A Japanese language school teaches Japanese (by definition).
Toronto Japanese School was created in 1973.
Japanese School in Seoul was created in 1972.
Manila Japanese School was created in 1968.
Sheridan Japanese School was created in 1994.
Dubai Japanese School was created in 1980.
"Junior high school" (middle school) is 'chuugakkou' in Japanese.
Fortunately for the children of Japan, Japanese is the language of instruction used in Japanese schools.
Japanese school children study subjects such as Science, Math, English, Japanese, and History.
学校にいた is how you say I was at school in Japanese.
The New Jersey Japanese School was created in 1999.
Chicago Futabakai Japanese School was created in 1978.