The following work for a C172SP at about 7500' and std temp.
1. VERT IMPORTANT!! and probably least emphasized. Teach student how to adjust seat height so that the seat is the same position every time. I would set the seat so that my eye level is the same as the upper edge of the side window.
2 Cover all flight instruments
3. You fly: Set a level Attitude at Cruise Power Setting
Cessna 172SP at 7500' about 2300 RPM. Horizon should be about 2.5 to 3" above dash. This will yield about 90 kias.\
4. Student Flies: Have student describe what he is looking at. How he can tell the horizon hasn't moved. ie, horizon is at the top of the mag compass. Tell student to keep the attitude (Distance between dash and horizon) the same. The point where the horizon is, straight infront of the student, will be referred to as the "Reference Point"
5. You fly. Increase the aircraft attitude, and then start decreasing the attitude. Have the student tell you when to stop in order to maintain altitude. Repeat Until student can do this repeatedly without error. Should not take more than a few moments.
6. Instruct the student to look at a point on the horizon 45 degrees to the right. Now, have him describe where the horizon is while you fly the aircraft in the level attitude. Change the attitude, have him tell you when you are back to level. He can verify this by looking back at the reference point straight in front of him.
Repeat process for a point about 45 degrees left, and then another point about 80 to 90 right and left. This will allow the student to know the level attitude picture while looking any direction forward of the airplane (ie, visual scanning, vfr??, traffic avoidance?)
This same concept can be used for any pitch and power settings, ie, climb, descent, cruise climb. Also, the same theory can be used for setting bank angles.
Only reference the flight instruments after the student can do all the desired pitch/power/bank combinations with only outside reference. For every minute, you should spend no more than about 6 to 10 seconds inside. I ensure my students can do every manuever in the Private PTS within standards, with the 6pack covered. The only instrument you need is the tachometer. (And, with a fixed pitch prop and a little practice, you can do it without that.) Remember, the PTS standards are for evaluation. I don't want my students worried about 100 feet or 10 knots, because then they spend too much time staring at the instruments and don't learn what the manuever is really about.
Now, its been a little while since I did this, I've got a word doc somewhere with a Control/Performance checklist for flight instruction I got from an AirForce IP. If anyone is interested, I can try to find it.
Pitch/Power debate? Oh no, might as well settle the Chicken/Egg scenario while we're at it!! Ask a Navy pilot, pitch controls Airspeed, ask an Air Force Pilot and power controls airspeed.