Aggression and cooperation, which represent two critical features in the child's social domain, have one element in common: they both emerge from children's strong developmental push to initiate and maintain relationships with other children. Aggression is defined as any intentional behavior that results in physical or mental injury to any person…

Current research on adolescence provides plenty of facts about delinquency, unemployment, and illegitimacy, yet tells us little or nothing about the inner life of adolescents. In an attempt to provide more information, the research reported on here describes the "periods" of adolescence as they are structured in the various…

Those who advocate for developmentally appropriate practice (DAP) do so based on the conviction that these classroom practices enhance children's development and facilitate learning. This ERIC Digest examines recent research on DAP and social-emotional and cognitive development, and describes what we have learned about DAP in early childhood…