2

American Football

4

The American Revolution

4

Famous Americans: Thomas Jefferson

4

The American Civil War

4

From the American Revolution to the Civil War

4

Famous Americans: Benjamin Franklin

4

Early North American Settlers

4

Early Native Americans

4

Famous Americans: George Washington

4

Famous Americans: Abraham Lincoln

4

After the American Civil War

3

Coastal Plains of the World

4

The Space Needle

4

Maddy's New Jersey Diary

3

The Three Little Pigs

4

Maddy's Montana Diary

4

Maddy's Virginia Diary

4

Maddy's Iowa Diary

3

Thurgood Marshall

3

Space Exploration

4

Maddy's Alaska Diary

3

Daniel Boone

3

Sacagawea

4

Maddy's Arizona Diary

4

Maddy's Indiana Diary

4

History of the United States

3

Houses from around the World

3

Dog Breeds: Working Group

4

Maddy's Florida Diary

4

Maddy's Maryland Diary