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折纸成抛物线
Author:
蔡永志
Topic:
Conic Sections
,
Parabola
GeoGebra
New Resources
三位數除以一位數（一）
球體建築師
畫出對稱圖形
四邊形的特性
四邉形 (四年級) 教師版
Discover Resources
以剪貼比較圖形大小 題3
外心
倒水验证勾股定理
随机模拟实验（撒豆子估算π）的副本
二項分佈的副本
Discover Topics
Sequences and Series
Vectors
Rational Numbers
Quadratic Functions
Angles