1.
classroom
A room in a school or educational institution where classes are taught. The physical space where learning takes place.
2.
class, course (as a place)
Can also refer to a learning class or course, as in 料理教室 (cooking class) or 英語教室 (English class).
Related Words
Related:
学校 (school)
Related:
生徒 (student)
Compare:
部屋 (room (general))
Related:
クラス (class)
Compare:
講義室 (lecture room)