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規律幾何圖形珠串
Author:
陳正鴻
GeoGebra
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四邉形 (四年級) 教師版
錐體建築師
【案例】2013年安徽高考15题
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
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商高定理\水2
Addition and Subtraction of Directed Numbers (2) 有向數加減(2)
軌跡,摺紙,滾動,實驗觀察,曲線
棒形圖2(我最喜愛的科目)
S5 Transformation of Functions
学习科学计算器
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Vectors
Prism
Combinatorics
General Quadrilateral
Polygons