Dr. Spencer Kagan is an internationally acclaimed researcher, presenter, and author. He has published over 20 books which have now sold over 1 million copies. His books are translated into many languages. Dr. Kagan received his doctorate in clinical psychology from UCLA, was a clinical psychologist, and a full professor of psychology and education at the University of California. He has received two honorary doctorates. Dr. Kagan is the principal author of the single most comprehensive book for educators in each of six fields: cooperative learning, brain-friendly teaching, Social-Emotional Learning (SEL), multiple intelligences, classroom discipline, and classroom energizers. Dr. Kagan developed the structural approach to instruction based on hundreds of popular brain-based, cooperative learning, and multiple intelligences structures like Numbered Heads Together, Timed Pair Share, and Number Group Mania! Dr. Kagan is the founder and co-director of Kagan Publishing and Professional Development, one of the largest educational training companies in the world with franchises in over a dozen countries. Dr. Kagan has provided workshops and keynotes in over 40 countries.