Math Links for Week Ending Sept 19th, 2025

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I always like to highlight other compilations of resources 
Curriculum Tags: All
https://www.resourceaholic.com/2025/09/5-maths-gems-192.html

New! My 192nd gems post. Ideas, updates and resources for maths teachers. 💎https://t.co/tY0izsANzd

Hat tips will follow on Bluesky.#mathsgems #mathschat #teammaths #mathscpdchat #mathstlp pic.twitter.com/PraThyu47s

— Jo Morgan (@mathsjem) September 13, 2025

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I'm all for tricking students into learning :-)
Curriculum Tags: All
https://www.edutopia.org/article/14-exceptionally-fun-math-games-for-middle-and-high-school

Your middle and high school students might actually forget they’re learning. These rigorous math games get students thinking deeply about mathematical concepts—and loving every minute of it! 🎉 #MathSky #ITeachMath #EduSky

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— Edutopia (@edutopia.org) September 18, 2025 at 6:14 AM

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Anytime you can visualize something that is abstract then it's a good thing.
Curriculum Tags: MHF4U
https://x.com/howie_hua/status/1969156757969646077

Drawing can help make polynomial division easier! pic.twitter.com/daopCIM8wb

— Howie Hua (@howie_hua) September 19, 2025

This would be a good prompt for a discussion on number sense
Curriculum Tags: MTH1W
https://x.com/howie_hua/status/1968814676700959175

Applying the divisibility rule of 9 feels like a superpower pic.twitter.com/dA8nNlqMLy

— Howie Hua (@howie_hua) September 18, 2025

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I love the imbedded rectangles
Curriculum Tags: All
https://bsky.app/profile/murrayh83.bsky.social/post/3lz4y5znjnc2q

Pattern block play! #21CenturyPB #iTeachMath

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— Hana Murray (@murrayh83.bsky.social) September 18, 2025 at 2:29 PM

Math Links for Week Ending Sept 12, 2025

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This is a super fun prompt. My first saved graph was from May 2, 2012
Curriculum Tags: All

https://bsky.app/profile/mrcorleymath.bsky.social/post/3lyks7kcmek2a

This could be fun! Inspired by Jed's post, find your OLDEST saved graph in @desmos.com and share it! #mtbos #iteachmath

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— Nick Corley (@mrcorleymath.bsky.social) September 11, 2025 at 8:54 AM

Resource Links

I never say no to new stats resources
Curriculum Tags: MDM4U
https://mathsweek.scot/schools/learning-resources/stats-in-the-wild

We would love to hear your thoughts on our new set of maths teaching resources, developed in partnership with @mathsweek.scot Please share widely! #ITeachMaths #ITeachMath #MTBoS @scotstemambassador.bsky.social @royalstatsoc.bsky.social

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— Darren Macey (@darrenmacey.bsky.social) September 11, 2025 at 2:37 PM

I like to use the word "tinker" but @NatBanting talks about the nature of playing with a problem
Curriculum Tags: All

https://natbanting.com/play-with-your-problems/

I wrote a new post yesterday: natbanting.com/play-with-yo... It’s about the benefits of teachers tinkering with the problems/prompts we offer students. (And, tangentially, about the benefits of conference spaces where we are given license to do so) #iteachmath

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— Nat Banting (@natbanting.bsky.social) September 11, 2025 at 8:22 AM

Video Links

A nice strategy for comparing fractions
Curriculum Tags: Gr7, Gr8, MTH1W
https://x.com/howie_hua/status/1965934153943363706

Fraction comparison strategy: Same parts away from the whole pic.twitter.com/747SUsx9Tw

— Howie Hua (@howie_hua) September 11, 2025

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Fun with tiling
Curriculum Tags: All
https://bsky.app/profile/maria-naturalmath.bsky.social/post/3lxkzkilwmk2y

Organic-looking curves made out of simple polygons? My jam! #iTeachMath #MathSky

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— Maria D. at Natural Math (@maria-naturalmath.bsky.social) August 29, 2025 at 5:41 PM

Math Links for Week Ending Sept. 5th, 2025

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We are starting our 8th season of OAMEtalks. Webinars for our OAME members but the first one is always free. That's Jamie Mitchell talking about Hacking Assessment with AI. Register now for the webinar on Sept 10th and listen to the podcast preview now. 
Curriculum Tags: All
https://talks.oame.on.ca/season-8

Season 8 of @OAMEcounts OAMEtalks is live at https://t.co/0Tk5NbHctV

This season has speakers from #OAME2025https://t.co/FNER2hKfFF featuring@realJ_Mitchell Chad Harris @TheMathGuru @mrsstaceyj @CharalSonya @rosemortillaro @MsNicolePeckham #MathChat #MTBoS #iTeachMath pic.twitter.com/atSH5vD3u8

— OAMEtalks (@OAMEtalks) September 1, 2025

[New Podcast] This episode features @realJ_Mitchell
previewing their Sept 10th @OAMEcounts free webinar "Hacking Assessment in the AI Age". More info:https://t.co/FNER2hKfFF #mathchat #MTBoS #iTeachMath pic.twitter.com/bXXRMjSysU

— OAMEtalks (@OAMEtalks) September 3, 2025

Resource Links

@MathyCathy gives us some sobering thoughts and advice about the recent change from Desmos to Amplify 
Curriculum Tags: All
https://www.mathycathy.com/blog/2025/08/amplify-classroom-%E2%89%A0-desmos-classroom/

Are you a teacher planning to use @Amplify Classroom with students during SY 25-26?
Here's some advice to consider! #iteachmath
Amplify Classroom ≠ Desmos Classroom https://t.co/ApMoYxHcNv

— Cathy Yenca (@mathycathy) August 16, 2025

Video Links

This makes the dividing algorithm make sense 
Curriculum Tags: All
https://x.com/howie_hua/status/1963011782483787947

How do we do this "new" way of dividing? pic.twitter.com/wGsv6Fg0O1

— Howie Hua (@howie_hua) September 2, 2025

I never shy away a visual for multiplication
Curriculum Tags: Gr7
https://x.com/howie_hua/status/1962184847277068773

If you want to be better with multiplication, think about rectangles. Here's what I mean: pic.twitter.com/ubpmQt6Hql

— Howie Hua (@howie_hua) August 31, 2025

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A nice simple relationship that seems too good to be true
Curriculum Tags: Gr7, Gr8
https://x.com/abakcus/status/1963704620162920862

Three squares on the left, two on the right.
Perfect balance. ⚖️

10² + 11² + 12² = 13² + 14² pic.twitter.com/fHktRDbdPF

— Abakcus (@abakcus) September 4, 2025

Math Links for Week Ending Aug 29, 2025

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Some resources for teachers in the GTA but this list is useful for any teacher
Curriculum Tags; All
https://bsky.app/profile/calarmstrong.bsky.social/post/3lxf6z4dxbc2v
https://bsky.app/profile/calarmstrong.bsky.social/post/3lxf5whojwc2v

"Teacher as artisan" @ "Count Me In" from @UofTMath #onted #mtbos HT @OAMElearns #mathed

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— Cal Armstrong (@calarmstrong.bsky.social) August 27, 2025 at 10:02 AM

#onted #mtbos folks Lots of options for outreach from @UofT Math Dept. Check out ways for you and your students to grow! HT @OAMElearns #mathed

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— Cal Armstrong (@calarmstrong.bsky.social) August 27, 2025 at 9:43 AM

Resource Links

Having students actually write about topics in math class can be useful
Curriculum Tags: All
https://www.edutopia.org/article/short-writing-task-elementary-math

Check out 3 focused writing activities that can help students build confidence in their math skills *and* bond with their classmates! 👀 #MathSky #ITeachMath #ElementaryTeacher #EduSky

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— Edutopia (@edutopia.org) August 29, 2025 at 7:37 AM

Video Links

Mathematical dates are always fun
Curriculum Tags: Gr8, MTH1W, MFM2P, MPM2D
https://x.com/howie_hua/status/1960814706639454458

We are a month away from one of the coolest mathematical dates of our lifetime! pic.twitter.com/HEGHBwGomC

— Howie Hua (@howie_hua) August 27, 2025

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Every math teacher needs this cup
Curriculum Tags: All
https://bsky.app/profile/lindsaykittens.bsky.social/post/3lx3tku6nes2z

I’m making the change from primary teaching to secondary maths. Any recommendations of maths teachers to follow would be welcome. Thank you. #maths #newdirection

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— Lindsay Kittens (@lindsaykittens.bsky.social) August 23, 2025 at 4:44 PM

Math Links for Week Ending Aug 22, 2025

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I like problems like this because they seem very complex (or at least using brute force might be difficult) but with they can be solved with elegant simplification.
Curriculum Tags: MDM4U
https://x.com/pickover/status/1957992246025810135

Mathematics, Factorials, Mystery. pic.twitter.com/V9NFhPjDTD

— Cliff Pickover (@pickover) August 20, 2025

Resource Links

I love the connection of something folksy and something new
Curriculum Tags: All
https://samjshah.com/2025/08/19/embroidering-an-aperiodic-tiling/

ACK! Another #MathArt post! I'm on a roll. Mainly because I'm trying to distract myself from the reality that school is starting up soon for me. Here's my embroidered aperiodic tiling. samjshah.com/2025/08/19/e... Instructions from: www.threadedtheorems.com/aperiodic-ti... #MTBoS

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— samjshah.bsky.social (@samjshah.bsky.social) August 18, 2025 at 9:23 PM

Video Links

This could be a good math starter
Curriculum Tags: All
https://bsky.app/profile/howiehua.bsky.social/post/3lwjl5yogrk25

A fun math magic trick and why it works:

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— Howie Hua (@howiehua.bsky.social) August 16, 2025 at 10:25 AM

Image Links

Finally an answer to the question "where will we need this?"
Curriculum Tags: MTH1W
https://bsky.app/profile/curiouspolymath.bsky.social/post/3lww77gtiis24

#mathsky

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— Pete Wung The Curious Polymath (@curiouspolymath.bsky.social) August 21, 2025 at 10:56 AM

I also wonder where they came up with those numbers. Looks like a graphing activity if you ask me. Linear regression to the rescue.
Curriculum Tags: MTH1W, MDM4U, MAP4C
https://x.com/bobloch/status/1958339726085427516

As a math teacher, I'm intrigued by the pricing model for 50/50 tickets by the @Twins #iteachmath pic.twitter.com/8VntHj8CJf

— Bob Lochel (@bobloch) August 21, 2025

Math Links for Week Ending Aug. 15th, 2025

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I don't know how important it is to determine this. However, these seem like good criteria
Curriculum Tags: All
https://www.edutopia.org/article/being-good-math-elementary-students

“Our students bring a wide range of skills to the classroom. That’s why we need to create spaces where every learner is seen as a capable mathematician.” ➗✨ #MathSky #ITeachMath #ElementaryTeacher

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— Edutopia (@edutopia.org) August 14, 2025 at 8:12 AM

Resource Links

This could be the job of some dynamic geometry software or a nice coding project
Curriculum Tags: MTH1W
https://x.com/jamestanton/status/1955897428923548026

For each point inside a 3-4-5 right triangle, measure the three distances a, b, c shown and compute the sum a+b+c.
For which point is this sum largest?
For which point smallest?
Describe the locus of points with a+b+c=3. pic.twitter.com/KTgNkCu7Tw

— James Tanton (@jamestanton) August 14, 2025

Video Links

Some dynamic geometric math art
Curriculum Tags: All
https://x.com/jcponcemath/status/1956221664401973433

:) #mathart pic.twitter.com/NT6xknHbSU

— ∞ 𝕁uan ℂarlos (@jcponcemath) August 15, 2025

Algebra to the rescue (when it comes to explaining math tricks
Curriculum Tags: MTH1W
https://x.com/howie_hua/status/1955301058286326255

If we subtract all the digits from any number, we will always get a multiple of 9. Let's see why! pic.twitter.com/O1kujPyjrf

— Howie Hua (@howie_hua) August 12, 2025

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This might capture the attention of a certain type of kid
Curriculum Tags: All
https://bsky.app/profile/curiouspolymath.bsky.social/post/3lwgxsbw5as27

#mathsky

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— Pete Wung The Curious Polymath (@curiouspolymath.bsky.social) August 15, 2025 at 9:33 AM

A good math starter
Curriculum Tags: All
https://bsky.app/profile/howiehua.bsky.social/post/3lwf6vygwec2g

I saw this math question on Who Wants To Be a Millionaire. Would you win $125,000? What would your strategy be?

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— Howie Hua (@howiehua.bsky.social) August 14, 2025 at 4:35 PM

A good example of the effects of an outlier
Curriculum Tags: MDM4U
https://bsky.app/profile/mathowitz.bsky.social/post/3lwbvmxmvqs2o

A great example of how easily numbers can be manipulated to make a point. The average run differential in the NL West is -40. 4 out of 5 teams have a positive run differential. The power of an outlier. #mtbos

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— Carl (@mathowitz.bsky.social) August 13, 2025 at 9:11 AM

Who doesn't like a good set of foodie data
Curriculum Tags: MDM4U
https://x.com/infobeautiful/status/1956006027297435880

World's favourite cuisines. 25,000 people in 24 countries were asked which nation's food they preferred. Interesting results 🍕 via @yougov pic.twitter.com/qNobI5xFic

— Information is Beautiful (@infobeautiful) August 14, 2025

Math Links for Week Ending Aug 8th, 2025

Featured Links

I continue to be greatful when teachers add resources to the world on the regular. Whether they be new or retro
Curriculum Tags: All
https://karendcampe.wordpress.com/2025/08/01/august-calendar-problems-2/
https://www.resourceaholic.com/2025/08/5-maths-gems-191.html

August is here and so is the Calendar of Problems!
Back to school is soon (or now) so do some #ProblemSolving yourself or w/students.
Share your thinking here or on the post. #iTeachMath #MTBoS #T3Learnshttps://t.co/RFcpfNeq70

— Karen Campe (@KarenCampe) August 2, 2025

New! My 191st gems post. Ideas, resources and updates for maths teachers. 💎 www.resourceaholic.com/2025/08/5-ma... Hat tips to follow. #mathstoday #ukmathschat

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— Jo Morgan (@mathsjem.bsky.social) August 6, 2025 at 1:43 PM

Resource Links

There is more than just Slow Reveal Graphs on @JennaLaib's site. Check out this post 
Curriculum Tags: All
https://slowrevealgraphs.com/2025/08/02/blog-digging-into-data-sources/

New #SlowRevealGraph Blog Post:
Digging Into Data Sources
A few years ago, I started citing not just the source of the graph, but the source of the data behind it. I explain why that's important, and how it can change our interpretation.https://t.co/tRtMlmTxu5

— Jenna Laib (@jennalaib) August 2, 2025

This could be handy when talking about types of numbes 
Curriculum Tags: MTH1W
https://mathequalslove.net/prime-numbers-chart-1-3000/

Prime Numbers Chart 1-3000 mathequalslove.net/prime-number... #mtbos #iteachmath #mathsky #edusky

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— Sarah Carter (@mathequalslove.bsky.social) August 6, 2025 at 6:18 PM

Creating a culture of learning in our classes is so important
Curriculum Tags: All
https://www.edutopia.org/article/students-experts-math-class

Excited to share my recent article published on @edutopia.org! It doesn't take much to start to shift practice towards a more shared culture of teaching and learning in our math classrooms. #MTBOS #elemmathchat #iteachmath #edusky #mathsky www.edutopia.org/article/stud...

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— Louisa Connaughton (@lpconnaughton.bsky.social) August 5, 2025 at 2:43 PM

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I'm sure I'm not the only one for whom this resonates
Curriculum Tags:All
https://www.youtube.com/watch?v=gpy-Yut8Jw4

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Make sure that when you ask questions, you are clear what you are asking :-)
Curriculum Tags: All
https://x.com/mathladyhazel/status/1948472769177681964

The best math joke about π. 😂 pic.twitter.com/S1hQptcXhp

— Math Lady Hazel 🇦🇷 (@mathladyhazel) July 24, 2025