This document contains the executive summary of a report on a study of the efficacy of environment-based education programs. Focus is placed on using the environment as an integrating context for learning in all areas: general and disciplinary knowledge; thinking and problem-solving skills; and basic life skills such as cooperation and interpersonal communications. This report suggests that these programs produce better performance on standardized measures of academic achievement in reading, writing, mathematics, science, and social studies; reduced discipline and classroom management problems; increased engagement and enthusiasm for learning; and better pride and ownership in accomplishments. Research results are organized by major subject area and learning skill. (DDR)