Here’s a nice little investigation for young children. Take two differently coloured dice and work out how many different ways that 6 can be scored when they are both rolled.
Not quite as easy as it might appear – for example you can not have 6 and 0 as a pair as each die must score something. Also is a red 2 and a black 4 the same as a red 4 and a black 2? These are things to discuss.