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waaachen
Author:
陳兪宏
偷懶版本~~~
GeoGebra
New Resources
找出對稱軸
兩位數加法
兩位數除以一位數（二）
四邊形的特性
四邉形 (四年級) 教師版
Discover Resources
簡單的回饋「笑臉」與「哭臉」
From Bra chart to Broken line graph
增加數據對平均數的影響
正弦函数图象
勾股定理
S5R1L4圆内迭代反射——朱老师
Discover Topics
Quadrilaterals
Linear Regression
Right Triangles
Statistical Characteristics
Volume