Authors & Presenters

David Pillar, EdD, a former Model PLC at Work® middle school principal, is assistant director at Hoosier Hills Career Center with the Monroe County Community School Corporation in Bloomington, Indiana.

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.

Maren Powers is an award-winning teacher, instructional coach and author. Because of her experience as a practitioner, she has learned how to do the work successfully. Maren is passionate about helping other educators implement, coach, and lead through the PLC process.

Nathaniel Provencio is associate superintendent in Prince William County, Virginia. Under his leadership, Minnieville Elementary School was recognized as a Model Professional Learning Community and was the 2019 winner of the prestigious DuFour Award.

Mary Ann Ranells, Ph.D., has over 45 years of experience in education as a teacher, principal, district administrator, and superintendent. She is passionate about coaching educators in professional learning communities to ensure high levels of learning for all.

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.

James Rawls serves as a principal in a large metropolitan school district in Georgia. His passion for education is evident through his experience of more than 20 years in the field.

Joshua Ray, EdD, is an educational speaker and author who has led the Professional Learning Communities (PLC) at Work® process at the elementary, secondary, and district level. He is passionate about building healthy school cultures, the work of collaborative teams, systems of support, and educator well-being.

Lisa M. Reddel is executive principal of school improvement in a large metropolitan school district in Northern Virginia. She has over 30 years of experience in schools and districts as a teacher, assistant principal, principal, district director, executive principal, and educational consultant.

Anthony Reibel hails from Adlai E. Stevenson High School in Illinois and is the current assistant principal for teaching and learning. Anthony is also coauthor of several books: Proficiency-Based Assessment, Proficiency-Based Instruction, Proficiency-Based Grading in the Content Areas, and Pathways to Proficiency which explore the relationship between proficiency, pedagogy, and evidence-based grading.