Some quick questions, Powerpoint here. You could also ask pupils to draw pictures (e.g. scaled bar models) to represent their examples.
And then these to from @Craigos87. Need a really good explanation!
- What’s the average number of wheels on a vehicle on a motorway?
- What’s the average number of children a woman (in UK, in India, etc.) has in her life?
- What’s the average number of arms a human being has?
Or, if you’re feeling brave: