After writing the post:
I could not help but experience with the first activity that the book proposes: THE FANTASTIC BINOMIAL. It was during an after school club. Without anyone seeing him, one child wrote, on one side of the paper the word CLOUD; another, on the other side, the word WINDOW. Then they have to invent a "title" in which the two words appear: they decided it would be THE WINDOW AND ITS CLOUD. And this is what they built using LEGO STORY STARTER... As you see, it is an activity which gives us a very simple starting point to stimulate the imagination and start up a story.