Do you look back at your sex ed classes and wonder WTF?! Are you a parent looking at your kid's curriculum and asking the same question? Sex Education 101 is less of a how-to of sex education and more of a why. Why does abstinence-only sex ed receive so much federal funding? Why do instructors show gross images of STIs to scare students? The answers, believe it or not, have a lot to do with folklore. Folklore-informally transmitted traditional culture-has a lot to say about sex. And it is often people's first point of contact with information and messages about sex. Folklore encompasses urban legends, moral panics, and rumors, which influenced early U.S. policies around sex, and also includes jokes, raunchy folk songs, and beliefs and slang about menstruation or STIs. And thus, folklore shapes sex ed classrooms and school sex ed policies. This book offers a series of engaging and thought-provoking essays for anyone interested in folklore about sex, the history of sex education, and how we keep repeating history from 100 years ago in our approaches today. Whether you are a scholar of books or a scholar of life (or both), you'll find something satisfying between the sheets of Sex Education 101.