draw X from corner to corner on the square that is not the center...then cut the on the lines just shy of
the sewn seam around the square. Open the cut area out, making another square, then cut the next
piece of fabric the size of that square, repeat the process with the next square, face to face, draw, cut,
fold out, and each time the square gets bigger. True, you do cut loose the points, but it makes a nice block.