Professional Learning Communities at Work®

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.

Cassandra Erkens is the author of eight books with more currently in progress, as well as chapters in several anthologies. Additionally, she is a facilitator, a trainer of trainers, an educator, and a coach. Her work focuses on educational topics, including assessment, instruction, leadership, school improvement, and professional learning communities.

Eric Twadell, PhD, is superintendent of Adlai E. Stevenson High School in Lincolnshire, Illinois. He has been a social studies teacher, curriculum director, and assistant superintendent for leadership and organizational development.