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翰林B4習p81_9
Author:
廖傑成
翰林B4習p81_9
GeoGebra
New Resources
四邊形的特性
三位數除以一位數（二）
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
拼砌四邊形
Discover Resources
RHS全等性質
Distributive Law 2 (分配率 2)
對稱-釘板-Student
Ice Mountain
布丰投针实验
Discover Topics
Linear Regression
Trapezoid
Upper and Lower Sum or Riemann Sum
Matrices
Subtraction