(1) Except as provided in subsection (2), the board of public education shall define and specify the basic instructional program for pupils in public schools, and this program must be set forth in the standards of accreditation. Other instruction may be given when approved by the board of trustees.
(2) The trustees of a school district shall ensure that all pupils in grades 3 through 12 receive instruction about the United States constitution and the pledge of allegiance.