Math Links for Week Ending Sept 25th, 2026

Featured Links

I always like it when I come across a structure that I've never seen before.
Curriculum Tags: All
https://ponderingplanning.wordpress.com/2026/09/09/what-would-happen-if-i-changed-the-question/

New blog post - Explores one of my favourite questions to ask after finishing a worked example: What would happen if I changed the question? wp.me/p9t8DE-s8 #mathschat #MTBoS #ukmathschat #iTeachMaths

[image or embed]

— Paul Rowlandson (@drrowlandson.bsky.social) September 12, 2026 at 3:20 AM

Resource Links

Who doesn't like a good New Order graph?
Curriculum Tags: All
https://bsky.app/profile/theericklee.bsky.social/post/3mvuqrsgjh22j

Math teacher at the gym... on the eliptical machine listening to New Order's Blue Monday and thinking, "I could re-create this animation on @desmos.com." Here is the result www.desmos.com/calculator/k... #ITeachMath

[image or embed]

— Erick Lee (@theericklee.bsky.social) September 19, 2026 at 9:06 AM

A lot of people are talking about the idea of whether AI makes learning math meaningless. Here is one take. I like the following question: "Have we caused this ourselves, with our focus on evaluating the product rather than process? "
Curriculum Tags: All
https://amiealbrecht.com/2026/09/10/should-we-take-the-keys-away-mathematics-in-the-age-of-ai/

Listening to the recent ICM panel discussion on 'What Is Math For in the Age of AI?' got me thinking about a much older question. What do we value in learning mathematics? Read my latest blog post here: amiealbrecht.com/2026/09/10/s...

[image or embed]

— Amie Albrecht (@nomadpenguin.bsky.social) September 9, 2026 at 10:28 PM

 

And here's another take: "Why Do We Need Human Mathematicians Anymore?"

Curriculum Tags: All
https://terrytao.wordpress.com/2026/09/19/why-do-we-need-human-mathematicians-anymore/

Video Links

I like problems that deal with trying to make sense of really big numbers
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2103578072872255878

Which is greater: 50⁹⁹ or 99! pic.twitter.com/1CyQrFJxJ1

— Howie Hua (@howie_hua) September 25, 2026

Image Links

This seems like an interesting way to extend the ideas of Pythagorean Theorem
Curriculum Tags: Gr8, MTH1W
https://x.com/jamestanton/status/2103385765589712963

A 7-11-13 triangle is a "near-miss Pythagorean triangle." We have
a^2 + b^2 = c^2 + 1
for integer sides a,b,c.
Other examples of such near misses? pic.twitter.com/GheH4776lg

— James Tanton (@jamestanton) September 25, 2026

I think you can ask this of most pieces of mathematical content. That is, it's mostly just "stuff". Exercise for the mind. 
Curriculum Tags: All
https://x.com/jamestanton/status/2102651930468110605

Actually ... let me press on this.

What are three reasons why students need to how to factor integer quadratic expressions? If the answer is that they will need to know this later on, what exactly is the "later on"?

[I am not being solely ornery here. I am happy to teach any… pic.twitter.com/c0JDfjJ8Mg

— James Tanton (@jamestanton) September 23, 2026

Math Links for Week Ending Sept 18th, 2026

Featured Links

Start a discussion, collaboration, or artistic rendering
Curriculum Tags: All
https://www.fractalkitty.com/mathober-2026-prompts/

#iTeachMath yay art!

[image or embed]

— Dr. Maria at Natural Math (@maria-naturalmath.bsky.social) September 11, 2026 at 7:29 AM

Resource Links

I love that there is a mathematical solution to a puzzle based on words
Curriculum Tags: All
https://www.sciencedaily.com/releases/2026/09/260911204910.htm

www.sciencedaily.com/releases/202... Researchers find a Wordle strategy that wins 99% of the time A mathematical strategy that prioritizes information over lucky guesses can solve Wordle 99% of the time #math #maths #MathSky #MTBoS #iteachmath #Wordle #ShannonEntropy #InformationTheory

[image or embed]

— Dawn Del Vecchio (@dawndelvecchio.bsky.social) September 17, 2026 at 5:59 PM

Video Links

He has talked about this before and I like it every time
Curriculum Tags: All
https://x.com/howie_hua/status/2100668449425158173

Teaching tip: consider saying "ask me at least 2 questions" instead of " do you have any questions?" to help normalize questions pic.twitter.com/IeNJbqKec0

— Howie Hua (@howie_hua) September 17, 2026

Image Links

Can your students do this without a calculator?
Curriculum Tags: MTH1W
https://bsky.app/profile/pwharris.bsky.social/post/3mvofmauijc2w

It's time for #MathStratChat! Rules: post your favorite or a clever solution! It's also fun to comment on other's strategies. Tell us about your reasoning. Like/share so others can see! #MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd

[image or embed]

— Pam Harris (@pwharris.bsky.social) September 16, 2026 at 8:30 PM

Math Links for Week Ending Sept 11, 2026

Featured Links

I don't think we can talk enough about dyscalculia
Curriculum Tags: All
https://crpe.org/the-missing-piece-in-math-reform-identifying-and-supporting-students-with-dyscalculia/

Dyscalculia may affect 3–8% of school-age children. So why is it so often overlooked? New CRPE research examines what schools and states can do to better identify and support students. crpe.org/the-missing-... #MathEducation #SpecialEducation

[image or embed]

— Great Lakes Center for Education Research and Practice (@greatlakescenter.bsky.social) September 11, 2026 at 12:03 PM

Resource Links

Solving linear equations as a cross word. I like self checking "worksheets"
Curriculum Tags: MTH1W
https://donsteward.blogspot.com/2012/02/linear-equations-crossnumbers.html

Y9 enjoyed reviewing linear equations in #mathstoday with this from the legendary Don donsteward.blogspot.com/2012/02/line...

[image or embed]

— Tom Gough (@mister-gough.bsky.social) September 10, 2026 at 5:26 PM

Video Links

Linear Algebra in the real world :-) Thanks to @JoelBezaire for this one
Curriculum Tags: All
https://bsky.app/profile/joelbezaire.bsky.social/post/3mv6wgtg53227

Another interesting tidbit to add to the list of Devin Cooley fun facts! 📚 (🎥: TT/natalieweyers07)

[image or embed]

— NHL (Bot) (@notnhl.bsky.social) September 10, 2026 at 4:48 PM

A great example of using circle theorems in a physical way (hint - chord, perpendicular bisector)
Curriculum Tags: MTH1W
https://x.com/pickover/status/2098195726358462802

Mathematical marvels, mysteries, and magic. Geometry and the eternal.

Shock your friends. Determine the center of a drawn circle without a straightedge or compass.

By math educator Tim Brzezinski, @TimBrzezinski, Used with permission. pic.twitter.com/BmJL2Jmu0o

— Cliff Pickover (@pickover) September 10, 2026

Image Links

This is a fun problem that can be done with a little bit of intuitive thinking at just about any grade level that knows how to multiply, but I suppose you could also use systems of equations as well
Curriculum Tags: Gr 7, Gr 8, MTH1W, MPM2D, MFM2P
https://bsky.app/profile/segarrogers.bsky.social/post/3mvajqnhmzs2z

I think the maths historians would probably call this a 'surveyors' problem. Am in the process of making a sheet of them ... unless anyone already has such a thing. (The 40 and the 72 are the areas of the rectangles formed by the respective diagonals). #UKMathsChat #iTeachMath

[image or embed]

— Segar Rogers (@segarrogers.bsky.social) September 11, 2026 at 8:07 AM

Math Links for Week Ending Sept 4, 2026

Featured Links

This is the 9th season of the podcast I produce for OAME. We call it OAMEtalks and the episodes are previews for our monthly webinars. The webinars repeats from our previous face to face conference and are mostly for our OAME members but the first one each season is free to anyone. That is with @TheErickLee on Sept 9th. Registration and other info is at our season 9 link.
Curriculum Tags: All
https://talks.oame.on.ca/season-9

Season 9 of @OAMEcounts OAMEtalks is live at https://t.co/0Tk5NbHctV This season has speakers from #OAME2026 https://t.co/E8Tg164goW featuring@TheErickLee K. Kozlowski, A. Painter, S. Tyrrel, M. Goveia, M. Munk, @KirstDy @webbkyle #MathChat #MTBoS #iTeachMath pic.twitter.com/C4nfTmcVHd

— OAMEtalks (@OAMEtalks) September 2, 2026

[New Podcast] This episode features @TheErickLee previewing their Sept 9th @OAMEcounts FREE webinar "Bigger on the Inside: The Surprising Power of Short Math Routines". More info: https://t.co/E8Tg164goW#MathChat #MTBoS #iTeachMath pic.twitter.com/qpe3t5Nn9N

— OAMEtalks (@OAMEtalks) September 2, 2026

Resource Links

Need to do some problem solving?
Curriculum Tags: All
https://karendcampe.wordpress.com/2026/09/01/september-calendar-problems-4/

September #ProblemSolving calendar is posted!
Enjoy yourself or w/students & share your thinking here or on the post. #MTBoS #iTeachMath #T3Learns #RecreationalMathhttps://t.co/stxyPngpRd

— Karen Campe (@KarenCampe) September 2, 2026

Let anyone who you think may be interested know. Thanks to @johannamath.bsky.social for letting us know about this
Curriculum Tags:All
https://awm-math.org/awards/student-essay-contest/

School is back in session, and that means it's time to start thinking about the 2027 AWM-MfA Student Essay Contest! ✅ Submission portal opens: November 1, 2026 ✅ Essays due: February 1, 2027 More details here: 🔗 awm-math.org/awards/stude.... #AWMMath #MathforAmerica #MfA #StudentEssay

[image or embed]

— The Association for Women in Mathematics (@awm-math.org) September 4, 2026 at 1:42 PM

 

Video Links

A good starter for any class at the beginning of the year
Curriculum Tags: All
https://x.com/howie_hua/status/2095603044251734241

This is the first mathematical task I give to my students. Can you find 1,000 in this grid? pic.twitter.com/xtVsnu7VVU

— Howie Hua (@howie_hua) September 3, 2026

Image Links

I definitely agree. Maybe an area question? Or is that too obvious
Curriculum Tags: All
https://bsky.app/profile/mrcorleymath.bsky.social/post/3mu64a3celc2v

Hey #iteachmath. This was the packaging my new coffee filters came in. There has to be a good math question in here somewhere.

[image or embed]

— Nick Corley (@mrcorleymath.bsky.social) August 28, 2026 at 3:34 PM