思维活动离不开转换 .数学解题过程实质上是一种转换过程 ,一个从未知向已知的转换过程 .正如匈牙利数学家路莎·彼得所说 :“数学家们解题往往不是对问题进行正面攻击 ,而是将它不断变形 ,而是把它们变为能够得到解决的问题” .因此 ,解题时恰到好处地引入转换机制 ,充分发挥 Thinking activity is inseparable from conversion. The mathematical problem solving process is essentially a conversion process, a process of conversion from the unknown to the known. As Luz Peter, a Hungarian mathematician, said: “Mathematicians often do not solve problems by solving questions. Instead of frontal attack, it is constantly deforming, but it becomes a problem that can be solved." Therefore, when the problem is solved, the conversion mechanism is introduced to give full play to it.