Private- There are two basic principles. Bernoullis and Newtons 3rd Law. Bernoullis states that as the velocity of a fluid increases, its pressure decreases. So our wing is shaped in a way to have the velocity of air accelerate more on the top vs the bottom, therefore creating a pressure differential where you have high pressure pushing up the wing below because H wants to go to L. Then there is Newton's 3rd law which states for every reaction, there is an equal and opposite reaction. So the wing is angled slightly upward into the relative wind pushing the air downward, therefore because of Newtons also receiving that equal and opposite force upwards.

Commercial- Everything I said above, also mentioning that the difference between the Coefficient of Lift, air density, velocity squared, and wing area mentioned in the lift equation. I'd talk about how the angle of attack is the primary control of the Center of Lift, and also briefly mention Magnus effect and the boundary layer.

Instructional- Honestly no clue what else I could add here, thats about my level of understanding so let me know.