我在一所小学听了一节二年级班的数学复习题,复习的内容是“比……多、比…少”的简单应用题。课堂上,老师板书了两种类型的两道应用题,并特地用彩色粉笔在“多”和“少”两字下面打上了着重符号。从表面上一看,这位教师还能抓住“重点和关键。”这两道题的内容,刚好是出现“多”字的题用加法计算,出现“少”字的题用减法计算。尔后,教师点了课本上的几道练习题让学生做。出乎该教师的意料,其中一道题是先告诉了 I was in a primary school to listen to a sophomore mathematics review questions, review content is “more than ... less than ...” simple application questions. In the classroom, the teacher wrote two types of two-question questions on the blackboard and put a special emphasis on colored chalk under the words “more” and “less.” On the surface, the teacher can also grasp the “key and the key.” The content of these two questions is precisely the question of “many” words added to the calculation, and the word “less” is subtracted. Later, the teacher clicked a few exercises on the textbook for the students to do. Out of the teacher's expectation, one of the questions is to tell first