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Draw a Flower
Author:
陳隆期
GeoGebra
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四邉形 (四年級) 教師版
三位數除以一位數(一)
四邊形的特性
拼砌四邊形
直角坐標平面上的旋轉變換
Discover Resources
Reflection 反射變換
因式分解(十字相乘法)
Perpendicular lines
翰林數學_2下_CH4-1_截線與截角的意義
正N边形点列
Discover Topics
Tree Diagrams
Square
Special Points
Trigonometry
Translation