I gave groups piles of numbers and asked them to think of them as a group of different temperatures, as we are presently inquiring about weather for our unit on How the World Works, this seemed a natural fit. (Yes! I forgot the degrees symbol... I realised half way through).
The question I posed now was, What is the most common temperature?
To gauge their ability I let them have a go. I will use this as a formative assessment task to form where to go next!