| 8 | Middle School Mathematics Professional Development Impact Study: Findings After the Second Year of Implementation | Middle School Mathematics Professional Development Impact Study: Findings After the Second Year of Implementation | Michael S. Garet;Andrew J. Wayne;Fran Stancavage;James Taylor;Marian Eaton;Kirk Walters;Mengli Song;Seth Brown;Steven Hurlburt;Pei Zhu;Susan Sepanik;Fred Doolittle | U.S. Department of Education;Institute of Education Sciences;National Center for Education Evaluation and Regional Assistance | 2011/05 | | |