(共21张PPT)
比一比
哼,不公平!大头哥哥不跟你玩了。
棉花糖,我比你高!
2.比较高矮的方法
比较物体的高矮,先把要比较的物体的一端放在同一平面上,再看另一端,谁高出一些,谁就高,相反就矮。
知识梳理
知识要点
OUR PROCESS
04
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05
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06
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YOUR COMPANY
Power Point
拔萝卜比赛
3
3
=
新知讲解
高的画“√”。
√
比身高的时候,两个人的脚要放在同一高度上,身要站直。
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58%
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32%
47%
83%
YOUR COMPANY
Power Point
分析:
天平的左边放着1个苹果,右边放着2个橘子,这时天平正好平衡。说明1个苹果和2个橘子同样重,那么1个苹果比1个橘子重。
典例精析
看一看
2.摆一摆,填一填。
( )比( )多
>
( )比( )少
<
新知讲解
重的画“√”。
√
△ ○
解答:
典例精析
看一看
课堂练习
2.高的画“√”,矮的画“ ”。
√
√
重的画“√”。
√
知识回顾
动一动
比较物体的长短、高矮、轻重
比一比
知识回顾
7.重的画“√”。
√
典题提升
做一做
3.最长的画“√”,最短的画“○”。
√
○
典题提升
做一做
作业布置
完成教材“想想做做”第1、2、3题。
Goodbye~
感谢聆听,下期再会