Do or have you fly fished yourself? Just trying to get a feel for your experience level.
A drill I used to run years ago was to to place a target on the lawn; usually a hand towel or face cloth, at a distance of perhaps 15' to begin with. With the target set, begin practicing placing your fly on the spot consistently. After perhaps 10 consecutive hits, step back 3 feet and repeat the practice.
Make it more than just slapping your fly on the spot, rather practice the motion of shooting the line out and delicately drop it to the target.
I'd be prudent to snap the hook off above the bend, when first schooling a beginner as well. If nothing else, at least pinch the barb; it will be easier to extract the hook from their ear or the back of their heads.
I'd also suggest you have a copy of "The Curtis Creek Manifesto" for quick reference to a slew of great tips.