Section 12 - Discrimination and harassment prohibited1. No student shall be subjected to harassment or bullying by employees or students on school property or at a school function; nor shall any student be subjected to discrimination based on a person's actual or perceived race, color, weight, national origin, ethnic group, religion, religious practice, disability, sexual orientation, gender, or sex by school employees or students on school property or at a school function. Nothing in this subdivision shall be construed to prohibit a denial of admission into, or exclusion from, a course of instruction based on a person's gender that would be permissible under section thirty-two hundred one-a or paragraph (a) of subdivision two of section twenty-eight hundred fifty-four of this chapter and title IX of the Education Amendments of 1972 ( 20 U.S.C. section 1681, et. seq.), or to prohibit, as discrimination based on disability, actions that would be permissible under section 504 of the Rehabilitation Act of 1973.2. An age-appropriate version of the policy outlined in subdivision one of this section, written in plain-language, shall be included in the code of conduct adopted by boards of education and the trustees or sole trustee pursuant to section twenty-eight hundred one of this chapter and a summary of such policy shall be included in any summaries required by such section twenty-eight hundred one.