Third graders research ecosystems, the work of ecologists, John Muir's contribution to the environment and an endangered species of their choice. They read books, participate in discussions, and write reports.

Galapagos Penguins are the only penguins on earth that live north of the equator (in the wild). In this last lesson plan a discussion on how the Galapagos islands developed their populations and diversity sparks the introduction. Two...