Dr. Warren Crown is the Associate Dean for Academic Affairs in the Graduate School of Education at Rutgers University. At Rutgers, he has concentrated on the professional development of mathematics teachers at both the elementary and secondary levels as well as on curriculum development projects in mathematics. Dr. Crown has won numerous awards for excellence in teaching as well as the Rutgers Presidential Award for Distinguished Public Service. His curriculum development efforts have resulted in many publications, both print-based and computer software. His two best-known technology products are IBM’s Math Concepts and Practice software and the award-winning Rutgers Mathematics Construction Tools program. He also has been a member of the authorship teams for many elementary textbook programs, including Scott Foresman - Addison Wesley Mathematics ©2008. He is an author for Scott Foresman - Addison Wesley enVisionMATH ©2009.