They look kind of like partial squares. They're labeled First Iteration, Second Iteration, etc. , and they get more and more complex with each iteration. I'm going to show you how to make this fractal by paper-folding.
Construction paper works really well because it has a little more stiffness.
Now fold it again in the same way, right onto left, and crease, and again, right onto left and crease, and again right onto left and crease. Let's unfold and see. Now you may be saying, this is just a mess of folded paper. Well, we have to put some order to it. Lay the paper on its edge.