The Power of Two: Pairing Literacy and Numeracy Project is administered by the National Forum to Accelerate Middle-Grades Reform via funding from a U.S. Department of Education Supporting Effective Educator Development (SEED) grant. The 3-year project provides professional development and support in 4 states (California, Illinois, Michigan, North Carolina) for middle-grades teachers of mathematics and English language arts; two content areas identified as essential for keeping students on-track for high school graduation. CPRD is conducting the outcome evaluation using a randomized control study designed with intervention and controls schools.