Steve Leinwand is a Principal Research Analyst at the American Institutes for Research (AIR) in Washington, D.C. and has over 30 years of leadership positions in mathematics education. Steve has served on the Mathematical Sciences Education Board during the development and publication of “Everybody Counts”, as president of the National Council of Supervisors of Mathematics, and on the NCTM Board of Directors where he helped to review NCTM’s “Principles and Standards for School Mathematics.” Steve also served as Chair of the Writing Team for NCTM's Principles to Actions (2014). He has written numerous articles, books, and textbooks, including Sensible Mathematics: A Guide for School Leaders in an Era of Common Core State Standards (2012), and Accessible Mathematics: 10 Instructional Shifts that Raise Student Achievement (2009).