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分數乘法2
Author:
Tong Wing Hong
GeoGebra
New Resources
比較五件物件的重量
斐波那契螺旋弧线（表格法-可动态调节）
直線的斜率：水平變化 & 鉛垂變化
撒针估算面积实验
第八周作业2
Discover Resources
公因數與公倍數
香港的硬幣
簡易畢氏訂裡面積分割證明法
tool2
Copy of 方格紙上畫平行四邊形3
Discover Topics
Histogram
Arithmetic Operations
General Quadrilateral
Matrices
Perimeter