Sexuality may very well be much better taught at home. However, the teacher might wish to continue informing all parents of the books being used and might volunteer to share or loan these books to interested parents. A teacher might also wish to share knowledge about children's needs at certain developmental stages and how these vary as the child matures. He might also inform parents about inaccuracies contained in children's books or overheard on the playground. Finally, he might wish to share what the experts say about the range of attitudes toward sexuality and sexual practices.
Children go through essentially three stages.
Up until about the age of seven, children are in the dormant stage. They want information about anatomy and reproduction. But essentially they seem not to be emotionally involved. But some experts suggest that both the slang and the scientific terms should be used, the latter being stressed as public and the former as private language. Young children, of course, are sexual beings from the beginning, frequently engaging in masturbation unless shamed by an adult.