Dr. Cathy Vatterott is professor emeritus of education at the University of Missouri–St. Louis, and a former teacher and principal. She is the author of four books, most recently Rethinking Homework: Best practices that support diverse needs, 2nd edition (ASCD, 2018),and Rethinking grading: Meaningful assessment for standards-based learning (ASCD, 2015). Dr. Vatterott has been researching, writing, and speaking about K-12 homework for over 20 years and is considered an international expert on homework. She first became interested in homework in the late 1990’s as the frustrated parent of a 5th grader with learning disabilities. Since then, she has presented her homework research to over 13,000 educators and parents in the United States, Canada, and Europe. Her work with schools has been the catalyst for her latest research on teen stress. Her most recent article, "The teens are not alright", appeared in the May 2019 issue of Educational Leadership.