TPSS Board of Representatives Meeting Date: May 18, 2014 Time and Place: 5:00pm, TPSS Community Room Present: Tanya Whorton (TW), Rachel Hardwick (RH), Emily Townsend (ET), Matt Hersh (MH), Bill Rodgers (BR), Robert Ande

Source URL: www.tpss.coop

• Structure
• Consumer cooperative
• Cooperative
• Co-op Atlantic
• Board of directors
• The O
• Business models
• Business
• Food cooperatives

TPSS Board of Representatives Meeting Date: January 26, 2014 Time and Place: 5:00pm, TP Store Community Room Present: Tanya Whorton (TW), Dan Robinson (DR), Emily Townsend (ET), Matt Hersh (MH), Kahlil Yanes (KY), Rachel

Source URL: www.tpss.coop

• Food cooperatives
• Co-op Atlantic
• The O

Euler Formula Tanya Khovanova May 6, 2013 Class Discussion Euler formula: E + 2 = V + F . Proof. Euler formula for a sphere and a torus. Walter Wick’s Optical Tricks.

Source URL: www.tanyakhovanova.com

• Puzzles
• Water
• gas
• and electricity
• Planar graph
• Leonhard Euler
• Graph
• Tree
• Graph theory
• Mathematics
• Topological graph theory

  TPSS Board of Representatives Meeting Date: December 18, 2012 Time and Place: 7:00pm, TPSS Community Room Present: David Walker (DW), Tanya Whorton (TW), Steve Dubb (SD), Emily Townsend (ET),

Source URL: www.tpss.coop

Euclid’s Algorithm Tanya Khovanova October 25, 2010 Nothing produces such odd results as trying to get even. Class Discussion

Source URL: www.tanyakhovanova.com

• Euclidean algorithm
• Coprime
• Fibonacci number
• Divisor
• Algorithm
• Pairwise coprime
• Least common multiple
• Mathematics
• Number theory
• Greatest common divisor

PIE Tanya Khovanova December 13, 2010 http://xkcd.comClass Discussion

Source URL: www.tanyakhovanova.com

• Playing cards
• American Mathematics Competitions
• Suit

  TPSS Board of Representatives Meeting Date: November 18, 2012 Time and Place: 6:15pm, TPSS Community Room Present: David Walker (DW), Tanya Whorton (TW), Matt Hersh (MH), Emily Townsend (ET),

Source URL: www.tpss.coop

• The O
• Takoma Park
• Maryland
• Food cooperatives
• Housing cooperative
• Real estate

Extra Problems. VII. HMMT 2009 Algebra Tanya Khovanova December 12, points If a and b are positive integers such that a2 − b4 = 2009, find a + b.

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Extra Problems. I. Tanya Khovanova September 19, 2011 Fibonacci Numbers Prove that for any integer n there exists a Fibonacci number divisible by n.

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Classical Cryptography Tanya Khovanova September 20, 2010 Class Discussion Caesar Cipher. Substitution ciphers. Helpful info: •

Source URL: www.tanyakhovanova.com

• Classical cipher
• Cipher
• Science
• Mathematical sciences
• Mathematics
• Cryptography
• Substitution cipher
• Caesar cipher