The summer school courses and programs for which a school district may receive payment as provided in section 15.1-27-19 are:

1.     a.    Mathematics provided to students enrolled in any grade from kindergarten through eight; b.    Reading provided to students enrolled in any grade from kindergarten through eight; c.    Science provided to students enrolled in any grade from five through eight; and

d.    Social studies provided to students enrolled in any grade from five through eight; and 2.    Any other high school summer courses that satisfy requirements for graduation, comprise at least as many clock-hours as courses offered during the regular school term, and comply with rules adopted by the superintendent of public instruction.