This lesson plan is part of the DiscoverySchool.com lesson plan library for grades 6-8. It focuses on how star positions shift over long periods of time. By using a program called Skyglobe, students gain understanding of movements of the stars, and predict how objects will be different with different changes in time. It includes objectives, materials, procedures, discussion questions, evaluation ideas, performing extensions, suggested readings, and vocabulary. There are videos available to order which complement this lesson, an audio-enhanced vocabulary list, and links to teaching tools for making custom quizzes, worksheets, puzzles and lesson plans.