Partial squatting is when you bend your knees a little bit but not all the way down. It is like you are sitting on a low chair instead of squatting all the way down to the ground. When you do this, you can still exercise your legs, particularly your thigh muscles or quadriceps. It is a good way to start practicing before you do a full squat. It can also help you practice your balance and improve your leg strength. Just make sure you do it correctly and don't strain yourself!