Dr. Lee Stiff is the Past President of the National Council of Teachers of Mathematics, and is currently a Professor of Mathematics Education at North Carolina State University. He has served on NASA’s Inaugural Education Advisory Committee, the Mathematical Science Education Board of the National Research Council, and the Board of Directors of the Benjamin Banneker Association, among several other leadership activities. As a professor and co-author of K-12 mathematics textbooks, he has been innovative in the development of teaching strategies and tools that enhance the teaching and learning of mathematics in schools.