Authors & Presenters

Tim Brown is an internationally recognized presenter and practitioner who specializes in helping school leaders and teachers align their school improvement efforts across an entire campus and/or district.

Shawn Creswell, author and presenter, has over 25 years of experience in education and has served as a classroom teacher, assistant principal, principal of two campuses, and district director of curriculum, instruction, and assessment. She is currently a school board member in her community.

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.

Paul C. Farmer is an experienced practitioner who started in education as a career and technical education (CTE) teacher. He has held multiple leadership roles, including department chair, teacher specialist in career and technology education, assistant principal, principal, and project director of instructional technology integration.

Lorrie Hulbert has more than 30 years of experience as a public school teacher, interventionist, and administrator in New York State.

Karen Johnson is the coordinator of Language Acquisition for the Pleasanton Unified School District Pleasanton, California. She is passionate about the topics of equity, inclusion, and ensuring high levels of learning for all students.

Marsha Jones, EdD, is former executive director of curriculum and instruction at Pasadena Independent School District near Houston, Texas. Her experience includes teaching grades 1–8 and serving as elementary assistant principal, elementary principal, middle school principal, and district-level administrator. Under Marsha’s leadership, Pasadena ISD became the largest Model PLC at Work® district in North America and Canada.

With a rich background in educational leadership, Jed has served as the middle school principal for the school district of Onalaska in Onalaska, Wisconsin for the last 15 years. He is passionate about enhancing the learning experience by implementing PLC at Work® and RTI at Work™ strategies.

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.