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教学素材：运动中的圆锥曲线
Author:
清风拂琴，陌上花开
GeoGebra
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兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
柱體建築師
異分母分數減法
算柱 (兩位數)
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Symmetric設計對稱圖案(一條對稱軸)
雨刷中的數學
方輪與方路
青字歌
三角函數 週期、振幅變化 課堂投影用
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Area
Difference and Slope
Ratios
Random Experiments
Multiplication