MCAS: Presented by the Federation for Children with Special Needs. Wednesday, November 19th, 2008 7:15pm.  The Massachusetts Comprehensive Assessment System (MCAS) is a tool to measure progress in the Massachusetts Curriculum Frameworks or general curriculum. This workshop will help parents understand how their children with disabilities can participate in a meaningful way in MCAS. It will discuss accommodations and alternate assessments available so that students can demonstrate what they have learned.