Here is what I teach:

1. On landing approach to level the wings push the aileron stick to the low wing.

2. When inverted the elevator is reversed.

3. For all other orientation upright or inverted do the following: Focus on the side of the plane closest to you. Think in terms of making the plane come toward you and away from you. If you are focused on the side of the plane closest to you, push the aileron stick toward the nose of the plane and the plane will come toward you. If you push the stick toward the tail the plane will go away from you. This works even if inverted. This is a very simple method of keeping your orientation. Do not think in terms of right and left. Think toward you and away from you.

When the plane starts to fly toward you that means that the side of the wing farthest from you will come up.

Hope this helps. bob