
Lessons
Investigating Crayfish and Freshwater Ecosystems, Lesson 1 Crayfish and Freshwater Ecosystems
Background This lesson is designed to be highly adaptable, but options include a brief “crayfish trivia”…

Lessons
Investigating Crayfish and Freshwater Ecosystems, Lesson 2 Invasive Crayfish and Community Changes
Background Students first read about mysterious population changes in a freshwater ecosystem, then create line graphs…

Lessons
Investigating Crayfish and Freshwater Ecosystems, Lesson 3 Crayfish Adaptations
Objectives Students will accomplish the following goals upon completing this lesson: Students will meet the following…

Lessons
Investigating Crayfish and Freshwater Ecosystems, Lesson 4 Native and Invasive Crayfish
Background In this lesson, students explore native and invasive crayfish species of the Great Lakes and…