Mystic Valley Charter School, no stranger to controversy, has again made the news for disparate treatment of students, the Globe reported two weeks ago:

Rebecca Fisk, who graduated last year from Mystic Valley Regional Charter School, implored administrators for months to let her start a gay-straight alliance club. It happened — only after the American Civil Liberties Union stepped in on her behalf.

Lucas Donohue, a former sixth-grade teacher at the Malden charter school, said in his three years there, he never witnessed immigrant students receiving the specialized training they needed to master English. At least six became so discouraged they left, he said…

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