Topic of the week in the finitegroup.co.uk Discord - here @ayliean.bsky.social explains @wordle-tetris.bsky.social.
@peterrowlett.net
I teach maths and computing at a UK university and work as a maths communicator. Sheffield/Nottingham based. Editor, The Mathematical Gazette. Aperiodical blog, Mathematical Objects podcast. Part of http://finitegroup.co.uk peterrowlett.net
Topic of the week in the finitegroup.co.uk Discord - here @ayliean.bsky.social explains @wordle-tetris.bsky.social.
This amused me because weβd had a conversation in the Finite Group Discord where Iβd asked @mscroggs.co.uk how it worked framed around why had it put the L upright, then I saw your cries for it to rotate!
Ooo, I think I wrote a bit about that once for the BSHM journal. I donβt remember what I wrote exactly, it was a write up of a Raymond Flood talk that I was asked to report. www.tandfonline.com/doi/full/10....
This is excellent. Do you have a source for the image?
New podcast episode! To round of season 9 of our Mathematical Objects, @steckl.es and I enjoy chewing over the folklore that developed around the absent-minded professor caricature.
#MathsToday
My son (10)βs spelling homework this week was words ending βcialβ or βtialβ. One of them was βartificialβ. I asked if he knows what it means. He said βitβs the A in AI. It means fakeβ.
A student of mine has been investigating the history of the journal I'm now editing.
She reviewed a previous history published in 1996, and covered the intervening period by interviewing the last two editors and the production editor.
The resulting paper is now published online.
I really enjoyed listening to your conversation with @nhoskee.bsky.social. This podcast episode was thought provoking and insightful.
Thanks! cc @steckl.es
Mathematics of life Reaching the top While snakes and ladders is purely a game of chance, there is a way to bring strategy into it, says mathematician Peter Rowlett
Pick up a copy of New Scientist this weekend, or go to the website (subscription or via your library), and youβll find me writing about Snakes and Ladders and analysis of games of chance.
New podcast episode! @steckl.es and I have an interesting chat about maths, what it is, and how to communicate that, with @nhoskee.bsky.social inspired by the Public Math 'certified mathematical object' stickers.
aperiodical.com/2026/01/math...
A call for people to write for The Mathematical Gazette, and a plea for volunteers to peer review, from @amiemathematics.bsky.social. It's the journal I edit, behind the scenes we're getting ready to publish my first issue!
See what his teacher makes of e.Ο^e. π€£
Haha, itβs a page from last yearβs KS2 SATS paper.
Write a number in the box to make this correct. 3/5 < box over 100 < 0.7
Whatβs your answer here?
My son got it from school. He said 65. Very boring! I was wondering about 20Ο.
#MathsToday
New podcast episode! @steckl.es tells me about the maths of taxicabs.
Search βMathematical Objectsβ where you get podcasts, or get it here:
I thought it was the % of people who rated themselves 4 or 5, although Iβm not clear on that or what they were rating on. I havenβt dug through the report, but what I saw wasnβt huge on the technical detail.
One is a rating on a likert scale, the other is a score for ability which seems to be based on your maths qualifications and how you did on some questions. I wonder whether people answering knew β4β means βI will score βhighβ on your testβ, or whether they are totally different things.
Figure shows a gap between reported competence (those who score high or very high on the numerical competence index) and those who rated their competence 4 or 5 on a likert scale. Reported is around 60% and actual around 40% across a range of demographic groups.
The claim that "just about everyone overestimates their own ability to use everyday numbers" (p.19) which the Telegraph picks up on, is interesting. It refers to this graphic. 40% scored high/very high cf. 60% who thought they would, a pattern across all demographics. Is that "just about everyone"?
Report: people think using numbers is an important skill, more than half enjoy doing it (almost as many as enjoy reading), many don't score well but people want to improve their and their kid's abilities. richmondproject.org/wp-content/u...
Telegraph article ($): everyone's terrible at maths
Excited that the next Finite Group livestream will be @mscroggs.co.uk giving the behind-the-scenes scoop on his 2025 Advent Calendar. Will what I did to solve the puzzles match what he expected people would do? Attend live and get your scroggsvent questions answered!
www.patreon.com/posts/upcomi...
Having fun planning the next few livestream events for our online community for maths fans - join the Finite Group, and you can watch interesting people chat maths one hour a month, and be part of our Discord community all year round! finitegroup.co.uk
Realising that I am now actually the Editor of The Mathematical Gazette. I have been saying "I'm the next Editor, starting in 2026" for a while, but now it actually is 2026! Getting ready to publish my first issue in March.
www.tandfonline.com/journals/tmg...
New podcast episode: Mathematical Objects: Venn diagram with Keisha Thompson
* creativity, e.g. can I use floor/ceiling, double-factorial, other exotic stuff - you donβt need to, but if you like to, sure, and it might help if you decide to push beyond 10.
Lots of replies to this (many spoilers) - I forgot some of the clarifications people sometimes need, oops. Rules are a little loose because this encourages creativity. Some people donβt like including β, some like to include concatenation. Generally () included & symbols before the first 2 are fine.
Happy to report the 2026 game works.
So: place standard mathematical operators (+βΓΓ·β!, that sort of thing) between 2, 0, 2, and 6, keeping the digits in order without concatenation, to make the numbers 0β10.
How many can you get?
#MathsToday
Particularly mathematical New Years Honours 2026 - just a couple this year, anyone spot any more?
#MathsToday
Merry Christmas!
Iβve enjoyed the @mscroggs.co.uk puzzle advent calendar - prizes to be won if you complete the puzzles this year www.mscroggs.co.uk
Something else Iβve enjoyed being part of: the Mathematically extra-complicated Secret Santa 2025 β @tomvii.bsky.socialβs video:
youtu.be/4pG8_bWpmaE
Teaser 3300 Peter Rowlett A Faulty Bet
I wrote a puzzle in todayβs Sunday Times. Also on the last page of this PDF: extras.thetimes.co.uk/web/public/p...