Gilbert is excited about the costume he is planning to wear in the Halloween parade at school, until he discovers that lots of others have the same costume.

Gilbert forgets to do his homework over the weekend because he is busy playing in the snow and getting ready for Christmas, but then he comes up with a solution at the last minute.

Gilbert is excited about staying overnight at Camp Hi-Dee-Ho, until he hears about the legendary camp ghost.

Gilbert's excitement over starting first grade turns to worry that the teacher will be mean, the work too hard, and his classmates too unfriendly, but throughout the day there are pleasant surprises.

When Gilbert and Lola's cousin Wally comes to visit for Easter, he learns a lesson about being greedy during the annual Easter egg hunt.

On April Fools' Day, Gilbert is unhappy that everyone is tricking him and he is unable to get them back, but then he thinks of a great way to fool his best friend. Includes tricks hidden in the illustrations for the reader to find.

Gilbert seems to be the only one in his class who cannot think of any ideas for an Earth Day project.