苏教版一年级上学期数学2比一比 课件 (共18张PPT)

(共18张PPT)
比一比
等于号
大于号
小于号
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$546,568,000
68%
45%
62%
59%
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新知讲解
按顺序仔细观察图，说一说，图上有些什么？
比较轻重的方法
可以用手掂一掂，哪个物体轻，哪个物体重。如果用手掂一掂也很难比较，可以借助工具来比较。
知识梳理
知识要点
采蘑菇比赛
4
3
＞
√
原来站在同一高度比较，才便于得出比较准确的结果，你们真棒！
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解答：
√　 ×
典例精析
看一看
你还能在图中找一找、比一比吗？
易错详解
看一看
重的画“√”，轻的画“ ”。
√
√
高的画“√”。
√
知识回顾
动一动
哪个人高？高的画“√”。
√
典题提升
做一做
仔细观察图，请你说说图上画了什么？
知识回顾
想一想
感谢同学们积极配合!