Phone: (610)363-6400, Ext. 41533


Degrees and Certifications:

Sean Farrell

Mr. Farrell began teaching in DASD in 2002 at Lionville Middle School.  In 2004, he moved to Downingtown East High School where he has been ever since - teaching various Math courses throughout his time at DEHS.  He currently serves as the Math Buildling leader.