This is a still partial (reverse chronological) list of talks and presentations I've given, with slides where available electronically.

• Mathematicians working with teachers in California: The ACCLAIM Experience in the MAA Session for Professional Development for K-12 Teachers at the Joint AMS-MAA Math Meetings in San Antonio 12 January 2006.
• Mathematicians working with teachers in California: The ACCLAIM Experience in the California State University East Bay Math and Science Colloquium, 22 Apr 2005.
• The Lattice of Threshold Graphs and Split Graphs presented at the Richard Stanley 60th Birthday Conference held at MIT, 22 June 2004.
• Japanese Lesson Study: Teaching cultures in Japan and California at the Park City Mathematics Institute (sponsored by the Institute for Advanced Study), 15 July 2004.
• Mathematicians working with teachers in California: The ACCLAIM Experience at the Park City Mathematics Institute (sponsored by the Institute for Advanced Study), 13 July 2004.
• Math on the Web (A Presentation for Crimson Dot Project NExT Fellows at MathFest in Madison, 31 July 2001)
• Teaching Cultures in California, China, Japan. , a powerpoint presentation I gave at Malaspina University-College, Nanaimo, BC, Canada, 4 April 2001. (N.B. This file is 24MB, so downloading takes a while...)
• Nobody I've asked can tell me what the original combinatorial problem really was that corresponds to the following pictures from the famous Mathematica exhibit by the Earles. Here's some explanation and two pictures: Picture 1, Picture 2

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