The course of study for preschool, kindergarten, grades 1 through 6, and grades 7 and 8 of those elementary districts maintaining grades 7 and 8, shall be prescribed and enforced by the governing board. The governing board of any school district may cooperate with the county board of education and the county superintendent of schools in the development of the courses of study required by this section.

The development of any course of study by a school district governing board which involves the cooperation of the county board of education and the county superintendent of schools is a proper charge against whatever funds the county superintendent of schools may have for this purpose.