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Sudbury Valley school.ppt
by day228 葉天喜 - Thursday, 8 November 2012, 8:17 AM
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Sudbury Valley school.pptSudbury Valley school.ppt

美國自主學習的典範之一：瑟谷學校

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[ Modified: Thursday, 8 November 2012, 8:17 AM ]
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