Circles and Life Horizons are two of the most popular human sexuality curriculum for adults with intellectual disability.
Circles has two levels and two booster packs for $1999 which covers social distance, relationship building (Level 1), social distance expanded, relationship transitions (Level 2), recognizing/reacting to exploitation, learning appropriate protective behaviors (Abuse Booster), communicable disease, and STD/AID (STD booster). Again you can just buy specific levels. This is appropriate for all age groups.
Life Horizons is $799 for the two part DVD series which covers: parts of the body, sexual life cycle, human reproduction, birth control, sexual health (Level 1), building self-esteem, moral/legal/social issues male, moral/legal/social issues female, dating/love, marriage/other lifestyles, parenting, and preventing/coping with sexual abuse (Level 2). You can buy either level separately. Life Horizons is very useful. They come with a workbook that you can follow. It’s not necessarily the most engaging and there is sometimes inaccurate information. It’s geered towards adults but could also be used with older teens.
This company has several other family life education programs that you might find useful such as “Janet’s Got Her Period” a curriculum for people with severe intellectual disabilities.