(

a) Instruction shall be given in the elementary and secondary schools by appropriately trained instructors on drug education and the effects of the use of tobacco, alcohol, narcotics, dangerous drugs, as defined in

Section of the Health and Safety Code, and other dangerous substances.

For purposes of this chapter, an “appropriately trained instructor” is one who, based upon the determination of the site administrator, demonstrates competencies in interacting in a positive manner with children and youth; demonstrates knowledge of the properties and effects of tobacco, alcohol, narcotics, and dangerous drugs; and who demonstrates skills in conducting affective education, which include methods and techniques for helping children and youth to freely express ideas and opinions in a responsible manner and to gain an awareness of their values as they affect decisions related to drug use and misuse.

In grades through 6, instruction on drug education should be conducted in conjunction with courses given on health pursuant to subdivision (

f) of

Section 51210. In grades to 12, inclusive, instruction on drug education shall be conducted in conjunction with courses given on health or in any appropriate area of study pursuant to

Section 51220. Such instruction shall be sequential in nature and suited to meet the needs of students at their respective grade level. (

b) Services provided under this

section shall be in addition to, but shall not be duplicative of, services provided pursuant to

Article 2 (commencing with

Section 11965) of Part of Division 10.5 of the Health and Safety Code.