John J Diehl

John J. Diehl is Chair of the Mathematics Department at Hinsdale Central High School in Hinsdale, IL. He has been a grader of AP Statistics exams and is a member of the AP Statistics Test Development Committee. He has led hundreds of workshops and state, regional, and national convention programs in all areas of secondary mathematics.

John J. Diehl is Chair of the Mathematics Department at Hinsdale Central High School in Hinsdale, IL. He has been a grader of AP Statistics exams and is a member of the AP Statistics Test Development Committee. He has led hundreds of workshops and state, regional, and national convention programs in all areas of secondary mathematics. See less