The show focuses on the adventures of Zack and Cody Martin as they navigate life on a cruise ship and attend sea-based school. While Bailey is a character in the show and a valuable member of the group, she doesn't have a storyline where she acts as a teacher to young children.
However, Bailey does often help her friends with their studies and she is a good role model for the younger viewers. It's possible that you might be thinking of a specific scene or moment in the show where she helps someone with a task or teaches them something.
Could you provide any additional details about the scene you're thinking of, such as the episode or the characters involved? This might help me identify the specific moment you are looking for.