Up & down, big & little, match the opposites. Once a critical mass of words are recognised, 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. Ages 3 years + 25 puzzle pairs, Made from sturdy board