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Columbia International School runs a co-curricular program that extends learning beyond the classroom. Elementary clubs include Art and Newspaper, with Ballet and Violin also listed among arts activities. Junior High offers Music, Yearbook, Sports, Photo, Games, Outdoor Adventure, Baseball, Drama, and Badminton clubs to support collaboration and critical thinking.
Arts and creative activities are available through after-school offerings. Elementary students participate in Art and Ballet, with Violin listed as an arts option. In Junior High, students can join Music, Drama, and Photography-related activities, along with Yearbook and other arts opportunities.
Japanese Kokugo lessons are offered every day up to Grade 8, supporting language development. The school also reports a diverse student body with more than 21 nationalities, reflecting an international community. Canada Day is observed as part of cultural engagement on the calendar.
Social and hobby activities are embedded in the co-curricular program. Junior and Elementary clubs include Music, Yearbook, Sports, Photo, Games, Outdoor Adventure, Drama, and Badminton, with seasonal sports such as futsal, volleyball, and basketball for boys and girls. These clubs provide peer-based activities beyond regular classes.
Community service opportunities are part of the extended program. The Summer School calendar includes Habitat for Humanity as a service activity, reinforcing outreach and community involvement. The program also offers open campus events and information sessions for prospective families.
Leadership and post-secondary preparation are supported through a dedicated guidance structure. A Guidance Coordinator oversees guidance and college planning, and graduates pursue higher education worldwide under the Ontario curriculum.
The campus features two gymnasiums and a playing field to support physical education and team sports. Seasonal inter-school sports include futsal, volleyball, and basketball for both boys and girls. A boarding dormitory is available for boarding students, contributing to a stable well-being-focused environment.
Columbia International School is a K–12 school in Tokorozawa, west of Greater Tokyo, with access via Higashi-Tokorozawa Station on the JR Musashino Line. Teaching follows the Ontario (Canada) curriculum and all courses are taught in English, with Japanese (Kokugo) lessons offered daily up to Grade 8. The school offers a boarding program, with a dormitory located about an 8-minute walk from campus and supervised daily by a resident dorm supervisor. Co-curricular options listed by the school include activities such as art, newspaper, soccer, music club, yearbook club, photo club and drama club. For older students, the school notes that the Grade 11 Guidance Overseas Trip (G.O.T.) is a compulsory activity.