To promote the new Guinness World Records 2014 Gamer’s Edition, the publishers and their PR people chose four of the included records to highlight in their press materials. Included among them was “Longest Marathon On A Dance Video Game,” which was set by Carrie Swidecki, a second grade teacher who played Just Dance 4 for 49 Hours, 3 Minutes, and 22 Seconds. But Swidecki isn’t just some obsessive gamer, she’s also trying to spread the word about exergaming, the idea of using video games in schools as a way to get kids to exercise.