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GeoGebra
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四邉形 (四年級) 教師版
三位數除以一位數（一）
找出對稱軸
三位數除以一位數（二）
拼砌四邊形
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以電子學習照顧數學科學習差異
階梯問題
volume of tetrahedron and parallelepiped
定積分 (The Definite Integral)
达芬奇椭圆仪
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Symmetry
Frequency Distribution
Parallelogram
Perimeter
Coordinates