you measure your quilt all the way around and add about 10". leave a (tail) of 4-5" when you start attaching to one side, stitch down one side, miter the corner, keep going along next side, after you miter that 4th corner and are (heading) for the beginning stop and take it out. overlap the two ends of binding and cut them so the (overlap) is equal to the binding width (2 1/2" if that's the width you are using) put the two ends right sides together to join them diagonally, stitch the diagnal, trim the triangles refold the binding and finish attaching it.