Up & down, big & little, match the opposites. Once a critical mass of words are recognized, preschoolers love to engage in word play. The elder person may select a puzzle piece with a bluebird flying up with the word UP. The tot searches for the one on which the bluebird flies DOWN, and assembles the puzzle pair. This play encourages critical thinking skills. For ages 3 and up; Box: 9" x 1" x 9"; 25 Pairs to match; Winner of the Oppenheim Gold Award;.