Teachers' Circle Presentations

April 24, 2008
- Al Otto (Illinois State): Algebra Problem Solving 2
- Richard Lodholz: Pythagorean Triples
- Rajan Mehta (Wash U): Rubik's cube and other puzzles
- Brad Henry (Wash U): The Difficult Task of Ensuring Fair Elections, Activities
- Ann Podleski: Coloring Pascal's Triangle
- Blake Thornton: Greatest Common Divisor
April 15, 2008
- Bob McDowell (Wash U): Elementary Number Theory
- Anneke Bart (SLU): M.C. Escher's Circle Limits: an introduction to hyperbolic geometry
  SLU's Escher WikiBook
- Richard Lodholz: Magic Squares
April 1, 2008
- Michael Goldwasser (SLU): Map Coloring
- Brody Johnson (SLU): Chaos A Sound of Thunder (Ray Bradbury) Problems
- Blake Thornton: Card Tricks
March 18, 2008
- Ann Podleski: Monty Hall
- Richard Lodholz: Pascal and Pizza, Exercises,
- Richard Lodholz: Wythoffs Game.
February 23, 2008
- Al Otto (Illinois State): Algebra and Problem Solving
- Geir Arne Hjelle (Wash U): Matchbox Computers
- Richard Lodholz: Zomes and Geometry
- Blake Thornton: Prime Numbers
- Ann Podleski: Name Game and Permutations
February 21, 2008
- Blake Thornton: Modular Arithmetic and Doomsday
- Richard Lodholz: Zomes
- Bryan Clair (SLU):
  - Word Puzzles: Each puzzle is a back-to-back page. Cut out and fold so that the word is spelled out if you were able to look down through the sheets.
  - Jail Puzzle: Fold this so that Mussolini and Hitler are both facing out but in the jails (cut out the jail bars).
  - Number Puzzle 1: Fold this back-to-back sheet so that the numbers are in order.
  - Number Puzzle 2: Fold this back-to-back sheet so that the numbers are in order.
February 6, 2008
- Blake Thornton: Problem Solving Methods
- Richard Lodholz: Mathematics: Science of Patterns. Figurative Numbers
  - Followup, part 1
  - Followup, part 2
- John McCarthy: Euler Characteristic
- Ann Podleski: Buiiding Brick Walls: Counting Techniques, Number Patterns
- Richard Lodholz: Non-deterministic Mathematics, Weird Dice, Non-transitive dice
- Blake Thornton: Rational Tangles

Teachers' Circle Presentations

Washington University Middle School Mathematics Teachers' Circle