A variety of extracurricular activities are available in the form of clubs, field trips, and extended trips to give students a chance for fellowship, leadership, and teamwork.

Clubs
Club offerings are established based on interest; the more popular clubs include Bowling, Basketball, Horseback Riding, Soccer, Rock Climbing, Swimming, Golfing, Movie Club, Gaming, and Yearbook. Middle and high school students join together in each of these clubs, with the exception of Yearbook, which is reserved for high school students only. A faculty advisor is assigned to each. Due to the nature of the activities, many clubs take place off-campus. Basketball and swimming clubs meet at the YMCA, a block away from Commonwealth. Rock climbing, bowling and others take place at appropriate facilities; in cooperation with our parents association, the school provides transportation.

Clubs meet weekly on Wednesday afternoons from 2 pm – 3:40 pm (middle schoolers can leave at their usual departure time, or stay for the duration of the club meeting.) Middle school students can change their club choice once each quarter, high school students can change at the end of each semester.

Trips
Field trips are scheduled throughout the year to complement science, history, and English classes. Students visit the Holocaust Museum, WW II Memorial, Congress, the Supreme Court, the Inner Harbor and the Air and Space Museum, to name just a few.

Other trips, more social in nature, are also planned for the year. In the past, students have enjoyed skiing and overnight trips.