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高三第一轮复习的主要目的是巩固学生基础,帮助学生回忆所学知识内容,在题目的处理上切合学生实际,主要以简单题和中档题为主。对于基本不等式这部分内容,高考命题重点考查基本不等式和证明不等式的常用方法,单纯不等式的命题,主要出现在选择题或填空题.但是学生对基本不等式求最值的应用普遍掌握得不太好,很多题目难以上手。课堂上,面对一道求最值的问题,如何启发学生的思维显得尤为重要。以今天课堂上的一道题目为例:
The main purpose of the first round of high school review is to consolidate the students ’foundation and help students to recall what they have learned. In dealing with the questions, students’ actual conditions are met. The main topics are simple questions and middle-grade questions. For the part of basic inequality, entrance examination propositions focus on examining the basic inequalities and proving inequalities. The propositions of simple inequalities mainly appear in multiple choice questions or blank questions. However, students generally do not master the application of basic inequality , Many problems difficult to get started. In the classroom, in the face of a problem of seeking the most value, how to inspire students’ thinking is particularly important. Take an example in today’s class: