it is a tutu
A short tulle ballet skirt is called a tutu.
this answer is a tutu
A fine, often starched net of silk, rayon, or nylon, used especially for veils, tutus, or gowns. That's what Tulle is. So I bet that a tulle dress was made out of tulle.
I will need many yards of tulle to make this skirt really full.
First find fabric, elastic, and a hoop. The hoop can be made from PVC pipe, tulle, or other materials. The sew the basis of the skirt and at the bottom sew in the hoop.
http://images.google.com/images?q=tulle%20ballet%20skirt&rls=com.microsoft:en-au:IE-SearchBox&oe=UTF-8&sourceid=ie7&rlz=1I7ADBR_en&um=1&ie=UTF-8&sa=N&hl=en&tab=wi The tutu type skirt is tulle. it doesnt necessarily have to be a pallet (the kind that stick flat out) type, it can be layed down.
a skirt flows more and longer than a tutu - a tutu sticks straight out and is usually made of a fabric like tulle