For perspectives, expresses by noted specialist, Meadows, Mesarovic, Heilbroner, and Kahn, on the challenges of world problems are augmented by five lessons for secondary students that promote a systematic approach to these problems. (JH)

In this simulation, secondary students explore the potentials for cooperation and conflict that have existed in relation to control of the seas. Through playing roles of decision makers of various nations, students learn about issues and positions involved in exploiting the wealth of th sea, including minerals, oil, and fish. (RM)

Presents three lessons which demonstrate to junior high students in geography courses that knowledge of "where things are happening" is essential to an understanding of global issues. Students use the basic tools of geography to examine population distribution, world resources, and the water crisis. (RM)

Data and activities examining the sources and uses of energy are included. (DE)

This simulation helps students in grades four to eight see their planet as one environment with limited resources shared by all. Students learn that the earth is a large system comprised of small systems, that systems are interdependent and often have irreplaceable parts, and that resources are not equally divided among countries. (RM)