Math Links for Week Ending Aug. 18, 2023

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Not only is this an amazing set of equations (just over 380 lines) but it's also amazing that it was student created. It just goes to show you that when students are interested, they can do just about anything.
Curriculum Tags: All
https://twitter.com/Desmos/status/1691545516335661056

We're back with another round of #behindthegraph & we're sure that Esther’s representation of Katherine Johnson will give you the inspiration you need as we head into a new school year📝🎒! What strategies from this graph stick out? #behindthegraph #Desmos #KatherineJohnson pic.twitter.com/wy4yKj9O5L

— Desmos (@Desmos) August 15, 2023

Resource Links

It seems like @KarenCampe has been working overtime with her blog posts. I like this one on using the rectangular area model for multiplication of numbers, fractions, polynomials and more. But the thing that interested me the most was using the area model for division, specifically polynomial division. Very cool.
Curriculum Tags: Gr7, Gr8, MTH1W, MPM2D, MFM2P, MHF4U
https://karendcampe.wordpress.com/2023/08/16/area-arrangements/

New blog post! "Area Arrangements"
How can area help w/multiplying polynomials, long division, radicals, completing the square?#MTBoS #iTeachMath #T3Learns #algebrahttps://t.co/9VjG1VqYim

— Karen Campe (@KarenCampe) August 16, 2023

Video Links

I think it could be a neat idea to get students to do this for a number that is important to them. 
Curriculum Tags: All
https://twitter.com/Ayliean/status/1692569803632861619

Apropos of nothing, here is a list of reasons to love the number 32 🥳 pic.twitter.com/SPeaoRxbgS

— Ayliean (@Ayliean) August 18, 2023

I love a good visualization
Curriculum Tags: MHF4U
https://twitter.com/TimBrzezinski/status/1691766706987749489

Making sense of adding logarithms: https://t.co/hWkgTr3Ooi & https://t.co/aXYbZwdnQp & https://t.co/tuUBNao4Pl @geogebra pic.twitter.com/uuu74vylBY

— Tim Brzezinski (@TimBrzezinski) August 16, 2023

Some combinatoric probability
Curriculum Tags: MDM4U

https://twitter.com/howie_hua/status/1691605807992103420

New TikTok video: I've always wondered about this probability problem when eating with chopsticks pic.twitter.com/wLPzqN53F4

— Howie Hua (@howie_hua) August 16, 2023

I have always loved how the Pythagorean relationship works with any regular shape. I've done my own work in this area before but not as good as this.
Curriculum Tags: Gr8, MTH1W

https://twitter.com/TimBrzezinski/status/1691032632765681664

If #Pythagoras had regular heptagons https://t.co/AS1J5n8Ajv & https://t.co/3msTCY00VE @geogebra #MTBoS #ITeachMath #geometry #math pic.twitter.com/aTByEb0VBP

— Tim Brzezinski (@TimBrzezinski) August 14, 2023

Some more nice visualizations from @TimBrzezinski on Pi
Curriculum Tags: All

https://twitter.com/TimBrzezinski/status/1691066878834167808

π compilation https://t.co/EVH9H4sjHa & https://t.co/FNWNtupEG6 #MTBoS #ITeachMath #geometry #mathematics #MathChat #math pic.twitter.com/WsbcWfgNp8

— Tim Brzezinski (@TimBrzezinski) August 14, 2023

Though this is not math related, it does fit in with starting the year off right. 
Curriculum Tags: All

https://twitter.com/mr_Alsheimer/status/1689422067794341888

Week 1 TEACHER ACTIVITY to build relationships and have fun 🤩 Day 1 or Week 1 🙌🍎🔥🤩❤️❤️

“TOWER OF TERROR”
🍎 Red solo cups
📝 Note Cards

Example 👇 and directions in video 🎥 Share with your team and district!#NextLevelTeaching pic.twitter.com/C1UnIYV5oU

— Jonathan Alsheimer (@mr_Alsheimer) August 9, 2023

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I would say that this goes further as Physics is inside Chemistry, and Chemistry is inside Biology.
Curriculum Tags: All
https://twitter.com/mathladyhazel/status/1692515392172744804

Physics and mathematics. Best math meme ever. 😎 pic.twitter.com/zm1I4ZuQDM

— Math Lady Hazel 🇦🇷 (@mathladyhazel) August 18, 2023

Math Links for Week Ending Aug 11, 2023

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As a former president of the OAME, I always like to see/hear what other associations are doing. And as the host of the @OAMEtalks podcast, I am doubly interested when those associations have their own podcasts. So I have added this one from down under and the Australian Association of Mathematics Teachers to my page of math based podcasts. Just a few episodes in but it's always good to hear from other mathematics associations.
Curriculum Tags: All
http://ontariomath.blogspot.com/p/podcasts.html

Resource Links

You can listen to the latest @DebateMathPod podcast Episode and/or read about what @KarenCampe had to say as one of the guests. 
Curriculum Tags: All
https://karendcampe.wordpress.com/2023/08/08/technology-math-class/

New blog post! "Technology & Math Class" Important Things to Keep in Mind -- Highlights from our @DebateMathPod discussion!https://t.co/Q9sSfFulU9#MTBoS #iTeachMath #T3Learns #DebateMath @cluzniak @Rob_Baier @onlinekyne @edcampOSjr #edtech

— Karen Campe (@KarenCampe) August 9, 2023

Video Links

I've seen many of these and I love every one of them
Curriculum Tags: All
https://twitter.com/abakcus/status/1689467473668509696

When geometry and music come together, this is what happens. 😍 pic.twitter.com/oxGWSDsaQk

— Abakcus (@abakcus) August 10, 2023

Image Links

The thing I really like about this problem is that, sure, you can hammer it through with some algebraic manipulation but you can also do it with some simple guess and check with some knowledge of perfect squares. 
Curriculum Tags: All
https://twitter.com/Math_World_/status/1687769631065350144

Question of the day 05.08.2023 pic.twitter.com/PuPfvduCmJ

— Math World (@Math_World_) August 5, 2023

Math Links for Aug 4th, 2023

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I was introduced to the game Set years ago at Twitter Math Camp and loved it right from the start. So it's cool to see how the math is deeper than just playing the game. I love the vector space representation. Although they don't talk about it here, another variation is 3D Set. That you play more collaboratively but it's fun too. 
Curriculum Tags: All
https://www.youtube.com/watch?v=EkFX9jUJPKk

Resource Links

And speaking of vectors, the updated @Desmos Geometry tool handles them quite well.
Curriculum Tags: MCV4U
https://twitter.com/Desmos/status/1686390764585279491

🚨New Feature Alert🚨: Our Geometry Tool now includes vectors you can compute with in the expression list! How will you use our new vector tool? (Bonus: What do you notice about the vector tokens in the expression list as we move the vector around?) pic.twitter.com/5gtKZAxMOB

— Desmos (@Desmos) August 1, 2023

If you like @FawnPNguyen's Visual Patterns site then you'll love the @Mathigon treatment of it
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/MathigonOrg/status/1683477459667222528

Polypad is a great tool for exploring visual patterns. We've created interactive versions of 20+ visual patterns to help students engage in algebraic thinking. View the Polypad collection, some designed by @fawnpnguyen, at https://t.co/VBlH0LZIgF pic.twitter.com/VXGYepsI7K

— Mathigon (@MathigonOrg) July 24, 2023

I love that even the Egyptians thought unit fractions were important
Curriculum Tags: Gr7, Gr8
https://twitter.com/QuantaMagazine/status/1685344205319581696

With the exception of a single symbol for ⅔, Ancient Egyptians’ number system could only express more complicated fractions (like ¾) as sums of unit fractions, which are fractions that feature a 1 in their numerator (½ + ¼). https://t.co/9J6evWPqzo pic.twitter.com/TJmRojyo9L

— Quanta Magazine (@QuantaMagazine) July 29, 2023

I once tried to figure out my Erdos number based on my Masters work in Physics. I think I might be too far away but it's still pretty cool how much he did for math and physics
Curriculum Tags: All
https://twitter.com/PhysInHistory/status/1686011280350482432

Mathematician Paul Erdős used to work for nearly 19 hours a day doing math and often claimed that he requires only three hours of sleep. He published nearly 1500 papers on mathematics and co-authored with more than 250 mathematicians during his time. Erdös is credited for… pic.twitter.com/0nxKOWGmUf

— Physics In History (@PhysInHistory) July 31, 2023

Video/Audio Links

A fun secret message
Curriculum Tags: All
https://twitter.com/mathladyhazel/status/1685382101439242240

Sending a secret message using math. 😍 pic.twitter.com/zUjy7ZS1p4

— Math Lady Hazel 🇦🇷 (@mathladyhazel) July 29, 2023

A quick example of using the cosine ratio of the 60^o angle
Curriculum Tags: MPM2D, MFM2P
https://twitter.com/howie_hua/status/1685273606761107456

New TikTok video: An introduction to trig ratios pic.twitter.com/FtLToYSpo1

— Howie Hua (@howie_hua) July 29, 2023

I added the podcast @ThinkThankThunk to my Math Podcast page. Check it out
Curriculum Tags: All
https://ontariomath.blogspot.com/p/podcasts.html

[Updated Page] - My page of #math based podcasts now includes #ThinkThankThunk from @vendi55, @MaeganGiroux & @webbkyle where they discuss all things #ThinkingClassroom from @pgliljedahl check it out & all the other podcasts:https://t.co/VMJB1Oko9v#MathChat #MTBoS #iTeachMath pic.twitter.com/CA6zMg2U1x

— David Petro (@davidpetro314) August 4, 2023

Image Links

Jumping on the new logo bandwagon
Curriculum Tags: MTH1W, MPM2D, MCR3U, MCF3M
https://twitter.com/ZahlenRMD/status/1685582143072894977

😅😅😅✌️✌️✌️

New Logo of Twitter with graph ✌️#sharingisthenewlearning#newlogo pic.twitter.com/cgZOkwIwJj

— Reygan Dionisio (@ZahlenRMD) July 30, 2023

Math Links for Week Ending July 28th, 2023

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#MathPhoto23 is done. Hopefully you participated. Here's a reminder of this year's topics
Curriculum Tags: All
https://twitter.com/TheErickLee/status/1684598991517085696

Thats a wrap for #MathPhoto23! Thanks to all the enthusiastic mathematicians who volunteered to host this year. If your looking for more photo prompts, check out #MathSnaps2023 pic.twitter.com/rRzEGGYWjp

— Erick Lee HRCE Math (@TheErickLee) July 27, 2023

Resource Links

Here is a nice matching activity for trig quadrantal angles 
Curriculum Tags: MCR3U
https://mathequalslove.net/trig-functions-quadrantal-angles-odd-one-out-activity/

New Activity Alert:

Evaluating Trig Functions of Quadrantal Angles Odd One Out Activity https://t.co/XomfvJW5H9 #mtbos #iteachmath #precalchat #precalcchat #iteachtrig pic.twitter.com/swFwiZdXOB

— Sarah Carter (@mathequalslove) July 27, 2023

Video Links

Mmm Pizza
Curriculum Tags: MTH1W
https://twitter.com/howie_hua/status/1683975576665591814

New TikTok video: Which of these pizza slices is the better deal? pic.twitter.com/0PTXWoVxUz

— Howie Hua (@howie_hua) July 25, 2023

Image Links

This definitely made me look
Curriculum Tags: All
https://twitter.com/pickover/status/1682147205484871688

Mathematics.

Shiver in ecstasy. This number is prime. pic.twitter.com/vFN0DJTAcK

— Cliff Pickover (@pickover) July 20, 2023

Math Links for Week Ending July 21st, 2023

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As someone who has provided many hours of math PD in my district, a lot of what @FawnPNguyen says in this relatively short post resonates with me. Especially the part about it needing to expect it take time (and the bit about needing to watch each other teach).
Curriculum Tags: All
https://www.fawnnguyen.com/teach/ddk2byzliszdh05tj1o72rlxdlp8n1

I wrote a new post! https://t.co/QeFOO5zL8F
Also happy to share that https://t.co/ENqAid9wGu got a new look. Please check it out! #MTBoS #iteachmath

— Fawn Nguyen (@fawnpnguyen) July 18, 2023

Resourse Links

It would be cool to have the physical book. I have some older math books (early 1900s) but this is pretty cool. And it's about my favourite, Tessellations. 
Curriculum Tags: All
https://twitter.com/tessellationfan/status/1681399698588938240

An interesting historical finding, of a 1615(!) book on tiling in the context of glass designs. The book is replete with many simple, but attractive tilings, most of which I’ve not seen before! https://t.co/o1oxe8DXzx pic.twitter.com/JlgHMeBsDi

— David Bailey (@tessellationfan) July 18, 2023

Video Links

The Barbie movie is out so why not work on some equivalent ratios?
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/howie_hua/status/1681847685069029377

New TikTok video: If Barbie was my height, what would her waist, hand, and foot measurements be? pic.twitter.com/hySFNdMG1o

— Howie Hua (@howie_hua) July 20, 2023

Image Links

It's this week's #MathPhoto23 theme
Curriculum Tags: All
https://twitter.com/nomad_penguin/status/1681949090740076545

Week 8 of #MathPhoto23 is here!

Our focus is #units.

Where do you see composed and partitioned units around you? How do you see ‘How many’?

Take photos and share to Twitter using hashtags #MathPhoto23 #units.

I can’t wait to see what you find!#MTBoS #iTeachMath pic.twitter.com/6RhSmWeid7

— Amie Albrecht (@nomad_penguin) July 20, 2023

I like, in the comments, that someone points out that there is an example of this at visualpatterns.org
Curriculum Tags: MTH1W
https://twitter.com/jamestanton/status/1681242413145395201

Does the pattern persist?
If so, why? pic.twitter.com/XZwTTesMaT

— James Tanton (@jamestanton) July 18, 2023

Math Links for Week Ending July 14th, 2023

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I like how @Mathigon operates. Of course, I think that most EdTech that are active on social media are happy to take suggestions from their users. But it's nice when they follow up too
Curriculum Tags: All
https://twitter.com/MathigonOrg/status/1678481941480239110

We do write down every feature request, and while it sometimes takes us a while, we are working through the list. Thanks for your patience @GLewisOCT!

You can add prefix and suffix labels by turning on authoring mode and then adding the labels in the advanced menu. https://t.co/LXL0EHlaqJ pic.twitter.com/ZLMehYRdvn

— Mathigon (@MathigonOrg) July 10, 2023

Resource Links 

This week @KarenCampe hosted the #MathPhoto23 post about squares (see below). And at the same time she has this great blog post about squares. I think you could find something here for just about every grade. Take a look
Curriculum Tags: All
https://karendcampe.wordpress.com/2023/07/13/shout-out-for-squares/

New Blog Post: Shout Out for Squares!#geometry #MTBoS #iTeachMath https://t.co/n8PTxurwZo

— Karen Campe (@KarenCampe) July 13, 2023

Video Links 

Some Drag Queen combinatorics for you from @OnlineKyne
Curriculum Tags: MDM4U
https://www.tiktok.com/@onlinekyne/video/7255477790437428486?_r=1&_t=8dyQ9SfxVKw

@onlinekyne Okay, maybe dont start actually ranking queens but DO start learning how to code! #dragrace #lipsync #sorting #coding ♬ original sound - Kyne

Image Links 

You can always count on @JamesTanton to give us simply devised problems that have really elegant solutions.
Curriculum Tags: MTH1W
https://twitter.com/jamestanton/status/1679036118082125825

Two squares are constructed as shown in two congruent right isosceles triangles.
Which square is the largest and what is the ratio of their two areas? pic.twitter.com/ziDMJyqWoC

— James Tanton (@jamestanton) July 12, 2023

Here is Week 7 of #MathPhoto23
Curriculum Tags: All
https://twitter.com/KarenCampe/status/1679823018573299715

Hello Math-y folks! Time for week 7 of #MathPhoto23 with theme #squares !
Where do you see squares & cubes in geometric shapes, numbers or anywhere?
Take photos & share to Twitter using hashtags #MathPhoto23 #squares.
Reminder: try to use alt text for access.#MTBoS #iTeachMath pic.twitter.com/tQUh7Etmlh

— Karen Campe (@KarenCampe) July 14, 2023

   

Math Links for Week Ending July 7th, 2023

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Though I have never met @MrValencia24, I feel in him a kindred spirit from all of his posts here on Twitter. And it makes total sense that he would publish a book on called Math Play. And it's even cooler that he's putting it out by @CodeBreakerEdu who literally lives just a few kms away. 
Curriculum Tags: All
https://twitter.com/MrValencia24/status/1675968261278580737

Very grateful and excited to share #MathPlay with the world🌎🌍🌏 Thank you to my publisher @codebreakeredu for amplifying teachers’ voice🙏@McMenemyTweets @mraspinall 🦾#CodeBreaker

📖 https://t.co/jbOw1JtBJj#ITeachMath #MTBoS #MathIsFun #MathChat #ElemMathChat #STEM #math🧮 pic.twitter.com/SNNLHh8DMK

— Libo Valencia 🫶 #MathPlay (@MrValencia24) July 3, 2023

Resource Links

Here's an idea, take a math word and have students take each letter in the word to make a relevant Poem. And while you're at it, check out the other math related poem posts
Curriculum Tags: All
https://poetrywithmathematics.blogspot.com/2023/07/math-class-express-point-of-view-with.html

Video Links

I wonder if the short cut "keep, flip, change" is a US only phrase because I don't recall ever using it (the phrase) here in Ontario. None the less this short video of how to demonstrate why using Polypad is great(compared to my much longer conceptual development of the rule here). 
Curriculum Tags: Gr7, Gr8
https://twitter.com/TimBrzezinski/status/1675475880846475264

Ditch #KeepChangeFlip (version 2): How Ss can meaningfully and visually divide 2 fractions where dividend is < the divisor in @MathigonOrg Polypad (https://t.co/HgqAGlaGXg) https://t.co/ozJSJCSndR #MTBoS #ITeachMath #math #ElemMathChat pic.twitter.com/RUlNZFBqLG

— Tim Brzezinski (@TimBrzezinski) July 2, 2023

I have talked about this pattern for years (as an example of how a pattern may not go on forever) so I totally appreciate @3Blue1Browns explanation (as only he can do)
Curriculum Tags: All
https://twitter.com/3blue1brown/status/1675558616357826560

The puzzle below is a famous cautionary tale in math. But there's more to it than just coincidence, and on the YouTube version, we dig into what's really going on.

Full explanation: https://t.co/KExRH7X4yK pic.twitter.com/kkuXptV1H4

— Grant Sanderson (@3blue1brown) July 2, 2023

And this song as a followup to the above video is pretty good
Curriculum Tags: All
https://twitter.com/3blue1brown/status/1674167549582512129

Happy Tau Day! As something a little different, here’s a clip from a bit I did at @standupmaths's “Evening of Unnecessary Detail” a few years ago.

Full video here: https://t.co/BNlCsRaCQY pic.twitter.com/EnwjVRnZhB

— Grant Sanderson (@3blue1brown) June 28, 2023

Image Links

More prompts from @JamesTanton to practice your coding & math chops
Curriculum Tags: MTH1W
https://twitter.com/jamestanton/status/1676894255195869185

The sum of two triangular numbers is a square number infinitely often: T(n) + T(n-1) = n^2.
It can happen that the product of two triangular numbers is a square number
Eg T(2) = 3 and T(24) = 300 and 3x300 = 900 = 30^2.
Does this happen infinitely often too? pic.twitter.com/EogU1JzBsa

— James Tanton (@jamestanton) July 6, 2023

I have used this image for years to talk about fraction addition. I didn't realize it was part of a series from an artist. 
Curriculum Tags: Gr7, Gr8
https://twitter.com/aamtinc/status/1676818257700089856

Number talks aren't just for primary age children. Check out these amazing images from Turkish artist Sakir Gokcebag.https://t.co/OX5kxbB2H7#Mathseducation #ThinkonThursday #Numbertalks pic.twitter.com/K4uDycatxZ

— AAMT Inc. (@aamtinc) July 6, 2023

It's week 6 of #MathPhoto23    
Curriculum Tags: All
https://twitter.com/DianeDevine18/status/1676681970917466113

#MathPhoto23 #buildmath
Hi Everyone! Time for week 5 of #MathPhoto23! Where do you see mathematical patterns and shapes built into the world around us? Take photos and share to Twitter using the hashtags #MathPhoto23 and #builtmath. #ITeachMath" pic.twitter.com/Uf39G3wPko

— Diane Devine (@DianeDevine18) July 5, 2023