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Howard Clock
Author:
Chan Wing Ho
撥動鐘面,輸入鐘面上指示的時間。 輸入時間,依時間撥動鐘面。 Information for other teachers: 讓學生認識如何從鐘面報時,及如何在鐘面顯示指定的時間。
GeoGebra
柯志明 香港教育局 教育基建分部
New Resources
Viviani's Window
Isosceles Triangle: Quick Construction
Slope of a Straight Line: Run and Rise
van Aubel's Theorem
Linear Cross Section Exercise
Discover Resources
Angle in Semicircle
Start, Perpendicular to line from point not on line
Dilation (Reduce or Enlarge)
More Graphs of Functions: IM 8.5.5
Input Demand-CD-1 Input
Discover Topics
Matrices
Translation
Square
Optimization Problems
Coordinates