The Cat in the Hat's First-First Day

In the Cat's Playhouse, Terrence tries to fly for the first time, and does. But he's scared to try again. In the Wubbulous World, Morton sleeps over at Junior Kangaroo's house for the first time, and it's very different from his house. And Sarah Hall-Small, after buttoning her sweater for the first time, imagines all the other "firsts" she'll have.