(a) Purchasing, erecting, repairing, equipping, remodeling and enlarging school buildings and related facilities, including gymnasiums, auditoriums, lunch rooms, vocational training buildings, libraries, teachers’ homes, school barns, transportation vehicles and garages for transportation vehicles, and purchasing land therefor.
(b) Establishing and equipping school athletic fields and necessary facilities connected therewith, and purchasing land therefor.
(c) Providing necessary water, light, heating, air conditioning and sewerage facilities for school buildings, and purchasing land therefor.
(d) Paying part of the costs to be incurred in erecting, repairing, equipping, remodeling and enlarging school buildings and related facilities which are owned and operated by state-supported institutions of higher education as a demonstration or practice school attended by pupils, grades, or one or more, or parts of grades from the educable children of such school district pursuant to a contract or agreement between said institution and said school district.