CASE, or the Cooperative Association for Special Education is a special education joint agreement comprised of seven school districts located in DuPage County, Illinois: Marquardt School District #15, Queen Bee School District #16, Glen Ellyn Public Schools District #41, Lombard Elementary School District #44, Glenbard Township High School District #87, Community Consolidated School District #89, and Community Consolidated School District #93. CASE is a 21st century organization that collaborates to provide special education services and support to our member districts based on the needs of those districts.