This lesson is used to supplement students' understanding of retrograde motion and visualize why outer planets appear to move "in reverse."

Retrograde Motion Activity

by Meredith Beaton
After reading about and discussing retrograde motion, it is still difficult for some students to visualize what retrograde motion is or exactly how planets seem to be moving "in reverse." This activity was designed for students to act out the motion of the planets in the solar system and see the apparent backwards motion of the planets.
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This is an assessment for the retrograde motion activity. Students are asked to demonstrate a thorough understanding of retrograde motion by explaining the concept to someone else.
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This folder contains the images and animations referenced in the lesson "Retrograde Motion Activity." Additionally, it contains all source and licensing information in the "Description" section.
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