on geometry and math education. Preprints, 99 preprints from the center. The Topological Zoo, a collection of curves and surfaces. Geomview is supported through the dedicated Geomview website. Research During its time of operation, a large number of mathematical workshops were held at the center. Many well-known mathematicians visited the center, including Eugenio Calabi, John Horton Conway, Donald E. Knuth, David Mumford, William Thurston, and Jeff Weeks. There were over thirty postdocs, apprentices and graduate students. References Mathematics education in the United States National Science Foundation mathematical sciences institutes Research institutes in Minnesota University of Minnesota Visualization (research) Geometry education