Do I need to go to the Center every day?

Basically, you go to the Center twice a week. Each Center may have different Center hours but you can go there anytime you like during those hours. For the other days, you receive worksheets to study at home every day. At the Center, the class is not in a conventional school format in which everybody studies the same things: Each student studies the worksheets of their own Japanese proficiency level and receives instructions from their instructors.