Celebrate 50 years of Corduroy with this school adventure.   Corduroy has a lot to do at school today. He has to bring in something that starts with the letter "B," feed the classroom pets, listen to a story, paint, have a snack, and help clean up. And all of his favorite friends are there to share the school day with him. In seven colorful spreads, children can lift the flaps and see what's hiding in the cubby, behind the swing, under the drawing pad or in many more inventive places. And Corduroy, the lovable, cuddly bear, is just the right, reassuring presence to make children feel comfortable with all the new experiences school can bring.