Cully by night

I gave my new armbands their first outing with The Cully Crawlers. These are fab. You can charge them by USB and they are really bright, and even flash away if you choose that setting.

We are back to plodding the streets now that it is dark - no more cross country for us for a while.

Leo enjoyed the visit to school by Simon Singh who created the Top Top Set Maths programme he is on. I didn’t enjoy the aftermath so much as Leo quizzed me on left and right truncated multi digit prime numbers - my poor old brain cells made hard work of that.