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

Math Links for Week Ending Feb 10th, 2023

Featured Links

Looking for a new person to follow on Twitter when it comes to math? Then I suggest you check out the comments on this post for a pile of Ontario math educators that you may (or may not) have heard of
Curriculum Tags: All
https://twitter.com/GLewisOCT/status/1621527253883518976

I've never tried this before, but I'd like to celebrate Ontario #Math Educators for #FollowFriday! Drop the handles of inspirational, thought-provoking, equity-seeking individuals/departments from #OntEd #mtbos #mathchat.@davidpetro314@Jason_To@CathyMarksKrpan@aledaklassen

— Gerard Lewis, OCT (@GLewisOCT) February 3, 2023

Reasource Links

This just proves that even though the concept of perimeter may be relatively straightforward, there are definitely problems you can ask that turn perimeter into a thinking problem. Definitely look at the comment section for some sample solutions and other resources.
Curriculum Tags: All
https://twitter.com/Mathgarden/status/1618969850013155331

If you know the answer, please don't share your answer/insight...yet. Some nice conceptual understanding--and flexible thinking:) pic.twitter.com/aUyT4p3J9q

— Sunil Singh (@Mathgarden) January 27, 2023

I think that the thing I like the most about the "Same & Different" strategy is that regardless of a student's ability, they can usually notice something and participate. Even if it is of a non mathematical nature, that engagement is worth the price of admission. Plus there are examples here that you could find something for just about any high school math class

Curriculum Tags: All
https://twitter.com/KarenCampe/status/1622230242201829376

ICYMI, week in review part 1:
New blog post with 25+ #HSmath prompts using Same & Different thinking strategy for class opener, discussion, review: #MTBoS #iTeachMath #T3Learnshttps://t.co/dwlShJmvSp

— Karen Campe (@KarenCampe) February 5, 2023

Video/Audio Links

I'm not going to lie, it never occured to me that being able to "break" an algebra tile was a thing I might desire to do. But having virtual tiles means it totally is something you can do with the right tool and it seems Polypad is that tool
Curriculum Tags: All

The latest Polypad update includes the ability to split algebra tiles! Here's one way to use this feature. What are some of your ideas?

Learn more about all our latest updates at https://t.co/eiaDWYeYqr@MathigonOrg @desmosclassroom @Amplify #iteachmath #mtbos pic.twitter.com/jv27ExT4uR

— David Poras (@davidporas) February 2, 2023

We asked the featured and keynote speakers for the upcoming #OAME2023 conference, what they remember their own teachers doing that they either do now as a teacher or don't do now as a teacher. I think there were some obvious ones in the don't do category (eg timed tests) but it's always interesting to hear what innovative ideas that were on the "continue to do" side
Curriculum Tags: All
https://twitter.com/OAMEtalks/status/1622795563753168896

[NewPodcast] #OAME2023 feat.&key speakers say what they do (or don't do) in class that their teachers did. Listen here https://t.co/bJzj90sdCx

More conference info at https://t.co/E8sd8DjNoZ#MathChat #MTBoS #iTeachMath@CathyMarksKrpan @HKhodai @lindsayanngold @MrsShantelClark pic.twitter.com/56NvFNbNDi

— OAMEtalks (@OAMEtalks) February 7, 2023

Image Links

Given that there is a strategy "same & different" above then it might then maybe you might want your students to apply it to this bit of numeric fun. 
Curriculum Tags: All
https://twitter.com/pickover/status/1624082649978478593

Mathematics. Diversity of symbols.

The digits 0 through 9 — a sampling of various scripts. https://t.co/giXy6nPpJs pic.twitter.com/sGaBZmwRtR

— Cliff Pickover (@pickover) February 10, 2023

Math Links for Week Ending Feb. 3rd, 2023

Featured Links

Once again I'm gonna feature the #OAME2023 conference. This year's conference is the first face to face version since 2019 and will be held in Toronto. That being said, this is a preview of the featured and keynote speakers from day two. That's just a sampling of the speakers available but it at least gives you a taste. You can get more details at oame2023.ca and listen below:
Curriculum Tags: All
https://talks.oame.on.ca/season-5

[New Podcast] It's the #OAME2023 Day 2 preview. Featuring @Heather_Wark_ @CathyMarksKrpan @RG1gal @MrMeliLCI @Jason_To @rjdurocher @MrsShantelClark

Listen here:https://t.co/bJzj90sLs5

Check out all the conference info at https://t.co/E8sd8Dklex#MathChat #MTBoS #iTeachMath pic.twitter.com/Z8vXC2PSSd

— OAMEtalks (@OAMEtalks) January 31, 2023

Resource Links

Do you agree that these are the only probabilities that humans understand? Perhaps a good classroom discussion
Curriculum Tags: MDM4U
https://twitter.com/JohnAllenPaulos/status/1620470320573612032

Maybe only three: sure thing, 50-50, and impossible. https://t.co/aO7lmjTvUr

— John Allen Paulos (@JohnAllenPaulos) January 31, 2023

I've always thought that "playing dumb" was a reasonably good strategy in class and this "oops, I forgot" could be a similar kind of strategy. 
Curriculum Tags: MTH1W
https://twitter.com/TheErickLee/status/1620104105711796224

Trying out a graphing story using "Oops, I forgot" #OIFMath and a template from @NatBanting. #ITeachMathhttps://t.co/pkSGD10VIF pic.twitter.com/WYpgemwKuN

— Erick Lee HRCE Math (@TheErickLee) January 30, 2023

I've always liked the ability to curve straight segments in Geogebra. It sure makes the meaning of Pi clearer. 
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/TimBrzezinski/status/1619674593039630341

True meaning of π : https://t.co/y5rBfHsugM & https://t.co/d6676ypne0 & https://t.co/fLgNfBnDa2. @geogebra #MTBoS #ITeachMath #geometry #math #mathchat pic.twitter.com/wTIfIbIi9U

— Tim Brzezinski (@TimBrzezinski) January 29, 2023

Here's the Feb classic NCTM calendar
Curriculum Tags: All

https://karendcampe.wordpress.com/2023/02/04/february-calendar-problems/

New Blog Post! "February Calendar Problems"
Happy solving! #MTBoS #iTeachMath #ProblemSolving https://t.co/iNVjiQ3sbD

— Karen Campe (@KarenCampe) February 4, 2023

Video Links

The most complex shapes can be described algebraically by Fourier transforms. Here's a cool one. 
Curriculum Tags: MHF4U, MCV4U
https://twitter.com/mathladyhazel/status/1619913091084345345

Beauty of math, Fourier transforms. 😍 [https://t.co/IgHSNxfQQU] pic.twitter.com/5L6k84AVg3

— Math Lady Hazel 🇦🇷 (@mathladyhazel) January 30, 2023

I have not seen this explanation before
Curriculum Tags: Gr7, Gr8
https://twitter.com/howie_hua/status/1619416409720889345

Why does a negative times a negative equal a positive? pic.twitter.com/rq5E8Joc3B

— Howie Hua (@howie_hua) January 28, 2023

Image Links

Some math and physics humour
Curriculum Tags: All
https://twitter.com/Rainmaker1973/status/1619393518442782721

This requires you to be a nerd, but yet...

[source: https://t.co/Hr2KLYwrIx]#SaturdayFun pic.twitter.com/kkGpApEYUK

— Massimo (@Rainmaker1973) January 28, 2023

Some square root humour
Curriculum Tags: Gr7, Gr8
https://twitter.com/sonukg4india/status/1619554630312284160

#math #meme pic.twitter.com/4jpmQi7AcV

— SKG (@sonukg4india) January 29, 2023

Whether you are working with multiplication and division or just in need of a good math starter for your senior math classes, this might do the trick
Curriculum Tags: All
https://twitter.com/jamestanton/status/1620013453015400448

Two numbers, each with the same number of digits, each begin with a 7. Can the product of the two digits also begin with a 7?
Which digits can appear as a first digit in such a product? pic.twitter.com/1ECeTB7ifA

— James Tanton (@jamestanton) January 30, 2023

Something for your Calculus students
Curriculum Tags: MCV4U
https://twitter.com/sonukg4india/status/1619344879150317568

#math meme pic.twitter.com/22E1cwYocC

— SKG (@sonukg4india) January 28, 2023