Every photograph must go through three distinct phases:
The planning phase. This about thinking before hitting the shutter button. Knowing how the controls on your camera can be set to deal with the conditions.
You’ve taken a meter reading, decided on which lens and camera settings are likely to give you the composition and depth of field you’re after. Tripod or no tripod? Any filters needed? Fine. Do it.
Every digital image, almost without exception, needs some post-production work. Whether simply cataloguing and backing up your photographs, or radically altering them to achieve special effects, this is as important as planning and taking your shots.
My teaching is aimed at showing how all three stages are combined to produce the best possible end result.