Sing along alphabet fun! In this ABCD Watermelon app, Leona sings the alphabet song, but keeps adding in silly words. It's your job to fill in the correct missing letters. It's a fun way to learn the alphabet song, and to learn to identify letters. The ABCD Watermelon app was designed to teach children about letter knowledge. Recognizing the letters of the alphabet is essential for language and vocabulary development. The ability to understand language, follow directions, and express one's thoughts is critical for young children. The Between the Lions, ABCD Watermelon app was produced by WGBH and the producers of Between the Lions. Between the Lions is an award-winning PBS series designed to foster the literacy skills of its viewers, while playfully demonstrating the joys of reading. Unique among the hundreds of programs aimed at children, this puppet, animated, and live-action series is based on a detailed and rigorous literacy curriculum. The lively characters and delightful plotlines aim to give children the experiences they need to become successful readers. For more exciting Between the Lions content, visit http://www.pbskids.org/lions/.