每次课前或课后总有学生问问题,一些学生经常提出:“老师,我又忘了.”遗忘是我们认识事物过程中的正常现象,但“又忘记了”的症结是“又”字,言外之意是前面已经对此类问题质疑、订正过一次或几次,而现在遇到这类问题又无法逾越了.这说明学生对某一类问题的认识存在一定的障碍,也可能是理解上一知半解,导致他无法正确或完整解题.所以我们不能只是贪图做题的数 There are always students asking questions before or after class, and some students often ask: “Teacher, I forgot.” “Forgetting is a normal phenomenon in our understanding of things, but the crux of ” has forgotten Is “again ” word, the implication is that in front of these issues have been questioned, revised once or several times, and now encounter such problems can not be overstated.This shows that students have some understanding of a certain type of problem Obstacles, may also be understood a little knowledge, resulting in him unable to correct or complete problem solving. So we can not just do the number of questions