Describe how to correct for porpoising and skipping.

Bottom line

Skipping is a form of instability that may occur when landing at excessive speed with the nose at too high a pitch angle. To correct for skipping, first increase back pressure on the elevator control and add sufficient power to prevent the floats from contacting the water. If porpoising occurs due to a nose-low planing attitude, stop it by applying timely back pressure on the elevator control to prevent the bows of the floats from digging into the water.