An old man travels with a wolf, a sheep and a basket of cabbage. He wants to go across a river. But he has a problem, because his boat is very small. Each time he can take only one of the three things to the river. If he leaves wolf together with the sheep, the wolf may eat the sheep. If he leaves the sheep together with the cabbage, the sheep may eat the cabbage. He does not know what to do. Can you help him? Write out your idea and then read it to your partner.