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Mary Mazariegos has worked in a variety of education roles, including English teacher, instructional coach, ELL facilitator, secondary English curriculum coordinator, and principal. She was integral in the work at U.S. Grant High School in Oklahoma City.

Keri Rathbun, EdD, is the director of Coordinated School Health and Career Counseling for Fort Smith Public Schools, Arkansas. She has worked in education for more than 20 years and served as an administrator at the middle and high school levels.

Kendra Bell, PhD, retired from Peoria Unified School District in Arizona in 2022 after serving as chief academic officer for the district. Throughout her career, Dr. Bell has emphasized the importance of continual improvement through professional learning communities.

Leticia Amalla has 30 years of educational experience in the West Texas area. Her areas of expertise include gifted and talented, bilingual, and special education. She experienced tremendous success as a turnaround school principal, leveraging every aspect of the professional learning communities framework as one of the vital components of school improvement.

Amy Moore leads Deer Valley Unified School District’s PLC vision and mission as the professional learning manager. In May 2021, Deer Valley Unified School District was recognized as a model PLC district.

Chad M. V. 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.

Michael L. McWilliams is a fierce advocate for classroom teachers, school leaders and staff members who work daily to ensure all students learn at high levels. Michael has spent the last 28 years as an educator, with 20 of those years serving as an elementary school principal. Equipping and empowering others to be the best version of themselves is his life’s mission. He specializes in developing the foundation needed for effective implementation of the Professional Learning Communities at Work® process.

Kim Nichols, EdD, is former assistant superintendent in Ringgold, Georgia. Under her leadership, Catoosa County Schools was named the first Model PLC District in Georgia and twelve schools have become Model PLCs.

Emily Feltner, EdD, has over 30 years of experience at all levels in education. She works with schools and districts in the areas of leadership, literacy, and school improvement.