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畫三角形 題1b 的複本
Author:
sfcs_maths_p3
,
GeoGebra Institute of Hong Kong
畫三角形 題1b
GeoGebra
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四邉形 (四年級) 教師版
長方體平面投影 (Codex版)
近似值：有效數字
找出對稱軸
判斷球體
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內切圓滾動有圖更新
ruler
學習活動二之二參數與圖形結構的關係
時鐘
椭球面
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Optimization Problems
Conic Sections
Random Variables
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