|Diagram found at tennistips.org|
At our initial meetings they must know a few simple parts of the court: the net (a gimme), the baseline, and the service line. Just three. When I say one of those three parts, they must go there. Ideally they must run there. Once they have this figured out on one half of the court, I point out to them that there are duplicate parts on the other side of the net, and include those in our game by saying 'other baseline', 'other service line', etc. The quick minds figure this out and eventually I don't have to say 'other' because they know either of the baselines/service lines is the correct location to run to.
At the next meeting we go over these three and add the alley and the service boxes. Once these five are second nature, usually at the third meeting, I add the T, the hash mark, deuce side, ad side, and finally, No Man's Land.