Fly into fun with a determined girl engineer named Min who finds a clever way to join her big sister's games. This Level G book is perfect for young readers building their vocabulary and skills Big Sister Ann and her friend Bess are playing school--and Min wants to join in. But Ann tells Min she's not ready for school. "Here is the line." says Ann, "You may not step over it." Min doesn't give up so easily, though--she finds...