There’s a book out with this title, and I think it would be an interesting one.
Lies My Teacher Told Me: Everything Your American History Textbook Got Wrong (James W. Loewen).
My sixth grade teacher was very direct about these things. She said in so many words, “School textbooks are the way they are for many reasons. It’s up to you to find the truth.”
She was a good woman, that teacher. We even did exercises on spotting crap. She was heretical in many ways. I still think of her often.