Abt Associates has been providing evaluation and technical assistance to the U.S. Department of Education’s Mathematics and Science Partnership (MSP) Program and its projects since 2005. As part of this support, we look across the portfolio of projects funded by the MSP program to draw lessons on best practices. The current activity was a review of the final evaluations conducted on MSP projects. The purpose of this work was to investigate what could be learned about rigorous evaluation of MSP projects through an analysis of impact evaluations that are being conducted in MSP projects in their final year of funding.