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Author:
数豆豆
GeoGebra
New Resources
科赫雪花
龙形曲线-分形龙
撒针估算面积实验
龙形曲线-分形龙2
第八周作业1
Discover Resources
Measurement & Classification of Angles 角的量度和分類
車輪
GGB動畫
六年級 圓周
正弦函數 y=Sin(x)
Discover Topics
Upper and Lower Sum or Riemann Sum
Multiplication
Straight Lines
Means
Vectors