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四下:三角形内角和(折叠法)
Author:
钟秀群
GeoGebra
New Resources
比較五件物件的重量
球体的截面
科赫雪花
活动三:应用性质
斐波那契螺旋弧线(表格法-可动态调节)
Discover Resources
擴分和約分
探究平行四邊形面積(2)
geogebra
Pyramid with square base (angle between planes)
任务1:一次、二次函数的绘画
Discover Topics
Vectors 2D (Two-Dimensional)
Correlation
Random Variables
Sequences and Series
Integers