Conversation so far:
What is unique about the Plain Indians' culture?
The Plains Indians lived in teepees because they were easily disassembled and allowed the nomadic life of following game.
what game did they hunt?
CANNOTANSWER.
What were the differences between men and women in their culture?
CANNOTANSWER.
What differences are there in Indian culture and European culture?
not yet obtained horses.
What is fascinating about their culture?
culture: skin tepees, travois pulled by dogs, Plains Indian Sign Language, and staple foods such as jerky and pemmican.
How did their culture change when they met Europeans?
tribes gathered together into large encampments, which included ceremonies such as the Sun Dance.

Question: What is the Sun Dance about?
Self-contained rewrite: What is the Sun Dance of the Plain Indian's about?