NAEYC Guidelines for developmentally appropriate practicesBuilding a foundation for Responsive, equitable, and safe educational spaces for children ages birth-4 must be based in research. The National Association of the Education of Young Children is a leading source for resources. Their guidelines for developmentally appropriate practice “reflect new research that underscores the importance of social, cultural, and historical contexts of development and elevates the need for active engagement through play, exploration, and inquiry in ways that support the whole child.”