The Smithsonian’s National Museum Of American History has just released a five unit curriculum on U.S. migration and immigration history called Becoming US (click on “Units and Case Studies” at the top).
Here’s how they describe it:
Becoming US is a new educational resource for high school teachers and students to learn immigration and migration history in a more accurate and inclusive way.
The people of North America came from many cultures and spoke different languages long before the founding of the United States, even before European contact. At the center of Becoming US is the understanding that some people were already in the land that is today the United States, some people were brought against their will, some people came voluntarily, and some people never moved but became part of the United States as its border expanded to include them.