Math Links for Week Ending Sept 15th, 2023

Featured Links

I like to share stuff I've found. That's what this blog is. And so I love when others do the same. In this case a post from @Mathsjem and another from @KarenCampe.
Curriculum Tags: All
https://www.resourceaholic.com/2023/09/5-maths-gems-174.html
https://karendcampe.wordpress.com/2023/09/09/carnival-of-mathematics/

New! My 174th gems post. Ideas, updates and resources for maths teachers. 💎https://t.co/4lF0ro2R9E

Hat tips to follow!#mathsgems #mathschat #mathstlp #mathscpdchat #teammaths pic.twitter.com/rYhQuJMY2w

— Jo Morgan (@mathsjem) September 10, 2023

New blog post: 219th Carnival of Mathematics!https://t.co/gKakrZ4IHG#MTBoS #ClassroomMath #iTeachMath #MathChat

— Karen Campe (@KarenCampe) September 9, 2023

Resource Links

I love the way that @JemMaths used microblogging to outline this whole lesson on scatterplots. Including the start where she claims to hate them. Be sure to look at the whole set of posts to get the gist and follow the link below to get all the goodies. 
Curriculum Tags: MTH1W
https://maths.ormistonacademiestrust.co.uk/statistics-probability/

So writing a unit on scatter graphs intrigued me. How can I do it better? The result is @OAT_Maths Unit SP2: Bivariate Data. We start by looking at relationships between two variables (as a general idea, no technical vocab) pic.twitter.com/aB5lHgo9Pb

— Jemma Sherwood (@jemmaths27 on Threads) (@jemmaths) September 11, 2023

Video Links

Any time you can use a Venn diagram in math class is a good time :-)
Curriculum Tags: Gr7, Gr8
https://twitter.com/howie_hua/status/1700496257901535236

I wish I was taught this way of finding the GCF and LCM when I was in school. It's so much more efficient than factor trees. pic.twitter.com/bxvyU10v8R

— Howie Hua (@howie_hua) September 9, 2023

I like how the grey shapes only change orientation and not size or shape.
Curriculum Tags: All
https://twitter.com/KeishiroUeki/status/1700492780857143641

pic.twitter.com/rSCvr9ejZj

— 上木 敬士郎 / Keishiro Ueki (@KeishiroUeki) September 9, 2023

Image Links

I'm not sure what it is about simplifying radical expressions but I love it
Curriculum Tags: MPM2D
https://twitter.com/sonukg4india/status/1700710823390532021

#morning with #math#solve for x pic.twitter.com/Pw2fJEgrrT

— SKG (@sonukg4india) September 10, 2023

Even though Seinfeld may not be the most relevant for students, it's still a great starter. 
Curriculum Tags: All
https://twitter.com/benjamindickman/status/1700372196177162647

#SeinfeldMath: Is Kramer's estimate accurate? Too high, too low, just about right? How do you know? or What's your intuition?

📺🧮

Image text:
That's a nickel a day for 20 years. It's going to be $50,000. pic.twitter.com/A70TDdAtGT

— Benjamin Dickman 🎻🧱 (@benjamindickman) September 9, 2023

I think that you could do this with all kinds of things. The thing and it's opposite.
Curriculum Tags: MCR3U, MHF4U
https://twitter.com/benorlin/status/1701248053280170400

All of trigonometry in a single image, you're welcome pic.twitter.com/Wfqv0z1WGM

— Ben Orlin (@benorlin) September 11, 2023

I love heat maps but I would have guessed 7x8 would have been the most difficult

Curriculum Tags: All
https://twitter.com/infobeautiful/status/1701305612695409147

Quick! What's 6✖️8?
This heatmap shows the trickiest multiplications for kids aged 5-8. Love to see a similar study on adults to see how they compare! #dataviz #maths pic.twitter.com/gaQ2s4r3fv

— Information is Beautiful (@infobeautiful) September 11, 2023

    

Math Links for Week Ending Sept 8th, 2023

Featured Links

It may be a bit self indulgent but this week it's me. At #OAME2023, I did an updated version of my session on how to listen to math based podcasts. And for the first episode of season 6 of the @OAMEtalks podcast (where we feature speakers from the most recent OAME conference) we have the entire audio version of the session that I did. There are excerpts from all kinds of math based podcasts so that you can have a sample of things to listen to in full. You can listen to the podcast, below, and also follow along in with the slide deck. And you can hear the whole set of season 6 episodes at the OAMEtalks website
Curriculum Tags: All
https://talks.oame.on.ca/

Reasource Links

I love when people share resources, even if it's not their own. In this case, this resource is more than a math video of the week (which can be found in the Word doc). Check out the padlet for all the goods
Curriculum Tags: All
https://padlet.com/ECR_Maths/ks5-maths-enrichment-and-extras-62ylpics8uqudvav

BRILLIANT resource. (
And a reminder I need to schedule my Monday emails). 😀 https://t.co/D0cjCABty1

— Hannah 🐦 (@missradders) September 5, 2023

Video Links

Even though the concept of this movable bridge is pretty cool, the math of piecewise functions is a good applications for senior high school math.
Curriculum Tags: MHF4U, MCV4U
https://www.youtube.com/watch?v=SsGEcLwjgEg

Image Links

And for your calculus kids who want a function that is differentiable nowhere but continuous everywhere, here you go.
Curriculum Tags: MCV4U
https://twitter.com/pickover/status/1699811340259377645

Don't you just love the Weierstrass function?

"In mathematics, the Weierstrass function is an example of a real-valued function that is continuous everywhere but differentiable nowhere. It is an example of a fractal curve. It is named after its discoverer Karl Weierstrass."… pic.twitter.com/ANcr9207rP

— Cliff Pickover (@pickover) September 7, 2023

Math Links for Week Ending Sept 1, 2023

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It's the beginning of the year (at least it is here in Ontario) and I like highlight activities that help you connect with your students. From  @SaraVDWerf's we have her week 1 activities. There are so many good ideas here to help build relationships with your new students. 
Curriculum Tags: All
https://www.saravanderwerf.com/my-week-1-math-posts-plus-something-new/

And from @MathEqualsLove we have 40 suggestions for 1st week activities 
Curriculum Tags: All
https://mathequalslove.net/first-week-of-school-activities/

Resource Links

Also talking about building relationships is @KarenCampe. She actually mentons @SaraVDWerf's name tents but the bigger focus is on birthdays and other ways to have your students be seen. 
Curriculum Tags: All
https://karendcampe.wordpress.com/2023/08/30/birthdays-being-seen/

New Blog Post: "Birthdays & Being Seen"
What do you do to forge relationships with your students and celebrate during the year?#MTBoS #iTeachMath #T3Learnshttps://t.co/7Z3qKxxVQc

— Karen Campe (@KarenCampe) August 30, 2023

And @KarenCampe continues to post old NCTM Calendar problem sets. This one from Sept 2009
Curriculum Tags: All
https://karendcampe.wordpress.com/2023/09/01/september-calendar-problems/

Problem solving Calendars are BACK!
Just posted the September Calendar of Problems!
Enjoy & let us know any working out you want to share, esp by students. #MTBoS #iTeachMath #T3Learns #ProblemSolving #Algebra #Geometry#MathChathttps://t.co/nSmnPUKqEF

— Karen Campe (@KarenCampe) September 1, 2023

Adding to her list of first week activities is @MathEqualsLove who brings us Number contests. Something all can play and be successful. 
Curriculum Tags: All
https://mathequalslove.net/number-contests-for-the-first-day-of-school/

Looking for a new activity for the first day/week of math class? Look no further than this series of first day number contests that will get students working together to try and read one another's minds in a fun math-y competition. https://t.co/CxWN3zzpeO #mtbos #iteachmath pic.twitter.com/nJYWXEWgQq

— Sarah Carter (@mathequalslove) August 27, 2023

Video Links

A couple of geometric animations with squares
Curriculum Tags: All
https://twitter.com/golan/status/1695892923097731251

Thinking about giving my Creative Coding sophomores a @beesandbombs-inspired "figure-ground reversal" GIF loop assignment. Did a few tests to get a feel for the difficulty. It's only like 30 lines of code to get something working...but this is definitely not intro-level material. pic.twitter.com/ChzBwhPvaF

— Golan Levin (@golan) August 27, 2023

https://twitter.com/golan/status/1695893599550836913

One more pic.twitter.com/xfIjOWIy7K

— Golan Levin (@golan) August 27, 2023

Image Links

It's pretty cool that these are hand drawn images
Curriculum Tags: All
https://twitter.com/pickover/status/1696620640457941295

Mathematics.

Leonardo da Vinci's Illustration for De Divina Proportione (published 1509). What is the name of this object? https://t.co/BCnNDNqT7Y pic.twitter.com/VUEGZkc2aO

— Cliff Pickover (@pickover) August 29, 2023    

Math Links for Week Ending Aug 25th, 2023

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Myself (along with @RobinMath3) presented at the @CEMC summer conference this week and at some of the other sessions there were a couple of nice resources. And because it was the CEMC conference you know that there would be problem solving. So of course people shared some resource. In this case, we were sad to hear of the passing of Don Steward due to COVID but that his family maintained his site which has a lot of resources. Check this huge resource out
Curriculum Tags: All
https://donsteward.blogspot.com/

Also there was this nice source of Indigenous math that, I'm sure, will be expanded on in the future. Be sure to check out the looming stuff that includes coding:

Curriculum Tags: All 
https://firstnationmathvoices.ca/

Resource Links

It's always nice when the real world closely matches with theoretical probability
Curriculum Tags: MDM4U
https://twitter.com/d_spiegel/status/1692513328432636272

Each squad in 2023 Women’s World Cup has 23 players, so probability theory says we expect around half the squads to have two members with the same birthday (d/m). Neither England nor Australia have a matching pair, but out of 32 squads, 15 do! The goddess Fortuna is working well

— David Spiegelhalter (@d_spiegel) August 18, 2023

Video Links

Real world calculus
Curriculum Tags: MCV4U
https://twitter.com/MathMatize/status/1692529566340763851

When the slide is continuous but not differentiable pic.twitter.com/6TXvbbBHIY

— Jono Herman (@MathMatize) August 18, 2023

Nice visualization of this geometry problem
Curriculum Tags: MTH1W
https://twitter.com/74WTungsteno/status/1692174812972798265

Wow...https://t.co/iFqtzy6HC5 (by Project Mathematics! - Caltech)#math #science #iteachmath #mtbos #visualization #elearning #geometry pic.twitter.com/hrvRTGJ8qv

— Tungsteno (@74WTungsteno) August 17, 2023

Image Links

I love anything to do with Pythagorean Triplets
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/jamestanton/status/1692845612452999265

Classic: Choose any two (square) numbers on main diagonal of a multiplication table. Find their sum & their difference. Also, use the two square numbers to make a square in the grid. Sum the two entries in the remaining corners. Prove you are sure to have a Pythagorean triple! pic.twitter.com/efOPjH6OAV

— James Tanton (@jamestanton) August 19, 2023

You can't use a calculator unless you first do some simplifying
Curriculum Tags: MDM4U

https://twitter.com/sonukg4india/status/1692404646931988487

#puzzled #Evaluation is pic.twitter.com/riEvGaGHpN

— SKG (@sonukg4india) August 18, 2023

    

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

Image Links

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

Featured Links

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

Featured Links

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