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三角形面積
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lkkbmaths teachers 檔案儲存用
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GeoGebra
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兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
畫出對稱圖形
第八周作业
異分母分數減法
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Tessellations
工作紙題3
圖形的內部、外部與周界
P53_3c
扇形旋轉2
Discover Topics
Arithmetic Operations
Geometric Distribution
Fractions
Quadratic Equations
Linear Regression