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Sheri Costello
Assistant Principal High School at Lisle High School
Sheri Costello is a dedicated and passionate educator with 24 years of extensive teaching and administrative experience in high schools.
Her expertise includes team leadership, curriculum analysis, effective communication, data analysis, and strategic planning.
Sheri holds a Master of Arts in Educational Leadership and Administration from DePaul University and a Bachelor of Arts in Mathematics from Saint Mary's University of Minnesota.
She has served as an Assistant Principal at Lisle High School and held similar roles at East Aurora High School, Elmwood Park High School, and Ridgewood High School.
Sheri is known for her self-driven, detail-oriented approach and proficiency in Excel and Student Management Systems.
For collaboration opportunities or inquiries, Sheri can be reached at costello.sheri@gmail.com or (847) 807-9699.
