Fold a piece of paper in half lengthwise. open it again.
Fold one corner of the paper into the crease to make a triangle.
Repeat with the opposite corner. You now should have a plane shaped like a triangle on top of a rectangle.
Bend in one side into the crease over the triangle you have already made. This will form a more acute triangle that goes most of the way to the back of the plane.
Repeat Step 4 on the other side of the plane. You should have all the folds sandwiched inside the first bend you made.
Hold the plane in the middle and bend the wings down. You should get two bends that are parallel to the bottom of the paper.
Throw the plane from the middle.
