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量度的誤差 Errors in Measurement
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.geogebra.hk
New Resources
算柱 (兩位數)
三位數除以一位數（一）
錐體建築師
四邉形 (四年級) 教師版
畫出對稱圖形
Discover Resources
圓周角與弦切角
cosine graph 變換
線性變換對圖形的影響
分割三角柱
对数函数——底数大小与图形
Discover Topics
Solids or 3D Shapes
Vectors
Angles
Parabola
General Quadrilateral