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SIN繪圖
Author:
林鴻鈞
GeoGebra
New Resources
三位數除以一位數（二）
第八周作业
算柱 (兩位數)
異分母分數減法
画直线等分三角形的面积
Discover Resources
Pythagorean Triples 畢氏數組
Comparing fractions using number lines and rectangles
裝飾用
中國火柴遊戲一
三角形的外心
Discover Topics
Statistics
Angles
Set Theory
Random Variables
Vectors 3D (Three-Dimensional)