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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
Reflection = 180° Rotation about a Line
Volume by Shells Around y
Making New Year's resolutions for 2026
Reflection across a line
Circle Passing Through 3 Points
Discover Resources
Transformations & Simple Rational Functions
Concept of Derivative and Integral
Kurvekvation och kurvskara
The Image of a Matrix Transformation
symmetry
Discover Topics
Subtraction
Scatter Plot
Orthocenter
Solids or 3D Shapes
Difference and Slope