Codes and riddles are Uncle Norm's favorite. So, when Alanna and Kevin give him a birthday present that's locked by a secret code, Uncle Norm can't wait to figure it out. With some help from a police officer, he learns how traffic lights and signs are just like secret codes - and he gets some ideas about how to open his present.

Originally released by GAPC Entertainment, Inc., 2011. Streaming video file encoded with permission for digital streaming by Infobase on October 13, 2014.

Code Patterns --(7:49) -- Art in Math -- (6:43).