Provides both a rationale and framework for Earth systems education and a description of the early development of the Program for Leadership in Earth Systems Education (PLESE). Presents the seven basic understandings that form the conceptual basis for the PLESE program. (five references) (MCO)

Presents a lesson plan about greenhouse effect and global warming. Includes diagrams and graphs from which students are asked to make inferences. Provides background information about how energy enters and leaves the earth system, the energy budget, consequences of obstructing the energy balance, and the greenhouse effect. (three references) (MCO)

Describes a project where students were involved in finding the most suitable site for a landfill in their community. This two-month project was conducted using team teaching. Two twelfth grade geoscience classes were involved. (PR)

Describes the use of two instructional television videos, "Global Geography" and "Global Links," in science instruction using a variety of instructional techniques. (PR)