Why was transportation important to the Hidatsa? Objective The students will: Discuss travel then and now. Research design and build a bullboat. Background This lesson is part of Knife River Indian Villages National Historic Site Teacher's Guide for Grades K-8: Guide to the Earthlodge People . It was written by members of the Mandan Hidatsa Arikara Nation for educators. Lesson 3 integrates active listening and discussion as students learn about transportation from Good Bird The Indian: His Story . Then they research bullboats and design and build a bullboat using the Internet and materials pro Duration: 60 Minutes.