This problem asks how many ways can a bunny called Leo can hop up 10 steps but, perhaps surprisingly, there is much to explore in this question! Leo can only hop up 1 or 2 steps each time he hops. Number flexibility and organizing data will come into play in this interesting task. Younger students might find a few ways for Leo to hop up the steps, while older students might focus on making sure they find every possible way or even think about longer staircases.