This is the summary of a presentation given at the Joint Mathematics Meetings, January 10-13, 1996, Orlando, Florida.

Technology currently used in linear algebra classes allows students to visualize various concepts from the course. Linear transformations are a key to understanding many of these concepts, yet their action is often difficult to picture. Software designed by the presenter for the HP-48G supercalulator shows students the effect of applying a linear transformation T: R^2 -> R^2 of their own choosing to any vector or polygon in R^2. The program produces a "movie" of the original object being transformed into its image. This software will be demonstrated and applied to questions about whether a transformation is one-to-one or onto, the rank of a transformation, determinants, eigenvalues, and eigenvectors.

Thomas W. Polaski, Winthrop University