PBS
Pbs: The American Experience in the 1900s
This site presents a general picture of what life was like in the United States at the turn of the century. Content includes compelling images, information, and documents about American life.
Other
The Weekly South Dakotan: South Dakota History for 4th Grade
From the very beginning and through the twentieth century, this comprehensive collection of lessons will enrich students studying the history in between and the effects on South Dakota.