Eric Twadell

Eric Twadell, PhD, is an educator and former superintendent of Adlai E. Stevenson High School District 125 in Lincolnshire, Illinois. He previously served the district as a social studies teacher, curriculum director, and assistant superintendent for leadership and organizational development. Twadell earned a master’s degree in curriculum and instruction and a doctorate in educational leadership and policy studies from Loyola University Chicago.

Twadell has written and coauthored professional works on professional learning communities, proficiency-based assessment, and evidence-based grading, including Evidence-Based Grading in the Content Areas: Principles and Strategies for Secondary Schools, Leading by Design: An Action Framework for PLC at Work Leaders, Pathways to Proficiency: Implementing Evidence-Based Grading, and Proficiency-Based Assessment: Process, Not Product.