For example, you could ask your children to imagine that they are going to live on a remote island and will have to choose a number of people to live there with them.
Ngokwesibonelo, ithi umntwanakho azicabange ayokuhlala endaweni esesihlengeleni, indawo ekude nabantu, bese-ke kufuze akhethe abantu ayokuhlala nabo lapho.