Robert J. Marzano, PhD, is the cofounder and CEO of Marzano Research in Denver, Colorado. Throughout his forty years in the field of education, he has become a speaker, trainer, and author of more than thirty books and 150 articles on topics such as instruction, assessment, writing and implementing standards, cognition, effective leadership, and school intervention. His books include The Art and Science of Teaching, Leaders of Learning, On Excellence in Teaching, Effective Supervision, the Classroom Strategies series, Using Common Core Standards to Enhance Classroom Instruction and Assessment, Vocabulary for the Common Core, and Teacher Evaluation That Makes a Difference. His practical translations of the most current research and theory into classroom strategies are known internationally and are widely practiced by both teachers and school leaders. He received a bachelor’s degree from Iona College in New York, a master’s degree from Seattle University, and a doctorate from the University of Washington.