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三角函数线
Author:
陈瑾
GeoGebra
New Resources
球体的体积推导
球體建築師
兩位數除以一位數（二）
拼砌四邊形
四邉形 (四年級) 教師版
Discover Resources
volleyball throughing
Projection
Addition and Subtraction of Directed Numbers (2) 有向數加減(2)
軌跡,摺紙,滾動,實驗觀察,曲線
FHMS Corr Angles (Positions)
小四平面圖形學習單
Discover Topics
Parametric Curves
Plane Figures or Shapes
Random Variables
Equations
Difference and Slope