Lexi, 30, danced professionally for six years in Las Vegas before moving back to her hometown of Tucson and picking up substitute work. She covered AP Government and the back row — three seniors who had collectively taken zero notes since September — each produced a full page of bullet points within the first twenty minutes. (One of them borrowed a pen from a girl three seats away. He's never spoken to her before. They're dating now. This is a true cascade effect.) The lesson was about the Electoral College. Lexi says she wasn't even trying to be engaging, she was just reading off the teacher's slides. Sure, Lexi. Sure. The kicker? One of those seniors went on to ace the AP exam. He credits Lexi. His parents sent a fruit basket to the school.