Section 8. For the purposes of such courses, the department may, with the consent of the school committee or other proper officials and subject to rules and regulations by them prescribed, use the school or other public buildings and grounds of a town, but without interference or inconsistency with their customary uses; also the state college buildings and grounds, and, with the consent of the officers in charge, other school buildings owned or controlled by the commonwealth. It may also arrange for the use of such other buildings, grounds and facilities, paying such rent therefor, as the conduct of such courses may require.