Learning Morse Code

Here's a pretty interesting way to learn Morse Code. Its pretty cool.  You just put your pencil at the START mark.  If you hear a "dah" move down and left.  If you hear a "dit" move down and right.  Keep doing this until you hear the space between the letters.  At that point, your pencil is on the letter that has been sent.  This sure seems like a really good way to get started and quickly get reasonable results.  I'm going to have to try it.