A Crisis of Crabs

by: Jodi Wheeler-Toppen

It is easy for ecology to degenerate into lists of vocabulary words and isolated concepts, leaving students without an appreciation for the complexity of ecological systems. This chapter is designed to help students think about the connections between all of the players in both a familiar and a less-familiar ecosystem. The chapter would work well as a concluding activity for an ecology unit or following lessons on food chains, geological cycles (such as water, carbon, and nitrogen), and habitats. It could also introduce an ecology unit, assuming students have had some exposure to ecological concepts in elementary school.

Grade Levels

Middle School


General Science Informal Education Life Science


Type Book ChapterPub Date 2/1/2010Stock # PB275X.11

NSTA Press produces classroom-ready activities, hands-on approaches to inquiry, relevant professional development, the latest scientific education news and research, assessment and standards-based instruction.

Learn More