Secondary school is an educational institution that typically serves students aged 11 to 16 or 11 to 18, depending on the country. It follows primary education and prepares students for higher education or vocational training. In many places, secondary school includes grades 6th through 12th and offers a variety of subjects, including math, science, literature, and history. Students in secondary school often have the opportunity to choose elective courses that align with their interests, such as art, music, or technology. Assessment methods may include exams, projects, and presentations. Successful completion of secondary school usually leads to a diploma or certificate, which is essential for further education or entering the workforce.