Dated term; in modern Japanese, 教室 is the standard word for 'classroom'. 教場 may still appear in older texts or institutional names.
See also: 教室
In the old records of this school, the notation '教場' remains.
detached classroom; small branch school
Composed of 教 (teaching) and 場 (place). The exact historical derivation is uncertain, but it is an older term for a teaching space, now largely replaced by 教室.