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Direct and Inverse Variation 正變與反變
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
兩位數除以一位數（一）
近似值：有效數字
兩位數除以一位數（二）
算柱 (兩位數)
四邉形 (四年級) 教師版
Discover Resources
Locus of mid-point of a variable chord of a circle.
弧度
Copy of 分數與小數
地球儀
fraction compare
Discover Topics
Natural Numbers
Geometric Transformations
Circle
Curve Sketching
Plane Figures or Shapes