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

Weekly Schedule

Like most facets of a Commonwealth education, the “typical" student schedule is anything but.
You might come to school early to rehearse with your chamber music trio, play a few rounds of chess at lunch, or plot out a novella during your weekly meeting with your faculty advisor. The next day, you might spend your free periods studying at the Boston Public Library or grabbing a coffee with friends on Newbury Street. On any given afternoon, you might head off to practice on fields or stages—though, if you’re like many of our students, you may find yourself reluctant to leave...
  • The building opens at 7:30 a.m., and the school day begins at 8:30. Classes end at 2:45 p.m. on Monday, Wednesday, and Friday; 3:25 on Tuesday; and 3:45 on Thursday. See below for sample freshman and sophomore schedules.
  • Most classes are 40 minutes long, but students have one double block per week for science labs.
  • New students typically take five classes and an art course. All ninth graders are enrolled in a year-long seminar that rotates through multiple topics, including City of Boston and Health and Community.
  • The whole school gathers every morning  for a snack and announcements. We also serve lunch daily, and our dining program offers a wide range of healthy and delicious options.
  • Students participate in athletics after school on Monday, Wednesday, and Friday. Where and when you practice and play depends on what you choose.
  • Clubs usually meet once a week during lunch, but a few meet after school. Offerings include Model UN, Model Congress, Debate Team, Commonwealth Cares (our service and volunteering group), Gender-Sexuality Alliance, Math Team, Environmental Club, Robotics Club, Newspaper, Yearbook, Evil Genius Club, Chess Club, and Politics Club.
  • If you’re involved in our theater productions, you’ll typically rehearse after school on Tuesday and Thursday. Most of our performances take place at the Cambridge Multicultural Arts Center. 


Real-World Student Schedules

At Commonwealth, students pursue their unique interests with full force, whether via rigorous courses or diverse extracurriculars. Get a sneak preview of real student schedules on our blog.

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Sample Freshman Schedule (click to enlarge)




Sample Sophomore Schedule (click to enlarge)