Simple Interactions is a practice-based, relationship-centered, and community-supported approach to focus quality improvement efforts on the most essential active ingredient: the daily interactions between adult helpers and children. Its tools and materials are licensed as free, non-commercial, public domain resources to be used in a variety of developmental contexts. The development of the Simple Interactions approach included contributions from collaborative partnerships with multiple partners and institutions, and is supported by grants and contracts from The Heinz Endowments, Grable Foundation, Richard King Mellon Foundation, National Science Foundation, Pennsylvania Office of Child Development and Early Learning, Georgia Department of Early Care and Learning, Sprout Fund and other funding partners. Current leading partners including Dr. Dana Winters from the Fred Rogers Center for Early Learning and Children’s Media, Dr. Junlei Li from Harvard Graduate School of Education, and Dr. Tom Akiva from University of Pittsburgh School of Education.