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原充老師
GeoGebra
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四邉形 (四年級) 教師版
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
畫出對稱圖形
Discover Resources
test
圓內接四邊形任務二：提示一
四邊形的邊長與限制
中國火柴遊戲一
学习计算器套件
Discover Topics
Statistics
Arithmetic Operations
Geometric Distribution
Optimization Problems
Polynomial Functions