Lesson Plan

Three Affiliated Tribes (TAT) History:  Post 1845 Mandan, Hidatsa and Arikara (MHA) and the Garrison Dam

Image of Hidatsa woman on a hilltop.
Image of Hidatsa woman on a hilltop.

Northwestern University Library, Edward S. Curtis

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Grade Level:
Fourth Grade-Eighth Grade
History, Language Arts, Reading, Writing
45-60 minutes
Group Size:
Up to 24
National/State Standards:
ND State Standards
Social Studies:
Fourth Grade
4.2.2, 4.2.3, 4.2.4, 4.2.5, 4.2.6, 4.2.7, 4.2.8, 4.2.9, 4.2.10, 4.2.11, 4.3.2, 4.5.1, 4.5.3, 4.5.4, 4.6.1, 4.6.2, 4.5.6

Eighth Grade
8.1.1 ,8.1.2 
1851 Treaty of Fort Laramie, General Allotment Act of 1887, Subsistence economy, commodities


Students will learn how the Treaty at Fort Laramie established a territory for the Mandan, Hidatsa and Arikara (MHA) and how that land base was reduced through the Allotment Act of 1887.  They will also gain understanding about how the Garrison Dam impacted the lives of the Three Affiliated Tribes (TAT) and forced them to relocate to what is now the Fort Berthold Reservation.


The student will be able to:
Compare and contrast two or more groups: Mandan, Hidatsa, and Arikara people and mainstream America and identify that all people have different perspectives of history.
Describe how time and place are important in history.
Demonstrate how some historical events can be viewed from a problem/solution frame of mind


This lesson incorporates reading and discussion with an exercise in historical text analysis through a graphic organization model known as the History Change Frame.

For many students, history lessons like this can seem to be a never-ending series of facts: names, dates, places, events. By using the History Change Frame model, students can begin to make sense of history and gain deeper understanding about changes people have experienced.


PDF of background information forteacher and student reference.
PDF History Change Frame GraphicOrganizer
PDF History Change FrameTransparency Master



Students will complete the History Change Frame Graphic Organizer.
Students will answer questions during teacher lead discussion.
Student will create a collage which can be evaluated against the criteria provided (grading rubric) or other criteria designated by the teacher.

Park Connections

After the smallpox epidemic of 1837, the surviving Hidatsa and Mandan moved to Like-a-Fishhook Village and were forced to relocate again as a result of the 1944 Flood Control Act and the construction of the Garrison Dam in the early 1950s.


(Post Visit)
Based on what you have read and learned during your visit to KNRI, create a collage using cutouts from magazines, newspapers, photographs, paper, yarn, bark, or other materials. Your collage should compare the contemporary Hidatsa events with those of modern day America. How are they different? How are they the same.


1851 Treaty of Fort Laramie, General Allotment Act of 1887, Subsistence economy, commodities

Last updated: April 10, 2015