What kind of story is this?

With her letter, she included a sample story constructed with the sounds and intonations that would help the reader include the young listener and tell the tale. The story was of course ‘Going Fishing’ – the works being just as the children wanted them by now because Jane and Frank knew it by heart. When ‘Going Fishing’ was broadcast, it was so popular that parents all over the country wrote letters to the editor requesting repeats.