He is especially known for workshops he has led around the world constructing very large models of four-dimensional polytopes (e.g., 1, 2, 3, 4, 5), These extra

He is especially known for workshops he has led around the world constructing very large models of four-dimensional polytopes (e.g., 1, 2, 3, 4, 5), These extraordinary activities expose participants to important conceptual ideas they might never experience otherwise... his alternative introductions to mathematical topics are often effective for engaging students who are not attracted to traditional mathematics teaching. http://www.georgehart.com/research/hartbiog.html http://www.georgehart.com/research/hartbiog.html