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)

In this lesson, junior high students consider two instances of exponential population growth--one at the local community level and one at the world level--as a way of illuminating some of the problems posed by growth and the limits that may curtail it. (RM)

Designed to correspond with the similar topic in the American Issues Forum program, this article provides readings and discussion questions on America's role in helping to solve world problems. The readings focus on the ethical decision of whether to share our affluence with the rest of the world. (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)