构造性方法也是中学数学一种很重要的思想方法,但往往因为需要一定的创造力才能构造出恰当的符合要求的模式而使学生望而生畏.但它对于培养学生的创造力和创新能力是非常有益的.在教学过程中应有意识结合问题进行这方面的引导和训练,在提高学生的创新能力的同时也巩固了以前学过的内容.下面以基本不等式a+b Constructive method is also a very important method of thinking in middle school mathematics, but it is often intimidating to students because they need some creativity to construct appropriate and satisfactory mode.However, it is very useful for cultivating students’ creativity and innovative ability In the process of teaching should be combined with the problem of awareness of the guidance and training in this regard, to improve students’ innovative ability but also to consolidate the previously learned content below the basic inequalities a + b