Radnor Middle School Principal

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    Principal 

    David Wiedlich

    Dr. David M. Wiedlich 

    Dr. David M. Wiedlich joined RMS as Prinicipal in July 2019 from his former position as Assistant Principal of Lionville Middle School in the Downingtown Area School District, where he served since 2014 after 11 years as a Social Studies teacher at the school.

    Among his responsibilities at Downingtown, Dr. Wiedlich developed school-wide master schedules, revised the middle-level course selection process, and oversaw student discipline. He also assisted in revamping the school-level Mutli-Tier System of Supports; created a co-teaching model in Mathematics and English; assisted in the development of academic improvement programs; and served as a member of the Student Assistance Program team. Dr. Wiedlich was proactive in developing and facilitating more than 15 professional development sessions for teachers, including "The Integration of Student Feedback in Classrooms," "Grading Practices and Assessment Strategies in Middle School," and "Classroom Management and Communication." 

    Dr. Wiedlich also served on various committees in Downingtown, including the Cultural Equity Task Force, the Special Education Comprehensive Planning Committee, and the Board Curriculum Council. For two consecutive school years (2017-18 and 2018-19), he was a Pennsylvania Association of Elementary and Secondary School Principals (PAESSP) Robert Lavely Assistant Principal of the Year Award nominee.