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Miriam Gamoran Sherin is an Associate Professor of Learning Sciences in the School of Education and Social Policy at Northwestern University.
Victoria R. Jacobs is an Associate Professor of Mathematics Education in the School of Teacher Education and a member of the Center for Research in Mathematics and Science Education at San Diego State University.
Randolph A. Philipp is a Professor of Mathematics Education in the School of Teacher Education and a member of the Center for Research in Mathematics and Science Education at San Diego State University.