Publications
"Dynamic Visualization from Middle School through College," In D. Schattschneider & J. King (Eds.). Geometry turned on: Dynamic software in learning, teaching, and research. MAA Notes 41, MAA, 1997

"Dancing Origami Quilts: Dynamic Geometry-Inspired Designs," Published in the Proceedings of the 1999 International Society for Art, Mathematics, and Architecture Conference, 1999

Sketches for Student Investigation of Affine Transformations, presented to the Geometer's Sketchpad Users Group, Joint Mathematics Meetings, Washington, DC, January 2000

Dynamic Geometry Across the Curriculum, presented at the Education and Technology '99 Conference, Hampshire College, June 1999

Geometric Journeys with Unit Origami and Origami Quilts, presented at the NCTM Annual Meeting, San Francisco, CA, April 1999

Investigating Mathematics with Geometer's Sketchpad, workshop led for the SummerMath for Teachers Secondary Institute, July 6 -9, 1998

Algebra Meets Geometry, presented at the NCTM Annual Meeting, Minneapolis, MN, April 1997

Geometer's Sketchpad Session, organized for the Joint Mathematics Meetings, San Diego, CA, January 1997

Geometer's Sketchpad Session, organized for the Joint Mathematics Meetings, Orlando, FL, January 1996

Click HERE (for examples of origami and Logo creations and more rendered in Geometer's Sketchpad) and HERE (for a link to several geometry projects). Click HERE for a transformation of a tiling of the plane by equilateral triangles into a tiling by squares.