This column includes activities inspired by children's literature. When learning about a topic, scientists refer to documents from past researchers. This month's trade books include nonfiction and historical fiction selections that help to demonstrate similarities and differences "then and now" while incorporating engineering design…

In this featured lesson, entitled "Fishy Feeding Frenzy," fourth-grade students engage in a classic science activity that requires them to experience the interdependent relationships of organisms in an ecosystem. The students explore how adaptations increase the survival of a member of a species by participating in an active "fishy…