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時鐘（教師用）
Author:
Mr Tsang
可顯示或隱藏分針，讓學生觀察時針的運動。
GeoGebra
New Resources
Morse code visualizer / decoder
Golden Rectangles and Golden Spirals
Flip A Bunch of Coins
Basic Percent Exercises (V2)
bewijs stelling van Pythagoras
Discover Resources
Equivalent Fractions
Beats
My Construction
Paralellogram
TG Workbench for Pair of Lin Eqns in Two Var
Discover Topics
Sequences and Series
Definite Integral
Division
Differential Equation
Straight Lines