Nancy C. Jordan is Dean Family Endowed Chair and Professor of Education at the University of Delaware. Her research interests are in children’s mathematical development and learning difficulties. In particular, she is doing research on the development of early number sense and how children learn fractions. She also has developed successful interventions for high-risk children. Professor Jordan has received funding from the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), the U.S. Department of Education Institute of Education Sciences (IES), and the Spencer Foundation. She is author or co-author of numerous articles in children’s math and has recently published her research in Journal of Educational Psychology, Child Development, the Journal of Learning Disabilities, Developmental Science, Developmental Psychology, and the Journal of Research on Mathematics Education, among many others. She is a fellow of the Association for Psychological Science. Professor Jordan holds a Bachelors degree from the University of Iowa, where she was awarded Phi Beta Kappa, and a Masters degree from Northwestern University. She received her doctoral degree from Harvard University and completed a post-doctoral fellowship at the University of Chicago. Recently, Professor Jordan served on the Committee on Early Childhood Mathematics of the National Research Council of the National Academies and on the panel of IES Practice Guide on teaching math to young children.