Date:  Speaker and Affiliation:  Topic:  Notes: 

September 16, 2009 
Tom Davis  Rational Tangles  Notes on Rational Tangles 
September 23, 2009  Zvezdelina Stankova,
Mills College 
Introduction to Number Theory  Really hard Bulgarian Olympiad Problems
See Chapter 4 of the Berkeley Math Circle book 
September 30, 2009  Linda Green,
Mills College 
Euler Number  Euler Number Problems 
October 7, 2009  Paul Zeitz,
University of San Francisco 
Two is Better than Infinity
Part 1 
Problems Involving 2’s, Even and Odds
Homework Problems #1,2,3,4,6,9 
October 14, 2009  Paul Zeitz,
University of San Francisco 
Two is Better than Infinity
Part 2 

October 21, 2009  Matthias Beck,
San Francisco State University 
Codes, Ciphers, and Secret Messages  Modular Arithmetic Codes 
October 28, 2009  Tatiana Shubin,
San Jose State University 
Mathematical Games  Find the Winning Strategy 
November 4, 2009  Kristy Treewater
Danelle French 
Exploring Mathematics Using Cuisenaire Rods  
November 11, 2009  No Math Circle  Veteran’s Day  
November 18, 2009  Robin Cunningham, Dominican University of California 
Math Auction  Math Auction Problems 
November 25, 2009  No Math Circle  Thanksgiving  
December 2, 2009  Linda Green,
Mills College 
Counting Past Infinity  Bijection Problems 
December 9, 2009  Matt Kahle,
Stanford University 
Polytopes, Dimensions 2 and 3 
Polytope Problems 
December 16, 2009  Matt Kahle,
Stanford University 
Polytopes, Dimension 4 and Beyond 
Last meeting before winter break. 
January 6, 2010  Joshua Zucker  Coins in Twoland  Coins In Twoland Problems 
January 13, 2010  Chicha Lynch  Stellated Polyhedra  
January 20, 2010  Dave Aukly,
Mathematical Sciences Research Institute 
Permutation Puzzles
STARTING THIS WEEK 
Permutation Puzzle Problems 
January 27, 2010  Paul Zeitz,
University of San Francisco 
Combinatorics
Part 1 
Combinatorics Problems
Do as many of the “Not So Hard” ones as you can for next time. 
February 3, 2010  Paul Zeitz,
University of San Francisco 
Combinatorics
Part 2 

February 10, 2010  Paul Zeitz,
University of San Francisco 
Combinatorics
Part 3 
Meeting in Guzman room 104 this week 
February 17, 2010  Linda Green and others  NO MATH CIRCLE THIS WEEK
It’s Ski Week! 
BAMO Practice Problems 
Tuesday, February 23, 2010
3:00 pm – 7:00 pm 
Bay Area Math Olympiad (BAMO)
Math Contest will be offered in Guzman 302. 
Come for the whole time or drop in for an hour or two.
Pizza will be served at 5:30. 

February 24, 2010  Maia Averett,
Mills College 
Knots  
March 3, 2010  Linda Green,
Mills College 
BAMO Aftermath  
March 10, 2010  Alon Amit  Probability Paradoxes  
March 17, 2010  Gordana Matic
University of Georgia, visiting MSRI 
More on Knots  
March 24, 2010  Tatiana Shubin,
San Jose State University 
Fractions and Circles  
March 31, 2010  Ted Courant,
Bentley School 
Conic Sections and Kepler’s Laws,
Part 1 
Conic Sections Problems 
April 7, 2010  Ted Courant,
Bentley School 
Conic Sections and Kepler’s Laws,
Part 2 

April 14, 2010  NO MATH CIRCLE  Spring Break  
April 21, 2010  Vera Vertesi,
MSRI 
Mathematical Games  Guessing Games and Coin Games 
April 28, 2010  Alon Amit  Calculating by Cheating  
May 5, 2010  Joshua Zucker  Counting and Symmetry  Counting and Symmetry 
May 12, 2010  Linda Green,
Mills College 
Math Auction  
May 19, 2010  Linda Green,
Mills College 
Pizza and Watermelon  Last math circle for the year. Slicing Problems With Lines and Planes 
Archives 2009 – 2010
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