For many decades Americans have been concerned about the effective teaching of mathematics, and educational and political leaders have often advocated reforms such as a return to the basics and strict accountability systems as the way to improve mathematical achievement. International studies, however, suggest that such reforms may not be the best path to successful mathematics education. Through this qualitative case study, the authors explore in depth the French approach to teaching elementary mathematics, using interviews, classroom observations, and documents as their data sets. They apply three theoretical frameworks to their data and find that the French use large-group instruction and a visible pedagogy, focusing on the discussion of mathematical concepts rather than on the completion of practice exercises. The national curriculum is relatively nonprescriptive, and teachers are somewhat empowered through site-based management. The authors conclude that the keys to French success with mathematics education are ongoing formative assessment, mathematically competent teachers, policies and practices that help disadvantaged children, and the use of constructivist methods. They urge comparative education researchers to look beyond international test scores to deeper issues of policy and practice.