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Twist Bottle
Author:
陳隆期
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
四邉形 (四年級) 教師版
錐體建築師
Discover Resources
拿破崙三角形
三角形全等的理由 – 題4
Is this a prism 1
艾雪鑲嵌
Solve ax + b = cx + d
Discover Topics
Constructions
Centroid or Barycenter
Stochastic Process or Random Process
Triangles
Upper and Lower Sum or Riemann Sum