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Author:
羅驥韡 (Pegasus Roe)
GeoGebra
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兩組對邊相等的四邊形
兩位數除以一位數（二）
四邉形 (四年級) 教師版
【案例】2018年全国1卷理科12题
兩位數加法
Discover Resources
拋物線定義
雙曲線的定義
三角形的面積
PROBLEM SOLVING(COLOUR)
三角形的构成的副本
Discover Topics
Upper and Lower Sum or Riemann Sum
Unit Circle
Combinatorics
Pythagoras or Pythagorean Theorem
Arithmetic Mean