What is change? Do communities change or stay the same? How does change make a community more unique? Objective Students will: • Describe how changes with a community can affect daily life. • Locate the Clinch River Valley on a map and describe some of the changes that took place there over its history. • Compare and contrast the changes that have taken place in their own community with those that took place in the Clinch River Valley. Preparation Prior to teaching this lesson, gather library books on communities of the Appalachian Mountains, famous dam construction projects, the Manhattan Pro Duration: 60 Minutes.