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優良作品2(怡雯)
Author:
Ching-Hui Chou
GeoGebra
New Resources
三位數除以一位數（二）
四邊形的特性
異分母分數減法
拼砌四邊形
四邉形 (四年級) 教師版
Discover Resources
Sequence指令練習(逐一套疊三角形)
Dart Board
極落戰艦-初階版
練習_對稱
閱讀鐘面及數字鐘（時和分）的副本
Discover Topics
Constructions
Arithmetic
Median Line
Pyramid
Parallelogram