1背景笔者做了一个实验,一星期前对a进行了分类讨论,讲解了下面的例题,但一星期后当这道题作为课堂练习出现时,全班居然只有1位同学记得这题作为例题出现过,于是出现了“唰唰唰”翻笔记的声音,我的脑袋中也出现了一个大大的问号,为什么讲过的例题会近乎全班同学忘记,是同学们没有认真听吗?是我讲解的不够清晰吗?答案都不是.当时学生只是进行了短时的机械记忆,没有对信息经过充分的和有一定深度的理解加工,学生扮演的只是被动的知识接受者的 1 Background I did an experiment, a week ago a classified discussion, to explain the following example, but a week later when this question appears as a classroom practice, the class actually only one student remembers this question as an example Appeared, so there has been “唰 唰 唰 ” turn notes sound, my head also appeared a big question mark, why did you talk about the class will be almost classmates forget, is the classmates did not listen carefully? Is it not clear that I explain it? The answer is no. At that time, students only carried out mechanical memory for a short period of time. They did not process the information fully and with a certain degree of depth. The students played only passive knowledge recipients