对“解两次”概念的探讨

Probing into the Concept of “Solving a Question Twice”

提出"解两次"的新概念,其含义是,对同一道数学问题,至少解两次,其实也就是一题多解的意思,属于解题回顾、解题研究.之所以提出一个新名词"解两次",是觉得,这种方法应该有一个名词,应该在解题方法中占有一席之地,应该给予强调和重视.

This paper presents a new concept of 'solving a question twice'.The author believes that solving a question twice should fall into the category of reviewing or studying various ways to solve a problem and should be given a name and a position among different problem solving methods.