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Author:
王政凱
GeoGebra
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祖冲之的期望：内棋与外棋
漂亮的摇摆曲线
垂直線的斜率
圓周公式的應用
【案例】2018年全国1卷理科12题
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分數與小數
Making Graph paper
動畫
排數咭遊戲_多位數
开关灯
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Percentages
Congruence
Complex Numbers
Pyramid
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