GeoGebra
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GeoGebra
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圓面積
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康靖坤
interlinking.title.new
数一数这是几边形
Completing the Square (Part 3)
cube(方块堆叠)
Estimating the Mean
全等三角形
interlinking.title.discover
Area of trapezoid
模擬隨機變數的「總和」
教學－旋轉
Angles in pyramid
六年級
interlinking.discoverTopics
topic.histogram.title
topic.pyramid.title
topic.translation.title
topic.centroid.title
topic.probability.title