My son goes to school. In addition to it he also studies correspondence course for elementary school kids. It costs 5000 yen ($52.63 €39.37) per month. Every month text books and supplemental learning tools are sent from the correspondence education company. He studies math and Japanese language with those text book. Many of his friends take the course also. They like to receive interesting learning tools. My son likes to get them. But it is difficult for kids to study at home. My son studies the couse only when my wife or I forced him to do it.