Originally Posted by
lnuss
This brings up a potential problem. Unless I am misunderstanding what you propose, you're talking about just getting airborne, then landing again, without really going around the pattern or such. If this is the case, keep in mind that the reason CFIs take students to the practice area early, with TO&L only at each end of the flight, is to give the student a chance to actually learn how the aircraft behaves, how to properly control it in a reasonably safe environment, since near the ground is the most dangerous part of the flight.
Or maybe I'm completely misunderstanding what you propose.