
I would teach this as a"static"exercise.
Lure her into a close present position, step back on your right leg & at the same time lure her forward & slightly to the right so she starts to go round behind you. Swap the lure into your left hand behind your back & step forward on your right leg so that your feet are back the start position, lure her into the sitting heel position & reward her as soon as she sits.
I would not tag this on to the end of any exercise. Instead after the present you do an about turn so that you are standing on your dogs right side(your dog will then be in the heel position)doing this way reduces the possibility of teaching your dog to anticipate going to heel.
To teach the"German"or left heel. it is basically the opposite.
With your dog in the present position. Step back on your left leg & lure your dog forward & slightly to the left. Then step forward to your start position & lure your dog into the heel position. You do need to teach your your to do quite a "tight" left about turn before teaching the left heel.
Like all turns the left about turn should be taught as a stand alone static position
The above is of course just my way of teaching the heel exercise