This resource was prepared in response to a request for information from a Race to the Top-Early Learning Challenge (RTT-ELC) State about which RTT-ELC States are using the Pyramid Model for Supporting Social Emotional Competence in Infants and Young Children. The State also requested information about other projects States have designed to support social and emotional competence in infants and young children. This information will be useful to other States as they look for strategies to support school readiness and long-term academic success of young children, particularly children with high needs. This response has information about the Pyramid Model for Supporting Social Emotional Competence in Infants and Young Children. It provides information from "2014 Annual Performance Report" (APR) data that the 20 RTT-ELC States submitted to the Department of Education and the Department of Health and Human Services in the spring of 2015, about RTT-ELC States that are using the Pyramid Model and about additional State projects that support social and emotional development. Appendix A gives specific examples from the individual RTT-ELC State APRs about States that are using the Pyramid Model. Appendix B has information about additional projects RTT-ELC States are supporting to promote positive social and emotional development. Individual State web pages were consulted to clarify or update information. A list of references and additional resources is provided.