Flat Stanley's Adventures in Classroom 2e #2: Riding the Slides

"According to Stanley's second grade teacher, Ms. Root, everyone in classroom 2E is a scientist. That's good news for Stanley because he has a problem in need of solving! Both his classmate, Josie, and his little brother, Arthur, think he's been using his flatness to cheat during playground games. But Stanley can't help being flat! It's time to test how flatness affects Stanley on the playground. Will science be on his side?"--Provided by publisher.