转化与化归”的思想方法是中学数学中重要的思想方法之一,也是高考数学中重点考查的思想方法。“转化与化归”的思想,遵循以下五项基本原则:(1)化繁为简的原则;(2)化生为熟的原 The idea of ​​“transformation and transformation” is to solve the problem by transforming complex or unfamiliar new mathematical problems, mathematical information and mathematical scenarios into simple or known mathematical knowledge and mature empirical methods. “Transformation and transformation ” thinking method is one of the important thinking methods in middle school mathematics, but also the ideological method of examining the key points in mathematics of college entrance examination. “Conversion and return ” thinking, follow the following five basic principles: (1) simplification of the principle; (2)