Math Links for Week Ending Aug 28th, 2026

Featured Links

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

Resource Links

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

Video Links

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

Image Links

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

Featured Links

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

Resource Links

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

Video Links

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

Image Links

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 July 30, 2026

Featured Links

I love that most of these little interactives don't necessarily have direct connections to the curriculum but I appreciate that (among other things) they say the "Tools are geared towards curiosity" and "Most tools don't explain themselves on purpose.". That makes them great for exploring. Be sure to read the link in the post for a primer but go directly to the interactives by the link below
Curriculum Tags: All
https://www.inquiries.link/

I wrote a post about the embedded interactives on my site: www.fractalkitty.com/about-intera... #mtbos #indieWeb #mathLearning #iTeachMath #iteachStem #mathInquiry #p5js #svelte #d3js

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— Fractal Kitty (@fractalkitty.com) July 31, 2026 at 6:45 PM

Resource Links

As an administrator, part of my job is evaluating staff. One of my go to asks is for teachers to work on how they both ask and answer questions of students (I am constantly suggesting that if students ask "is this right?" to always answer with "Tell me why you think it's right" as well as helping students think more like scientists (for both math and science classes). Regardless, here are some other ideas
Curriculum Tags: All
https://www.edutopia.org/article/3-ways-give-feedback-math-teachers

You don’t have to be a math teacher in a past life to give good feedback to your school’s educators. ➗ Try these 3 approaches that help school leaders give math teachers valuable information about how to improve their teaching practices. #SchoolLeaders #ITeachMath

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— Edutopia (@edutopia.org) July 31, 2026 at 4:43 PM

I have been thinking about hosting a local viewing of this but this might be more convenient 
Curriculum Tags: All
https://watch.eventive.org/countedout/play/6a4e9346d83b4f14e2219f79

Have you seen Counted Out? Up til now it's only been available at watch parties and now you're invited. Here's your chance! RSVP to watch watch.eventive.org/countedout/p... #MathIsFigureOutAble #MathChat #MTBoS #ITeachMath #MathEd #Mathematics

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— Pam Harris (@pwharris.bsky.social) July 31, 2026 at 3:00 PM

Play Hexsum for free once a day
Curriculum Tags: All
https://hexsumgame.com/daily-2 

Try out today's daily HexSum puzzles! hexsumgame.com/daily-2 Also, support this endeavor with Pro account and unlock more modes and options. It's a one-time purchase of $7. Cheaper than a breakfast bagel and coffee up here in these parts. A 🐝 mode is coming :) -- #HexSumGame #gamedev #mathsky

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— Math Misery (@mathmisery.bsky.social) July 30, 2026 at 8:41 PM

Video Links

This is fun
Curriculum Tags: All
https://x.com/themathpulse/status/2082915776454066599

Mathematics Coming Alive

Credit: alanthebecker pic.twitter.com/kch78jSVKg

— Math Pulse (@themathpulse) July 30, 2026

Permutations with repeats, nice. 
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2082134978582991335

How many permutations are there of the letters of the word Rattata? pic.twitter.com/ML9eCdWktc

— Howie Hua (@howie_hua) July 28, 2026

I'm glad he clarified that these were not likely independent events and also liked that he showed the total probability should add to 100%.
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2083345246675722676

What's the probability of me catching a rifle and making a free throw? pic.twitter.com/kUQgh68ZzW

— Howie Hua (@howie_hua) July 31, 2026

Image Links

There is something about this question that I like. You could also ask students to come up with their own similar question.
Curriculum Tags: MTH1W, MPM2D
https://x.com/farman4x/status/2083175281041481877

Thousands of wrong answers.👀

One simple question.❔

Can you get it right? pic.twitter.com/0CYMVSFR8Q

— farmanX (@farman4x) July 31, 2026

Math Links for Week Ending July 10th, 2026

Featured Links

This post starts with asking to finish two similar but very different sentences "Math is ______" and "School Math is ______" and ends with reminders of several different structures to help students bridge the two statements.
Curriculum Tags: All
https://fawnnguyen.substack.com/p/the-anti-sentence

Last week in Phoenix, a teacher filled in "school math is ___" with one word: required.
New post about this deadpan truth. https://t.co/CCr9ymbVSY

— Fawn Nguyen (@fawnpnguyen) July 5, 2026

Resource Links

I'm always happy to share other posts like mine who share what people are doing for math on the net and @MathsJem does that quite a bit. 
Curriculum Tags: All
https://www.resourceaholic.com/2026/07/5-maths-gems-200.html

New! My 200th gems post. Ideas, updates and resources for maths teachers. 💎 https://t.co/xJGjdTPfeV#mathsgems #mathschat #teammaths #mathscpdchat #mathstlp pic.twitter.com/8GxU48UOK1

— Jo Morgan (@mathsjem) July 5, 2026

Video Links

Some combinatorics for you
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2074853362097344943

How many ways can 5 couples sit in a row if each person needs to sit next to their partner? pic.twitter.com/ghTvreJqOK

— Howie Hua (@howie_hua) July 8, 2026

Image Links

These types of relationships, to me, really show how math can be amazing. 
Curriculum Tags: All
https://x.com/pickover/status/2073891040075940072

Mathematics. Golden Ratio.

The dreams of humans touch on the eternal.
(Equation source: https://t.co/gnkiQFMrp2) pic.twitter.com/FWxL57VaD6

— Cliff Pickover (@pickover) July 5, 2026

Math Links for Week Ending June 19, 2026

Featured Links

I have mixed feelings about timed tests, but they can be useful for motivated students. Regardless I love this interface with the duelling timers and all the options you can use for the questions themselves. And there is not just math but biology, physics, chemistry, computer science and even english.
Curriculum Tags: All
https://classduels.com/

Here's something I've been working quite hard on recently: classduels.com/maths/ A Maths game featuring: - two-player (split screen, can be done on a interactive whiteboard) and single-player modes - 50+ topics across KS3-KS5 - a version for the Australian curriculum: classduels.com/maths/au/ 😉

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— Nathan Day (@nathanday.bsky.social) May 17, 2026 at 3:41 PM

Resource Links

Patterns? Of course it does
Curriculum Tags: All
https://studyfinds.com/van-goghs-brushstrokes-may-have-math-fingerprint/

studyfinds.com/van-goghs-br... Strokes of Genius: Van Gogh’s Paintings May Have a Mathematical Fingerprint #Math #Maths #MathSky #iteachmath #VanGogh #fractaldimension

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— Dawn Del Vecchio (@dawndelvecchio.bsky.social) June 18, 2026 at 1:42 PM

Lots of great problems, now available for free. Thanks to @EliLuberoff for pointing this out.
Curriculum Tags: All
https://www.citizenmath.com/

Video Links

Pokemon and expected value
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2067976421369368898

Which Pokémon move will do more damage per turn on average: Flamethrower or Fire Blast? Let's learn about expected value. pic.twitter.com/YzTxkYyGT2

— Howie Hua (@howie_hua) June 19, 2026

Image Links

Something to use in an exponential lesson about extrapolation
Curriculum Tags: MCR3U, MHF4H
https://bsky.app/profile/xkcd.com/post/3moj6x2c3fk2x

Messi xkcd.com/3260/

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— Randall Munroe (@xkcd.com) June 17, 2026 at 4:51 PM

Great for working with roots and simplifying 
Curriculum Tags: MTH1W, MPM2D
https://bsky.app/profile/percybuttons3.bsky.social/post/3mok5mpmbp222

Math Links for Week Ending May 29th, 2026

Featured Links

A couple of links to help students with exceptionalities. 
Curriculum Tags: All
https://autismspectrumnews.org/beyond-barriers-making-mathematics-accessible-for-autistic-students/
https://www.edutopia.org/article/supporting-neurodivergent-students-math

Hands-on math strategies can help autistic students build confidence, problem-solving skills, and greater independence. #Autism #MathEducation #SpecialEducation #Neurodiversity 📰 Read the article: https://autismspectrumnews.org/beyond-barriers-making-mathematics-accessible-for-autistic-students/

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— Autism Spectrum News (@autismspectrumnews.bsky.social) May 27, 2026 at 1:01 PM

These 5 instructional strategies can help you create a more supportive math classroom experience for neurodivergent learners! ✖️➕ #MathSky #ITeachMath #EduSky

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— Edutopia (@edutopia.org) May 28, 2026 at 7:39 PM

Resource Links

Need some Frustrum practice and resources? Look no further
Curriculum Tags: MTH1W
https://www.transum.org/Maths/Exercise/Frustum/

Well every day is a school day! It was while preparing this online exercise on frustums that I learned that there is more than one formula or method that can be used to find the volume. I live and learn. www.transum.org/Intro/?ID=1172 #mathsresources #mathschat #mathstoday #mathchat

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— transum.bsky.social (@transum.bsky.social) May 28, 2026 at 5:57 AM

Video Links

Last week @DesmosStudio introduced Desmos Notebook. Here's a brief mini tutorial on adding an existing graph.
Curriculum Tags: All
https://bsky.app/profile/desmos.com/post/3mmz67vks6s2j

Have you checked out Desmos Notebook yet? Importing your favorite Desmos graphs into Notebook is a great way to get started. What question should we answer next? #mathsky #iteachmath #iteachphysics

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— Desmos Studio (@desmos.com) May 29, 2026 at 2:30 PM

Those are like Peewee Herman cards :-)
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2060125131226361994 

I have two shuffled 52 card decks. If I reveal one card from each deck at the same time and I exhaust the decks, what's the probability of flipping the same exact card at least once? pic.twitter.com/coh3c8fLNK

— Howie Hua (@howie_hua) May 28, 2026

I love how the straight line motion produces the circular motion
Curriculum Tags: All
https://x.com/Rainmaker1973/status/2060403934246670336 

Each sphere is moving in a straight line, but the final motion is circularpic.twitter.com/nK4GjYXlZm

— Massimo (@Rainmaker1973) May 29, 2026

Image Links

I'm glad someone else was able to figure out what it was saying, cuz I couldn't
Curriculum Tags: MTH1W
https://bsky.app/profile/segarrogers.bsky.social/post/3mmwfpnfm7c2t

So I'm reading about the origins of algebra ... and I find this from Abū Kāmil in about 900CE ... and of course Kāmil's algebra (al-jabr!) could solve this. Pretty amazing really. #UKMathsChat #iTeachMath

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— Segar Rogers (@segarrogers.bsky.social) May 28, 2026 at 12:07 PM

Math Links for Week Ending May 22nd, 2026

Featured Links

This is a super cool new feature of @Desmos Studio (and it works with all the calculators). I can't wait to try it out. 
Curriculum Tags: All
https://www.desmos.com/notebook/fgedhep7ta/view

Introducing Desmos Notebook (beta), our newest tool that combines text, expressions, sliders, and graphs all in one place. As you get to know Notebook, we’d love to hear your feedback, feature requests, and any bugs you find. We can’t wait to see what you create! #iteachmath #mathsky #iteachphysics

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— Desmos Studio (@desmos.com) May 22, 2026 at 9:24 AM

 

Resource Links

Department heads don't always have avenues for advice. So any little bit helps
Curriculum Tags: All
https://www.resourceaholic.com/2026/05/tasks-for-summer-term.html

I wrote a post for new/inexperienced Heads of Maths about some of the things they can do this term to ensure their department hits the ground running in September. Hope someone finds it helpful!https://t.co/9pSJBYyr0E#mathschat #mathsgems #mathscpdchat #teammaths pic.twitter.com/Bw4So6nv4Z

— Jo Morgan (@mathsjem) May 17, 2026

Video Links

A couple of related videos about flipping coins. I like the problem context of the second one
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2057191476036288755
https://x.com/howie_hua/status/2057574765465104573

If you repeatedly flip a coin, which sequence is more likely to appear first: HTT or TTH?

Believe it or not, one is 3 times more likely to appear first! pic.twitter.com/u2SR5BPmEz

— Howie Hua (@howie_hua) May 20, 2026

In my last video, we saw that if we repeatedly flip a coin, there's a 75% chance that HTT will appear first in the sequence over TTH.

This is part of something potentially weirder. Let's learn about Penney's game. pic.twitter.com/vXhnKfr459

— Howie Hua (@howie_hua) May 21, 2026

Image Links

Nice variations
Curriculum Tags: All
https://bsky.app/profile/murrayh83.bsky.social/post/3mlqvgx6br222

Pattern block play! #21CenturyPB #iTeachMath

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— Hana Murray (@murrayh83.bsky.social) May 13, 2026 at 2:07 PM

Math Links for Week Ending May 15th, 2026

Featured Links

This is a neat video from the staff of the  Harvard Math dept. 
Curriculum Tags: All
https://www.youtube.com/watch?v=VI5fUKPK2No

Resource Links

This looks interesting. This part of the description caught my eye "....This training will be useful for dyslexia assessors who want to assess for dyscalculia.."
Curriculum Tags: All
https://www.patoss-dyslexia.org/Live-Webinars/development-and-understanding-of-mathematical-skills-within-primary-and-secondary-education/16299?OccId=22276

Join us on Wednesday 20 May for a live CPD webinar with Alison Tallentire, exploring how mathematical skills develop across primary and secondary education. 👉 Book: www.patoss-dyslexia.org/Live-Webinar... #MathsEducation #Dyscalculia #SpLD #PrimaryMaths #SecondaryMaths #InclusivePractice

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— Patoss (@patoss-dyslexia.bsky.social) May 15, 2026 at 7:15 AM

Video Links

@Howie_Hua continues to do some Pokemon themed math, this time with combinatorics. 
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2055022858578055532

How many different teams of 6 Eeveelutions are there when there are 8 Eeveelutions? pic.twitter.com/VHkgPcXJll

— Howie Hua (@howie_hua) May 14, 2026

Image Links

Looking for a discussion prompt dealing with proper and improper fractions?
Curriculum Tags: Gr7, Gr8, MTH1W
https://bsky.app/profile/mathsvault.bsky.social/post/3mlvkad2u3v2h

Discuss — Add And Subtract Improper Fractions And Mixed Numbers #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #MathsDiscussion #TalkTasks

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— Jon @ The Maths Vault (@mathsvault.bsky.social) May 15, 2026 at 10:30 AM

Math Links for Week Ending May 1, 2026

Featured Links

It is OAME2026 our annual Ontario Association for Mathematics Education annual conference. I presented 3 sessions this year. They can all be accessed at the link below
Curriculum Tags: All
http://bit.ly/oame-petro

I just finished My session on resources for teaching #quadratics in #math class at the @OAMElearns #OAME2026 conference. You can get the slides here:https://t.co/indBLptcoZ#MathChat #iTeachMath #MTBoS pic.twitter.com/noUx1lXUh4

— David Petro (@davidpetro314) April 30, 2026

My second session was about how to build @Amplify classroom tasks (without CL) at the @OAMElearns #OAME2026 conference:https://t.co/indBLptcoZ#MathChat #MTBoS #iTeachMath pic.twitter.com/I9cD8wqlsj

— David Petro (@davidpetro314) May 1, 2026

My third session was showing gr 7&8 #math teachers all the great premade @Amplify classroom tasks at the@OAMElearns #OAME2026 conference: https://t.co/indBLptcoZ #MathChat #MTBoS #iTeachMath pic.twitter.com/bIeHk820Cy

— David Petro (@davidpetro314) May 1, 2026

Resource Links

OAME - Great culminating activity for gr 9 math 
Curriculum Tags: MTH1W
https://drive.google.com/drive/folders/11Ofdgs5nGW4MITiB4ybyiIbuCD7DSKz4

Modelling #math by creating a Food Truck from Elysabeth Barnes at @OAMElearns #OAME2026 for grade 9 MTH1W. Get the folder of resources here:https://t.co/U3DBXYmbXY#MathChat #MTBoS #iTeachMath pic.twitter.com/IutecPjiHx

— David Petro (@davidpetro314) April 30, 2026

OAME - A great reminder of how important starters are. 
Curriculum Tags: All
https://docs.google.com/presentation/d/17wmTZGoxa-F-TU51b-uICcMzMn1Ksv5IKyWgn_odZ14/edit?slide=id.p#slide=id.p

It's @theericklee at #OAME2026 coming from the east coast to talk about the power of the first 5 min of class. With references to lots of #math class favs & including other curated math resources, check them all out here:https://t.co/OIKhSka87Y#MathChat #MTBoS #iTeachMath pic.twitter.com/cawZJxgcGi

— David Petro (@davidpetro314) April 30, 2026

OAME - Ideas that exploit AI for useful purposes in math class
Curriculum Tags: All
https://docs.google.com/presentation/d/1n-FZXTKSv6E4pG-VSgmJ0DDG8Y0qwCpT1VOFJvMwIeg/edit

Getting tips on using Google's Gemini Suite in #math class from @robinmath3 at the @oamelearns #OAME2026 conference.https://t.co/N0CSQwIVwP#MathChat #MTBoS #iTeachMath pic.twitter.com/N1zNJ5X7fo

— David Petro (@davidpetro314) April 30, 2026

OAME - Sound advice from Dr. Pam Seda
Curriculum Tags: All
http://tinyurl.com/SedaMay1

Lot's of great equity based resources shared by Dr. Pam Seda at the @OAMElearns #OAME2026 Conference Day 2 Keynotehttps://t.co/7hWJ5jVRLj#MathChat #MTBoS #iTeachMath pic.twitter.com/L6jMZ5ZRrj

— David Petro (@davidpetro314) May 1, 2026

OAME - Great session on how to turn regular rich problems into something better (and useful in a Thinking Classroom)
Curriculum Tags: All
https://www.kylewebb.ca/oame26

Great session from @webbkyle & @KirstDy on how to remix an already rich problem at the @OAMElearns #OAME2026 conference. They also shared some great problem solving resources:https://t.co/MCjVL2kWDe#MathChat #MTBoS #iTeachMath pic.twitter.com/am5ZHi0mjM

— David Petro (@davidpetro314) May 1, 2026

OAME - Free resources from @PWHarris
Curriculum Tags: All
 https://www.mathisfigureoutable.com/big

Free resource from @pwharris on numeracy strategies https://t.co/6vYAYMDn0k#OAME2026 pic.twitter.com/KY2FtUP2In

— David Petro (@davidpetro314) April 30, 2026

Video Links

A nice simple visualization of this classic probability problem. 

Curriculum Tags: All
https://x.com/howie_hua/status/2048452433895129532

This is a very common misconception in statistics:

If 1% of a population has a disease and the tests have a 5% chance of giving a false positive, what's the probability of having the disease given that we tested positive?

The answer is NOT 95%. It's actually way less. pic.twitter.com/HoLm7zOTjB

— Howie Hua (@howie_hua) April 26, 2026

More Pokemon probabilities
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2049585872966996285

If there is a 1/4096 shiny encounter rate, how many encounters do we need to have a 99% chance of encountering a shiny Pokémon? pic.twitter.com/z3PFlBZC4m

— Howie Hua (@howie_hua) April 29, 2026

Image Links

OAME - Great stuff from @PWHarris
Curriculum Tags: All
https://x.com/davidpetro314/status/2049841170008678512

"My job as an educator is to build kids brains, not to have them get answers to math questions" - @pwharris is the opening keynote at the @OAMEcounts #OAME2026 annual conference pic.twitter.com/ceG2En8q55

— David Petro (@davidpetro314) April 30, 2026

OAME - That's definitely the reason
Curriculum Tags: All
https://x.com/davidpetro314/status/2049847083906027563

What is the purpose of teaching math? - @pwharris

To develop mathematical reasoning #OAME2026 pic.twitter.com/0QMG97e8Ls

— David Petro (@davidpetro314) April 30, 2026

Math Links for Week Ending Apr 24, 2026

Featured Links

Who doesn't want a large bank of challenging math problems?
Curriculum Tags: All
https://phys.org/news/2026-04-world-largest-olympiad-math-problems.html

phys.org/news/2026-04... World's largest collection of Olympiad-level math problems now available to everyone #Math #Maths #MathSky #MathOlympiad #iteachmath

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— Dawn Del Vecchio (@dawndelvecchio.bsky.social) April 23, 2026 at 5:09 PM

Resource Links

It's too late for Fawn but you can still check out the last one in this series or the summaries on the podcast
Curriculum Tags: All 
https://www.strongermath.com/mrc/

Hi hi! It's been a while.
I'm excited to share how I facilitate a 𝘃𝗶𝘀𝘂𝗮𝗹 𝗽𝗮𝘁𝘁𝗲𝗿𝗻𝘀 routine! Hope to learn from you also.

𝗦𝘂𝗻𝗱𝗮𝘆, 𝗔𝗽𝗿𝗶𝗹 𝟭𝟵, 𝗮𝘁 𝟭:𝟬𝟬 𝗣𝗠 𝗣𝗦𝗧
Register for the Math Routine Collaborative at https://t.co/mOHBC2r43C@Sneffleupagus pic.twitter.com/pj1LOpQQ67

— Fawn Nguyen (@fawnpnguyen) April 18, 2026

Radicals can be tricky so it's always good to see other approaches
Curriculum Tags: MPM2D, MCR3U, MCF3M
https://karendcampe.wordpress.com/2026/04/22/really-radical/

New blog post! "Really Radical" talks about how to handle teaching a tough topic in #algebra2 so students aren't lost in the weeds. #iTeachMath #MTBoS #T3Learns https://t.co/Qqso24wkwJ

— Karen Campe (@KarenCampe) April 23, 2026

Video Links

I can't get enough probability questions
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2047435455516549402

The probability of finding a Pikachu in Viridian Forest is 5% so you just need 20 encounters to ensure finding a Pikachu, right? Math doesn't work out like that. Let's do the math to find the probability of encountering at least one Pikachu in 20 encounters. pic.twitter.com/iQSQCP5CyS

— Howie Hua (@howie_hua) April 23, 2026

Image Links

A nice area related question
Curriculum Tags: MTH1W
https://bsky.app/profile/stevemaths.bsky.social/post/3mkadudzuk22w

Here is the first #OCRMathsPuzzle of the summer term. Diagram shows a square ABCD with quarter circles drawn with centres at A and B, radius equal to the side length. What percentage of the square has been covered by the quarter circles? #UKMathsChat #MathsToday @cambridgeocr.bsky.social

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— Steve Walker (@stevemaths.bsky.social) April 24, 2026 at 6:44 AM

Math Links for Week Ending Apr 3, 2026

Featured Links

I love this visual
Curriculum Tags: MCV4U
https://x.com/howie_hua/status/2038341287603282340

You can do this calculus problem with just any random book 😱 pic.twitter.com/LGndHMlJ81

— Howie Hua (@howie_hua) March 29, 2026

Resource Links

You can never have enough sources of resources
Curriculum Tags: All
https://www.resourceaholic.com/2026/04/5-maths-gems-197.html

New! My 197th gems post. Ideas, updates and resources for maths teachers. 💎 www.resourceaholic.com/2026/04/5-ma... #ukmathschat #mathstoday #alevelmaths

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— Jo Morgan (@mathsjem.bsky.social) April 3, 2026 at 6:40 AM

The latest classic NCTM calendar
Curriculum Tags: All
https://karendcampe.wordpress.com/2026/04/01/april-calendar-problems-4/

The April #ProblemSolving Calendar is posted & that's no fooling!!
Plus March solutions as well.
Share your working out & thoughts here or on the post. #iTeachMath #MTBoS #MathsToday#RecreationalMath #MathChathttps://t.co/yAZPMe109h

— Karen Campe (@KarenCampe) April 2, 2026

 

Video Links

People complain that things are worse now. The data says otherwise
Curriculum Tags: MDM4U
https://x.com/toddrjones/status/2039771217553461667

Here are some ways in which the world has gotten better. pic.twitter.com/v1Py5NtQ7L

— Todd Jones 🦊 (@toddrjones) April 2, 2026

Fibonacci to the party
Curriculum Tags: All
https://x.com/howie_hua/status/2039721193918648801

Let's learn about the golden ratio pic.twitter.com/iMnoH4d8Qd

— Howie Hua (@howie_hua) April 2, 2026

Image Links

Very nice prompt
Curriculum Tags: Gr7, Gr8, MTH1W
https://bsky.app/profile/mathsvault.bsky.social/post/3milwnnonl52w

Discuss — Factors of a number #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #MathsDiscussion #TalkTasks #FactorsOfANumber

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— Jon @ The Maths Vault (@mathsvault.bsky.social) April 3, 2026 at 10:30 AM

Another nice prompt
Curriculum Tags: Gr7, Gr8, MTH1W
https://bsky.app/profile/tilefarmer.bsky.social/post/3mikm2thrvk26

#ElemMathChat Q7 “Last Tile Standing” is another one of my favorites (for Tile Farm’s version go to tiletalk.tilefarm.com). I’ve chosen one of the 24 patterns above, can you think of yes/no questions that could help eliminate options? Ask and I’ll answer yes/no. Can comment below if easier.

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— Alex Romero (@tilefarmer.bsky.social) April 2, 2026 at 9:48 PM

Math Links for Week Ending Mar 27th, 2026

Featured Links

A weekly prompt? I like the idea of the cross curricular math activity
Curriculum Tags: All
https://denisegaskins.com/2026/03/26/thinking-thursday-leo-tolstoy/

Thinking Thursday: Leo Tolstoy Try this week's math journaling prompt with your kids! #homeschooling #mathjournal #letsplaymath #mtbos #iteachmath

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— Denise Gaskins (@denisegaskins.com) March 26, 2026 at 9:01 AM

Resource Links

Check out all the Tape diagrams
Curriculum Tags: All
http://bit.ly/TapeDiagramTuesday

It's time for #TapeDiagramTuesday!Here's what to do: 1. Pick a problem. 2. Solve it using a tape diagram to model your thinking. - - - - OR - - - - Give the problem to your students to model. 3. Share your model with #TapeDiagramTuesday #iTeachMath

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— Duane Habecker (@duanehabecker.com) March 24, 2026 at 8:00 AM

Video Links

Nice geometric video
Curriculum Tags: All
https://bsky.app/profile/maria-naturalmath.bsky.social/post/3mhv2cwtef22x

So pleasing to watch! #iTeachMath

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— Maria D. at Natural Math (@maria-naturalmath.bsky.social) March 25, 2026 at 8:04 AM

You just have to keep it slow and think logically
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2036907773926269435

Let's learn about conditional probability pic.twitter.com/KfupYfT7HV

— Howie Hua (@howie_hua) March 25, 2026

Love the Monty Hall Problem
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2037257191930130688

Let's understand the Monty Hall problem pic.twitter.com/dFlv8gd2uZ

— Howie Hua (@howie_hua) March 26, 2026

Image Links

Pattern Block Fun
Curriculum Tags: All
https://bsky.app/profile/murrayh83.bsky.social/post/3mhvofspfx22e

Pattern block play! #21CenturyPB #iTeachMath

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— Hana Murray (@murrayh83.bsky.social) March 25, 2026 at 2:04 PM

Math Links for Week Ending Mar 13, 2026

Featured Links

My yearly time to point to my Pi Pinterest page
Curriculum Tags: All
https://www.pinterest.com/davidpetro314/pi-day/

Resource Links

And I always like seeing other people's Pi Day pages
Curriculum Tags: All
https://www.transum.org/Software/SW/Starter_of_the_day/starter_March14.asp

Tomorrow is #PiDay, the perfect excuse to celebrate the most famous number in Maths! If you're looking for a quick classroom starter, puzzle or activity for 14 March, take a look at my Pi Day page: www.transum.org/Intro/Starte... #Maths #MathChat #Teachers #PiDay2026

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— transum.bsky.social (@transum.bsky.social) March 12, 2026 at 11:29 PM

Video Links

For combinatorics, it's important to break the problems down in to logical steps. 
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2031884126807343574

How many ways can we split 12 color guard members so we have 4 rifles, 4 sabres, and 4 flags? pic.twitter.com/DrBiauVW2t

— Howie Hua (@howie_hua) March 12, 2026

You can always count on @standupmaths to give us something interesting about Pi but this is not actually this year's attempt
Curriculum Tags: All
https://www.youtube.com/watch?v=IY0pf0-Daew

This is this year's attempt at a weird way to determine the ways to find Pi
Curriculum Tags: MDM4U

https://youtu.be/kahGSss6SsU?si=ESccNHD-WvPtu7rN

Thank you Archemedes
Curriculum Tags: All

https://x.com/howie_hua/status/2032789235678457930

Happy pi day! Here's how Archimedes approximated the value of pi and how many digits of pi we actually need. pic.twitter.com/RCBSAhhuwv

— Howie Hua (@howie_hua) March 14, 2026

Image Links

Dad joke/Math Joke alert
Curriculum Tags: All
https://x.com/miniapeur/status/2032285090735112619

pic.twitter.com/hrMDEFaL05

— Mathieu (@miniapeur) March 13, 2026

Math Links for Week Ending Feb 27, 2026

Featured Links

Even though for most curriculum we don't care about the surface area of a toroid, it could be easily worked in with this context. 
Curriculum Tags: MTH1W
https://youtu.be/CYjD9cpxT18?si=DQvqTExD8SLtzwCM

Resource Links

Open middle is a great structure to have kids think deeply. Here's one about perpendicular lines
Curriculum Links: MTH1W
https://www.openmiddle.com/perpendicular-lines-through-a-given-point/

If your students are learning about perpendicular lines, try out this Open Middle problem from Andy Schwen with them: www.openmiddle.com/perpendi...

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— Robert Kaplinsky (@robertkaplinsky.com) February 27, 2026 at 6:43 PM

I'm always happy to share summary posts like this one
Curriculum Tags: All
https://www.resourceaholic.com/2026/02/5-maths-gems-196.html 

New! My 196th gems post. Ideas, updates and resources for maths teachers.https://t.co/FgEC1lfnOY#mathsgems #mathschat #teammaths #mathscpdchat #mathstlp pic.twitter.com/lWClAxRpik

— Jo Morgan (@mathsjem) February 17, 2026

Video Links

As always, I like the fact that the reason why is explained
Curriculum Tags: MCR3U, MCF3M
https://x.com/howie_hua/status/2027134778953409006

One of the biggest "tricks" in algebra is "slide and divide." I honestly didn't understand why it worked until around 20 years after algebra class. Here's why it works. pic.twitter.com/eRyOqFhwbj

— Howie Hua (@howie_hua) February 26, 2026

Visualizing factoring 
Curriculum Tags: MTH1W
https://x.com/howie_hua/status/2025303867903369621 

I wish I was taught this way of finding the greatest common factor when I was in school pic.twitter.com/7N87KSYsoB

— Howie Hua (@howie_hua) February 21, 2026

I always liked showing the connection between permutations and combinations
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2026390576086884641

The permutation and combination formulas don't just have to be formulas to memorize. Here's how we can derive them. pic.twitter.com/i2vjZwH94b

— Howie Hua (@howie_hua) February 24, 2026

Image Links

This would be a good discussion in class
Curriculum Tags: MTH1W
https://bsky.app/profile/mathspadnicola.bsky.social/post/3mfu655uwek2i

#mathstoday

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— Nicola Waddilove (@mathspadnicola.bsky.social) February 27, 2026 at 11:49 AM

Math Links for Week Ending Feb 13th, 2026

Featured Links

Some Valentines Day fun for math class
Curriculum Tags: All
https://colleenyoung.org/2026/02/08/for-valentines-day-2026/

Valentine's cards for mathsy friends?! colleenyoung.org/2026/02/08/f...

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— Colleen Young (@colleenyoung.bsky.social) February 13, 2026 at 12:53 PM

Resource Links

Keep those classic calendar links coming
Curriculum Tags: All
https://karendcampe.wordpress.com/2026/02/01/february-calendar-problems-4/

It's a SUPER day for #ProblemSolving Sunday!
Check out the February Calendar of Problems... which ones did you like from this past week?
Share your thinking & working out here or on the post.#MTBoS #iTeachMath #T3Learns #RecreationalMath https://t.co/th7fNLR4JV

— Karen Campe (@KarenCampe) February 8, 2026

Logic is defnintly a mathematical skill
Curriculum Tags: All
https://alicekeeler.com/2019/05/30/google-sheets-play-connect-four/

I created a Google Sheets template to play Connect Four. It allows you to create quiz cards and students earn their next move by answering the question. Google Sheets: Play Connect 4 alicekeeler.com/2019/05/30/g... #GoogleEDU #GoogleSheets #Gamification #EduSky

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— Alice Keeler (@alicekeeler.com) February 13, 2026 at 6:01 PM

Video Links

I love a good discussion about approximating mathematical quantities.
Curriculum Tags: MTH1W
https://bsky.app/profile/howiehua.bsky.social/post/3memfuxu4222q

How to visually approximate square roots

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— Howie Hua (@howiehua.bsky.social) February 11, 2026 at 4:21 PM

Image Links

I love this idea. So simple and low tech
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U
https://bsky.app/profile/johngolden.bsky.social/post/3meovduibs32a

#mathstoday started with one of my favorite early probability activities. Students write events on stickies for almost never to almost always and another group tries to sort them. Lots of discussion about wording and googling for more info.

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— John Golden (@johngolden.bsky.social) February 12, 2026 at 4:03 PM