在数学教学中,我们常发现不少学生在解完题之后,往往不敢确定自己的解答结果是否正确,急于翻查有关答案或提示,或者在同学之间互对得数,甚至在确认自己答案错了的情况下,也往往不去寻查错误的原因,而只是盲目地重新做一遍.这样不仅浪费了时间和精力,而且对于理解概念、巩固知识、开阔解题思路都没有益处. In mathematics teaching, we often find that after solving a problem, many students often do not dare to determine whether their answers are correct or not. They are eager to check relevant answers or prompts, or they can count on each other and even confirm themselves. When the answer is wrong, it is often not to search for the cause of the error, but to do it again blindly. This not only wastes time and energy, but also has no benefit in understanding concepts, consolidating knowledge, and broadening ideas.