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四年级上册《Unit 4 Numbers and Time Part C》优秀教案
如何使数学学科渗透到英语学科中，两者形成一个完美的结合点？
本课以Elapsed Time为主题，将三年级数学中钟表的教学和四年级英语中时间的教学有机结合在一起，实现知识和思维在两个学科之间的碰撞和互补，引导学生用英语将学到的数学知识进行梳理、巩固和创新。考虑到全英文教学对学生英语水平的要求，本节课的学生对象是五年级的学生。
二、预设目标：
The students can understand the units of time.
The students can tell the time on the clock in two or three ways.
The students can distinguish A.M. from P.M.
The students can find elapsed time.
三、教学过程：
（一）Free Talk.
What is your name? What’s your favorite subject？Do you like English? Why? Is math interesting?...
（二）Review numbers.
Activity: Skip counting: Skip count to find the missing numbers.
9, 18, 27, , , 54
10, , 30, 40, ,
（三）Units of time: year month week day hour minute second
Activity1: Change units of time.
Activity2: Choose the best term.
（四）How to read the time on the clock?
1、8:30 eight thirty, half past eight, 30 minutes past eight (past)
2、2:45 two forty-five, 15 minutes to three, quarter to three (to)
3、How do you decide whether the time is A.M. or P.M.?
Activity：Choose and Fill.
（五）Elapsed Time
1、Definition：Elapsed time is the total amount of time that passes from the starting time to the ending time.
2、How can you find Elapsed Time?