Parents have the right and the responsibility to teach AND to direct others' teaching of their children.  The public education system should eagerly, fully, and transparently work in consort parents, especially when it comes to sexual education.  I think sex ed. belongs primarily to parents and should be done in the home. I also know that there are parents who may not feel equipped to direct it or who are irresponsible and neglect to direct it, so some non-co-ed sex ed in public schools may be appropriate.  That noted, parents should be fully informed prior to any sex ed in school and given ample time to review materials and information about who will be teaching the material.  Sex ed should not be conducted in co-ed classrooms or by persons of the opposite gender.  And sex ed must be age appropriate.  If other laws, regulations, and/or guidelines would prohibit posting the matrerial on a billboard or inside a mall, then that material should not be used in the classroom.  Pornographic material must be removed immediately and not ever be used again!  All curricula must be online for every parent to review and all parents must be allowed to opt out their children with an alternative meeting and activities provided so that there is no stigma surrounding children who have been opted out.