在解题时,通过观察进行联想,恰当地构造出与题目相关的一个数字模型,将欲解证的问题转化为研究该模型特征的问题,常会带来意想不到的效果.这也正是高考中特别强调的考查“运用所学数学知识和方法分析问题和解 When solving a problem, the association is made through observation, a digital model related to the problem is properly constructed, and the problem to be solved is converted into a problem in the study of the characteristics of the model, often with unexpected results. This is exactly what happens in the college entrance examination. Special emphasis on the examination "using mathematical knowledge and methods learned to analyze problems and solutions