MCAS Testing Dates Posted byanitapgo April 28, 2017April 28, 2017 MCAS testing has begun. Remaining test dates as follows: ELA MCAS: Grade 6 on May 2. Math MCAS: Grade 5–May 11, 12; Grade 6–May 18,19; Grades 3 and 4–May 23,24. Science MCAS: Grade 5–May 16 and 17. Share this:FacebookTwitterEmailPrintLike this:Like Loading...