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龍騰4_1-1課例2
Author:
廖傑成
GeoGebra
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兩位數加法
異分母分數減法
三位數除以一位數（一）
【案例】圆柱体内放置一个大球六个小球
直線的斜率
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一次函數平移(進階)
三圓相切
test01
圓錐曲線的光學性質
椭圆内光线的反射
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Congruence
Curve Sketching
Triangles
Similarity Transformation or Similarity
Tree Diagrams