Professional Learning Communities at Work®

Tiffany Mathews has over 16 years of experience in education. Throughout her career, she has worked as a teacher, department chair, assistant principal, and principal at the elementary, middle, and high school levels.

Carla Braun, EdD, currently serves as the director of continuous school improvement and professional learning in Westmont, Illinois, a K–12 school district. She is an experienced principal, professional development provider, interventionist, and elementary teacher.

Amy Miller has over 20 years experience in secondary education and is currently the career and technical education (CTE) director in Richland School District.

Jalal Masri is the professional learning community coach at Bernice Ayer Middle School in San Clemente, California. In this role, he leads sitewide professional learning, supports teacher team collaboration, and oversees the school’s intervention system.

Dr. Derek Voiles is the assistant principal at Lincoln Heights Middle School in Morristown, Tennessee. With more than 15 years of experience in education, he emphasizes collaboration as a tool for better learning, particularly through professional learning communities.

Reboot, energize, and simplify the professional learning communities (PLC) process with The 15-Day Challenge! This practical guide brings the PLC process to life through seven simple unit design steps, providing a clear road map for creating a guaranteed and viable curriculum. Designed for results, this challenge helps educators navigate the PLC journey with clarity and impact.

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.

Brian K. Butler is an educational presenter with over 30 years of experience who has worked with thousands of schools throughout the U.S.A., Australia, and Canada, presenting on the Professional Learning Communities at Work^® and Response to Intervention at Work^™ models. Brian is a retired principal who last served at Mason Crest Elementary School in Fairfax County, Virginia in 2017. Under Brian’s leadership, Mason Crest received Solution Tree’s first annual DuFour Award in 2016.

With over 30 years of experience in K–12 education, author and education expert Jeanne Spiller is an associate with Solution Tree, supporting schools and districts through workshops, coaching, and collaborative initiatives to enhance instruction, foster innovation, and promote equity.

Karen Power is an educational presenter and a former teacher, principal, superintendent, and senior advisor for professional learning and leadership. Karen has implemented the PLC process both as a principal and as a superintendent, and for several years, she has supported collaborative work in schools to meet the needs of students.