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Author:
Yin Kelvin Wong
GeoGebra
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撒针估算面积实验
第八周作业3
比較五件物件的重量
常见四边形是否是双心四边形
斐波那契螺旋弧线(表格法)
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gyzpa 拋物線焦點準線
活動工作紙LEVEL03
函数作图工具的副本
正弦函数图象
中国节灯笼
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Scatter Plot
Sine
Functions
Ellipse
General Quadrilateral