Math Links for Week Ending Sept 18th, 2026

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

#iTeachMath yay art!

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

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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

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

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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

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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

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

Math Links for Week Ending Sept 11, 2026

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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

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

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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...

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

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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)

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— 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

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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

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

Math Links for Week Ending Sept 4, 2026

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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

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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

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

 

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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

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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.

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

Math Links for Week Ending Aug 28th, 2026

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The power of functions and inequalities
Curriculum Tags: MCR3U, MHF4U
https://youtu.be/NbrvuXib9mk

forgot to share this: I made a tutorial on how to draw anything with a single equation/inequality. youtu.be/NbrvuXib9mk I tried animating it all in @desmos.com but gave up 1 minute into the video and used Davinci Resolve... it was fun to start improving my Desmos animation skills though! #iteachmath

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— Mathemagicland (@mathemagicland.bsky.social) August 28, 2026 at 12:49 PM

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Double percentages are always fun
Curriculum Tags: Gr7, Gr8, MTH1W
https://docs.google.com/presentation/d/1nG57nIzY7ZD_kQzsa2gDs9eJMDLzttZcHf4ZKMfKmp4/edit?slide=id.geb5d854f2a_0_0#slide=id.geb5d854f2a_0_0

In #MathsToday, "Which Deal is Better" sparked discussion about how percentages stack, and whether you can just choose a starting value arbitrarily (Yes!) docs.google.com/presentation... (Sorry - don't remember the source) 3/4

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— Carl Brandt Long (@carlblong.bsky.social) August 28, 2026 at 4:27 PM

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I love this video because it's a great example of how multiple components create complex motions. I think it's a great example of the ideas when combining vectors 
Curriculum Tags: MCV4U
https://x.com/PhilosophyOfPhy/status/2093341582137385462

Genius is the ability to independently arrive at and understand concepts that would normally have to be taught by another person.

- Immanuel Kant pic.twitter.com/3DcgbpUDYO

— Philosophy Of Physics (@PhilosophyOfPhy) August 28, 2026

I think this would be interesting to do with students under the guise of working with roots and calculations

Curriculum Tags: MTH1W
https://www.youtube.com/watch?v=-mXaU3N9e8Y

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A great Calculus meme
Curriculum Tags: MCV4U
https://x.com/howie_hua/status/2093444091271086441

Can you figure it out? pic.twitter.com/GQP4DOQFlT

— Howie Hua (@howie_hua) August 28, 2026

Fun with numbers 
Curriculum Tags: All
https://x.com/fermatslibrary/status/2093465647938154778

Take the digits of 197 and start a sequence where each term is the sum of the previous three:

1, 9, 7, 17, 33, 57, 107, 197

The original number turns up on its own. This is what defines a Keith number - a rare kind, named after Mike Keith, the mathematician who first remarked… pic.twitter.com/uPngkSEi2q

— Fermat's Library (@fermatslibrary) August 28, 2026

More number fun
Curriculum Tags: All
https://x.com/pickover/status/2093032310526333056

Mathematics.

This is a "Soul-Mate Number Pair." They love each other so much that they contain fragments of one another, forever bonded until the end of time. pic.twitter.com/is3E0qcIPF

— Cliff Pickover (@pickover) August 27, 2026

Some fun with "lines" of best fit
Curriculum Tags: MDM4U
https://x.com/infobeautiful/status/2093350835132436548 

Curve fitting methods & what they say https://t.co/cjbZOiC107 pic.twitter.com/hEhtx7HMCq

— Information is Beautiful (@infobeautiful) August 28, 2026

Math Links for Week Ending Aug 21st, 2026

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It's good to see the #MathGals hashtag is still being put to good use
Curriculum Tags: All
https://bsky.app/profile/janetdnuzzie.bsky.social/post/3mtf6urqixk2m

Woohoo for our 2026-2027 #MathGals Club! @MarianaBreaux, @WymanEvan, & myself invite ALL of our Grade 4 #PISDMathChat girls to join us for conversations focused on #MathGals of the Present & Future! @MrsNewell22 #ElemMathChat #NCSM #NCTM #TCTMTalk #TASMTalk

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— Janet Nuzzie (@janetdnuzzie.bsky.social) August 18, 2026 at 5:46 PM

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More expansion of what can be done with Desmos Notebook
Curriculum Tags: All
https://bsky.app/profile/desmos.com/post/3mtltddqhv22n

Aaaaand...action! You can now add buttons to your Desmos notebooks. #mathsky #iteachmath #desmos

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— Desmos Studio (@desmos.com) August 21, 2026 at 9:07 AM

I don't think we can have enough suggestions on how to think about math class now that AI has become so powerful
Curriculum Tags: All
https://blog.mathed.page/2026/08/19/teaching-math-in-the-age-of-ai/

Guest post by Liz Caffrey: how one middle school handles AI blog.mathed.page/2026/08/19/t... #mtbos #iteachmath #mathed

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— Henri Picciotto (@hpicciotto.bsky.social) August 20, 2026 at 11:29 AM

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It's always so hard for students to grasp the idea that there is only one way to arrange zero items
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2090470908477808790

Why is 0 factorial equal to 1? pic.twitter.com/fEXxFOOJGI

— Howie Hua (@howie_hua) August 20, 2026

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Who doesn't like natural geometry
Curriculum Tags: All
https://bsky.app/profile/celticqueen13.bsky.social/post/3mhwuyr3s322p

#dandelions The sacred geometry of dandelions.

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— Cat Hughes (@celticqueen13.bsky.social) March 26, 2026 at 1:34 AM

Math Links for Week Ending Aug 14th, 2026

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I don't think that there is any sort of "magic bullet" in education and sometimes somethings are adopted as being the thing to "solve" our problems only to be in effective or to have so many moving parts that they could never succeed. I liked this blog post because it's premiss, Fish Farts, comes from a podcast episode from RadioLab that I heard and so did the author. My take away is that often the answer lies somewhere in the middle - that is the solution often means using "a little of this and a little of that"
Curriculum Tags: All
https://duanehabecker.substack.com/p/the-fish-farts-of-education

I recently heard an episode of RadioLab about the Swedish Navy. It inspired me to think deeply about the Fish Farts of education. #iTeachMath #mtbos duanehabecker.substa...

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— Duane Habecker (@duanehabecker.com) August 12, 2026 at 10:00 AM

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I like to regularly give a plug for Slow Reveal Graphs, just in case someone has been living under a rock and hasn't heard of them.
Curriculum Tags: All
https://slowrevealgraphs.com/2026/08/13/share-of-households-with-air-conditioning-by-country-or-region-2025/

New #SlowRevealGraph Europe is about to be slammed with yet another heat wave. Why is this so dangerous -- especially when compare with high temperatures in the US and China? Link to slow reveal graph below. Via Our World in Data

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— Jenna Laib (@jennalaib.bsky.social) August 13, 2026 at 9:23 PM

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I think even for senior math classes this is a great way to start the year. A low floor math activity to initialize discussion.
Curriculum Tags: All
https://x.com/howie_hua/status/2087268039117218253

Since a new school year is coming up, I thought I'd share my first mathematical activity I do in my courses. pic.twitter.com/nLQEDqjTi9

— Howie Hua (@howie_hua) August 11, 2026

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When a student has a "hurdle" that is not visible, sometimes it's hard for teachers to see that supports are not only something in their learning plan but they are necessary for them to be on an even playing field with other students. I usually liken it to people who have to wear glasses. Those are their learning supports. 
Curriculum Tags: All
https://bsky.app/profile/ontspecialneeds.bsky.social/post/3mt267bdgds2x

Intelligence does not eliminate disability or special education needs. A student can be academically capable and still require significant support with executive functioning, communication, regulation, sensory needs, organization, social interaction or other areas. #Onted #Edusky

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— ONTSpecialNeeds (@ontspecialneeds.bsky.social) August 14, 2026 at 8:34 AM

Math Links for Week Ending Aug 7, 2026

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Normally we see classic NCTM Calendar problems from @KarenCampe but something slightly different this month with "Palette of Problems"
Curriculum Tags: All
https://karendcampe.wordpress.com/2026/08/02/august-calendar-problems-3/

The #ProblemSolving Calendar is back! (sort of). Check out the August Palette of Problems to set the stage in math class this school year. #MTBoS #iTeachMath #T3Learns #RecreationalMath #MathSky #MathsToday karendcampe.wordpress.com/2026/08/02/a...

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— Karen Campe (@karencampe.bsky.social) August 2, 2026 at 2:24 PM

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More shared resources 
Curriculum Tags: All
https://www.resourceaholic.com/2026/08/5-maths-gems-201.html

New! My 201st gems post. Ideas, updates and resources for maths teachers. 💎 www.resourceaholic.com/2026/08/5-ma... #mathstoday #ukmathschat #alevelmaths

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— Jo Morgan (@mathsjem.bsky.social) August 3, 2026 at 4:56 AM

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Math is everywhere, but, yeah, this is cool
Curriculum Tags: All

https://x.com/pickover/status/2085419972830896350

→ Math, Geometry, Ingenuity.

→ Alternative to complex robotic arms for reorienting products.

Credit: I didn’t upload this video to 𝕏. I’m pointing to a video residing in the 𝕏 stream of “Advanced humanoid forum”, 𝕏 ID “CobotUli” (Aug 5, 2026). pic.twitter.com/F5S9K5J0cT

— Cliff Pickover (@pickover) August 6, 2026

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A catenary is often mistaken for a parabola. 
Curriculum Tags: MPM2D, MCR3U, MCF3M, MBF3C
https://x.com/pickover/status/2083372449224065419

Our beautiful mathematical universe.

A chain hanging from points forms a "Catenary Curve." https://t.co/UPJgegOJYB pic.twitter.com/2bVEoBBfC6

— Cliff Pickover (@pickover) August 1, 2026