In this article, fourth graders investigate the physical and behavioral adaptations of crayfish. Because crayfish are native to the area and many students have experience observing them in local streams, the author decided to use these organisms to explore the relationship between the structure of their various body parts and how those structures…

It can be a struggle for early childhood teachers to create hands-on, engaging lessons about animals. This is especially true of units that require exposure to a wide range of animals from a variety of habitats. The authors' describe how they shook up their traditional animal unit by creating a Kindergarten zoo! Herein they summarize their…

Described is the use of praying mantises as organisms to illustrate the concept of predator. (PEB)