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NYT Numberplay puzzle: Catbird Seat
Author:
michelleh
Based on NYT Numberplay puzzle "Catbird Seat":
http://wordplay.blogs.nytimes.com/2012/09/10/numberplay-catbird-seat/
GeoGebra
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History of Maths
Bottema's Theorem
Rotating Points (Optical Illusion)
Limaçon / Cardioid as a Locus - A Classical Construction
Viviani's Window
Discover Resources
Common Multiples
pattern 5X5e
Animation to show the area of a trapezium
Isosceles Triangle Part 2
mat1
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Equations
Upper and Lower Sum or Riemann Sum
Sequences and Series
Parametric Curves
Quadratic Functions