Back-to-School Belly Busters And Other Side-Splitting Knock-Knock Jokes That Are Too Cool for School!

<p>The first day back to school has never been more fun than it is in this S'coolest collection of knock-knock jokes ever. Lift the flaps and see if this group of kids can make the grade. You'll give these knock-knock jokes an A+!</p><p>Knock-knock!<br>Who's there?<br>Teddy!<br>Teddy Who?<br>Teddy is the first day of school!<br></p>