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教学实录一、再现生活情境,初步感知1.出示:从老师家开车到学校用了10分钟,汽车每分钟行1千米,你知道从老师家到学校有多远吗?2.学生列式解答,并说说是怎样想的。3.指名反馈,并说一说1、10、10分别代表什么。生:1×10=10(千米)(板书)生:1表示汽车每分钟行1千米,10表示用了10分钟,10表示老师家到学校有10千米。师:你的意思就是1表示汽车每分钟行的路程,10表示用了10分钟,10表示路程。4.追问:这里的两个10一样吗?有什么不同?1和10都表示路程,它们的意思一样吗?
Teaching Record First, reproduce the life situation, the initial perception 1. Show: From the teacher’s house to drive to school spent 10 minutes, the car every 1 km line, you know how far from the teacher’s home to school? Answer, and talk about how to think. 3. Named feedback, and say what 1,10,10, respectively. Students: 1 × 10 = 10 (km) (blackboard) Students: 1 that the car every minute line 1 km, 10 that spent 10 minutes, 10 said the teacher home to the school 10 km. Teacher: Your meaning is that 1 means the car travels every minute, 10 means 10 minutes, 10 means distance. 4. Questioning: Is there any difference between the two 10s here? What are the differences between 1 and 10? Do they mean the same?