Japanese school

Zaigai kyōiku shisetsu, or in English, Japanese international school or overseas Japanese school, may refer to one of three types of institutions officially classified by the Ministry of Education, Culture, Sports, Science and Technology :

Nihonjin gakkō, a full-time school outside Japan for the native speakers of Japanese which provides elementary and junior high school levels. Accredited by MEXT.
Hoshū jugyō kō or Hoshūkō, a supplementary school outside Japan. It offers a part of Nihonjin gakkō's curriculum after school hours or on weekends. Accredited by MEXT.
Shiritsu zaigai kyōiku shisetsu, a full-time overseas campus of a Japanese private school, thus run by a Japan-based private school corporation. They may include primary school, junior high school, and/or senior high school components. Each one is accredited by Japan's MEXT.