Your jump school will help you to learn the basics of skydiving for example:
1. The correct posture for jumping
2. How to position your body once in the air and
3. How to land without breaking any bones.
They will also teach you the basic procedures for safe skydiving like what to do if your parachute becomes entangled, doesn't open properly or what to do if the wind carries you to a location that is unsafe for landing.
The basics of skydiving will prepare you for all and any happenings on your way down to terra firma, but we can almost guarantee that you will want to be up in the air again as soon as you have landed.