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School Puzzles and Recreations
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Demonstrations 261 - 280 of 390
The Troublesome Twelve Circle Problem
Maurer Roses
Spiral or Not?
3n+1 Flying Saucers
RGB Color Space
Named Colors
Lattices in Perspective
Consecutive Heads or Tails
Pinwheel Tiling
Clean Tile Problem
The Drake Equation
Star of David Theorem
Concentric Circles
Making Change with U.S. Currency
Jingle Bell Surface
Simple City Builder
Miura Map Folding and Unfolding
Upside Down Words
Romeo and Juliet
Dissection Fallacy
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