CHOO CHOO! Here comes the train! Blue, yellow, green . . . Where is the red car? There it is! Baby can get it. Baby takes three steps to the right, three steps forward, and three steps to the left. Then, Baby takes three steps all by herself. HOORAY! Baby always follows the same steps to get from the rug to the toy box and back again. This pattern of steps is called an algorithm. ukryj opis