Senior Years (Grades 9 to 12) are organized as credit courses. Course names carry a code for grade and type: 10 = Grade 9, 20 = Grade 10, 30 = Grade 11, 40 = Grade 12; F = foundation, S = specialized (25S/35S/45S are half courses). A diploma needs at least 30 credits, 17 of them compulsory. Grade 9 has five compulsory credits. New Grade 9 math courses with financial literacy are piloting in 2026/27 (required from 2027/28).