1. PAUL COBB is a professor of mathematics education at Vanderbilt University, Peabody College, Box 330, Nashville, TN 37203; . His interests are in classroom instructional processes and learning policy
2. KARA JACKSON is a postdoctoral research fellow in the Department of Teaching and Learning at Vanderbilt University, Peabody College, Box 330, Nashville, TN 37203; . Her interests are mathematics learning, socialization, and identity development across contexts and how to support teachers to provide access to equitable learning opportunities in mathematics for all students