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Videos - The Math of the Golden Ratio
Author:
Chip Rollinson
Khan Academy's video about the math of the Golden Ratio
Numberphile video about deriving the Golden Ratio
Lucas Numbers?
The Silver Ratio and other "Metalic" ratios
New Resources
Sum of Squares: Proof without Words
Perimeter of Rectangle
רישום חופשי
Focus and Directrix
Area of a Trapezoid
Discover Resources
Circle theorem 2 - angles to centre and circumference
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PeerTeachingII2
soscastoa havo 3
โจทย์คิดเลขเร็ว
Discover Topics
Incircle or Inscribed Circle
Functions
Logic
Parallelogram
Rectangle