Dr. Deborah J. Leong is the Co-founder and President of Tools of the Mind and Professor Emerita of Psychology at Metropolitan State University of Denver, where she taught for 36 years in the Psychology Department and in the Department of Education. Dr. Leong developed the Tools of the Mind approach with Dr. Bodrova with whom she has written numerous books, articles, and educational videos on the Vygotskian Approach to Psychology and the development of play. Dr. Leong has written several books on early childhood assessment with Drs. McAfee and Bodrova. She has her Ph.D. from Stanford University in Psychological Studies in Education, her M.Ed. from Harvard University, and her B.A. from Stanford University. She was a Fulbright Fellow to the University of Patagonia, Argentina.