The program remains broad throughout middle school and high school. Students study five core courses until they graduate at the end of Grade 12.
Throughout High School, students gain credits for each of the courses that they take and are eligible for graduation upon fulfilment of graduation requirements.
Students graduate from ICS School with the internationally recognised High School Diploma. Students may sit SAT English and Math in Grade 11 in addition to Advanced Placement (AP) courses depending on where they wish to study after High School.