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 Mar 6th, 2026

Featured Links

Our last episode of the season is where we ask all of the guests the same question and hear their response. This year we asked "What advice would you give a new teacher who is struggling to engage their math students?" Here are the results
Curriculum Tags: All
https://talks.oame.on.ca/season-8

[New Podcast] This is our last episode of the season where we asked all of our guests advice about engaging students. Featuring @realjmitchell.bsky.social @pwharris.bsky.social @cluzniak.bsky.social @themathguru.bsky.social &more Listen here: talks.oame.on.ca/season-8 #MathChat #MTBoS #iTeachMath

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— DavidPetro314 (@davidpetro314.bsky.social) March 3, 2026 at 8:45 PM

Resource Links

@KarenCampe continues to post classic NCTM calendar problems and I appreciate it
Curriculum Tags: All
https://karendcampe.wordpress.com/2026/03/01/march-calendar-problems-4/

The March Calendar of Problems is here! Enjoy some #ProblemSolving yourself or with students. Let us know your thoughts & working-out here or on post. #MTBoS #iTeachMath #T3Learns #RecreationalMath #MathChathttps://t.co/gfAsr8hdI7

— Karen Campe (@KarenCampe) March 1, 2026

Video Links

The area model to the rescue
Curriculum Tags: MPM2D, MCR3U, MCF3M, MBF3C
https://x.com/howie_hua/status/2030035682937405728

Let's learn how to factor by grouping and why it works pic.twitter.com/2BTLwRYsPY

— Howie Hua (@howie_hua) March 6, 2026

I'm thinking there is a sequence and/or series (or maybe a linear relations) question lurking in this video 
Curriculum Tags: MTH1W, MCR3U
https://x.com/davidpetro314/status/2030063900247433472

What #math problem could you ask about this video?#MathChat #MTBoS #iTeachMath https://t.co/k9wjXIOgSz

— David Petro (@davidpetro314) March 6, 2026

Image Links

Who doesn't like geometric art
Curriculum Tags: All
https://bsky.app/profile/veganjackson.bsky.social/post/3mgdsh6lt6v2i

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 20th, 2026

Featured Links

This is an old video but still pretty cool
Curriculum Tags:All
https://www.youtube.com/watch?v=pg1NpMmPv48

#Mathsky youtube.com/watch?v=pg1N...

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— Pete Wung The Curious Polymath (@curiouspolymath.bsky.social) February 20, 2026 at 8:06 PM

Resource Links

I have always liked the idea of warmup questions. Something for kids to do as soon as they step in the door. Nothing too crazy, maybe with different levels of difficulty. And even though these examples are for Calculus, the idea is universal.
Curriculum Tags: MCV4U
https://bsky.app/profile/theericklee.bsky.social/post/3mfcymi3r3c2r

A few warm-up questions from this week in my high school Calculus class. I start each day with a question. Sometimes for review/retrieval, sometimes to launch the day's discussion and sometimes for practice/consolidation. #ITeachMath #MathsToday

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— Erick Lee (@theericklee.bsky.social) February 20, 2026 at 3:55 PM

Video Links

Both models are correct and necessary
Curriculum Tags: Gr7, Gr8
https://x.com/howie_hua/status/2024891678977655292

I know a lot of people think about 3 ÷ 1/2 as "how many 1/2 fit into 3?" but there is another model!

Here are two ways we can think about division. pic.twitter.com/k5WbJI0Wtv

— Howie Hua (@howie_hua) February 20, 2026

Image Links

Asking for questions is a good way to get more students involved. Especially for students that struggle and for students that excel, you can give them a specific topic. 
Curriculum Tags: All
https://bsky.app/profile/teacher2teacher.bsky.social/post/3mew3e35zia27

A change in perspective can make all the difference! T Kathy Minas (themathcollective on IG) mixes it up by giving the answer first – and asking learners for the question: www.instagram.com/p/DO1o9bSEmr9/ #MTBoS

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— Teacher2Teacher (@teacher2teacher.bsky.social) February 15, 2026 at 12:40 PM

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

Math Links for Week Ending Feb 6th, 2026

Featured Links

We've just released the three preview episodes to hear the featured and keynote speakers from the upcoming OAME 20256 conference. More info and registration info at the link below
Curriculum Tags: All
https://talks.oame.on.ca/season-8

[New Podcast] It's the @OAMEcounts #OAME2026 Day 1 preview. Featuring @pwharris Alex Lawson and @CathyMarksKrpan Listen here: https://t.co/FNER2hKfFF

Check out all the conference info at https://t.co/SrSBmfTk9y #MathChat #MTBoS #iTeachMath pic.twitter.com/kzSOCmvb8t

— OAMEtalks (@OAMEtalks) February 1, 2026

[New Podcast] It's the @OAMEcounts #OAME2026 preview #2. Featuring @howie_hua and Ron Lancaster. Listen here:https://t.co/FNER2hKfFF

Check out all the conference info at https://t.co/vuqJngqBgK #MathChat #MTBoS #iTeachMath pic.twitter.com/FwnkSaWcSp

— OAMEtalks (@OAMEtalks) February 2, 2026

[New Podcast] It's the @OAMEcounts #OAME2026 Day 2 preview. Featuring Dr. Pamela Seda @cluzniak @MarianSmall & Ian VanderBurgh. Listen here:https://t.co/FNER2hKNvd

Check out all the conference info at https://t.co/vuqJngr96i#MathChat #MTBoS #iTeachMath pic.twitter.com/bxqei1uEyN

— OAMEtalks (@OAMEtalks) February 3, 2026

Resource Links

It seems crazy that someone would complain about this
Curriculum Tags: All
https://www.nature.com/articles/d41586-026-00254-z

No joke: I got angry hate mail today for writing an obituary of a Black woman scientist—because the person felt she did didn’t deserve the recognition. Which just makes me want to share it again: www.nature.com/articles/d41...

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— jennifer uncoolidge (@histoftech.bsky.social) February 6, 2026 at 4:09 AM

I think embracing mistakes is absolutely necessary in math class
Curriculum Tags: All
https://www.edutopia.org/article/five-math-procedures-to-help-students-learn-from-their-mistakes

In math, learning from mistakes can help students solidify a formula, drive home a complex concept, or prepare them for future assessments. But this will only happen if students learn to value mistakes. Here is one strategy math teacher Emma Chiappetta uses to help students embrace errors. 🧵 1/6

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— Edutopia (@edutopia.org) February 5, 2026 at 8:28 PM

Video Links

I like the idea of reasoning through this type of problem
Curriculum Tags: MTH1W
https://x.com/howie_hua/status/2018000063772180590

Without calculating, is 15.99/3.99 greater than 4, less than 4, or equal to 4? pic.twitter.com/g1F7yAr5c5

— Howie Hua (@howie_hua) February 1, 2026

I'm a sucker for a good Fibonacci connection
Curriculum Tags: All
https://x.com/howie_hua/status/2019158684602102073

Here's a cool math fact: If we can go up a set of stairs at one or two steps at a time, the number of different ways we can go up those stairs will always be a Fibonacci number! Here's why: pic.twitter.com/yE4LlFtpFR

— Howie Hua (@howie_hua) February 4, 2026

Geometric Art
Curriculum Tags: All

https://x.com/Aartworlld/status/2017919292092957117

pic.twitter.com/IwMDqoWUe3

— Art world (@Aartworlld) February 1, 2026

Image Links

I love the tessolatability of this shape
Curriculum Tags: All
https://bsky.app/profile/murrayh83.bsky.social/post/3me7la7aw3c2h

Pattern block play! #21CenturyPB #iTeachMath

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— Hana Murray (@murrayh83.bsky.social) February 6, 2026 at 1:53 PM

Math Links for Week Ending Jan 30th, 2026

Featured Links

I have known about this software for more than a decade and was just reminded of it. I love it for doing some real projectile motion analysis in your classes. Start throwing stuff around and doing some math (and physics)
Curriculum Tags: MCR3U, MCF3M
https://opensourcephysics.github.io/tracker-website/

Free open source software, Tracker, that lets you upload videos of moving objects & easily move frame by frame to mark the object's motion. Perfect for both #physics and #math class https://t.co/30KvoyCfgi#MathChat #MTBoS #iTeachMath #ProjectileMotionhttps://t.co/pIfvF2rsxK

— David Petro (@davidpetro314) January 26, 2026

Resource Links

Increasing opportunities for risk taking is important in any class, but especially math class
Curriculum Tags: All
https://www.edutopia.org/article/helping-students-learn-try-math

By explicitly talking to students about what trying in the classroom means, you can help them build the independence and resilience they need to tackle problems within their lessons and beyond. 💫 #MathSky #ITeachMath #EduSky

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— Edutopia (@edutopia.org) January 28, 2026 at 11:17 AM

Video Links

This is a very cool property. And if you want a Desmos version, here you go.
Curricuulum Tags: MTH1W
https://x.com/pickover/status/2016872144248934727

Mathematics.

→ "Hidden secret in every triangle."

Credit: saroa_academy. I didn’t upload this video to 𝕏. I’m pointing to a video residing in the 𝕏 stream of “S.T.E.M Explorer”, 𝕏 ID “stemexplor” (Jan 28, 2026). pic.twitter.com/43MmOPZmbD

— Cliff Pickover (@pickover) January 29, 2026

I know about multiplying via rectangles so I guess in it makes sense you can divide using them
Curriculum Tags: All
https://x.com/howie_hua/status/2016970442125561964

Let's learn how to divide using rectangles pic.twitter.com/mJwKHumxbu

— Howie Hua (@howie_hua) January 29, 2026

Image Links

20th Century pattern blocks to the rescue
Curriculum Tags: All
https://bsky.app/profile/murrayh83.bsky.social/post/3mdnxm6uj5s2m

Looking back at the snowflake designs created in January! #21CenturyPB #PatternBlocks #CuisenaireRods #iTeachMath

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— Hana Murray (@murrayh83.bsky.social) January 30, 2026 at 1:46 PM