面对数学问题,如果直接运用已有知识不能或不易解决该问题,就需要不断转化待解决的问题的形式,把它归结为能够解决或比较容易解决的问题,最终使原问题得到解决,这种思想方法称为化归(转化)思想。化归思想在不同年段有不同的呈现形式,低年段更多地倾向于感悟,高年段侧重于简单运用,能运用化归思想解决问题。在教学中,教师应从教材、生活角度出发,让学生感悟到化归思想。学生对于难以解决的问题,一般较难有持久的耐力, In the face of math problems, if the existing knowledge can not be directly used or can not be easily solved, it needs to be continuously transformed into the form of the problem to be solved, and attributed to the problem that can be solved or relatively easy to be solved, and finally the original problem can be solved Way of thinking known as the return (conversion) thought. The thought of returning to normalization has different forms of presentation in different years, while in the later years it tends to be more sentimental. In the later years, it focuses on the simple application and can use the thought of returning to the past to solve the problem. In teaching, teachers should start from the teaching materials, life, let students realize the return to thought. Students difficult to solve the problem, generally more difficult to endure endurance,