Dr. Leslie Trimmer

Dr. Leslie Trimmer headshot

Dr. Leslie Trimmer

Assistant Professor of Practice, Educational Administration

School: Graduate School of Education and Human Development

Department: Educational Leadership


Office Phone: (703) 299-0198

Dr. Trimmer has spent her career in education working with students to help empower them to learn and craft meaning of information they have gained in academic and non-academic arenas.  She is passionate about creating equity in the classroom and working with future administrators to help them incorporate research and best practices as they build authentic learning environments.  Dr. Trimmer has presented educational workshops on the local, state, and national level for over fifteen years on the topics of collaborative learning, differentiated instruction, and the collaborative study of student work.

Prior to joining the faculty at the George Washington University, Dr. Trimmer spent over thirty years as a teacher, principal, curriculum director, and assistant superintendent in school districts in Pennsylvania, and most recently she worked as the Field Experience Coordinator and an adjunct faculty member at York College of Pennsylvania. Dr. Trimmer holds a B.S. in Police Corrections and certification in Social Studies Secondary Education from York College of Pennsylvania, a M.Ed. in Teaching and Curriculum from The Pennsylvania State University, and an Ed.D. in Educational Leadership from Immaculata University.

Ed.D., Immaculata University

M.Ed., The Pennsylvania State University

B.S., York College of Pennsylvania

  • Instruction
  • Leadership
  • Curriculum Development
  • P-12 School Administrator (building level and central office)
  • Professional Development (development, delivery, assessment)
  • November 2023Drs. Leslie Trimmer and Abe Tekleselassie presented, “Enhancing Leadership Course Development with an Equity-Centered Focus,” at the International Society of Educational Planning 2023 Annual Conference.