Growth of a Nation

The Growth of a Nation from the Animated Atlas website seems useful. The presentation takes you through the growth of the United States from 1780 all the way through to the current day.

The website is fully interactive and works great on the Smartboard; it allows you to pause and restart the presentation; it allows you to slide the time line pointer to advance to different time periods, it allows you to click on the states to see more detail; and it even provides a scrollable time line that organizes pertinent data into key topics
(from Teachers love smart boards blog)
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