We attend elementary, middle, and high school for, respectively, six years, three years, and three years. In elementary school we learn from one teacher for all subject areas. Pupils stay in the same classroom and spend most of time together. In middle school, we still stay in the same classroom, but teachers of different subject matters come to our classrooms. Middle school students have to study harder (then earlier grade levels) as they prepare for the high school entrance exam. Students who choose to go to college study additional four years before graduation. They start looking for a job in their senior year, so they get very busy in their final year of study.