Section 803 - Instruction in physical education and kindred subjects1. All pupils above the age of eight years in all elementary and secondary schools, shall receive as part of the prescribed courses of instruction therein such physical education under the direction of the commissioner of education as the regents may determine. Such courses shall be designed to aid in the well-rounded education of pupils and in the development of character, citizenship, physical fitness, health and the worthy use of leisure. Pupils above such age attending the public schools shall be required to attend upon such prescribed courses of instruction.2. The board of education or trustees of every school district regularly employing twenty or more teachers shall employ a teacher or teachers qualified and duly licensed under the regulations of the regents to give such instruction; in every other district of the state, they shall require such instruction to be given by the teacher or teachers regularly employed to give instruction in other subjects or by a teacher or teachers qualified and duly licensed under the regulations of the regents.3. The boards of education or trustees of two or more contiguous districts in the same supervisory district, however, may join in the employment of a teacher qualified and duly licensed under the regulations of the regents to give such instruction; and the salary of such teacher and the expenses incurred on account of such instruction shall be apportioned by the district superintendent among such districts according to the assessed valuation thereof, and as so apportioned shall be a charge upon each of such districts.4. Similar courses of instruction shall be prescribed and maintained in private schools in the state and all pupils in such schools over eight years of age shall attend upon such courses; and if such courses are not so established and maintained in any private school, attendance upon instruction in such school shall not be deemed substantially equivalent to instruction given to children of like ages in the public school or schools of the city or district in which the child resides.5. It shall be the duty of the regents to adopt rules determining the subjects to be included in courses of physical education provided for in this section, the period of instruction in each of such courses, the qualifications of teachers, and the attendance upon such courses of instruction.6. The physical education hereinbefore provided for, may be given, when practicable, in any armory of the state where such armory is within convenient distance from the school, and at such times and in such manner as not to interfere with the regular military uses of such armory. The commanding officer in charge of any such armory shall, upon application made by any board of education or trustees of the several cities and school districts within the state, permit access to any such armory, for the purposes herein mentioned.