The classroom becomes a laboratory of adolescence. A kindly science teacher dismantles myths with the slow patience of someone used to threading facts through fear. Diagrams of reproductive systems on the whiteboard are drawn with the same calm care as the lab safety rules: direct, factual, and without drama. She tells them the mechanics — hormones, glands, and the choreography of cells — but she also names the harder things: mood swings are real, attraction is normal, shame is not inevitable. In one scene she passes around a list of reliable resources — clinics, counselors, and books — and watches faces both skeptical and relieved.