进入高三二轮复习,学生对于数学解题基本的方法,基本思想,基本及中档题目掌握的比较到位了,很多同学达到了瓶颈,新颖的综合性较强的题目无从下手,不能跳出题目以较高的战略性眼光对待问题,解决问题,思维狭隘,纠结在一两个条件或一两个数值上,会被一些外观看似花哨繁冗的数学式子吓破了胆,望而却步,停止不前。其中一个重要原因:不能根据已知条件特点,采取整体化处理。本文主要通过几个典型例题来阐述对称性及整体意识 Into the high school review, students solve the basic mathematical problem solving method, the basic idea, the basic and mid-range problem more in place, many students reached the bottleneck, the new synthesis of the more powerful topic can not start, can not jump out of the subject A higher strategic vision of problem-solving, problem-solving, narrow-mindedness, tangled in one or two conditions or one or two numerical values, will be frightened by the seemingly fanciful and math-like formula, deterred, stopped . One of the important reasons: can not be based on the characteristics of known conditions, to take a holistic approach. This article mainly elaborates the symmetry and overall consciousness through several typical examples