Why teens do stupid things Teens smoke, take drugs, have unprotected sex and ride with drunk drivers, not because they think they are invulnerable or haven't thought about the risks, says a new Cornell study. In fact, they are more likely to ponder the
FORUM LERNEN 2005 Vortrag: Fr. 07.10.05 Prof. Dr. Heinz Mandl "Wissensmanagement: Elemente für eine neue Lernkultur" Workshop: Do. 03.11.05 "Wissensmanagement und Lernen"