A growing body of research shows when kids are between 10-12 their brains go through an explosive period of development that makes them susceptible to influence, for better or worse. Experts call it the "age of opportunity" because what happens during this time can lead a child towards greatness, but it can also introduce intractable bad habits. Parents get plenty of advice on how to deal with teens, but little when it comes to tweens. Schools also play an important role in shaping adolescent minds by cultivating positive experiences. We talk with psychologists and a Middle School Teacher of the Year about how to make the most of growth at this age. This episode was reported by Ki Sung. The MindShift podcast is produced by Nimah Gobir, Ki Sung, Jessical Plazcek, Katrina Schwartz and Seth Samuel. Additional support from Kyana Moghadam, Jen Chien, Erika Kelly and Gerald Fermin.