The board of education of every school district and the proprietor of a private or parochial school, in this state shall provide a suitable flag of the United States of America with staff or flagpole for every schoolhouse under the control and supervision of such board or proprietor. The flag shall be displayed in conformance with the instructions relating to flag etiquette, use and display adopted by the state board of education under Kan. Stat. Ann. § 72-5308, and amendments thereto.