I believe that in order to teach objectively to all students, you have to be honest with yourself about your own learning style first. As humans we will usually seek out the easiest method of doing something. If we don't learn and understand what our own style of learning is, then we will usually only teach in that style to the students. By learning the different styles, and our own, then we can re-adjust the way we present the information to all students. So that more will comprehend the information at hand.