由于不等式问题相对比较灵活,能较好地开发学生的逻辑思维能力,故而成为高考的必考内容。在运用基本不等式证明一些不等式问题时,有些貌似相同的题目用相同的方法来解决,却得出了正误截然相反的结果,到底是怎么回事?在复习不等式时,笔者将以下两题作为一组题组呈现给学生,并针对学生在解题中的困惑给予分析和指导。题目如下: Because the problem of inequality is relatively flexible and can develop students’ logical thinking ability, it becomes a must for the college entrance examination. When we use the basic inequality to prove some inequality problems, some seemingly identical problems are solved by the same method, but we come to the exact opposite of the correct results. In the end, when we review the inequality, the author uses the following two questions as a The group questions are presented to the students, and analysis and guidance are given to the students’ confusion in solving problems. The topics are as follows: