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Author:
YenHsunChen
GeoGebra
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【案例】2018年全国1卷理科12题
三位數除以一位數（一）
算柱 (兩位數)
四邉形 (四年級) 教師版
兩位數加法
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Different Forms of Quadratic Functions 二次函數的不同形式
Locus: Fixed Distance From Line Segment
Circumcentre
sintx
翰林數學_2下_CH3-4_樞紐定理
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Hypothesis Testing
Fractal Geometry
Rotation
Probability
Subtraction