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GeoGebra
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GeoGebra
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Author:
Leung Yeeling
GeoGebra
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撒针估算面积实验
盈利與虧蝕
正方形雪花图案
比較五件物件的重量
直線的斜率：水平變化 & 鉛垂變化
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waaachen
心臟線方程式
中一︰相似圖形（平移、旋轉、反射、放大縮小）
Sequence指令作圖-3
百分數：折扣 / 賺賠
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Plane Figures or Shapes
Constructions
Functions
Optimization Problems
Centroid or Barycenter