64 (Ideally, such a framework would extend to infant and toddler care as well.) Further, educators and researchers are beginning to consider how to unite the most important and effective elements of preschool education with those of K–3.65 In this search for the “best of both worlds,” policy makers and educators can look to the expanding body of knowledge on the aspects of early learning and development that enable children to do well in school and the practices that should be more prevalent across the entire preK–3 span.66 First, research evidence on the predictors of successful outcomes for children (highlighted earlier) suggests a number of learning goals and experiences that in some form ought to be incorporated across preK–3. These include, for example, robust curriculum content; careful attention to known learning sequences (in literacy, mathematics, science, physical education, and other domains); and emphasis on developing children’s self-regulation, engagement, and focused attention. Also proven to yield positive results for children are practices familiar to early childhood educators, such as relationship-based teaching and learning; partnering with families; adapting teaching for children from different backgrounds and for individual children; active, meaningful, and connected learning