教学内容人教版四年级上册第3～4页(例1,做一做,你知道吗)。【教学过程】一、情境解读,引出“大数”原型1.出示信息:轻纺城小学共有学生1933人。(1)指读信息,追问数的意义。(2)1933人大约是几千人?(约2000人)两所这样的学校,大约会有多少人?三所、四所、五所呢?(复习“一万”)(3)二年级时,我们已经学习了像这样的“万以内的数”。2.出示信息:轻纺城有经营人员约50000人,上周客流量约715800人,某品牌店日营业 Teaching content PEP Fourth grade on the first 3 ~ 4 (Example 1, to do one, you know it). Teaching process A situation interpretation, leads to the “large number” prototype 1. Show information: a total of 1933 students in China Textile City. (1) refers to the reading of information, the meaning of the number. (2) The number of 1933 people is about a few thousand? (About 2,000) How many of these two schools are there? Three, four, and five (about 10,000) (3) When we were in grade, we had already learned something like this. 2. Presenting Information: There are about 50,000 salespeople in China Textile City. Last week, there were about 715,800 visitors and a certain brand shop opened daily