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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
apec
Rolling an Equilateral Triangle
Parallelogram Anatomy
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Building Parallelograms with Set Areas
Discover Resources
Example 2
Diplomado
Triangle.Change
สามเหลี่ยมพีทาโกรัส
Ultimate symmetry in 3D
Discover Topics
Division
Right Triangles
Ratios
Random Experiments
Sphere