Leapfrog Fridge PhonicsSing along fun Celebrate A to Z with fun learning songs, including the "Alphabet Song" and "Wheels on the Bus." Build vocabulary Press any letter twice to hear Tad use it in a word and a sentence. Say it, sound it Place any letter on the bus and press it once to hear Tad say the letters name and sound. Explore letters Kids can learn the alphabet by placing individual magnetic letter tiles on the bus window.