The reason Pinocchio appears in Super Why is to teach children the important lesson of telling the truth. In the Super Why episode featuring Pinocchio, Pinocchio lies about breaking Geppetto's wooden puppet, which causes his nose to grow just like in the classic story. The Super Readers help Pinocchio learn to face the truth, and when he finally tells the truth to Geppetto, they work out the problem together. The moral of the story is that telling the truth is always the right thing to do, and it helps solve problems and makes one feel better. This episode uses Pinocchio's story as a fun and relatable way to teach kids about honesty.