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Big MathsJam Highlights, 2018

The dust is settling on the ninth Big MathsJam, and before I get too sad that it’s nearly a year until the next one, I put down some thoughts about what was so good about this one.

Conjoined Möbius Hat pattern by Woolly Thoughts

Pat Ashforth has written in to say that she’s released a new free knitting pattern for a Klein bottle hat with a – wait for it – twist!