Nancy C. Lavigne is an Associate Professor in the School of Education at the University of Delaware. Her research focuses on students’ problem solving and reasoning on tasks that require application of statistical knowledge, and using the research on students’ thinking to design environments that foster and enhance learning in STEM. She is a member of the International Society for the Learning Sciences, the American Educational Research Association, and the National Council of Teachers of Mathematics. She received her M.A., and Ph.D. degrees in Educational Psychology at McGill University in Montréal, Québec, Canada and conducted post-doctoral work at the Learning, Research, and Development Center (LRDC) at the University of Pittsburgh.Chrystalla Mouza is an Associate Professor of Instructional Technology in the School of Education at the University of Delaware. She earned an Ed.D., M.Ed, and M.A. in Instructional Technology and Media from Teachers College, Columbia University and completed post-doctoral work at the Educational Testing Service (ETS). Her research investigates teacher learning with regard to technology, applications of technology in K-12 classrooms, and teaching and learning outcomes in ubiquitous computing environments. Her work has been supported by the National Science Foundation, the Delaware Department of Education through the Higher Education Component of No Child Left Behind, and ETS. Dr. Mouza is the recipient of the 2010 Distinguished Research in Teacher Education Award from the Association of Teacher Educators and former Chair of the AERA Special Interest Group, Advanced Technologies for Learning. She serves on the editorial board of the Journal of Technology and Teacher Education and provides editorial assistance to numerous journals, conferences, and book publications including the Journal of the Learning Sciences, the Annual Conference of the AmericanEducational Research Association, and the Research Highlights in Technology and Teacher Education book series. Chrystalla Mouza is an Associate Professor of Instructional Technology in the School of Education at the University of Delaware. She earned an Ed.D., M.Ed, and M.A. in Instructional Technology and Media from Teachers College, Columbia University and completed post-doctoral work at the Educational Testing Service (ETS). Her research investigates teacher learning with regard to technology, applications of technology in K-12 classrooms, and teaching and learning outcomes in ubiquitous computing environments. Her work has been supported by the National Science Foundation, the Delaware Department of Education through the Higher Education Component of No Child Left Behind, and ETS. Dr. Mouza is the recipient of the 2010 Distinguished Research in Teacher Education Award from the Association of Teacher Educators and former Chair of the AERA Special Interest Group, Advanced Technologies for Learning. She serves on the editorial board of the Journal of Technology and Teacher Education and provides editorial assistance to numerous journals, conferences, and book publications including the Journal of the Learning Sciences, the Annual Conference of the American Educational Research Association, and the Research Highlights in Technology and Teacher Education book series.