The junior highs also have band, choir, and theatre arts.
A total of 110 schools failed to open yesterday, most of them elementary and junior highs, officials said.
With the junior highs and high schools, the district was the eighth most overcrowded of the city's 32 districts.
A junior high was added in 1978 and sixth grade in 1998.
After closing at the end of March, high schools and junior highs reopened last week.
Before the merger there were two junior highs and only one public high school.
Until 2011, all middle school were called junior highs and had grades 7-9.
By the time Kim is 15, she has attended 12 elementary schools and two junior highs.
The two former high schools were converted to junior highs, covering grades 7 to 9.
Before a new high school was open, these two junior highs both enrolled ninth grader students.