Analyzed data from a five-year followup of students in Tennessee's Student/Teacher Achievement Ratio (STAR) project, a four-year large-scale randomized examination of the effects of class size on academic achievement. Results suggest that class-size benefits persist for at least five years and remain large enough to be important to educational…

Literature on the relation between class size and student achievement is reviewed, and policy alternatives are suggested. Class size reduction strategies, focusing on individual or small group tutoring, are proposed for primary and secondary instruction. Implementing these strategies requires ambitious staff development programs. (SLD)