"Harvard Education Letter" is published bimonthly at the Harvard Graduate School of Education. This issue of "Harvard Education Letter" contains the following articles: (1) Telling Tales Out of Charter School: What Educators and Policymakers Can Learn from the Successes and Failures of Charters (Robert Rothman); (2) One Charter School's Formula for Success: Could It Work in a Large, Traditional Public School? (Robert Rothman); (3) "The Language Game of Math": Approach Draws on Language Arts Methods to Help English-Language Learners Solve Math Problems (Meg Gebhard, Andrew Habana Hafner, and Mary Wright); and (4) Getting to Tenth: Can Helping Your Students through Ninth Grade Keep Many from Dropping Out? The Answer May Lie in Data You Already Have (Michael Sadowski). Individual articles contain figures.