1,000 words to get kids ready for pre-school and kindergarten.Merriam-Webster's Ready-for-School Words is a beautifully illustrated hardcover book featuring 1,000 words children ages 3-6 years old should know as they start pre-school and kindergarten. The book follows different families from their homes, to their workplaces and classrooms, and on camping trips and seaside adventures. With labeled objects and simple sentences, children will start school with confidence and an expanded vocabulary.