Pastoralists and agrarians, livestock raisers and farmers. Using the conflict in Darfur as a lens, class members investigate the conflicts that arise when these groups are forced to migrate from one area to another.

Join the tree house detectives in learning about the processes of the water cycle, water conservation, water treatment, and water as a limited resource.

How dry is it? It's so dry, the river only runs twice a week! Through an analysis of maps and discussions, pairs learn about droughts across the United States in the ninth of 12 lessons. They then read about, answer questions, analyze...

Pairs of ecologists select an animal and investigate an ecosystem from its point of view. This simple lesson involves Internet research and putting together a presentation of collected information. 

What causes people to move from one place, one city, or one country to another? Using the provided migration questionnaire, learners interview family members about the factors that cause them to be pushed from an area or pulled to...