Sec. 3. As used in this chapter, "school property" means any property owned, rented, leased, or operated by:
(1) a nonpublic school (as defined in IC 20-18-2-12);
(2) a public school (as defined in IC 20-18-2-15); or
(3) an approved postsecondary educational institution (as defined by IC 21-7-13-6).