“倍数和因数”相关内容的复习课,笔者上过多次,采用的方法也是一般复习课中常用的问答方式,但是学生总是表现得兴趣寥寥,多是被动学习。在一次不经意间,笔者抛出“自行整理倍数和因数的概念”这一核心问题,意想不到的情况出现了,学生的兴趣高涨,虽然整个过程中出现了许多问题,但学生通过动手操作和合作交流都能一一解决。现将教学片段简要记录如下。 “Multiple and factor ” related content review class, the author on many occasions, the method used is also commonly used in general review Q & A, but students always showed little interest, mostly passive learning. In a casual way, the author threw out “the concept of self-organizing multiple and the number of factors,” the core issue of unexpected situations arise, the students interest is high, although the whole process there have been many problems, but students through hands-on And cooperation and communication can be resolved one by one. Now a brief record of the teaching section is as follows.