This lesson is fairly simple. It is not sufficient to make you a master of cross contry travel.
Lets get through the fundamentals first.
The directions:
North, South, East and West. It should be a childhood ditty. (Some people that have struggled with this prefer to remember as NEWS, North, East, West, South.) Take a look at the figure at the left and make sure we are all on the same page. North is going to be the one we will be dealing with the most, if you are overwhelmed.
When you feel comfortable, you may wish to move on to the hard stuff.