This Information Capsule examines the background and history in addition to research findings pertaining to class size reduction (CSR). This Capsule concludes that although educational researchers have not definitively agreed upon the effectiveness of CSR, given its almost universal public appeal, there is little doubt it is here to stay in some…

Tennessee's four-year Project STAR provided one-third class size reduction in early elementary school. Small class students in all types of schools scored significantly higher than regular class students in reading and math. The article discusses lessons learned and cost-effective ways to reduce class size. (SM)