在前不久举行的安徽省第三届“教坛新星”评选活动中,笔者有幸作为评委听了其中七位选手执教的“基本不等式:ab≤a 2+b(第一课时)”(人教版高中数学必修5)这节课,颇有感慨.也引发了对这部分教材及其教学的一些新的思考.现就本课内容,从如下三方面谈谈教师该如何“善待”教材,“ In the just-held third “Forum Rising Star” in Anhui Province recently held, the author was honored to judge as the jury seven of the players’ basic inequality: ab ≤ a 2 + b (the first lesson) “ Version of high school mathematics compulsory 5) This class, quite emotion .Also triggered some of this textbook and teaching some new thinking is now on the content of this lesson, from the following three aspects of teachers how to ”treat“ teaching material, ”