Bruce Cohen

AIM Math Teachers' Circle Immersion Workshop: Tuesday, July 24, 2012

I used my computer to project this plan which points to various slides including two Geogebra demos. The Cavalier coin stack pictures are in a zip file. The worksheets have been compbined into one PDF file.

SFSU Sage Talk: Tuesday, June 7, 2011

For information on Sage see the Sage website. My notebook from today is here.

SFUSD Professional Development Talk

• an introduction to GeoGebra February 8, 2008

• an introduction to GeoGebra November 28, 2007

• Pointers for Intro to R and Gaussian Elimination January 30, 2009

• A Brief Introduction to the Real Projective Plane Asilomar 2010.
• On the Number of Primes Less Than a Given Magnitude Asilomar 2009.
• Polya's Orchard Visibility Problem Asilomar 2008.
• Revisiting Numerical Integration: Getting More from Fewer Points Asilomar 2007.
• Stick Tossing and Confidence Intervals Asilomar 2006.
• Steiner's Alternative: An Introduction to Inversive Geometry Asilomar 2005.
• Slicing Bagels: Toric Sections in Real and Complex Spaces Asilomar 2004.
• Trigonometry, Geometry, Algebra, and Complex Numbers Asilomar 2003 and Palm Springs 2004.
• Spline Functions: An Elegant View of Interpolation Asilomar 2002 and Palm Springs 2003.
• Gamma Function - n-sphere volume Asilomar 2001.
• Vectors (aka Teapot) Asilomar 2000 and Palm Springs 2001.

• Plane Sections of Real and Complex Tori or Why the Graph of y^2=x(x^2-1) is a Torus: PowerPoint version or pdf version Sonoma State - February 2006.

• An incredible tour of polyhedra.
• Teaching with original historical sources in mathematics.