Geometry and the Imagination: Mathematics 199 at Princeton.

In the spring semester of 1990, the three of us organized and ran a new course at Princeton, called "Geometry and the Imagination" after the famous book by Hilbert and Cohn-Vosssen. This course grew out of a series of discussions and experiments with other courses, reflecting our general dissatisfaction with undergraduate mathematics education both majors and nonmajors. this was a course for freshman and sophomores which, in contrast to many if not all of the courses we have taught in this past, was really alive. There were many enthusiastic students who put energy into the subject because it was exciting to them, not because they need it for the exam or some other outside purpose.