Math Links for Week Ending Mar 31st, 2023

Featured Links

I think that any time you can show students that they can be powerful learners is a good thing
Curriculum  Tags: All
https://www.11alive.com/article/news/education/no-east-teens-make-pmathematical-discovery-2000-years-making/289-e89f40cb-85f8-4a55-ae3f-3ec37412d7b8

Some kids definitely do their homework

New Orleans East teens make 'impossible' mathematical discovery unproven for 2,000 yearshttps://t.co/yTqXTktkDI#MathChat #MTBoS #iTeachMath

— David Petro (@davidpetro314) March 25, 2023

Resource Links

Meet the Ontario #statistics prof who claims he can’t stop beating Roll Up To Win
Curriculum Tags: MDM4U

https://kitchener.ctvnews.ca/meet-the-ontario-stats-prof-who-claims-he-can-t-stop-beating-roll-up-to-win-1.6332975

Make sure you read the entire thread in the comments of this post for some ideas on how to open everyday and ordinary questions
Curriculum Tags: All
https://twitter.com/MathsCirclesOz/status/1640580040512491520

How to turn 1 short maths problem into an entire lesson

(A method we use for every problem we create)

Here's how to do it:

— Maths Teacher Circles (@MathsCirclesOz) March 28, 2023

Make sure you look at @JennaLaib's comment for her set of sample slow reveal graphs
Curriculum Tags: MDM4U
https://twitter.com/normabgordon/status/1640376951402557441

@jennalaib not a #slowreveal just a beautiful reveal! https://t.co/5yHAe2DnTT

— Norma Gordon (@normabgordon) March 27, 2023

I hope @MathEqualsLove keeps posting math puzzles
Curriculum Tags: All
https://twitter.com/mathequalslove/status/1639053464633475073

1-2-3 Puzzle

This week's puzzle of the week is adapted from Serhiy Grabarchuk's The Simple Book of Not-So-Simple Puzzles.

It is an excellent puzzle book with so many puzzles that I can see myself using with my students! https://t.co/vtAWvrfukR #mtbos #iteachmath #teach180 pic.twitter.com/QJRdie6NT7

— Sarah Carter (@mathequalslove) March 23, 2023

I can't help posting about this problem when ever it arises. Who knew order of operations could be so subtle?
Curriculum Tags: All
https://twitter.com/stevenstrogatz/status/1639721953111015427

Apparently folks in the UK are fighting about the latest PEMDAS/BODMAS/BIDMAS teaser. I was asked to weigh in by @DailyMailUK. Have a look if this is your sort of thing. https://t.co/4MYM5fv01k

— Steven Strogatz (@stevenstrogatz) March 25, 2023

What a cool an informal way to do transformations
Curriculum Tags: Gr7, Gr8
https://twitter.com/dpscher/status/1640328345232482305

New blog post: Transformation dances with penguin and frog. Shake a leg with these rotation, reflection, and dilation dances! https://t.co/DFyBxrQ81Q… #mtbos #mathchat #ITeachMath pic.twitter.com/i3FD8dKHRh

— Daniel Scher (@dpscher) March 27, 2023

Video Links

I like how @Ayliean takes tessellation to the next level. 
Curriculum Tags: All
https://twitter.com/Ayliean/status/1641483036679196672 

A celebration of the shiny new

✨aperiodic mono-tile✨

Maths is definitely not done yet! pic.twitter.com/l8UBvzdPbs

— Ayliean (@Ayliean) March 30, 2023

More Tessellations 
Curriculum Tags: All
https://twitter.com/cs_kaplan/status/1639269752194342912

For some reason I hadn't thought to create an animated GIF of the continuum. I've put one up on the hat page (https://t.co/MXh2q8k1I9) if anyone wants it. pic.twitter.com/BPUNkIn7vl

— Craig S. Kaplan (@cs_kaplan) March 24, 2023

I think if you pose a question as "can you guess?" or as a puzzle that will always engage students a bit more (or at least make questions more "friendly")
Curriculum Tags: Gr7, Gr8
https://twitter.com/davidporas/status/1639319636305903654

One of all-time favorite Polypad activities! https://t.co/amGd1YCWSp

— David Poras (@davidporas) March 24, 2023

Image Links

And even more tessellations (in many forms)
Curriculum Tags: All
https://twitter.com/MathforLove/status/1638946865831100416

An extraordinary mathematical discovery!

A roundup of thoughts and resources about the #aperiodicmonotile, plus other news - https://t.co/8Jj6dcYMtg pic.twitter.com/vtFdKWRx35

— Dan Finkel (@MathforLove) March 23, 2023

A simple problem (if you are paying attention) dealing with powers
Curriculum Tags: MTH1W 
https://twitter.com/sonukg4india/status/1640554059668275200

#morning with #math pic.twitter.com/Rj4QHkfC3Q

— SKG (@sonukg4india) March 28, 2023

I think this could be a catalyst to having students make a bunch of questions in the form "Which is greater a^b or b^a?"
Curriculum Tags: MTH1W
https://twitter.com/sonukg4india/status/1639113058177134600

#Comparison gives pic.twitter.com/4bQXdVBtQQ

— SKG (@sonukg4india) March 24, 2023

    

Math Links for Week Ending Mar 24, 2023

Featured Links

Some of these I have shared here before but there are many other resources that I have not seen before. You will most likely find at least one thing that you can use here:
Curriculum Tags: All
https://mathcommunities.org/resources/

There's a pretty impressive list of free (and low-cost) math resources at https://t.co/vFILhlghmt!#iteachmath #mtbos @AIMathCommunity

— Dan Finkel (@MathforLove) March 24, 2023

Resource Links

I'm a big fan of knowing why rather than just showing the properties
Curriculum Tags: MTH1W
https://twitter.com/Christophe_Sew/status/1637276661379919875

Really want student to grasp WHY the perpendicular bisector method works before using it.https://t.co/lsX7wofxr3@desmosclassroom @mathigon @davidpetro314 pic.twitter.com/PLvybfyLa4

— Mr. S (@Christophe_Sew) March 19, 2023

Video Links

I feel like I've shared this one before but there is no harm in seeing these periodic functions again.
Curriculum Tags: MCR3U
https://twitter.com/mathladyhazel/status/1639319656849604624

Polygonal sine. So satisfying. [https://t.co/YgovMmenHf] pic.twitter.com/0qXMrGmHD6

— Math Lady Hazel 🇦🇷 (@mathladyhazel) March 24, 2023

How can you not love the number 7. Regardless, these properties of the decimals are cool
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/howie_hua/status/1639058920483483649

I generally dislike the number 7 but I can't deny how cool the decimal representations for sevenths are. pic.twitter.com/KLs33DZgbu

— Howie Hua (@howie_hua) March 24, 2023

Image Links

I think this could be a catalyst for students to create their own similar puzzle and have each other solve them by creating an equation.
Curriculum Tags: MTH1W
https://twitter.com/pickover/status/1637146657522319363

Mathematics.

(Although some of you will say this is too "easy," what percentage of people on planet Earth could answer such a strange question?) pic.twitter.com/lpCOlRkuhq

— Cliff Pickover (@pickover) March 18, 2023

This is a nice prompt for students to show understanding of fractions 
Curriculum Tags: Gr7, Gr8
https://twitter.com/TimBrzezinski/status/1639077166196445185

What is wrong with this picture? 😮 Perhaps the ability to scale fraction bars in @MathigonOrg could serve as future fodder for some #WODB Qs? #MTBoS #ITeachMath pic.twitter.com/99XSV2mZfH

— Tim Brzezinski (@TimBrzezinski) March 24, 2023

Do you like halves? Well this would be a good check of your simplification skills
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/sonukg4india/status/1639084629851512832

#morning with #math pic.twitter.com/sDECMPU5x0

— SKG (@sonukg4india) March 24, 2023

Math Links for Week Ending Mar. 17th, 2023

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This reminds me of the book from @JohnAllenPaulos "A Mathematician Reads the Newspaper" 
Curriculum Tags: All
https://twitter.com/BristOliver/status/1634873628583149575

My piece "How to read the news like a mathematician" is in today's Observer. https://t.co/UITPAKKmem Fairly confident there's something for everyone to get cross about in there, but enjoy anyway!

— Oliver Johnson (@BristOliver) March 12, 2023

Article Links

It's good to remind students that even the smartest among us can still find joy in simple math
Curriculum Tags: All
https://twitter.com/stevenstrogatz/status/1636082705468207108

How a theoretical physicist’s passionate approach to simple math got him the Padma Bhushan and the Boltzmann Medal -- great piece about Deepak Dhar https://t.co/TMbVPRUU6R via @theprintindia

— Steven Strogatz (@stevenstrogatz) March 15, 2023

Resource Links

I like the integration of #PolyPad to self check answers in this intro to Algebra activity
Curriculum Tags: Gr7, Gr8
https://twitter.com/Christophe_Sew/status/1636351225611395072

Giving the MathsPad Y7 Intro to Algebra a whirl.

Converted first slides using @desmosclassroom.
Using @mathigon to check understanding and for algebra tiles.@MathsPadNicola @davidpetro314 #iteachmath pic.twitter.com/QXq8KwUfEa

— Mr. S (@Christophe_Sew) March 16, 2023

This is a pretty cool geometry problem. Though I'm not sure how many students may get it without some hints, I think it's a great way to show how amazing geometry could be
Curriculum Tags: Gr7, Gr8

https://twitter.com/MathforLove/status/1635717498871123969

The Three Square Problem came up recently, and I revisited my old blog post on the topic.

The three angles in the image below sum to 90 degrees.

But why?!

This is a fabulous geometry problem, with great extensions and variations!https://t.co/Xhbdyhjhlm#iteachmath #MTBoS pic.twitter.com/QgzJHFP4ke

— Dan Finkel (@MathforLove) March 14, 2023

Video Links

I like this proof because it isn't very algebraic so that kids may have an easier time of understanding why it's true.
Curriculum Tags: MCV4U, MHF4U
https://twitter.com/howie_hua/status/1636151564242137090

How do we know 1 + 1/2 + 1/3 + 1/4 + ... diverges to infinity? pic.twitter.com/gEoogxsbCa

— Howie Hua (@howie_hua) March 15, 2023

Image Links

This problem should keep your kids busy when percent it the topic of the day
Curriculum Tags: Gr7, Gr8
https://twitter.com/jamestanton/status/1634495629853605890

Cup A contains 100 mL of juice. Cup B is empty.
I move 10% of the juice of cup A into cup B, and the 10% of the contents of cup B back into A. That leaves 91 mL in cup A.
What happens if I keep repeating this 2-step process? Will I empty cup A? Will amount of juice in A stablise? pic.twitter.com/9OAQ5vZY4U

— James Tanton (@jamestanton) March 11, 2023

    

Math Links for Week Ending Mar. 10th, 2023

Featured Links

Well it's that time of year. Pi Day is coming. And so as I do, I post a link to my Pi Day Pinterest page (do people still use Pinterest?). Anyway here's a bunch of Pi related videos, images and activities. And as I try to reveal every year, it's Pi hiding in plain sight in the Rolling Stones logo.
Curriculum Tags: All
https://www.pinterest.ca/davidpetro314/pi-day/

Resource Links

You can always count on @MathEqualsLove for tonnes of math related activities. In this case, an fun little puzzle to get kids thinking about Pi and don't forget her links to all kinds of Pi Day activities.
Curriculum Tags: All
https://mathequalslove.net/pi-puzzle-for-pi-day/

Someone on Instagram asked if I had a file to make a jumbo version of my Pi Puzzle. I didn't, but I decided to make it happen.

The question is why didn't I think of this???

Post has been updated: https://t.co/wR82sMV8St #mtbos #iteachmath #puzzlingclassroom #piday #piday2023 pic.twitter.com/Y8SRZgcyeZ

— Sarah Carter (@mathequalslove) March 8, 2023

I like how @Christophe_Sew uses @DesmosClassroom to build really targeted activities for his students. This one around expanding and simplifying quadratics. 
Curriculum Tags: MPM2D, MCR3U, MCF3M, MBF3C
https://teacher.desmos.com/activitybuilder/custom/6406b1461928f6571a6fba54

Loving the new @desmosclassroom formatLatex tool.

Made these examples to help my students factorise quadratic expressions.https://t.co/XOgwgviKXC@davidpetro314 #iteachmath pic.twitter.com/6Seu1zbvUi

— Mr. S (@Christophe_Sew) March 7, 2023

Even if you don't use this particular example. I like the idea of showing students a function and it's derivative and having them think through which is which.

Curriculum Tags: MCV4U
https://twitter.com/dment37/status/1632057679609839619

Function challenge n°2 . One function is f and the other is f'… but which is f and which is f'? @geogebra
#geogebra #math #science #iteachmath #mtbos #visualization #elearning @geometry @bancoche
#Physics pic.twitter.com/trCRtE6IaZ

— Daniel Mentrard (@dment37) March 4, 2023

Video Links

It wouldn't be a PiDay without @StandupMaths creating some sort of video. where he calculates Pi with some method of his choice. In this case,  using a fast car
Curriculum Tags: All
https://www.youtube.com/watch?v=_ZbUyS2IRMo

A little Pythagorean Theorem, a little area and a simple packing problem from @Howie_Hua
Curriculum Tags: Gr8, MTH1W
https://twitter.com/howie_hua/status/1632415214632316930

New TikTok video: Which configuration of 12 cans is more efficient? pic.twitter.com/WjmVbBYKpF

— Howie Hua (@howie_hua) March 5, 2023

Image Links

I'm not sure why I like these radical simplification questions so much but I do
Curriculum Tags: MPM2D, MCR3U
https://twitter.com/KH2020H0/status/1632801717375967232

#math pic.twitter.com/1t2mX4es8H

— KHALID (@KH2020H0) March 6, 2023

Math Links for Week Ending Mar 3, 2023

Featured Links

Even if all you get out of this is the math games short list then it's worth it but seriously, there is some great info here about having a great math games night at school.
Curriculum Tags: All
https://mathforlove.com/2023/02/family-math-night-resources/

New blog!

My breakdown of what you'll need to run a Family Math Night (for K-5).

If you're a teacher, math coach, PTA member or anyone who's taking on this project, I hope this helps!

Includes free downloads of my favorite math night activities 😀https://t.co/WJDU4zbiVK

— Dan Finkel (@MathforLove) February 23, 2023

Resource Links

Here is the latest "retro" @NCTM March set of Calendar problems.
Curriculum Tags: All
https://twitter.com/KarenCampe/status/1630943632785129472

New blog post! March Calendar Problems#MTBoS #iTeachMath #T3Learns #ProblemSolving https://t.co/50DaNnG66D

— Karen Campe (@KarenCampe) March 1, 2023

I really like the fact that a) @NatBanting has really great ideas and that b) he shares curated collections of other people using those ideas. In this case it's Oops I Forgot. Take a look
Curriculum Tags: All
http://natbanting.com/oops-i-forgot/

Three new updates to #OIFMath (long overdue)https://t.co/qjVtNYO1U7

Graphing a story --> @TheErickLee
Choosing 3 numbers --> @MrJames_MH
Area of shapes --> @joann_sandford #MTBoS #iteachmath

— Nat Banting (@NatBanting) February 25, 2023

Video Links

A nice mashup of @Numberphile and @3Blue1Brown
Curriculum Tags: All
https://www.youtube.com/watch?v=YAsHGOwB408

Image Links

And I thought @OnlineKyne was the only drag queen that posted math memes. Maybe it's just Canadian drag Queens. Thanks to @KMarkPet for pointing this one out.
Curriculum Tags: All
https://twitter.com/Bhytes1/status/1629195966359248899

pic.twitter.com/hZICoNYjqe

— Brooke Lynn Hytes (@Bhytes1) February 24, 2023

I see a Klein bottle and I have to post it. That's just the way it is
Curriculum Tags: All
https://twitter.com/pickover/status/1629278251628523526

Mathematics. Enter a higher dimension.

Spiral Klein Bottle. Source: https://t.co/Ih0kXeFT2X pic.twitter.com/lGLJmkWsIo

— Cliff Pickover (@pickover) February 25, 2023

Can you think of other Pythagorean triples that you can do this with?

Curriculum Tags: Gr7, Gr8
https://twitter.com/sonukg4india/status/1628783880009572352

#Pythagoras #Theorem pic.twitter.com/AdYHQ9dKfh

— SKG (@sonukg4india) February 23, 2023

Is this a problem dealing with powers, patterns or equations (or all of these)?
Curriculum Tags: MTH1W 
https://twitter.com/sonukg4india/status/1629127478064054274   

Math Links for Week Ending Feb 24th, 2023

Featured Links

Thanks for reminding me to get connected to this book. 
Curriculum Tags: All
https://www.goodreads.com/en/book/show/58147405

Such hopeful and inspiring conversations this evening with educators from across BC as the @BCAMT hosted a #BCAMTreads event discussing Dear Citizen Math by @karimkai - how can we look at the world with math? pic.twitter.com/WO4vNqgDmn

— Janice Novakowski (@jnovakowski38) February 23, 2023

Resource Links

I love when people find examples of things that may not seem (to the people who made them) mathematical but, in fact, are. 
Curriculum Tags: MCF3M, MCR3U, MBF3C
https://twitter.com/saravdwerf/status/1628962032694296576

This guy on TikTok is making a batch of pasta everyday with the egg yolks double each day. He is on day 9. #exponential growth. I have so many wonderings. https://t.co/1SoRqHLMmj

— Sara VanDerWerf (@saravdwerf) February 24, 2023

Open middle problems can be used for just about any math topic, including rounding
Curriculum Tags: Gr7, Gr8
https://twitter.com/mrsforest/status/1628553907101114370

Any ideas on rich problems or contexts to bring out a need for rounding?

I thought about this a few years ago and developed this @openmiddle problem… which I still like, but it’s not quite the context I’m hoping for.https://t.co/qajpvSyrWl

— Annie Forest (@mrsforest) February 23, 2023

Some more new features of @Polyapd
Curriculum tags:All
https://twitter.com/davidporas/status/1626681867712794624

How does scaling a hexagon's side length impact the 4 animations on Polypad? What will stay the same? What will change?

Learn about these new features in the latest "What's New" video at https://t.co/oSXzdL2Bq4@MathigonOrg @desmosclassroom @Amplify #iteachmath #mtbos pic.twitter.com/JAzZnsIJLM

— David Poras (@davidporas) February 17, 2023

Video Links

I always appreciate a good visual proof
Curriculum Tags: MCR3U, MHF4U
https://twitter.com/howie_hua/status/1628557601419190273ccccccccc

Can you believe any random book can help us solve 1/3 + 1/9 + 1/27 + 1/81 + ...? Here's how! pic.twitter.com/CWBWibTx1y

— Howie Hua (@howie_hua) February 23, 2023

I love that he uses the identity property
Curriculum Tags: Gr7 Gr8
https://twitter.com/howie_hua/status/1628203663394226177

Have you ever wondered why "keep change flip" works? Here's why in 60 seconds. pic.twitter.com/zWq4PewjVU

— Howie Hua (@howie_hua) February 22, 2023

Image Links

A factorial issue
Curriculum Tags: MDM4U

𝗠𝗮𝘁𝗵𝗲𝗺𝗮𝘁𝗶𝗰𝗮𝗹 𝗖𝗼𝗶𝗻𝗰𝗶𝗱𝗲𝗻𝗰𝗲#math1089 #Math #Maths #Mathematics #coincidence #mathlove #mathgame #mathtutoring #mathteacher #mathematicians #mathstuition #mathstudent #Mathschallenge pic.twitter.com/tveNEeZOrj

— Math1089 (@Math1089_9801) February 18, 2023

    

Math Links for Week Ending Feb 17th, 2023

Featured Links

We just did some PD at my school board about ChatGPT. There are some people who are uneasy about it and others who embrace it. @DDMeyer has done some work in looking at what it can do for math and that's fine but the thing that intrigued me was the comment that reminded us that students, when asking questions, don't do a very good job of articulating themselves and so if they were trying to formulate a question to ask ChatGPT, it may not be able to figure out what they're asking. Anyway. Check out his post and by all means, check out the comments.
Curriculum Tags: All
https://danmeyer.substack.com/p/three-tests-ai-needs-to-pass-before

Yup - this is a huge chasm for AI to cross. "... the most important distinction between AI and a human teacher is that students don’t ask complete and intelligible questions all the time." A commenter on my recent newsletter.https://t.co/qKAykDDxrF

— Dan Meyer (@ddmeyer) February 10, 2023

Resource Links

Have you got a visual topic that you want to spice up? Why not try a black box approach? This Desmos example shows how to do it with intersecting lines
Curriculum Tags: MPM2D
https://www.desmos.com/calculator/n85lbfmtfw
https://www.instagram.com/p/CogKL_WMFON/

Today in #Room227https://t.co/4xEaIpPf5c@Desmos black box activity for solving systems.

Lots of creativity emerged as they tried to solve a few systems as necessary to prove their intersection.#MTBoS #iteachmath

— Nat Banting (@NatBanting) February 11, 2023

Video Links

When you want kids to practice something that might be tedious, then maybe infuse a puzzle with it. Like this one dealing with Pythagorean Theorem from @JamesTanton.
Curriculum Tags: Gr7, Gr8, MTH1W
https://www.youtube.com/watch?v=3EmDDhBg5Gw

And for another puzzle, How about this pattern based one? This is from @GamesByGord (with the props from @FawnPNguyen)
Curriculum Tags: All
https://www.youtube.com/watch?v=_eCEywYbbiI

Just lovely, Gordy.
Really appreciate the added footage of how you came up with the puzzle.
Gold: "I don't know what I'm doing here..." "This is failure..."
Your wish for play and beauty always comes through. Thank you so much for sharing! https://t.co/7dn339ztqk

— Fawn Nguyen (@fawnpnguyen) February 14, 2023

Image Links

Finally someTHING worth simplifying
Curriculum Tags: MTH1W, MPM2D
https://twitter.com/LongFormMath/status/1625196876164382720

Well that simplifies things pic.twitter.com/9kRY7b6ipd

— Jay Cummings (@LongFormMath) February 13, 2023