数学问题总是表现为一定的信息结构,实验表明,内容相同结构不同的信息可以使问题豁然开朗、容易求解,也可以使问题晦涩难明、无法入手.因此,根据解决问题的需要而重组或改变结构,往往具有决定性的意义.许多数学问题含有两个或多个未知数,但通过改造问题结构,可以分离未知数(完全分离或部分分离),使其在等式或不等式的两边,且一边有明确的函数 Mathematical problems are always represented by a certain information structure. Experiments have shown that information with the same content and different structure can make the problem clear and easy to solve. It can also make the problem obscure and incomprehensible. Therefore, reorganizing or reorganizing according to the needs of solving problems. Changing the structure is often of decisive significance. Many mathematical problems contain two or more unknowns, but by reshaping the problem structure, the unknowns can be separated (completely or partially) to make them on both sides of the equation or inequality, and on one side Clear function