作者ely3d93 (凯子)
看板tutor
标题[分享] Why is 'x' the unknown?
时间Wed Mar 27 09:22:40 2013
Why is 'x' the unknown?
The 'x' the unknown because you can't say 'sh' in spanish.
http://www.ted.com/playlists/19/did_you_know.html
TED上面有很多挺有趣的影片,这个连结里面有六个小故事,
我想可以分享给教数学及自然科学的老师,
这一直以来也是我们最大的问题吧?
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