World population will reach seven billion by the end of 2011, creating a powerful teachable moment for educators on global trends and their effect on individual lives. Discover innovative, interdisciplinary, hands-on activities to broaden students' awareness about global interdependence, competition for finite resources, and the challenges ahead for creating sustainable, healthy societies. Engage in games, role-playing, and creative problem-solving activities to build students' knowledge and skills in social studies, life sciences, and mathematics around a unifying theme. Free CD-ROM of activities.