Teacher Resource Center

long rope and small pictures of fish

Food Chain Tag

Students discover how energy flows and is transferred between the interdependent organisms of an ecosystem.
collection of papers and pictures about types of animals living in rivers

It’s A Ruffe Life: An Introduction to Invasive Species

Students begin by matching images of common invasive species with their characteristics and impacts. Students then engage in an activity that simulates the impacts of Eurasian ruffe on the natural ecosystem of the St. Louis River.
collection of materials including net, toy fish, and information sheets

Becoming Scientists: Collecting Data

This lesson will help students learn why and how fisheries managers conduct fish surveys. Students will become familiar with some of the equipment and survey methods that Minnesota DNR fisheries biologists use.