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滾動圓周來發現圓周長 的複本
Author:
SYLEUNG
,
Lionheart William
圓周長活動一-發現圓周的長度 用具體操作,發現圓周長和直徑的關係
GeoGebra
New Resources
Nested spiral octagon
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
Earth with coastline
畫出對稱圖形
Discover Resources
用極座標做時鐘
正方體的反射對稱
面積相關問題(Area)
優良作品1(沛綺)
angle at the same segment
Copy of 正方體的反射對稱1
Discover Topics
Surface
Calculus
Geometric Transformations
Logic
LCM and GCD