Beginning readers learn how to distinguish between long and short with the aid of helpful cartoon dinosaurs. Antonyms are introduced in a way that makes their difference clear for early learners through the use of accessible text and bright illustrations. Emerging readers discover how to compare objects by length in an engaging way as they learn about this essential concept. The strong picture-text correlation on each page helps beginning readers strengthen their vocabulary skills, and a useful graphic organizer is included to aid in the learning process.