Math Links for Week Ending Mar. 21st, 2025

Featured Links

The season finale of Severance went live tonight. If you are a fan then you will like this @Desmos creation
Curriculum Tags: All
https://x.com/Desmos/status/1902737247717187868

Your outie makes art...in Desmos.#severance #lumon pic.twitter.com/qYeCbbp25w

— Desmos (@Desmos) March 20, 2025

Resource Links

It's always good to see some good demos of how to use dynamic geometry software. In this case you have some choice. 
Curriculum Tags: MTH1W
https://karendcampe.wordpress.com/2025/03/16/go-for-geometry-5/

New blog post! "Marvelous Midsegments" Go For Geometry! Episode 5.
Activities exploring on all technology platforms: Desmos, GeoGebra & TI calculators.
Taking the scenic route 😉#geometry #MTBoS #iTeachMath #T3Learnshttps://t.co/O2hFX9YiAl

— Karen Campe (@KarenCampe) March 17, 2025

Some new ways to show points with @Desmos
Curriculum Tags: All
https://x.com/Desmos/status/1902088563707277475

So...what's your point?

Customize your points and text labels with new shapes and outline settings. Check out an example graph here: https://t.co/zaJpjSsBOx#mtbos #iteachmath #desmostips pic.twitter.com/3X05h5oii7

— Desmos (@Desmos) March 18, 2025

Video Links

I also remember when I first made this connection. 
Curriculum Tags: MPM2D, MFM2P, MCR3U, MCF3M, MBF3C
https://x.com/howie_hua/status/1902521844273705127

In high school, I didn't realize completing the square LITERALLY means to complete the square. Here's what I mean: pic.twitter.com/Sq4lT5KIoN

— Howie Hua (@howie_hua) March 20, 2025

Making Logarithmic properties make sense.
Curriculum Tags: MHF4U

https://x.com/howie_hua/status/1902890459774783796

In high school, I just memorized these logarithm rules for products and quotients. If you're curious why they work, here's why: pic.twitter.com/VyrZXT91n8

— Howie Hua (@howie_hua) March 21, 2025

I have seen this in so many forms but I don't think I've seen this version
Curriculum Tags: MCR3U, MHF4U
https://x.com/mathladyhazel/status/1902562029245726971

When a math person dances. pic.twitter.com/U1uF6Svhf0

— Math Lady Hazel 🇦🇷 (@mathladyhazel) March 20, 2025

Image Links

This might be a good example of an outlier
Curriculum Tags: MDM4U
https://bsky.app/profile/infobeautiful.bsky.social/post/3lkoul42ba424

Math Links for Week Ending Mar 14th, 2025

Featured Links

It's Pi Day today and typically at this time I share my Pinterest collection of Pi Day links. So here they are and my favourite connection to Pi, the fact that it's hidden in the Rolling Stones Logo
Curriculum Tags: All
https://www.pinterest.com/davidpetro314/pi-day/

Resource Links

More Pi Day resources
Curriculum Tags: All
https://bsky.app/profile/mathsweek.scot/post/3lk3lxitajb2z

Some connections to Pi int the Library of Congress
Curriculum Tags: All
https://blogs.loc.gov/families/2025/03/pi-in-the-sky-on-earth-and-at-the-library-of-congress/

Pi Day activities, including those using Google Sheets
Curriculum Tags: All
https://www.controlaltachieve.com/2025/03/google-sheets-pi-day-projects.html

It's always good to talk about inclusion, not just in math class, but in all classes

Curriculum Tags: All
https://www.sdsu.edu/news/2025/02/breaking-down-systemic-barriers-to-mathematics-success

Empowering Students in math class
Curriculum Tags: All
https://news.fullerton.edu/2025/03/educator-empowers-students-to-become-the-math-teachers-they-needed/

Video Links

This year's @StandUpMaths Pi Day video (which includes @3Blue1Brown
Curriculum Tags: All
https://www.youtube.com/watch?v=vlUTlbZT4ig

Here is @3Blue1Brown's companion video 
Curriculum Tags: All
https://www.youtube.com/watch?v=6dTyOl1fmDo

And the original @3Blue1Brown video
Curriculum Tags: All
https://www.youtube.com/watch?v=HEfHFsfGXjs

A fun Pi Day coincidence
Curriculum Tags: All
https://x.com/howie_hua/status/1900616538090336645

Happy pi day! This one blew my mind when @aap03102 shared this. pic.twitter.com/Y1kVXdVZfV

— Howie Hua (@howie_hua) March 14, 2025

Here's a nice idea about using ordered lists in Desmos
Curriculum Tags: All
https://x.com/TimBrzezinski/status/1898361020512399383

Math teachers: One fun way to begin to get your students to THINK and WRITE more in math class is to have them create sentences using a @desmosclassroom ordered list. Quick 1:30 demo: https://t.co/EATbdrlAkp @Amplify @Desmos #MTBoS #ITeachMath pic.twitter.com/h7kOdIQuLW

— Tim Brzezinski (@TimBrzezinski) March 8, 2025

As always I like when he explains why the "trick" works
Curriculum Tags: All
https://x.com/howie_hua/status/1898725908057563296

The divisibility rule of 3 and why it works pic.twitter.com/rInc0MF6pJ

— Howie Hua (@howie_hua) March 9, 2025

A fun connection between these four numbers. Can you describe why this works? Are there other sets of four numbers that this will work for?
Curriculum Tags: MTH1W
https://x.com/MrJohnRowe/status/1900506929241182686

this is so cool.#iteachmath #mtbos #fractions #PiDay pic.twitter.com/pwltDTvFOv

— John Rowe 👨🏽‍🚀 (@MrJohnRowe) March 14, 2025

Thanks to @DianeDivine18 for this one for Pi Day
Curriculum Tags: All
https://www.youtube.com/watch?v=a6bT_DVwo7M

Image Links

A classic pizza connection to Pi
Curriculum Tags: Gr8
https://x.com/mathladyhazel/status/1900413955584966842

f you have a pizza with radius "z" and thickness "a", its volume is Pi(z•z)a. 😋 Happy Pi Day! pic.twitter.com/BhPKw8idxN

— Math Lady Hazel 🇦🇷 (@mathladyhazel) March 14, 2025

Math Links for Week Ending Mar 7th, 2025

Featured Links

It's not too late to join in to #mathartmarch
Curriculum Tags: All
https://bsky.app/profile/ayliean.bsky.social/post/3lje6cgmacs2u

Resource Links

More classic NCTM calendar problems
Curriculum Tags: All
https://x.com/KarenCampe/status/1896195830266343908

March Calendar of Problems is posted! Try some #ProblemSolving #RecreationalMath & share thoughts here or on the blog.

Plus BONUS content article: "Math Habits of Mind" Enjoy!
Consider subscribing so never miss a post. #MTBoS #iTeachMath #T3Learnshttps://t.co/H54l9omTrV

— Karen Campe (@KarenCampe) March 2, 2025

I like this post from @MrJohnRowe about focussing on when students "stall" when problem solving or when they don't even start. "We need to do a better job at helping students with “Problem Starting” and be less obsessed with “Problem Solving”. We undoubtedly need to do a better job at normalising not knowing".We were just talking about this at my school. The idea that sometimes when students can't see a way to start right away, it becomes debilitating. 
Curriculum Tags: All
https://mrrowe.com/2025/02/28/when-problem-solving-leads-to-problem-stalling/

✏️ N E W B L O G P O S T ✏️

when problem solving leads to problem stallinghttps://t.co/o9sVv6Sg62#iteachmath #mtbos #math

— John Rowe 👨🏽‍🚀 (@MrJohnRowe) February 28, 2025

Get the teacher links to these Pi related activities below. I really like how they have treated Buffon's needle. 
Curriculum Tags: All
https://teacher.desmos.com/collection/671913a5fa1590c94746a14e?collections=651ca31cf69ee59aa9e3818a%2C655cea587755229b6385da85%2C66717e66f7e8f835ea059449

🥧 Looking to add a slice of fun to Pi Day on 3/14?

Check out our monthly challenges, freshly baked for K–5, middle school, and high school!

Join thousands of students nationwide:
🔗 K–5: https://t.co/WUCYcGFZCI
🔗 MS: https://t.co/DgEsMVfgFn
🔗 HS: https://t.co/2PwFnhGHHk pic.twitter.com/IcrArmMJuV

— Desmos Classroom (@desmosclassroom) March 4, 2025

I love this use of student work that @ddmeyer uses. These are easily grababble using the Snapshot feature in Desmos Classroom
Curriculum Tags: All
https://danmeyer.substack.com/p/how-to-turn-kids-into-the-curriculum

Video Links

I'm not a big fan of math tricks but I always love how @howie_hua explains how they work. This might be something to do in a beginning algebra course. 
Curriculum Tags: MTH1W
https://x.com/howie_hua/status/1896296316705370194

Two divisibility rules of 7 and why they work pic.twitter.com/tdcoSUOY4G

— Howie Hua (@howie_hua) March 2, 2025

It was cool to see this early video of Stephen Wolfram talking about Mathematica
Curriculum Tags: All
https://www.youtube.com/watch?v=MeuCAT5HDh0

Image Links

This is fun if you are dealing with imaginary numbers.
Curriculum Tags: MHF4U
https://x.com/howie_hua/status/1897748058043302023

https://t.co/4iQZsioiVv pic.twitter.com/GfFSM4RiFH

— Howie Hua (@howie_hua) March 6, 2025

Another cool tessellation
Curriculum Tags: All

https://bsky.app/profile/tilefarmer.bsky.social/post/3ljdc7jcejs2j

Math Links for Week Ending Feb 28th, 2025

Featured Links

I have always liked row games as a way to have a more interactive worksheet. The idea is that you have two columns of questions and you pair students up. Each student chooses a column and does all the questions in that column. They check their answers by seeing if they get the same value for their questions that are in the same row (even though they are different questions). They take some time and planning to create so it's always great when someone makes one (or some). Here are some that I've made.
Curriculum Tags: Gr7, Gr8
https://docs.google.com/presentation/d/1AdT58PRUnooWER3s8MZyidCt2wYxeOVXQMvnBb8I1bg/edit#slide=id.p

Anyone want to test a Row Game for me? 🤞 I don't trust my eyes anymore to find errors! 😬 I am hoping solutions in each level of the table match, enough info is given, and directions make sense. Thanks!#iteachmath #HRCEmathhttps://t.co/F3dxzqNRPH pic.twitter.com/3mMrwGyMcO

— JoAnn Sandford HRCE Math (@joann_sandford) February 27, 2025

Resource Links

Volume of solids in this newsletter. Nicely done
Curriculum Tags: Gr7, Gr8
https://drive.google.com/file/d/1n9CZsGNYZy5N5aLPBBGS2ckujqus2ekB/view

Video/Audio Links

Year's ago we used to have a grade 12 math course where proofs were a fundamental part of the course. I loved that course. This would have been a good relationship for it. 
Curriculum Tags: All
https://x.com/TimBrzezinski/status/1895111023096389674

Triangle angle trisector surprise https://t.co/DVTyhk46L6 pic.twitter.com/6XMND6UGvB

— Tim Brzezinski (@TimBrzezinski) February 27, 2025

This would have been another great question for that proof course from the past. But now you could use it in our grade 9 course when you talk about properties of numbers.
Curriculum Tags: MTH1W
https://x.com/howie_hua/status/1894552333889286454

There are several ways to prove that sqrt(2) is irrational but this is my favorite way to explain it: pic.twitter.com/0uIrCRX4Bk

— Howie Hua (@howie_hua) February 26, 2025

What advice would you give your 1st year teacher self?

Curriculum Tags: All

https://talks.oame.on.ca/season-7

[New Podcast] This is our last episode of the season where we asked all of our guests "What advice would you give your 1st year teacher self?". Featuring @TheMathGuru @joboaler @NatBanting @LLB_315 @sig225 &more

Listen here: https://t.co/95KyYa01fu#MathChat #MTBoS #iTeachMath pic.twitter.com/1UNDNxCkY8

— OAMEtalks (@OAMEtalks) March 1, 2025

Image Links

I am always up for a good tessellation
Curriculum Tags: All
https://bsky.app/profile/tilefarmer.bsky.social/post/3lj4lvqpstc2u

Math Links for Week Ending Feb 21, 2024

Featured Links

It's never too early for PiDay resources
Curriculum Tags: All
https://mathequalslove.net/pi-day-jokes/

Resource Links

I always love resource summaries from other people and @Mathsjem always has good stuff
Curriculum Tags: All
https://www.resourceaholic.com/2025/02/5-maths-gems-186.html

A new Classic NCTM calendar is posted
Curriculum Tags: All
https://karendcampe.wordpress.com/2025/02/01/february-calendar-problems-3/

Video Links

Any help we can get when talking about the intricacies of dividing by zero is welcomed
Curriculum Tags: All
https://bsky.app/profile/howiehua.bsky.social/post/3liku6pw7n22f

As someone who taught my daughter how to differentiate polynomials when she was in grade 3 (just to show that knowing the mechanics doesn't mean you know the math), I love this
Curriculum Tags: All, MCV4U
https://youtu.be/TzDhdvVg9_c?si=sga6gqYVYVnLfRqy

Image Links

I love the visualization of this to help us remember that patterns are important in math
Curriculum Tags: All
https://x.com/CalcInsights_/status/1891359169233445268

Mathematics looks more elegant when you look at it from a perspective of patterns and symmetries...ᝰ.ᐟ pic.twitter.com/Mr9wg55ph4

— Calculus Insights (@CalcInsights_) February 17, 2025

Though I have always said this, I truly appreciate the connection to Scooby Do :-)
Curriculum Tags: MPM2D, MCR3U, MCF3M
https://x.com/howie_hua/status/1891991697698992142

Distance formula is just the Pythagorean Theorem. pic.twitter.com/GKy5l5hkck

— Howie Hua (@howie_hua) February 18, 2025

Math Links for Week Ending Feb 14, 2025

Featured Links

I never miss a chance to share @SaraVanDerWerf's stuff. This may be too late for this year but put it in your back pocket for next year. 
Curriculum Tags: All
https://www.saravanderwerf.com/nerding-out-on-resources-for-valentines-day/

Resource Links

Some Valentines activities for exponential functions
Curriculum Tags: MCR3U, MAP4C, MHF4U, MCT4C
https://karendcampe.wordpress.com/2022/02/10/i-%e2%9d%a4%ef%b8%8f-candy-math/

Some resources for teaching logs
Curriculum Tags: MHF4U
https://timcorica.substack.com/p/logarithms-some-teaching-ideas

A nice real world problem dealing with the value of a penny.

Curriculum Tags: MTH1W
https://www.citizenmath.com/lessons/common-cents

Video/Audio Links

The latest preview of #OAME2025
Curriculum Tags: All
https://talks.oame.on.ca/season-7

[New Podcast] It's the @OAMEcounts #OAME2025 Day 2 preview. Featuring @TheMathGuru @joboaler @NatBanting. Listen here:https://t.co/95KyY9ZtpW

Check out all the conference info at https://t.co/PCaIcus9Zd #MathChat #MTBoS #iTeachMath pic.twitter.com/YT8NtOI6mE

— OAMEtalks (@OAMEtalks) February 9, 2025

Here's your Desmos Valentines eCard
Curriculum Tags: All
https://www.desmos.com/calculator/yhaz5chjsr

Image Links

This is a fun factorial question. I don't think you can do it algebraically, you have to use some logic and knowledge of factorials 
Curriculum Tags: MDM4U
https://x.com/antonillos/status/1888505163800887542

solve for d. how fast can you find it❓ #math #challenge pic.twitter.com/bTqhcsdsOq

— Antonio Saco (@antonillos) February 9, 2025

Perfect when you are talking about order of operations
Curriculum Tags: Gr8, MTH1W

https://bsky.app/profile/natbanting.bsky.social/post/3li3lhddgz22g

Math Links for Week Ending Feb 7th, 2025

Featured Links

Valentine's Day is coming
Curriculum Tags: All
https://x.com/howie_hua/status/1887316499683287246
            

How to make intertwined hearts with your Valentine using math pic.twitter.com/czRrhPh0Jc

— Howie Hua (@howie_hua) February 6, 2025

Resource Links

The latest set of classic NCTM calendar problem
Curriculum Tags: All
https://karendcampe.wordpress.com/2025/02/01/february-calendar-problems-3/

Video/Audio Links

We are starting our previews of the #OAME2025 conference. Here is the first one
Curriculum Tags: All
https://talks.oame.on.ca/season-7

[New Podcast] It's the @OAMEcounts #OAME2025 Day 1 preview. Featuring @rjdurocher @Jason_To @LLB_315 & Camile Jones-Ford. Listen here: https://t.co/95KyY9ZtpW

Check out all the conference info at https://t.co/PCaIcus9Zd #MathChat #MTBoS #iTeachMath pic.twitter.com/hyQZhe5HDX

— OAMEtalks (@OAMEtalks) February 2, 2025

I love using the multiply by zero principle to prove that a negative times a negative is a positive. 
Curriculum Tags: Gr8
https://x.com/howie_hua/status/1885458678129864782

Why does a negative times a negative equal a positive? pic.twitter.com/lUsMBs0oet

— Howie Hua (@howie_hua) January 31, 2025

Here's a fun mathematical fact about the year, 2025, that I haven't seen yet
Curriculum Tags: All

https://x.com/aap03102/status/1886692753112735989

Every geek already knows that 2025 is a square year:

√2025 = 45

but did you know THIS….?! pic.twitter.com/G6uTK8lPXY

— Chris Smith MBE (@aap03102) February 4, 2025

It's funny how changing the context like this makes problems so much more palatable
Curriculum Tags: MPM2P, MFM2P
https://x.com/howie_hua/status/1886979871987167417

When you want students to solve a system of linear equations: pic.twitter.com/QY56nADJK2

— Howie Hua (@howie_hua) February 5, 2025

Connecting art and math
Curriculum Tags: All

https://www.youtube.com/watch?v=qV5iAbC1S58

Image Links

It's all math
Curriculum Tags: All
https://x.com/pickover/status/1886581661111833005

Sociology, biology, chemistry, physics, mathematics.

By Randall Munroe, https://t.co/WuBZ0BJ3Ae, cc by-nc 2.5 pic.twitter.com/HSsiWhqJsz

— Cliff Pickover (@pickover) February 4, 2025

It's important to understand functions
Curriculum Tags: MHF4U
https://bsky.app/profile/johngolden.bsky.social/post/3lh7c66e4fo2m

Different forms of the same data
Curriculum Tags: MDM4U
https://bsky.app/profile/abiruiz.bsky.social/post/3lh7i3w2zik2l

More math and art
Curriculum Tags: All
https://bsky.app/profile/3n1gm4th.bsky.social/post/3lhkyhffew22p