What caused the collapse of the environment on Rapa Nui (Easter Island)? Who constructed the Moai? What was their purpose? Class members assume the role of investigators and use evidence drawn from field studies, ships' logs, and...

Learners examine the economic and ecological benefits of forest canopies. They read and discuss an article, answer questions, conduct research, draw field sketches of a canopy ecosystem, conduct a feasibility study, or prepare tourist...