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为了谋求一个问题的解决,把这个问题变形,使之归结为另一个熟知的、较易解决的、或者已经能解决的问题,通过对它的解决,求得原问题的解决。这种将未知转化归结为已知的解决数学问题的基本方法称之为化归法。化归法在小学数学教学中,应用范围非常广泛。化归的思维方式是:不是对所给的问题作出正面的解决,而是不断地将问题变形,直到把它转化成能够得到解决的问题。一、将一种关系化归
In order to find a solution to a problem, the problem should be transformed so that it can be reduced to another well-known problem that is easier to be solved or has already been solved. Through its solution, the solution to the original problem can be obtained. The basic method of solving unknown problems attributed to known mathematical problems is called regression. The law of return to primary school mathematics teaching, the application of a very wide range. The way of thinking of return is not to make a positive solution to a given problem but to continually transform the problem until it can be transformed into a problem that can be solved. First, a relational return