First, take a letter-sized sheet of paper. Then fold it in half along the spine, vertically. Now unfold. So you should have a line in the middle. Take the upper right corner and upper left corner, and fold them into triangles aligning with the mid-fold. Now fold both ##### down so it looks like an envelope. Fold two triangles along the midline again. You should be able to leave a tiny part sticking out. now fold that part up, and crease. Next, fold the model in half vertically, so that you can see the edge we just folded. You should have a right triangle, and a rectangle/square. Finally, fold the wings on top of each other, and there you go; you now have the world's best paper airplane.         

---