用构造法证明不等式,要针对题目的特点构造出相关的方程、函数、几何图形或其它模型和媒体,然后借助它们来解题,同常规证法比较,这种方法显得思路清晰,构想巧妙,过程简捷。同时,还可培养敏锐的观察力和丰富的联想力以及提高综合运用知识的能力。现略述如下: Using the construction method to prove inequality, the relevant equations, functions, geometric figures or other models and media should be constructed according to the characteristics of the topic, and then they should be used to solve the problem. Compared with the conventional verification method, this method is clear and clever. The process is simple and straightforward. At the same time, it can also cultivate keen observation and rich association and improve the ability to comprehensively use knowledge. The summary is as follows: