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勾股数
Author:
杨秀芬
GeoGebra
New Resources
異分母分數減法
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
Discover Resources
等差數列等差數列
指數與對數
Parallelogram 02 - testing
立體錯覺樓梯(使用透視法會稍有差距)
找中點軌跡
congruent (SS) 2
Discover Topics
Triangles
Geometric Transformations
Reflection
Vectors 2D (Two-Dimensional)
Bar Chart or Bar Graph