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九九乘法表的認識
Author:
鍾文欽
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（二）
四邉形 (四年級) 教師版
兩位數加法
異分母分數減法
Discover Resources
斜率 - 概念及定義 (2)
Angles between 2 planes
空白圖檔
線性規劃
大黨小黨－政黨票的掙扎
Discover Topics
Parallelogram
Confidence Interval
Vectors
Fractal Geometry
Reflection