Colin the MathmoElsewhere on the internet:
Yesterday at the launch of #MathsWeekEngland (in the new MathsWorld venue near London's Bankside).
Mum with child: "What do you call the type of maths that's here at MathsWorld?"
Rob Eastaway: "It's officially called 'fun and interesting' maths"
Mum: "Ooh, we love this sort of maths"