Using research to develop a solid educational foundation can accommodate diverse forces confronting educators, initiate systemic change, and help solve the pupil-teacher ratio (PTR)/class-size puzzle. Small K-3 classes are effective and can be efficient if changes are research-based and exploit class-size and PTR differences. (25 references) (MLH)

This collection of papers debates the merits of smaller class sizes and research methods used to evaluate the efficacy of this education reform measure. Four chapters focus on (1) "Understanding the Magnitude and Effect of Class Size on Student Achievement" (Alan B. Krueger), which discusses expenditures per student and economic criterion; (2)…