[Not_here]

From my experience, the teachers simply don't want you to be cheating. They assume that if you show work that you did it yourself, which I guess has some validity. That being said, I find it unfair when teachers make every student follow specific methods. I remember that I would have to do math in a certain way of thinking, even though I had another way to do it. It sucks and if you can explain to your teacher you don't work like that, that it's better for you as a learner to do it in your head he may understand. I know it can slow me down if I had to do that for every question on a test. But eventually I learned to include the seemingly obvious steps.