Martin Simon’s current research focuses on understanding the process by which students develop mathematical concepts through their mathematical activity, and how such learning can be fostered. Simon has also done extensive research on the development of mathematics teachers as they learn to teach mathematics with a conceptual focus. Simon has served as a professor of mathematics education at Penn State University and director of the Summer Math for Teachers program at Mount Holyoke College. He has served as principal investigator on five National Science Foundation projects, and was awarded the Distinguished Research Award by the Association of Teacher Educators in 2000, and a Career Achievement Award by the Penn State University College of Education in 2001. He earned his doctorate in mathematics education from the University of Massachusetts at Amherst in 1986.