Jay Timotheus
jaytimotheus.bsky.social
Jay Timotheus
@jaytimotheus.bsky.social
Director of Mathematics for the Co-op Academies Trust. NCETM PD lead. Occasional author of musings on mathematics education.
Co-presenter on the MT talk podcast.
Reposted by Jay Timotheus
Sunday night seems the right time to post a gallery of (I hope!) every one of Catriona's geometry puzzles.

notes.mathforge.org/notes/publis...

Give it a moment to load ... there's a *lot* of them!

#GeometryPuzzles #UKMathsChat #mathsky
Puzzle Gallery in Notes
notes.mathforge.org
November 16, 2025 at 6:24 PM
Wet weekend in the UK!

Great excuse to stay in and listen to our MT Talk podcast...

The latest episode (OK we've only done two so far) is called 'Everyone can think mathematically.'

open.spotify.com/episode/5r1o...
Episode 2. Everyone can think mathematically.
open.spotify.com
October 4, 2025 at 7:26 AM
Episode 2. Everyone can think mathematically.
open.spotify.com
September 12, 2025 at 4:11 PM
September 8, 2025 at 3:57 PM
Reposted by Jay Timotheus
I mean… this is obviously right up my street!

pudding.cool/2025/08/onio...
Dicing an Onion, the Mathematically Optimal Way
There is more than one way to dice an onion…
pudding.cool
August 27, 2025 at 7:47 PM
12 classics. Apparently...

Free to access here...
padlet.com/admin3620/su...
July 15, 2025 at 8:56 PM
Reposted by Jay Timotheus
The latest edition of #MathematicsTeaching from @atmmathematics.bsky.social is giving me wonderful “Smash Hits” vibes with a centre spread poster 🌟
Particular highlight for me this issue is the article from @janehawkins.bsky.social on the importance of purposeful talk in maths 🗣️
June 14, 2025 at 1:52 PM
Reposted by Jay Timotheus
More Y9 trig #MathsToday: we ditched the tables in favour of drawing multipliers directly onto the triangles. This lesson went pretty well! Still just using sin and cos, and today I kept everything in one orientation as well.
May 21, 2025 at 4:27 PM
From the @mathshorizons.bsky.social report May 2025:

"We believe that reasoning and problem solving are not separate strands of maths, to be visited in isolation: they are part of what it means to do maths. The curriculum should reflect this truth at every level."
May 18, 2025 at 8:15 PM
Reposted by Jay Timotheus
My final session with @ncetm.bsky.social #Y5to8continuity WG for @nmmathshub.bsky.social. The opportunity to reflect deeply about division of fractions was such a treat - such deep thinking from WGPs. Many thanks @atmmathematics.bsky.social for the inspiring article atm.org.uk/write/MediaU...
May 5, 2025 at 4:27 PM
Reposted by Jay Timotheus
Did you know we can visualize rewriting square roots? Here's how!
April 5, 2025 at 2:07 PM
Reposted by Jay Timotheus
Y8 sequences in #MathsToday. This sequence of questions was great!
March 20, 2025 at 9:28 PM
"Alternatively, with a more connected approach to learning, the more mathematics you learn the easier the subject gets... you have an increasing number of conceptual connections... ideas make more and more sense... and you have less and less to consciously remember." Colin Foster in MT295
March 16, 2025 at 11:49 AM
Reposted by Jay Timotheus
Teaching advice from people who’ve never taught? No thanks! 👎

Every NCETM resource is created by people who know the realities of the classroom from first-hand experience – like our Secondary Team! 👀

#Maths #EduSky #UKMathsChat
March 3, 2025 at 8:52 AM
Reposted by Jay Timotheus
Amazing opportunity to be our next Trust Director of English! An exciting and varied role and the opportunity to have a national profile with our large Trust. Virtual information sessions are available, details are in the advert.

www.tes.com/jobs/vacancy...
Trust Director of English, Trust Wide - Tes Jobs
Co-op Academies Trust, United Kingdom
www.tes.com
February 21, 2025 at 10:07 AM
Great opportunity to join the subject director team at Co-op Academies Trust. Work across a range of schools and make a genuine difference in the lives of thousands of young people.

Link: www.coopacademies.co.uk/page/?title=...
February 21, 2025 at 12:49 PM
Reposted by Jay Timotheus
👏 Huge congratulations to @johnwestwell.bsky.social, the NCETM’s Director for System Leadership, on receiving an MBE!
John is the architect of the Maths Hubs Programme, now in its tenth year and supporting nearly 60% of schools in England.
New Year honour for the NCETM’s John Westwell
John Westwell, the NCETM’s Director for System Leadership, awarded an MBE for services to education
www.ncetm.org.uk
December 31, 2024 at 9:35 AM
This:
December 3, 2024 at 6:36 AM
Reposted by Jay Timotheus
Today’s poem celebrates Fibonacci Day. It’s called ‘Word Crunching’.
November 23, 2024 at 8:50 AM
Looking forward to reading this...
Marie Joubert and I are delighted to share our report for the JMC building on the Royal Society‘s Mathematical Futures thinking.

A vision for meaningful data education across the four nations of the UK.

It’s a vision, it’s ambitious! Link and 🧵👇🏽
November 19, 2024 at 2:47 PM
#MathsEdPoetry day 3 (well almost, I won't have time in the morning!)

The I-we-you structure in lessons can easily become an "I", then, "I-again-but-with-minimal-pupil-interaction", then, "Off-you-go-whether-you-understand-it-or-not" structure instead.

This is a pupil perspective.
November 17, 2024 at 10:31 PM
#MathsEdPoetry day 2.
Both the @atmmathematics.bsky.social principle "the power to learn rests with the learner" and Daniel Willingham's phrase "learning is the residue of thought" point to the idea that learning is done by the learner. It is not something that can be done to them. From MT287.
November 17, 2024 at 9:13 AM
Re-posting some of my #MathsEdPoetry on here over the next few days. This is 'Think with me not for me'. First published in MT277 @atmmathematics.bsky.social
November 16, 2024 at 12:10 PM
Reposted by Jay Timotheus
“Conceptualisation does not follow automatically from performing procedures several times, even if they are all done correctly.”
From the latest @atmmathematics.bsky.social journal.
October 25, 2024 at 7:55 PM
Reposted by Jay Timotheus
Also (though it possibly needs some rearranging) made a "Sometimes, Always, Never" on parts of a circle that I've got to say... I'm pretty chuffed with 👍
#mathschat
September 21, 2024 at 9:08 AM