Speaking of Portland....
In Oregon, standards call for teaching kindergarteners and first graders about reproductive body parts, using medically accurate terminology. By fourth grade, students should learn about ways to “treat all people with respect, including people of all genders, gender expressions and gender identities.”
By sixth grade, Oregon students are to be introduced to the definitions of different sexual and romantic orientations, including “heterosexual, bisexual, lesbian, gay, queer, asexual, two-spirit and pansexual.”
Birth control education starts in seventh grade, and safe sex strategies for different forms of intercourse follow in eighth grade.