Right now, I'm preparing a lesson on the earliest people here in the Americas. I have children's books I picked up cheaply here and there through the years - mainstream books written and used by schoolteachers and offered through companies like Scholastic. I was just going through one of them on "American Indians" published by Barron's. Yes, it uses the term "American Indian", but here are some exact quotes from it (remember, this is a book written for young children):
"...white settlers wanted the... land, so they took it. In the end, they decided that extermination was the best policy.
[A]lthough many American Indians scalped their victims, there were very few proven examples where Indians had purposely tortured their defeated enemies."
"Custer's Last Stand has gone down in history as the last battle of a hero against overwhelming odds. In fact, Custer was a fool who led his 200 men into a trap."
Originally, only the Mohawk Indians... had taken scalps. As white settlers began to pay money for enemy Indian scalps..., the practice spread to many tribes."
Get the picture? When Europeans waged war, they were either evil or foolish. When American Indians waged war, they were either great warriors, innocent victims, or just misunderstood.
But, in reality, history is far more complicated than that. Those statements above are designed to give young children a narrow viewpoint, without really being able to understand fully or think.
So, what I'm doing is having my children create history timelines and scrapbooks, focusing on dates and facts. We can fill in the blanks later when they're old enough to understand. Also, many homeschoolers here have a list of history books recommended as good books on this thread.