In our Voyage Long and Strange discussion, we asked ourselves how we can best prepare young children for their future studies which (hopefully) will complicate their knowledge of history? How can we prepare students so they won't be angry when they get to high school or college and learn that "everything they had been told was wrong?"
One way is by continually offering a variety of perspectives while teaching about the past. Encounter is one such book which introduces a different point of view about Columbus's voyage.
Try also comparing Sarah Morton's Day with Tapenum's Day when discussing the Pilgrims.