I read as far as the first reply...now, I'll go back are read more after I post this:

'The best way that I know if is to have him do circuits, then make approaches at a certain altitude, say 50 feet. Then have him line up with the centerline and continue that and TELL HIM to go around, then do it again. Never lower than 50 or so feet. Then, once he is comfortable and lines up correctly, have him do it at, say 30 feet. Then continue that until he is again comfortable with that, then lower the altitude to 10 feet.... and continue this process until you don't tell him to go around at all, and he lands it. "

I haven't solored yet, but did made a couple of landins last weekend. My instructor told to do the same thing. I practiced circuits, lining up and cutting revs to simulate landing...all from 50-75 feet up, until he felt that I was getting the hang of it. Then, I started coming around lower and lining up on the runway (the hardest part for me), bringing almost to the ground, then putting on power and coming around again. When I felt that it was right, I set it down textbook perfect. Then on the next attempt, I over corrected when it started to bank just as it landed and forgot to flare it and it nosed over and broke a prop. But, I did get the hang of it and think this week, I'll do better.