No property that has heretofore been acquired by, or conveyed or granted to, any school district for school purposes, or which may hereafter be acquired by any school district for school purposes shall be considered as abandoned until the board of school directors of such district shall pass, by vote of the majority of members of the board, a resolution declaring it to be the intention of such district to vacate and abandon the same, whereupon all right, title, and interest of such district in such premises shall be fully terminated.
24 P.S. § 7-708