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Author:
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Volume:
Issue:
xue xi shu xue yao zhong shi ni xiang si wei
Author(s):
TU Xinmin
Pages:
8
-
9
Year:
2009
Issue:
Z1
Journal:
School Journal of Mathematics
Keyword:
逆向思维
;
椰子
;
学习数学
;
正向思维
;
逆定理
;
猴子
;
逆命题
;
概念学习
;
边长
;
培养
;
Abstract:
<正>有一道趣味题是这样的:有四个相同的瓶子.怎样摆放才能使其中任意两个瓶口的距离都相等呢?可能我们琢磨了很久还是找不到答案.那么,办法是什么呢?原来,把三个瓶子放在正三角形
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