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.
Take the strip in both hands, fold the paper over left onto right, and crease. Now fold it again in the same way, left to right, and crease, and again, left onto right and crease, and again left onto right 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.