Early childhood education--Oklahoma--Tulsa.;Education, Preschool--Oklahoma--Tulsa.;Education, Preschool--Case studies.;Early childhood education--Case studies.;Cognition in children.;Readiness for school.
(Working paper (Georgetown University. Center for Research on Children in the United States) ; no. 4);also posted by the Oklahoma State Department of Education, original date 2003 incorrect?;related title: later edition (OkDocs E1850.8 E27u 2007)