Bump Skiing 101 - An introduction to skiing moguls

I had a 3 hour lesson the other day with a strong intermediate skier who wanted to improve his bump skiing.  By his own self assessment his mogul skiing wasn't very good!  We'd had a few inches of fresh snow at the mountain, so the conditions were perfect for an intro to bumps lesson.  After a quick warm up lap to check he could make a parallel turn on blue terrain, we dove right in.  I'll lead you through my progression, and give some explanation why.  I might have taken a different approach depending on the profile of the student.

Counter-rotation: What is it and when do we need it?

Counter-rotation should be evident in nearly every ski turn to varying degrees.  The only time I would not expect to see counter is in a very basic wedge turn, or in children that have not developed fine motor skills yet.  So what is counter-rotation?  According to the PSIA, "counter-rotation describes the movement when the upper body turns in one direction as the lower body (legs) turn in the opposite direction".  Out on the hill, counter-rotation is observed when you see the legs turn across the hill towards the end of a turn and the upper body stays focused facing more down the hill.  This is also known as turning the feet and legs against a stable upper body.  Counter-rotation is greatest during the transition between turns and smallest in the fall line.