在进行不等式这一章的教学之前,我曾在杂志上看到过一文,其中证明定理“如果a、b>0,那么a+b/2≥ab~(1/2)(当且仅当a=b时取等号)”的方法共有十二种,有些方法还真是难以想到.在教这一内容时,我产生了也让学生探索 Before I started teaching in the chapter on inequality, I had seen a passage in the magazine in which it was proved that the theorem “if a, b> 0 then a + b / 2≥ab ~ (1/2) (if and only if a = b when taking the equal sign) ”There are a total of twelve methods, some methods really hard to think of .In teaching this content, I have also let students explore