A 17-year-old student in Brazil is typically enrolled in Grade 12, which corresponds to the final year (Year 3) of Ensino Médio (upper secondary high school). At this stage, students are completing their general academic or technical curricula, preparing to graduate with their high school completion certificate, and heavily studying for national university entrance examinations such as the ENEM (Exame Nacional do Ensino Médio) to secure placement in higher education degree programs.