When we work with students we have to remember that as hard as we try, we will still have biases or at least use some. Maps come with lots of choices. Short of using a globe, we are going to distort the land or ocean masses. This short video is excellent in his visual display of the different maps. If you teach world history or like to see the world a bit differently, this will be useful video for your class.
One thing to make this relevant is that Google uses the Mercator map with its maps. So every day we are seeing a bias that most people are unaware about.