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時鐘（教師用）的副本
Author:
Crystal Yip
,
Mr Tsang
可顯示或隱藏分針，讓學生觀察時針的運動。
GeoGebra
New Resources
Positive and Negative Space
bewijs stelling van Pythagoras
רישום חופשי
Function Art 3D - Pawn
Multiplication with Area Models
Discover Resources
sammi geometry thing
Teacher's Construction 4
General scaling
สามเหลี่ยมปีทาโกรัส
Ratio of areas of squares
Discover Topics
Pythagoras or Pythagorean Theorem
Upper and Lower Sum or Riemann Sum
Statistical Characteristics
Intersection
Cone