Barbara Cassidy


Barbara Cassidy teaches in the English Department at Downers Grove South High School. In her role, she serves as a literacy coach and teaches reading classes. She also teaches professional development sessions for teachers.

Before joining District 99 in 2010, she taught pre-school through graduate school students.

Barb attended the College of DuPage, North Central College, Northern Illinois University, and Aurora University. She also has master’s degrees in reading and educational leadership.

Having attended Downers Grove South herself, Barb has lived in the district most of her adult life.


Take a look inside Ms. Cassidy's classroom in her Opening Doors video!

Office Location

Downers Grove South High School

Mail Location

English & Communications