What materials did the plains Indians use?

Answer 1

They would use tomahawks (a light ax, typically having a stone head - see image below), war clubs and daggers. However, as time evolved, they were eventually replaced to bows and arrows made from buffalo hides and metal. Because arrows' point is smaller than spears, they can easily penetrate the skin of an animal. Talk about technology! Another advantage is that it can shoot at a longer range, greater accuracy and possibility of continuous shots when compared to continuously throwing spears using bare hands.