A major activity of the Collaborative is the development and administration of classes for students with low-incidence disabilities. A population is considered low-incidence when a community, by itself, cannot provide a program due to a variety of reasons. Some of the possible limitations are:

  • Insufficient numbers to form an adequate program
  • Insufficient numbers to provide a peer group
  • Disabilities requiring very specialized approaches
  • Available public school programs are not appropriate


CASE classrooms serve approximately 160 students.  Classes are located in 13 public school buildings within the CASE districts. These programs include programs for:

  • Students with Developmental Disabilities: Classes are housed in public schools located in Acton, Bedford, Carlisle, Lincoln, Littleton and Maynard.
  • Students with Autism Spectrum Disorders or students who benefit from instruction that supports communication and social development: Classes are located in Concord and Littleton.
  • Alternative Education: Elementary classes are located in Boxborough and Littleton. A middle school class is located in Concord, and Colebrook High School is in Acton.
  • Extended School Year: since the mid 1970's CASE has administered extended school year programs.  During the summer of 2012, well over one hundred children attended programs at the Russell Street School in Littleton, the CASE Alternative Middle School Program at Camp Triumph in Bedford, and Colebrook High School in Acton. Programs are designed to prevent substantial regression during summer recess while working toward IEP goals.