Leaders for a Movement: An Introduction to Professional Preparation and Development of Middle Level Teachers and Administrators, P. Gayle Andrews and Vincent A. Anfara, Jr. Part I: Professional Preparation and Development of Middle Level Teachers. Middle Level Teacher Preparation: Status, Progress, and Challenges, C. Kenneth McEwin, Thomas S. Dickinson, and Tracy W. Smith. When Puberty Defines Middle School Students: Challenging Secondary Education Majors’ Perceptions of Middle Level Students, Schools, and Teaching, Angela J. Lexmond. Preparing Middle Level Teachers in Field-Based Cohorts, Micki M. Caskey. Approaching and Avoiding the Middle: Teacher Preparation in New Zealand, C. J. Patrick Nolan, Ruth G. Kane, and Peter Lind. Professional Development and the Middle School: Tangled Threads, Thomas S. Dickinson, Deborah A. Butler, and M. Michele Pittard. Effective Professional Development: What Is It?, P. Elizabeth Pate and Katherine F. Thompson. Professional Development for Middl...