Anthony D. Pellegrini is Professor of Early Childhood Education at the University of Georgia, Athens, and editor of the SUNY series, Children's Play in Society.

• Acknowledgments 1. Children on the Playground at Recess: What's So Important? 2. Playgrounds and Children's Behavior at Recess 3. Theory and Method 4. Dimensions of the Playground and Children's Behavior: Implications for Social Cognition Development 5. The Effects of Recess Timing on Elementary School Children's Recess and Classroom Behavior 6. Longitudinal Relations between Playground Behavior and Cognition: Explorations in Social Dimensions of Cognition 7. The Rough-and-Tumble Play of Primary School Children: Contemporaneous and Longitudinal Relations 8. Preference for Outdoor Play during Early Adolescence 9. Longitudinal Relations between Social Networks and Adjustment to Middle School 10. Adolescent Boys' Rough-and-Tumble Play 11. Conclusions and Implications Index

Anthony D. Pellegrini is Professor of Early Childhood Education at the University of Georgia, Athens, and editor of the SUNY series, Children's Play in Society.

• Acknowledgments 1. Children on the Playground at Recess: What's So Important? 2. Playgrounds and Children's Behavior at Recess 3. Theory and Method 4. Dimensions of the Playground and Children's Behavior: Implications for Social Cognition Development 5. The Effects of Recess Timing on Elementary School Children's Recess and Classroom Behavior 6. Longitudinal Relations between Playground Behavior and Cognition: Explorations in Social Dimensions of Cognition 7. The Rough-and-Tumble Play of Primary School Children: Contemporaneous and Longitudinal Relations 8. Preference for Outdoor Play during Early Adolescence 9. Longitudinal Relations between Social Networks and Adjustment to Middle School 10. Adolescent Boys' Rough-and-Tumble Play 11. Conclusions and Implications Index

Anthony D. Pellegrini is Professor of Early Childhood Education at the University of Georgia, Athens, and editor of the SUNY series, Children's Play in Society.

• Acknowledgments 1. Children on the Playground at Recess: What's So Important? 2. Playgrounds and Children's Behavior at Recess 3. Theory and Method 4. Dimensions of the Playground and Children's Behavior: Implications for Social Cognition Development 5. The Effects of Recess Timing on Elementary School Children's Recess and Classroom Behavior 6. Longitudinal Relations between Playground Behavior and Cognition: Explorations in Social Dimensions of Cognition 7. The Rough-and-Tumble Play of Primary School Children: Contemporaneous and Longitudinal Relations 8. Preference for Outdoor Play during Early Adolescence 9. Longitudinal Relations between Social Networks and Adjustment to Middle School 10. Adolescent Boys' Rough-and-Tumble Play 11. Conclusions and Implications Index