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Big MathsJam

@bigmathsjam.bsky.social
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Big MathsJam is the annual UK MathsJam Gathering - an opportunity to meet other maths fans and share puzzles, games and interesting problems. November 14-15 2026

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Big MathsJam @bigmathsjam.bsky.social · 01/10/2026
To get a sense of what it’s like joining the MathsJam Jam (Saturday night sing-a-long), check out these videos from our 2018 jam:
youtube.com
MathsJamJam 2018
Share your videos with friends, family, and the world
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Big MathsJam @bigmathsjam.bsky.social · 20/09/2026
Not sure what to expect from the MathsJam UK Gathering? We made this video with some past participants sharing why they love it:
youtube.com
MathsJam UK Gathering - trailer
The Big MathsJam, or MathsJam Annual UK Gathering, is an opportunity for like-minded self-confessed maths enthusiasts to get together and share stuff they like. Puzzles, games, problems, or just anything they think is cool or interesting. Find out more by visiting mathsjam.com/gathering. 1-minute v
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Big MathsJam @bigmathsjam.bsky.social · 17/09/2026
The MathsJam Jam is a rousing singalong to mathematical covers of well-known songs. Anyone can submit lyrics - find out how at www.mathsjam.com/gat...
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Big MathsJam @bigmathsjam.bsky.social · 10/09/2026
We’d also love to spread the word about MathsJam more widely - if you can post on social media about how great it is, that would be fab. Include a link to mathsjam.com/gatheri... so people can find out more, tag in Big MathsJam and use the hashtag #bigmathsjam!
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Big MathsJam @bigmathsjam.bsky.social · 10/09/2026
We can provide support to new speakers, advise on topics and give feedback - email gathering@mathsjam.com if you’re not sure. The form to submit talks is in the email you get when you register for the event.
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Big MathsJam @bigmathsjam.bsky.social · 10/09/2026
If you’d like to give a talk, the deadline is 19th October so you’ll need to book soon to be able to submit one. We’d love to have more talks from people who haven’t spoken before - whatever interesting bit of maths you want to share, we want to hear about it.
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Big MathsJam @bigmathsjam.bsky.social · 10/09/2026
There’s only two months to go until this year’s Big MathsJam UK Gathering - if you haven’t already booked your tickets, head to mathsjam.com/gatheri... to find out all the details and grab your spot. Previous events have fully sold out, so make sure you don’t miss your chance!
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Matthew Scroggs @mscroggs.co.uk · 09/09/2026
I finally remembered to but my ticket for this year's @bigmathsjam.bsky.social today. If you've not been before, it's an excellent weekend of maths fun and you should definitely come. Details and ticket booking at mathsjam.com/gathering/uk/.
mathsjam.com
MathsJam UK Gathering | MathsJam
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Big MathsJam @bigmathsjam.bsky.social · 07/09/2026
Want to help out with this year’s MathsJam UK Gathering? We need volunteers to help with running the event, organising lifts for attendees, and many other things! Email volunteer@mathsjam.com if you can help.
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Big MathsJam @bigmathsjam.bsky.social · 02/09/2026
In-person tickets are selling fast for the MathsJam UK Gathering - join us (in-person or remotely!) for a weekend of recreational maths in a conference centre and meet others who also love maths! Details at www.mathsjam.com/gat...
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Big MathsJam @bigmathsjam.bsky.social · 28/08/2026
Last year’s talk topics included cutting things into ninths, backwards prime numbers, and a symmetry-based dance routine. See the full list of previous talks in our archive: www.mathsjam.com/gat...
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Big MathsJam @bigmathsjam.bsky.social · 20/08/2026
On the Saturday evening at MathsJam, we gather around the metaphorical campfire with instruments and voices to sing songs that have been reimagined with mathematical lyrics. Find out more, and how to submit lyrics, at mathsjam.com/gatheri...
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Big MathsJam @bigmathsjam.bsky.social · 11/08/2026
Tickets are still available for the 2026 MathsJam UK Gathering - grab one before we sell out! Join us in Kents Hill on 14-15 November for a weekend of recreational maths, meeting cool people and sharing interesting things! Details at mathsjam.com/gatheri...
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Kevin Houston @kevinhoustonmath.bsky.social · 04/08/2026
Just booked for the Annual MathsJam Gathering in November! www.mathsjam.com/gathering/uk/
mathsjam.com
MathsJam UK Gathering | MathsJam
The MathsJam UK Gathering ('Big MathsJam') is an annual event for maths enthusiasts to get together and share recreational maths, puzzles, games and anything else they think is cool or interesting.…
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Big MathsJam @bigmathsjam.bsky.social · 03/08/2026
Spaces are filling up quickly for this year's MathsJam Gathering! Still a few early-bird spaces available, so grab your spot now while you can! More info and booking details at mathsjam.com/gatheri...
Graph showing bookings for this year's MathsJam Gathering: a blue line showing the number of booked tickets has crept up from 0 and is now hovering below 100
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Big MathsJam @bigmathsjam.bsky.social · 02/08/2026
What can you expect if you attend the MathsJam UK Gathering? Interesting maths talks, puzzles, competitions, toys, games and art, as well as cool people, great conversations and serendipitous occurrences! Book now at mathsjam.com/gatheri...
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Big MathsJam @bigmathsjam.bsky.social · 23/07/2026
If you’re already booked for the Gathering, you should have had an email including a link to submit your talk - the deadline is 19th October. More info on talks at mathsjam.com/gatheri...
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Big MathsJam @bigmathsjam.bsky.social · 15/07/2026
Want to know what the MathsJam Gathering is like? This video has past attendees sharing their favourite bits! Book now at mathsjam.com/gatheri... youtube.com/watch?v=...
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Big MathsJam @bigmathsjam.bsky.social · 12/07/2026
Tickets for the MathsJam UK Gathering cost just £210 for a full weekend, including all sessions and food (or £350 for two sharing), with further discounts for unwaged, and for the first 101 early birds to book. Book now by visiting mathsjam.com/gatheri...
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Big MathsJam @bigmathsjam.bsky.social · 09/07/2026
Want to join the MathsJam UK Gathering remotely? That’s also an option, with tickets only £20. Book now by visiting mathsjam.com/gatheri...
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Big MathsJam @bigmathsjam.bsky.social · 03/07/2026
For this year's MathsJam UK Gathering, the early-bird cutoff is a number of tickets - the first 101 people to book will get a discount, so don't miss out! The Graph of Doom is already looking quite steep, and more than half the early-bird spaces are gone already...
A graph showing bookings for MathsJam 2026. The graph has a line for 'Attending' which goes up steeply from 0 at -160 days to just over 50 at -135 days, and a line for 'Remote' that's still fairly low. There is a faint diagonal line which the 'Attending' line is currently above.
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Big MathsJam @bigmathsjam.bsky.social · 30/06/2026
Last year’s MathsJam UK Gathering talk topics included Nintendo Wii games, paper size ratios and knitted monads. See the full list of previous talks in our archive: www.mathsjam.com/gat...
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Big MathsJam @bigmathsjam.bsky.social · 22/06/2026
The UK MathsJam Gathering includes four sessions of lightning talks sharing maths puzzles and interesting things, generous coffee breaks, evening table activities, a bake-off, a sing-a-long, two lunches and dinner. Join other maths fans for a recreational maths extravaganza! mathsjam.com/gatheri...
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Big MathsJam @bigmathsjam.bsky.social · 17/06/2026
Want to know what MathsJam is like? We made this video of some past attendees sharing their favourite things about MathsJam - book now at mathsjam.com/gatheri... youtube.com/watch?v=...
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Big MathsJam @bigmathsjam.bsky.social · 12/06/2026
Booking is now open for the 2026 MathsJam UK Gathering! Join us in Kents Hill on 14-15 November for a weekend of recreational maths, meeting cool people and sharing interesting maths! Details at mathsjam.com/gathering/uk
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Big MathsJam @bigmathsjam.bsky.social · 03/12/2025
Did you know we also have a MathsJam annual gathering in Oceania? The Oceania MathsJam Gathering (OMG) has shared this video of their 2025 public keynote talk, a fun talk on charts and data visualisation from Dr. Christoph Bartneck of Canterbury University, NZ:
youtu.be
OMG25 Keynote talk: Information Is Beautiful by Dr Christoph Bartneck
Abstract: In an age of fake news and misinformation, data visualisation has become essential for building bridges between experts and the general public. Creating not only truthful, but also functional, beautiful, and insightful visualisation is an art form. For far too long have we been plagued by,
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Big MathsJam @bigmathsjam.bsky.social · 01/12/2025
Attendees of this year's Big MathsJam UK Gathering should now have had a post-event email with links to session recordings and some follow-up info. We hope you all had a lovely time, and make sure you're on our mailing list to get the details for 2026! mathsj.am/ukg-mailin...
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PRL @usrbinprl.bsky.social · 23/11/2025
Arrived at #MathsJam on Friday to find my front door key tangled up in my keyring. Many mathematicians (>10) had a go at untangling it. No go. Stupid o'clock Sunday morning, heading to check out as I had to miss the final day, I pull my keys from my back pocket. All untangled. #MathsJam trolling me.
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Tommaths (he/him) @teakayb.mathsy.space · 23/11/2025
I wanted to make a poster about this for the new Big #MathsJam feature, but I don't have a printer, so:
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Tommaths (he/him) @teakayb.mathsy.space · 23/11/2025
Also of potential interest to Big #MathsJam folk & other maths fans: don't forget to submit recent maths stuff ready for December's Carnival of Mathematics: aperiodical.com/carnival-of-...
aperiodical.com
Carnival of Mathematics
The Carnival of Mathematics is a monthly blogging round up hosted by a different blog each month. The Aperiodical will be taking responsibility for organising a host each month, and links to the mo…
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Tommaths (he/him) @teakayb.mathsy.space · 23/11/2025
Big #MathsJam -ers who took the train home today and are also movie fans might have recognised the railway station building from 1987's Superman IV. Various other buildings in CMK were used as locations for bits of Metropolis in the movie. www.bbc.co.uk/news/uk-engl...
bbc.co.uk
Superman IV film recreated in Milton Keynes 30 years on - BBC News
An artist recreates 10 minutes of the 1986 film Superman IV: The Quest For Peace, where it was originally shot in Milton Keynes.
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Dr Smoky Furby @drsmokyfurby.bsky.social · 23/11/2025
Martin Whitworth says passports are size A6.5 #mathsjam
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Claire @clairodactyl.bsky.social · 23/11/2025
The real winner of my #mathsjam competition is me, who got all these incredible frog pictures!
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Colin Beveridge @icecolbeveridge.mathstodon.xyz.ap.brid.gy · 23/11/2025
Fabulous weekend at Big #Mathsjam, sorry to have to leave before the end. I love the little bubble of maths joy I get to be part of.
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Dr Smoky Furby @drsmokyfurby.bsky.social · 23/11/2025
@bigmathsjam.bsky.social is officially over! Many thanks to everyone who organised, contributed to it, maintained the Gather town remote space etc. #mathsjam #remoters 👏👏👏
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Carol Jones @carolmjones.bsky.social · 23/11/2025
Lovely weekend at #mathsJam . Thanks to all those who organised and those who gave talks. Hope to see you all next year! Safe journey home everyone.
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Tommaths (he/him) @teakayb.mathsy.space · 23/11/2025
Another excellent Big #MathsJam. Somehow I'm less tired than usual. Maybe it's the travel that does it‽
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Claire @clairodactyl.bsky.social · 23/11/2025
Had a lovely weekend at @bigmathsjam.bsky.social getting lots of mathsy inspiration from all the best people, but I'd be lying if I said that I wasn't also glad to be going home to destimulate!! Thanks so much to Colin Katie, Scroggs and everyone else who helped for a brilliant time! #Mathsjam
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
And we're all done with the MathsJam UK Gathering for 2025! Thanks to everyone who came along and joined us - in-person or online - and who gave talks, volunteered to help or brought along interesting maths to share! Hope to see you all again next time!
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
Finally, to wrap up MathsJam for this year, Colin Wright got us thinking about compass and straight-edge constructions of a regular pentagon, and how we know such a construction is exact.
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
For the penultimate talk of MathsJam, Nancy Blachman shared a mathematical magic trick that can be accomplished in multiple ways. See more at
jrmf.org
Cat, Dog, and Mouse Magic
Can you fill each grid with red and yellow tokens?
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
Raphael Colman talked to us about creating knitting stitch diagrams using Haskell. How can you average colours to make a pixellated image look good knitted?
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
Next, Barney Maunder-Taylor shared what happens when you glue a square based pyramid and a triangular based pyramid together. Can you prove that the volume of the square-based pyramid is twice that of the triangular?
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
To start the final set of talks at #mathsjam, Vanessa Madu sharred her explorations of sequences of consecutive odd semiprimes. You can read her blog post about it here:
vanessamadu.com
Rabbit Hole #2 - Consecutive *Odd* Semi-Primes | Vanessa Madu
What is the longest possible chain of consecutive odd semi-primes?
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
And the winner of best circumvention of the rules was Guveer's small box: mathsjam.com/gatheri...
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
Highlights of the competitions included prizes of one eighth of an issue of New Scientist, and a bar of chocolate wrapped in the full worked solution to the puzzle. Dave's poly filler competition won best competition and got the most entries: mathsjam.com/gatheri...
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
And to finish this session, we've announced the winners of the competitions - the bakeoff winners are now listed on the cakes page: mathsjam.com/gatheri...
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
Ben Handley wrapped up the last session before lunch - he has been exploring skittles, building on previous Mathsjam talks by Clare Wallace, looking at the probability of finding identical packs of skittles. Turns out the distribution of skittles is uniformly independently random!
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
Next up, Michael Borcherds shared with us his favourite shape - the 14th Stellation of the Icosahedron - and how to 3D print it. Try it yourself:
makerworld.com
14th Stellation of the Icosahedron (modular 60) by murkle MakerWorld: Download Free 3D Models
Boost MePlease boost for more models like this!You need to print 60 copies of this and superglue 240 magnets (6x3). Seven fit on a plate (P1S) so in that case print 9 plates (or 8-and-a-bit) The three plates have different depth magnet holes. Plate 3 works for the cheap magnets from AliExpress which (in my experience) all seem a little thinner than 3mm See pictures for assembly, make sure the magnets have the correct N/S orientation: each piece has 2 N and 2 Sthe “middle” 2 holes have the same orientation and the “edge” 2 have the opposite to thatglue a few and TEST that they assembly OKI've printed this in Elegoo silver Silk PLAYou can modify the magnet holes here https://www.geogebra.org/classic/n4fahkbc (change eg depth and export as STL)
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Big MathsJam @bigmathsjam.bsky.social · 23/11/2025
Starting the penultimate session of #mathsjam 2025, Kristin Ohlmann showed us how the digits of pi and tau can be used to improve visibility of her unicycle. And she's actually brought it with her to MathsJam! Here's her Python code:
cloud.uol.de
Circles
Cloud Storage - Carl von Ossietzky Universität Oldenburg
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