Union urges teachers and students to ‘opt out’ of MCAS
Effort is part of push for overhaul of state accountability system
By 
THE DEBATE OVER standardized testing has sometimes come to feel like a battle of biblical proportions, so perhaps Deb McCarthy’s word choice is no accident. “In the beginning, I was definitely an avid supporter,” she said. “I was known as the MCAS guru in my building.” To say McCarthy has undergone something of a conversion(...)