Rob worked as a teacher and math coach in the New York City public schools for twelve years before getting his Ph.D. in 2012 at the University of Delaware. Rob has also worked as a private consultant and curriculum adviser with teachers, schools, and networks for schools looking to improve mathematics teaching and learning. Fran Arbaugh is an associate professor of mathematics education at Penn State University. A former high school math teacher, Fran received an M.Ed in secondary mathematics education from Virginia Commonwealth University in 1996 and a Ph.D. in curriculum and instruction (mathematics education) from Indiana University–Bloomington in 2000. Fran is president of the Association of Mathematics Teacher Educators. All Categories : Publications : Education Materials