Co-ed independent day school in Boston's Back Bay for academically adventurous students in grades 9–12

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What I really love about Commonwealth: You have a decent-sized sports crowd, you have a humanities crowd, you have a STEM crowd. And my family loved the small size, how teachers really focused on the students and really cared about their students. I think my expectations have been exceeded. I love the teachers here. I love the students.” Romen '23
Group of four teenagers of various ethnicities smiling and standing arm-in-arm while holding pink ceramic bunny sculpture