This report summarizes research conducted primarily over the past 10 years on how families' involvement in children's learning and development through activities at home and at school affects the literacy, mathematics, and social-emotional skills of children ages 3 to 8. A total of 95 studies of family involvement are reviewed. These include both descriptive, nonintervention studies of the actions families take at home and at school and intervention studies of practices that guide families to conduct activities that strengthen young children's literacy and math learning. (author abstract)