Member Since: 2017
His scholarly interests include the study of mathematical thinking, especially mathematical problem solving and problem posing; the design and analysis of intellectually engaging and equitable mathematics instruction for students; innovative methods of assessing and reporting mathematics achievement; the practices of mathematics teaching and methods to enhancing teachers’ knowledge and effectiveness; and examining the interface between research and practice in education and enhancing productive interchange between education research and practice. He has directed research projects and published numerous articles, chapters, and books on these and related topics. He served as editor of the Journal for Research in Mathematics Education from 2000-2004 and as co-editor of The Elementary School Journal from 2008-2010.
He has received a number of recognitions for his work, including the 2004 Award for Outstanding Contributions of Educational Research to Practice from the American Educational Research Association, the 2007 Iris Carl Memorial Leadership and Equity Award from TODOS, the 2008 Judith Jacobs Lectureship from the Association of Mathematics Teacher Educators, the 2009 Lifetime Achievement Award from the National Council of Teachers of Mathematics, and the 2011 Senior Scholar Award from the American Educational Research Association Special Interest Group for Research in Mathematics Education. In 2016, he was selected as a Fellow of the American Educational Research Association.