High school is the final stage of secondary education, typically covering Grades 9 to 12, and includes students aged 14 to 18 years. It plays a critical role in preparing students for higher education, vocational training, or employment. At this level, students study both core subjects and elective courses to develop deeper academic knowledge and explore their interests. High school also emphasizes personal growth, decision-making, and career readiness, helping students shape their future paths.