Authors & Presenters

Tim Brown, an educational speaker and author, has 30 years of experience in education. As principal of elementary, middle, and high schools in Missouri, he led each to become a successful professional learning community.

A skilled district and school administrator with more than 29 years of experience in public education, Amy Clark is passionate about school improvement, believing this is accomplished through a strong collaborative team and an unwavering commitment to learning for all.

Chad Dumas, EdD, focuses primarily on collaborating to develop capacity for continuous improvement. An international educational presenter and award-winning researcher, he has led nationally recognized improvements for both students and staff.

John D. Ewald, EdD, is a former superintendent, principal, adjunct professor, and teacher. He has been an administrator and teacher at the elementary, middle, high school, and college levels.

As an author and a leader in the field, Sharon V. Kramer, PhD, emphasizes the importance of creating and using quality assessments as a continual part of the learning process. Dr. Kramer served as assistant superintendent for curriculum and instruction of Kildeer Countryside School District 96 in Illinois.

Kristi S. Langley, EdS, is the PLC director of a school district in Phoenix, Arizona. She has previously taught in elementary and middle schools and served as a principal at the pre-K, elementary, and middle school levels.

Pamela Liebenberg, EdD, has been an educator for more than 25 years. She has served as an award-winning teacher, assistant principal, principal, regional director, and district director supervising 35 schools in the Tuscaloosa County School System.

Michael J. Maffoni, an educator since 1987, has a diverse background that includes experience as a teacher, principal, and central administrator in a variety of districts in Colorado. He also teaches courses in educational leadership as an affiliate faculty member at Regis University.

Michael L. McWilliams is a veteran educator and presenter specializing in laying the foundation for effective implementation of the PLC at Work® process. He currently serves as the lead learner and principal of Savannah Elementary School, a Model PLC in Texas.

Kathryn Morem, EdD, has more than 25 years of educational experience, serving as an elementary school principal and director of professional development in Florida, as well as a Spanish/ESL teacher in Arizona and Switzerland.