American Civilizations before Columbus

Today the students will have to answer few questions about the American Civilizations before Christopher Columbus.

They have two different files:

1) A Presentation in pdf with all the information about the topic.
Click the following link:
Presentation in pdf about American Civilizations Before Columbus

2) Working sheet with the questions about American Civilizations.
Click in the next link:
Questions about America Civilizations before Columbus

3) A National Geographic Documentary to watch with subtitles in youtube.
Click in the next link:

American Civilizations before Columbus - National Geographic