Concerns about consumers' ability to manage their finances have triggered a range of proposals, including interventions aimed at elementary school students. The goal of these approaches is to improve lifelong economic decision making, but the evidence supporting their efficacy is thin. In this article, the authors discuss the trend toward elementary financial education and propose a framework for developing evidence-based programs. They emphasize the need for understanding the underlying mechanisms that facilitate the translation of student knowledge into the ability to make sound economic decisions over the life course. The framework illustrates the importance of articulating the intended mechanisms and effects of education programs. This focus on mechanisms will not only facilitate the evaluation of individual programs, but also the synthesis of evidence across interventions.