匈牙利著名数学家P.罗莎(Rozar,Peter)在《无穷的玩艺》中写道:“数学往往不是对问题进行正面攻击,而是不断对它进行变形,直到把它转化成能够解决的问题”.前苏联数学家雅诺夫思卡娅说:“解题――就是意味着把所要解的问题转化为已经解过的问题.”在初中数学中,有许多新知识的获得或新问题的解决都是通过转化为已知知识或已解决的问题来完成的,也就是将新知识向已知知识点或知识块转化, Hungarian famous mathematician Rozar (Peter) wrote in Infinity Play: “Mathematics is often not a positive attack on the issue, but it continues to be deformed until it can be resolved Problem. ”Former Soviet mathematician Janovsky said:“ Problem solving means transforming the problem to be solved into an already solved one. ”" There are many new knowledge in junior math The acquisition of new problems or problems are solved through the transformation into known or solved problems, that is, new knowledge is transformed into knowledge points or knowledge blocks,