"Harvard Education Letter" is published bimonthly at the Harvard Graduate School of Education. This issue of "Harvard Education Letter" contains the following articles: (1) Integrated Data Systems Link Schools and Communities: Researchers Combine School and Non-School Data to Inform Interventions and Policy (Patti Hartigan); (2) Student-Directed Learning Comes of Age: Teachers Adopt Classroom Strategies to Help Students Monitor Their Own Learning (Dave Saltman); and (3) The Common Core State Standards: Challenges for Assessment (W. James Popham). Online version may contain additional articles.