(7) The half unit of study requirement for health education specified in subparagraph (1)(viii) of this subdivision may be provided in grade 6, provided that in public schools such subject shall be taught by teachers certified in health education.

(1) ...Health education shall be required for all pupils in the junior and senior high school grades and shall be taught by teachers holding a certificate to teach health.

4. Instruction regarding alcohol, tobacco, and other drugs, in addition to continued health guidance in the junior high school grades and the senior high schools, shall be an integral part of a required health education course at each of these levels in the secondary schools curriculum. Students shall be required to demonstrate knowledge in the subject area through the use of a test, graded project or report, or any other means prescribed by the school authorities regarding alcohol, drugs, and tobacco. Any such course shall be taught by teachers holding a certificate to teach health.