No doubt landings are the toughest part of any flight. For me, I didn't know what I was doing wrong until I did it right. Then the whole picture changed and I knew then what a landing approach and landing was supposed to look like. If he has only 10 flights in, he has a LONG way to go. Give him time, at some point it will "click". It might take 100 landings or 50. Everyone is different. One very important thing, when he gets the hang of it in one direction, have him do approaches in the other direction. You must be able to land from both directions. I've seen some guys that would have to walk to the other side of the field to land if the wind changed direction, because they can only land from right to left. It's a big learning curve. Good Luck