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蝴蝶定理
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
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【案例】2018年全国1卷理科12题
找出對稱軸
錐體建築師
兩組對邊相等的四邊形
柱體建築師
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y=a(x-h)²+k
Quiz on Indices and Logarithms 指數和對數：測驗
均分除法（整數÷整數）
基督教宣道會宣基小學「STEM 遇上 GeoGebra」工作坊
我的第一个GGB绘本
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Orthocenter
Trapezoid
Pyramid
Kite
Cone