For me there are a few considerations. First, what type of skill level do they currently have? Secondly, what are their expectations? Third, as I put it, are they lokoing to ski more formed bump runs, more natural bumps, or to just be able to get through the bumps if they take a wrong turn? Fourth, do they have any objections to a couple ideas outside the mogul field?
The first thing I stress with students, irregardless of their answers to be above questions is the body's reaction to new, difficult, or challenging terrain, and how the body's reaction is to lean back (innate fear/intimidation response), and how the more difficult and challenging the terrain may be, the more we need to focus on staying a bit extra forward.
In bumps (easy), I work with fore/aft balance and how it effects the skis while in a slow traverse (tip slap vs. TGIF - Tips Go In First, while also working flexion and extension, extending into the trough). The nice thing about this is that most people feel how they can use their core to correct a balance issue in the bumps and how they can use a traverse or uphill turn to cut their speed, control their speed, or choose a new line. From there, I have people stand on top of a bump, and roll forward, pressing the tips down and into a turn (side door to back door philosophy). Then working with a slow traverse focusing on driving the tips then turn on the top of the bump, then the next traverse, turn in the trough around a bump, then another traverse, turn 1/2 way up the bump (edged into the bump). From this we tighten up the traverse until we get to about a GS type turn in bumps. More agressive/advanced students, I work into tight lines/sometimes zip-lines for a few bumps, then traverse, find a new line, hold a line, traverse, repeat, etc. For the most advanced, I work on "catching" a bump to regain/correct speed or balance issues (jumping from one bump, reaching with the skis through the heels, slightly aft, to "catch" the next bump with the feet, and allow the skis to slow down via the absorbtion while re-centering the hips/CM by allowing it (hips/CM) to continue down the hill over the skis - similar to the old "cowboy turns") and "skip" turns (more rounded turn jumping from one bump and landing on the next, tranfering from turn to turn in the air, an air transition).
Outside the bump field, I will work on dynamic balance (finding a true balanced stance, correcting being to far forward, correcting too far back, etc), dropping into a half-pipe or over terrain features like snow covered rocks (more extreme version of dynamic balance, keeping the CM forward via keping the shoulders over the toes without push the butt out), side slips (uphil hand staying downhil of the downhill ski), pivot slips (pivoting high - extended), retraction pivot slips (pivoting low - flexion/retraction), what I call "reverse turns" - being tallest/extended through the belly of the turn, and being lowest/flexed through the turn completion and into the intiation, edge check/set pivot slips (with and without pole touches), etc.
When teaching bumps, a couple key "mental triggers" I tell people:
- TGIF (Tips Go In First)
- In moguls, always keep speed down (about 1/2 - 2/3 their speed limit so they always have a bit of headroom
- You don't have to turn every bump
- Moguls are formed by turns, don't look at them as objects to avoid, but as objects to help you turn
Depending on the answers to my initial questions, I tend to pick and choose what I teach and how I teach it. For the biggest bang for the buck, I have had the most "quick fix" success with simply getting people to slow down (keeps them more loose and relaxed), focus on staying forward, and not feeling "locked in" by not turning every bump.