关于数序和相邻数
数序:例如6前面一个数是几,后面一个数是几,学生易混淆,认为6前面一个数是7,后面一个数是5,对抽象的数序知识理解困难。
相邻数:一个数前面和后面相互邻近的两个数就是该数的相邻数,与前与后相差1,也就是中间数的左边是几,右边是几。
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游戏一: 数字猜一猜
准备好数字卡片1-7,也可以自制卡片。按要求举起相应卡片。亲子合作完成,家长问,孩子答。
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参考问题如下:
我是4的后一个数,我是几?5的后面是几?
我是6的前一个数,我是几?5的前面是几?
6添上1是几?7去掉1是几?
与6相邻的两个数是几和几?5的相邻数是?
我是3和5中间的数,我是几?
![](https://epss-volc.jianpian.info/biz/569a2a4303a949969768225ea1d977d9.png)
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以下同学能用完整地一句话来回答,真的好棒!
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雷明臻
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02:10
陈浩霖
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02:32
彭梓珊
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01:03
陈辉颖
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02:38
廖一铭
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02:04
尹馨晨
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01:54
张耀炜
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01:58
李嘉乐
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01:14
马源
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01:40
魏任川
01:19
赵煦珍
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煦珍有进步哦,表扬
04:19
谢秉澄
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03:00
赵星辰
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00:29
邓景程
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01:47
余梓荣
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01:31
程可悦
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01:13
叶佩儿
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01:54
蔡瑷骏
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01:19
王钰涵
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01:46
游戏二: 数字摆一摆
用6根、7根小棒分别摆图形,比一比谁的作品最有趣。摆好后记得跟你的作品拍张照片哦。
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让我们来看一下同学们摆的趣味图形。
陈辉颖
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董屹城
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张耀炜
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02:03
李鹏威
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张憬宸
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尹馨晨
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00:40
陈伊琳
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雷明臻
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温梓嫣
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梁浩博
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彭梓珊
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01:14
谢秉澄
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李竣宇
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00:32
周佳仪
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陈芊羽
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叶佩儿
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谢筱玥
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孩子们用自己的智慧,通过动手操作摆出许多美丽的图案,充分感受图形美,数学美,体验到小棒的神奇。
![](https://epss-volc.jianpian.info/biz/f481cd24e80549a381c45b227a10b5d0.png)
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游戏式作业将数学知识融入到生动有趣的活动中,让作业更有创意,更有趣味,将所学知识转化为能力,提升孩子们的数学素养。
数学来源于生活,生活也因数学而更加美丽。
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