Antarina S.F. Amir, SE, MSc, MBA, is the founder and president of HighScope Indonesia Institute. A graduate of the University of Pittsburgh and Instructor at the University of Indonesia, she is passionate about improving education in Indonesia and established the HighScope Early Childhood Education Program in Jakarta 1996.

After extensive study, consultation with education experts, and numerous visits to schools in the United States and other countries, she expanded the program to be a comprehensive K–12 education institute. The aim of the program is to provide integrated and inclusive learning experiences for children so that they become self-regulated leaders, equipped with the skills needed to be successful and thrive in their lives.

Thomas R. Guskey, PhD, is professor emeritus in the College of Education, University of Kentucky. A graduate of the University of Chicago, he began his career in education as a middle school teacher and later served as an administrator in Chicago Public Schools. He is a Fellow in the American Educational Research Association and was awarded the Association's prestigious Relating Research to Practice Award.

His most recent books include Implementing Mastery Learning; Get Set, Go! Creating Successful Grading and Reporting Systems; and What We Know About Grading: What Works, What Doesn't, and What's Next.