Juku are attended by students after school to go over subjects that were difficult to understand and to apply what one has just learned to solve more advanced problems. Many students attend juku not only to keep up with their schoolwork but to prepare for entrance exams to middle school and high school.
Many schoolchildren attend juku two to three times a week, spending an hour and half to three hours each time. Besides working on math drills and other exercises, juku students are taught how to solve problems and take practice exams when admission tests approach.
Some schoolchildren attend intensive courses offered at juku during their summer, spring, and winter vacations.
Photo courtesy of Yoyogi Seminar.