Dr. Julie Sarama is the Kennedy Endowed Chair in Innovative Learning Technologies and Distinguished University Professor at the University of Denver. She conducts research on young children’s development of mathematical concepts and competencies, implementation and scale-up of curricula, professional development models and their influence on student learning, and implementation and effects of learning technologies (including those she has created) in mathematics classrooms. These studies have been published in more than 77 refereed articles, 6 books, 55 chapters, and over 80 additional publications. Dr. Sarama has directed over 25 projects funded by the National Science Foundation (NSF), the U.S. Department of Education’s Institute of Education Sciences (IES) and the National Institute of Health (NIH), the Bill and Melinda Gates Foundation and the Heising-Simons Foundation. She is currently conducting research on learning trajectories and developing tools and activities for teachers and caregivers who want to implement learning trajectories in early mathematics.