Penguin Random House : Kindergarten Graduation! (A Book for Soon-to-Be First Graders)

Matteo can't believe it's almost time to move from kindergarten to first grade! He and his classmates have learned so much and they’ve had a lot of fun. Now they’re getting ready for their graduation celebration. Matteo is especially going to miss the class guinea pig, Gus. But maybe guinea pigs can graduate too!