It's another day in Mr. Walter's classroom, and Ari and Blaine hatch a plan to put on a show. Throughout the day, their classmates join the play and contribute new ideas. Finally, it's show time—and just in time for a special audience!

While presenting a group of children following their interests, All in One Day shows the routine of a typical day in child care.

The book contains a page of information to help adults connect the story to children's experiences.