【教学内容】义务教育教科书数学五年级下册第30~31页。【教学过程】一、准备课前,每位学生独立、自主完成“倍数和因数”研究学习。(材料单类似于教材第30至31的内容,只是在找出36的所有因数时,材料中仅提供了一种“列举除法算式”的方法,另外材料中也没有直接呈现出一个数的倍数或因数有什么特点。材料单的最后,还精心 【Teaching content】 Compulsory education textbooks fifth grade volumes Volume 30 ~ 31 pages. 【Teaching process】 First, prepare each class before class, each student independently, independently complete “multiples and factors” research and study. (Bill of Materials is similar to the text of the material 30 to 31, only to find out all of the factors of 36, the material provides only a “list of division formula” method, the other material does not directly show a number The multiples or the factors that have the characteristics of the bill of materials at the end, but also carefully