It is maddening that Boston’s public schools must reach the precipice of collapse before they can wield one of the most important tools of school reform — a longer school day. This week, the School Department announced that it wants to turn the poorly-performing Marshall Elementary in Dorchester into an in-district charter, run by Unlocking Potential. In the simple act of going from a fully-unionized school to a charter, the school day would increase from six hours to eight.
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