Questioning

I think most of us grew up being taught certain things and not questioning them. Taking these newly learned facts without questioning is a common mistake most learners make in the beginning. Maybe our minds were not mature enough to develop this sense of questioning but I also love when students ask the why. Posing this question to our students of "Did Marco Polo really go to China?" could be an excellent way of challenging the notions that we have had in our minds since we first learned about these things. Also it would be a perfect research project in which the students could dive deeper into the materials at hand.