I agree with Bruce. Every student that I teach I have stand behind the plane on the first few take offs. There are a lot of things going on with a new student and something as simple as standing behind the plane can help them more than you can imagine. What I do is after I the plane is up, at altitude, and in the pattern I walk the student back to the side of the runway so they aren't standing in the way of others that may need to use the runway.

Ken