Selected Category: 數學好好玩 (5)

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2009-05-13 用畫的也能算乘法 (205) (0)
2009-05-02 不背九九乘法也能算乘除-Cody的數學思維 (314) (3)
2009-01-05 轉貼-建構式數學為何物？ (175) (0)
2009-01-05 轉貼-建構式精神 (36) (0)
2009-01-01 轉貼-數想國的小小數學家 (26) (0)