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時鐘小幫手
Author:
Chan Pui Chuen
時鐘小幫手
GeoGebra
New Resources
拼砌四邊形
第八周作业
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
球體建築師
Discover Resources
equilateral triangle construction
金惠吉：光的反射与折射
勾股定理
內含正方形的正方形
空间立方体
擲兩個硬幣的機率分布 的複本
Discover Topics
Cone
Statistical Characteristics
Dilation
Pythagoras or Pythagorean Theorem
Quadrilaterals