Authors & Presenters

Allison Lewallen, EdM, principal of Morris Middle School in Houston, Texas, has worked in education for more than 15 years as a teacher, instructional specialist, and assistant principal. As principal, her school was named a Model Professional Learning Community at Work® campus.

Pamela Liebenberg, EdD, has been an educator for more than 25 years. She has served as an award-winning teacher, assistant principal, principal, regional director, and district director supervising 35 schools in the Tuscaloosa County School System.

Dana Lillis serves as the director of teaching and learning for Carlisle Community Schools in Carlisle, Iowa. Dana’s passion is developing agency in teacher leaders and administrators to ensure they have the knowledge, skills, and tools to lead and support the PLC process.

Doug Lillydahl is director of communication arts at Adlai E. Stevenson High School in Illinois. He guides literacy interventions and ELA staff development, oversees assessment, and supports curricular and instructional evolution.

Jill Lizier is a districtwide director of curriculum, instruction, and assessment in Exeter, New Hampshire, and has previously served as an assistant principal and special education building coordinator, a curriculum coordinator for an elementary school, and first-grade teacher.

Gearl Loden is the superintendent of Nixa Public Schools. Under Dr. Loden’s leadership, Nixa Public Schools has been recognized as a Model PLC at Work® district and includes multiple Model PLC at Work schools.

Dave Ludy is a former principal of a Model PLC at WorkⓇ in Wisconsin. His work is focused on implementing the PLC process and he has extensive experience with rural school districts.

James Luttrell has more than 20 years of experience in education—from preschool to high school and from rural to urban. He specializes in data analysis protocols, improving school culture, and implementing professional learning communities (PLC) processes.

Colby Lynch has been a secondary educator for 15 years. He is currently the assistant principal of Douglas High School and has previously served as a high school principal, junior high assistant principal/activities director, and high school English teacher.

Kyle Machen, EdD, the principal of Benton Middle School in Louisiana, has been an educator for close to 20 years. Under his leadership, Benton Middle School was recognized as Louisiana’s first Model PLC.