It's Ollie's first class trip! Where will his class go? To the moon? NO! Up into a bluebird's nest? NO! To a rainbow they can use as a slide? NO! Will Ollie's class go to the aquarium? YES!

Before Ollie goes on the trip he needs help answering some questions, so he's calling on a trusted friend . . . the reader! Children will love being Ollie's helper as they answer his questions--some silly, some serious--while following his class through an exciting, fact-filled day at the always fascinating, fish-filled aquarium.