 The majority of the instruction is "kokugo" (Japanese language instruction, primarily from a racialized perspective founded on the notion that "Japanese" is a unique race).The remainder of the curriculum consists of other academic subjects, including mathematics, social studies, and sciences.In order to cover all of the material mandated by the government of Japan in a timely fashion, each school assigns a portion of the curriculum as homework, because it is not possible to cover all material during class hours.