The South Korean education system is known for its rigorous structure and high academic standards. Education is compulsory for children from ages 6 to 15, covering elementary school, middle school, and high school. Students typically attend school for six years in elementary, three years in middle, and three years in high school, with a strong emphasis on subjects like mathematics, science, and language. After high school, many students take the College Scholastic Ability Test (CSAT) to gain admission to universities. The system is highly competitive, with a focus on exams and after-school tutoring, known as hagwons, to enhance academic performance.