<p <b <span Margaret (Peg) Smith </span </b <span is a Professor Emerita at University of Pittsburgh. Over the past two decades she has been developing research-based materials for use in the professional development of mathematics teachers. She has authored or coauthored over 90 books, edited books or monographs, book chapters, and peer-reviewed articles including the best seller <i Five Practices for Orchestrating Productive Discussions</i (co-authored with Mary Kay Stein). She was a member of the writing team for <i Principles to Actions: Ensuring Mathematical Success for All </i and she is a co-author of two new books (<i Taking Action:… Implementation Effective Mathematics Teaching Practices Grades 6-8 & 9-12)</i that provide further explication of the teaching practices first describe in <i Principles to Actions</i .<b </b </span <span She was a member of the Board of Directors of the Association of Mathematics Teacher Educators (2001-2003; 2003 - 2005), of the National Council of Teachers of Mathematics (2006-2009), and of Teachers Development Group (2009 - 2017). </span </p