Visualization in Mathematics using Geometer's Sketchpad
Jon Wilkin, Northern Virginia Community College. www.nvcc.edu/home/jwilkin
These models require the user have The Geometer's Sketchpad, version 4, installed on their computer. The software is available from the publisher at www.keypress.com
Linear Algebra models - written & contributed by Bryan Dorner, Pacific Lutheran University
These model 2x2 matrix transformations in the plane. The text document (in Word format) explains the models, which Dr. Dorner created as labs for his students.