Welcome to the site!!
Now-- about your plant
-- if you will notice on the "bottom" of the leaves there should be little "nodes" and if it was left on the mother long enough they probably resemble roots. That's exactly what they are. The difference between putting them in water and putting them directly into soil is the type of root system they will develope. The ones in water will need to adapt their roots to soil when you do pot it so it might be a little bit of a shock to the plant
. But they usually tend to do well once they get started. I have done it both ways and in my experience the ones I start in water seem to grow larger sooner that the ones I have put directly into the soil. But like Dianna said which ever works best for you-- its a matter of preference. One final note-- mine tends to do better slightly rootbound.