According to one estimate, the average young person spends about 8 hours a week playing video games. While many parents are worried about all that screen time, there's an emerging body of research that suggests some social and psychological benefits to gaming. And now there's a new generation of educators who want to bring video games into the classroom, not only to make school more fun, but also more effective. Journalist Greg Toppo writes about their efforts in "The Game Believes in You: How Digital Play Can Make Our Kids Smarter."