Charlestown High offers its students caring and supportive teachers, who not only provide exceptional classroom instruction during the school day but also stay after school on a daily basis to help students. We offer extensive tutoring after school. Our curriculum is strongly oriented towards preparing students for a college education. By the time the CHS students finish 10th grade, they will have completed Algebra 1, Algebra II, and Geometry. For the 11th and 12th graders, the school offers ten Advanced Placement courses. In addition, we provide extensive support services through our college and business partnerships (Harvard, Bunker Hill, Liberty Mutual and Bain & Co.).