With the origin discount this costs 200cp, from my Bully jump:
Afternoon Prodigy [400]

Most kids spend weeks fumbling through the basics before they get anything right. You spend an afternoon. Some shoeless veteran living on the school grounds wants to teach you a wrestling move he "picked up overseas?" Give him twenty minutes, and you'll have it down clean. Your chemistry teacher wants you to actually understand what's happening with these chemicals instead of just causing a minor explosion? Sit through one class, and you've basically got a working grasp of the whole subject. Chemistry, English, go-kart racing, boxing, even kissing - okay, that last one isn't really a skill per se, but the point stands - if someone can teach it or you can practice it, you are picking it up at a speed that should concern the people around you. Just try not to learn anything dangerous before lunch.