Math Links for Week Ending Oct 24th, 2026

Featured Links

This reminds me that a Desmos activity doesn't need a lot of bells and whistles to be useful. Thanks to @MaryBourassa.bsky.social for this one
Curriculum Tags: MHF4U
https://classroom.amplify.com/activity/5623e5c61dd697a010ec19cb

Resource Links

Do you want some math-centric fun things designed by some of the best math/science communicators on the web? Look no further
Curriclum Tags: All

https://mathsgear.co.uk/pages/about-us

Did you know that the Maths Gear newsletter is still written by a human?! I am that human! and if you want to receive the newsletter which comes out on average once a month, you can do so here mathsgear.co.uk/pages/newsle... The next one is scheduled for today at 3:33pm, so you have time! 💗

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— Ayliean (@ayliean.bsky.social) October 23, 2026 at 6:38 AM

Video Links

I have seen this as a static image but I think this might be the first video version that I can remember
Curriculum Tags: MCR3U, MHF4U
https://x.com/Math_files/status/2113322273512055129

When functions begin to dance, even the world’s greatest dancers lose the rhythm of their steps. https://t.co/eNxJekdoPa

— Math Files (@Math_files) October 22, 2026

I have said it before but I like talking about this issue.
Curriculum Tags: MTH1W, MPM2D
https://x.com/howie_hua/status/2113386955262267394

Four arguments for why 0.9 repeating equals 1 https://t.co/3qJCuIWoB9

— Howie Hua (@howie_hua) October 22, 2026

Nice visualization of powers of 3
Curriculum Tags: MTH1W, MPM2D, MCR3U
https://x.com/fermatslibrary/status/2113588733324759122

Powers of 3 https://t.co/obphgRUv7N

— Fermat's Library (@fermatslibrary) October 23, 2026

Image Links

Who doesn't love Pythagorean Tripples in the calendar?
Curriculum Tags: All
https://bsky.app/profile/mathnerd1729.bsky.social/post/3mykzrjqhwc2k

I missed it the previous time it happened due to being busy with a close relative's birthday, so I had to make sure to acknowledge it earlier this time otherwise I'd definitely get my nerd card revoked! #MathSky #Mathematics #PythagoreanTheorem #MathChat #MathsChat

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— Math Nerd 1729 (@mathnerd1729.bsky.social) October 23, 2026 at 4:36 PM

This can be scary :-)
Curriculum Tags MDM4U
https://bsky.app/profile/curiouspolymath.bsky.social/post/3myipfi4tqc2w

#mathsky

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— Pete Wung The Curious Polymath (@curiouspolymath.bsky.social) October 22, 2026 at 6:25 PM

 

Math Links for Week Ending Oct 16, 2026

Featured Links

I love this interview with @stevenstrogatz, especially when he actually swears :-) All joking aside, I like the way he talks about the issues of how AI is now taking down some of the biggest math theorems and causing an existential crisis among mathematicians.
Curriculum Tags: All
https://radiolab.org/podcast/math-vs-machine

It's always fun to go on @Radiolab. Hope you enjoy this episode! https://t.co/jvGwLIaMDk

— Steven Strogatz (@stevenstrogatz) October 9, 2026

Resource Links

A combinatorics card game for your students
Curriculum Tags: MDM4U
https://jclevelandtran.com/2022/01/26/letter-scramble/

Played this game in my Pre-Calc class today. I think it might be one of the best games I've made - they all had lots of fun AND it gave them lots of practice. jclevelandtran.com/2022/01/26/l... #iteachmath

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— James Cleveland-Tran (@jclevelandtran.com) October 15, 2026 at 2:45 PM

Video/Audio Links

I should have posted this earlier but OAME members can see the recording of this webinar in the Members Only section of the OAME website
Curriculum Tags: All
https://talks.oame.on.ca/season-9



Ye old licence plate problem. A classic of any combinatorics lesson
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2110851341283463632

I was wrong in my last video about California license plates 😱 https://t.co/UJubw4rZaH

— Howie Hua (@howie_hua) October 15, 2026

Image Links

A quick function matching worksheet
Curriculum Tags: MHF4U
https://bsky.app/profile/morrismaths359.bsky.social/post/3mxwlnecvts27

#Mathstoday My year 11s had a go at this lovely Dr Austin task today - Recognising graphs. They not been exposed loads to cubic of reciprocal graphs so did find it hard at time but most of them got there in the end.

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— Miss Morris (@morrismaths359.bsky.social) October 15, 2026 at 1:30 PM

Math Links for Week Ending Oct 9, 2026

Featured Links

I've not watched the show Traitors but I have started to now that @FrySquared is a contestant on the current season of Celebrity Traitors. Here she explains the math of how she is going to figure out who the traitors are using combinatorics among other things. Thanks to @mathsjem for pointing this out.
Curriculum Tags: MDM4U
https://www.youtube.com/watch?v=twDvxNooI_4

Resource Links

I think that people, in general, not just students, have trouble understanding big numbers. At this link you can try to spend all of Elon Musk's money.
Curriculum Tags: All
https://www.wired.com/story/spend-elon-musk-money/

Big numbers are very hard to develop an intuition for. That's why this little game from @wired.com is so surprising and fun www.wired.com/story/spend-...

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— Dan Finkel (@mathforlove.bsky.social) October 9, 2026 at 2:04 AM

Video Links

It's interesting that trisection does this 
Curriculum Tags: Gr8, MTH1W
https://x.com/Math_files/status/2106593150022357186

Every triangle hides an equilateral triangle, even when the original triangle is completely irregular. Take any triangle. Divide each of its three angles into three equal parts. Now consider the intersections of the adjacent internal angle trisectors. The three intersection points always form an equilateral triangle. No condition is required: The original triangle may be acute, obtuse, scalene or isosceles. Its sides may have any lengths. Its angles may be completely different. Yet the hidden triangle always has three equal sides and three 60° angles. This is Morley’s trisector theorem. Local divisions of three unrelated angles produce perfect global symmetry.

— Math Files (@Math_files) October 4, 2026

I like how he always tries to visualize things
Curriculum Tags:MDM4U
https://x.com/howie_hua/status/2108280168280465592

Okay I MIGHT have found a new way to visually obtain the harmonic mean because I could not find this visual anywhere. Even if it's not new, I'm still really proud of it because it's understandable and valid. https://t.co/RSq0na7X1Y

— Howie Hua (@howie_hua) October 8, 2026

Neat visualization of Fibonacci numbers

Curriculum Tags: All

https://x.com/TheMathFlow/status/2108117450613227797

Fibonacci: From curves to cubes and back to curves. https://t.co/YnxSAaa8KL

— The Math Flow (@TheMathFlow) October 8, 2026

Image Links

@Howie_Hua has focused a lot on mean lately
Curriculum Tags: All
https://x.com/howie_hua/status/2106418942420115798

Mean Girls but it's a movie about Cady learning the different types of mean https://t.co/i8Oii0HDJ3

— Howie Hua (@howie_hua) October 3, 2026

Though I think that kids vape more than they smoke now, this is still good data
Curriculum Tags: All
https://x.com/infobeautiful/status/2108618436574085414

How many people still die of lung cancer after quitting smoking? By age (by reddit user @daysleeperrr) https://t.co/r9skK72m6p

— Information is Beautiful (@infobeautiful) October 9, 2026

Math Links for Week Ending Oct 3, 2026

Featured Links

I appreciate that @KarenCampe brings these old problem sets and makes them new again
Curriculum Tags: All
https://karendcampe.wordpress.com/2026/10/01/october-calendar-problems-4/

The October #ProblemSolving calendar is here!
Enjoy with your students or solve them yourself. Share your thinking here or on the post. #MTBoS #iTeachMath #T3Learns #RecreationalMathhttps://t.co/g9bmVoHrvy

— Karen Campe (@KarenCampe) October 1, 2026

Resource Links

Matrices are no longer in the Ontario Math curriculum but you can still employ them when dealing with 3D vectors
Curriculum Tags: MCV4U
https://help.desmos.com/hc/en-us/articles/49219289186317-Matrices

You can finally get your ducks in a row (and column). Type “matrix” in any Desmos graphing tool to get started. Learn more: help.desmos.com/hc/en-us/art... #iteachmath #mathsky #linearalgebra #matrices

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— Desmos Studio (@desmos.com) October 2, 2026 at 10:14 AM

Make your own suggestion
Curriculum Tags: All
https://x.com/howie_hua/status/2105676830435061899

Since it's spooky season, make a math term scary in the comments. I'll start:

BOOclidean algorithm

— Howie Hua (@howie_hua) October 1, 2026

Video Links

This is a good context for describing what a fraction could represent
Curriculum Tags: Gr7, Gr8
https://x.com/howie_hua/status/2106123154565583126

I have seen a LOT of people overthink this type of problem. Are you overthinking it? pic.twitter.com/bPbH0XdO0Y

— Howie Hua (@howie_hua) October 2, 2026

It's good to understand how different averages are calculated but more, what they represent.
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2106381257919881275

Happy Mean Girls Day! Let's learn about the arithmetic, geometric, and harmonic mean pic.twitter.com/NIQBA7SbBn

— Howie Hua (@howie_hua) October 3, 2026

Image Links

The printing is so small it's hard to see but this is perfect when you want to show your kids what a useless graph is. Thanks to @JoelBezaire for this one
Curriculum Tags: MDM4U
https://bsky.app/profile/joelbezaire.bsky.social/post/3mwvpim5q7s22

This is the funniest thing I've seen today, possibly ever

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— Tim Carmody (@tcarmody.bsky.social) October 2, 2026 at 10:39 AM