A lively introduction to traditional nursery songs, these bright, cheery board books teach toddlers about inference. Clever interactive features include a sound chip that plays the song aloud and an innovative die-cut format that helps kids guess what comes next. Parents and toddlers can sing along with this childhood favorite while, on the pages, the cute yellow ducklings swim away—and return. Other pond-dwelling life is also depicted, including a fish, a dragonfly, a ladybug, a water lily, and a cattail.