Navajos have until recently been the largest tribe in the US, Ojibwe are the largest Indigenous ethnic group north of the Rio Grande, and the Iroquois Confederacy had a longer and stronger impact on the development of the United States. Why exactly are Cherokees the only tribe that seems to be taught about in US History?
If you were taught about other tribes in school, I'd love hear which ones!
I don't know where you went to school but perhaps this is a regional issue as I don't concur with your perception of the teachings being only about Cherokee, Iroquois, or Ojibwe. My personal experience (from schooling) would lead me to talk about Sioux but I don't wish to cross any boundaries with the subreddit rules so instead I will list some potential source material for you to follow up with.
[Encyclopedia of North American Indians] (https://www.worldcat.org/title/encyclopedia-of-north-american-indians/oclc/34669430)
Encyclopedia of Native American tribes
The Gale encyclopedia of Native American tribes
This is not an exhaustive list but its a starting point for you. enjoy!
The Seminoles and their attempt to defend their claims in Florida were certainly mentioned in my history class
That is a wildly over-generalized statement. I would assume your perception is mainly due to you own experiences in high school? edit: I saw your comment.
As others have stated, this is probably highly regionally motivated, i.e., you are taught about Native Americans near your area.
For me (midwest), there were the Iroquois, Seminole, Ojibwa, Sioux, Chippewa, Choctaw... and those are just the ones I remember off the top of my head.