How can dance help middle school students understand ecology? That is the question addressed through the lesson plan "Movement and Mutualism: Modeling Ecosystem Interactions," published by Science Friday and written by middle school science teacher Megan Sorensen of Sault Saint Marie, Michigan. In this lesson, students use dance to model the behavior and interactions of animals in their ecosystems. Life science teachers for grades 6-8 will find everything they need to adapt this 1-2 hour lesson. Readers can follow the step-by-step outline, which includes linked video resources for the classroom, embedded gifs modeling student participation, tips for implementation, and downloadable materials (in Word and PDF format) such as cutouts, students guides, and a grading rubric. The lesson plan meets Next Generation Science Standards, National Core Arts Standards, and Common Core State Standards. Science Friday produces a nationally syndicated radio show as well as videos, podcasts, live events, and free educational resources for STEM teachers and students.