U gets the balloon ride of his life, but he is still unhappy - or so he thinks! When unhappy U meets perky P, things can only go one way - up. Now U's only problem is getting back down. This episode introduces the letter U and the words up, cup, pup, pop, sum, mug and mud.
Download the worksheet...For more hands-on number fun explore the Alphablocks apps and watch more on YouTube!