Maths!

I teach 3 maths groups and they are all very different. My Tuesday afternoon group are always interested in odd facts, so today we looked at some of the less-well-known metric prefixes. They were intrigued to learn that the prefixes for whole multiples are Greek, but that the prefixes for the 3 most common fractional quantities are Latin. 
I do love my Tuesday afternoon group!

Tomorrow, I may take a 'proper' photograph...