This report describes the work undertaken by the Tauck Family Foundation and Child Trends, a national leader in measuring children’s development and well-being, and provides the results of that work. Child Trends’ and the Foundation’s primary goal was to create tools that the Foundation’s investees could use to assess and monitor the extent to which the organizations are improving low-income students’ social and emotional skills associated with success in school and life. A secondary goal was to provide these tools and related guidance to other educators across the country who share a desire to strengthen students’ social and emotional skills as a strategy for supporting their success.