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Author:
Anthony OR 柯志明
GeoGebra
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四邉形 (四年級) 教師版
三位數除以一位數（一）
兩組對邊相等的四邊形
判斷球體
異分母分數減法
Discover Resources
尺規作圖找有理數點(以3分之5為例)
直线与椭圆
Book4
橢圓
实心曲面几何体
Discover Topics
Difference and Slope
Parallelogram
Triangles
Definite Integral
Special Points