James Stigler, Ph.D.,nbsp;Professor of Psychology at UCLA and Director of the TIMSS video studies, is coauthor of Simon & Schuster's highly praised booknbsp;The Learning Gap: Why Our Schools Are Failing and What We Can Learn from Japanese and Chinese Education.nbsp;He lives in Los Angeles. nbsp;
James Hiebert is a member of a working group of the National Center for Research in Mathematical Sciences Education at the University of Wisconsin-Madison. The purpose of the Group is to consider the teaching and learning of the whole-number arithmetic in elementary school.