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圖一
Author:
wong wai man
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
四邉形 (四年級) 教師版
【案例】圆柱体内放置一个大球六个小球
拼砌四邊形
畫出對稱圖形
柱體建築師
Discover Resources
正方體的反射對稱1
GGB5_3D物件
圖解定理公式與切割組合
平行四邊形
PMC 2017-18
Protractor-usage
勾股定理的直观证明(义务教育数学 新课标-例82)
Discover Topics
Surface
Means
Conditional Probability
Division
Exponent