Friday, February 14, 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/

Take advantage of valentines candy to explore exponential models with your students! Check out "I ❤️ Candy Math" for Valentine's Day this week! #MTBoS #iTeachMath #MathSky #MathsToday karendcampe.wordpress.com/2022/02/10/i...

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— Karen Campe (@karencampe.bsky.social) February 8, 2025 at 9:20 AM
Some resources for teaching logs
Curriculum Tags: MHF4U
https://timcorica.substack.com/p/logarithms-some-teaching-ideas

#iTeachMath #MathsToday Someone posted a request for ideas for livening up a unit on logarithms, so I did a brain dump of 45 years of teaching, and posted it on my substack: open.substack.com/pub/timcoric...

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— Tim Corica (@tcorica.bsky.social) February 9, 2025 at 10:34 AM
A nice real world problem dealing with the value of a penny.
Curriculum Tags: MTH1W
https://www.citizenmath.com/lessons/common-cents

Should we nix the penny? ๐Ÿ’ฐ #EduSky ๐ŸŽ: Will you comment ideas and resources to explore this question as a class -- or on your own! -- so we can create one BIG thread ๐Ÿงต on this #RealWorldMath? ๐ŸŒ We'll go first. You add on and repost...๐Ÿ‘‡ #MathSky #ITeachMath #PBL www.citizenmath.com/lessons/comm...

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— Citizen Math (@citizenmath.bsky.social) February 10, 2025 at 2:50 PM

Video/Audio Links

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

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

Made with love (and equations). ๐Ÿ’• ๐Ÿ’Œ Explore the graph, and personalize your own to share: www.desmos.com/calculator/y... #mathsky #iteachmath

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— Desmos Studio (@desmos.com) February 13, 2025 at 9:14 AM

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

Perfect when you are talking about order of operations
Curriculum Tags: Gr8, MTH1W
https://bsky.app/profile/natbanting.bsky.social/post/3li3lhddgz22g

These make me smirk every time. (Side quest: if someone answers “48,” what led them to that conviction?)

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— Nat Banting (@natbanting.bsky.social) February 13, 2025 at 4:00 PM

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Friday, February 7, 2025

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
            

Resource Links

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

February Calendar of #ProblemSolvong is posted! Try some #RecreationalMath & share thoughts here or on the blog. Plus BONUS content article: "13 Rules That Expire" Enjoy! Consider subscribing so never miss a post. #MTBoS #iTeachMath #MathSky #MathsToday karendcampe.wordpress.com/2025/02/01/f...

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— Karen Campe (@karencampe.bsky.social) February 2, 2025 at 9:41 AM

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

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

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

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

Connecting art and math
Curriculum Tags: All


Image Links

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

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

#mathcomic from our friend @billamend.bsky.social foxtrot.com/2025/02/02/s...?

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— John Golden (@johngolden.bsky.social) February 2, 2025 at 10:00 AM
Different forms of the same data
Curriculum Tags: MDM4U
https://bsky.app/profile/abiruiz.bsky.social/post/3lh7i3w2zik2l

Love this visualization of data at different stages. (Via Monica Rosales Ascencio)

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— Abi Ruiz (@abiruiz.bsky.social) February 2, 2025 at 11:46 AM
More math and art
Curriculum Tags: All
https://bsky.app/profile/3n1gm4th.bsky.social/post/3lhkyhffew22p

Louvre Pyramid Located: Paris, France. Completed: 1989. Architect: I. M. Pei. #3n1gm4th #math #architecture

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— 3N1GM4TH (@3n1gm4th.bsky.social) February 7, 2025 at 1:38 AM
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Friday, January 31, 2025

Math Links for Week Ending Jan 31, 2025

Featured Links

A book study for the book "Making Math Stick" is starting this week. 
Curriculum Tags: All
https://oame.on.ca/mcis/index.php

Resource Links

Some resources from @MathsJem. Some Geometry and algebra and more. I really like the one with different (related) expressions that asks students to read to each other to guess the expression.
Curriculum Tags: All
https://www.resourceaholic.com/2025/01/5-maths-gems-185.html


I use this type of example when talking about expected value with my students. That is, the idea of how the insurance industry uses expected value to figure out how to set premiums. 
Curriculum Tags: MDM4U

Here's a fun little activity for learning about ratios.
Curriculum Tags: Gr8, MTH1W
https://robertkaplinsky.com/work/how-much-bigger-should-they-make-zoolanders-school/

I totally appreciate all the work that would have gone into these interactives for practicing dealing with mixed radicals and linear inequalities.
Curriculum Tags: MTH1W, MPM2D
https://bsky.app/profile/imperfectsquare.com/post/3lgsq6gl3bk2k

Solving inequalities (with negative coefficients) version of the Valentine's activity. tiny.cc/ineqvalentines. Available for anyone to use, along with printable worksheet. Simplifying radicals version at tiny.cc/radvalentines. #iteachmath #mtbos #algebra #prealgebra #edusky #mathsky

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— Sarah Shartzer (@imperfectsquare.com) January 28, 2025 at 10:06 AM
I love what I call Equation Strips or Bar Models but they are also know as Tape Diagrams. Here are links to my resources and a whole site relating to them
Curriculum Tags: Gr7, Gr8, MTH1W
https://bsky.app/profile/davidpetro314.bsky.social/post/3lgsxw7omhc2o

I have always called these equation strips but I love that he includes a link to more stuff Https://bit.ly/TapeDiagramTuesday I also have some of my own including an interactive applet & @Desmos.com Classroom activity here engaging-math.blogspot.com/search/label... #iTeachMath #MathChat #MTBoS

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— DavidPetro314 (@davidpetro314.bsky.social) January 28, 2025 at 12:24 PM
The Superbowl is coming up and so you might like this activity that uses sports betting probabilities as a real world example. And if you want to take it a step further, this podcast series on sports betting shows why you shouldn't (ie the odds and other things are stacked against you). 
Curriculum Tags: MDM4U
https://teacher.desmos.com/activitybuilder/custom/61f847b4990b4d76d1b6a5e4

I think this would pair very nicely with the latest Against the Rules podcast where the latest season is about the sports betting industry and *spoiler alert* the odds are stacked against the betters-high school betting is where it starts www.pushkin.fm/podcasts/aga... #MathChat #iTeachMath #MTBoS

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— DavidPetro314 (@davidpetro314.bsky.social) January 28, 2025 at 10:01 PM

Video Links

I have always loved the Sieve of Eratosthenes (even though I can rarely pronounce it)
Curriculum Tags: MTH1W
https://x.com/howie_hua/status/1883285081663701333

I used to watch the show Numbers years ago where a mathematician solved crimes. That being said, I didn't know that this new show Prime Target was also about a mathematician, this time trying to save the world with prime numbers (literally). And this substack breaks each episode down. 
Curriculum Tags: All
https://bsky.app/profile/tcorica.bsky.social/post/3lgv2lsxgc22b

Prime Target Ep.3 drops today. To catch up on the mathematics in Ep.1 and Ep.2, drop by here: timcorica.substack.com/p/prime-targ... #PrimeTarget #MathsToday #iTeachMath

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— Tim Corica (@tcorica.bsky.social) January 29, 2025 at 8:18 AM

Some real world calculus for you
Curriculum Tags: MCV4U
https://bsky.app/profile/mathmatize.bsky.social/post/3lgv6ssix3k2c

When the slide is continuous but not differentiable #MathSky

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— MathMatize Memes (@mathmatize.bsky.social) January 29, 2025 at 9:33 AM

Image Links

What math questions would you come up with?
Curriculum Tags: All
https://bsky.app/profile/gregbcurran.bsky.social/post/3lgjfbjdzzs25

Love this Maths provocation #iTeachMath

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— Dr Greg Curran (@gregbcurran.bsky.social) January 24, 2025 at 4:57 PM


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Friday, January 24, 2025

Math Links for Week Ending Jan 24th, 2025

Featured Links

A free webinar on computational thinking looks like a great opportunity to learn
Curriculum Tags: All
https://mikeflynn.lpages.co/microburst/

Come learn alongside us! Free registration here: bit.ly/microburst130 We can’t wait to join you there. #math #mathclass #matheducation

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— Zak Champagne (@zakchamp.bsky.social) January 24, 2025 at 5:27 PM

Resource Links

I agree with @DavidKButler, that proofs without words are not without effort
Curriculum Tags: Gr8, MTH1W
https://bsky.app/profile/davidkbutler.bsky.social/post/3lg7j3ihe222d

This is the first time I have seen anyone ever articulate up front that Proofs Without Words require the reader to put in effort. Seriously it needs to be much clearer on the box that they are actually Proofs That Need You To Add Words.

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— David K Butler (@davidkbutler.bsky.social) January 20, 2025 at 6:38 PM

Video Links

I'm sure you can use this to talk about transformations, recursion and scaling (and maybe other topics) with this video.
Curriculum Tags: All
https://x.com/gregeganSF/status/1880176485677560200

I never get tired of this animation to show where the area of a circle formula comes from. You can also use it in Calculus when talking about thinner and thinner slices. 
Curriculum Tags: Gr7, Gr8, MCV4U
https://x.com/mathladyhazel/status/1880470241601622391

Perfect for the binomial theorem
Curriculum Tags: MDM4U
https://x.com/mathladyhazel/status/1881438549490180292


Image Links

I don't know why I love these power and exponent type questions. 
Curriculum Tags: MTH1W, MPM2D, MCR3U
https://x.com/GeometryPuzzles/status/1881033853508452360


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Friday, January 17, 2025

Math Links for Week Ending Jan 17th, 2025

Featured Links

Some great free resources from @doingmath
Curriculum Tags: All
https://www.math-that-matters.com/

In my 15 years working with districts to help make high school mathematics JOYFUL, MEANINGFUL, and EQUITABLE, I have found quality curriculum can have a tremendous impact. So, I've been working to make such curriculum freely available: www.math-that-matters.com #mtbos #iteachmath #edusky

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— Bryan Meyer (@doingmath.bsky.social) January 14, 2025 at 2:17 PM


Resource Links

It's always good to see real world connections to math
Curriculum Tags: All
https://www.popsci.com/science/rockettes-choreography-math/

Holiday math! ๐ŸŽ„๐Ÿ’ƒ๐Ÿป www.popsci.com/science/rock...

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— Annie Forest (@annieforest.bsky.social) December 11, 2024 at 8:25 AM

And here's some great connections to the real world with mathematical modelling 
Curriculum Tags: All
https://www.comap.com/blog/item/math-modeling-examples

๐Ÿง  Mathematical modeling is a powerful way to tackle complex, real-world challenges. From predicting weather patterns to optimizing supply chains, it’s a game-changer across industries! ๐Ÿ‘‰ Check it. out: https://buff.ly/498hykr #MathModel #STEM #MathEducation #MathTeacher

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— COMAP Math (@comapmath.bsky.social) January 13, 2025 at 6:50 AM

Video Links

Some times those who don't think they can do math need extra convincing
Curriculum Tags: All
https://bsky.app/profile/howiehua.bsky.social/post/3lfg342u7js2x

Watch this video if you don't like math #math #ITeachMath #EduSky youtube.com/shorts/LWhaV...

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— Howie Hua (@howiehua.bsky.social) January 10, 2025 at 3:52 PM

Image Links

I like the colour coding on this Trig primer
Curriculum Tags: MPM2D, MFM2P, MCR3U, MCF3M, MBF3C
https://x.com/mathladyhazel/status/1880103119968956927


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Friday, January 10, 2025

Math Links for Week Ending Jan 10th, 2025

Featured Links

Though I would say that in more recent years I have steered away from always telling, I love how this really outlines different ways to "tell" and reminding you that there really isn't a dichotomy between telling and not telling. I think that this really sums up the gist of the post but read on for more "Some advocate “Never say anything a kid can say!”, pushing back against traditional transmission models. Others urge teachers to “Just tell them”, emphasising the power of clear explanations. These opposing directives leave teachers caught between conflicting orthodoxies. In reality, teaching requires both explanation and exploration" 
Curriculum Tags: All
https://amiealbrecht.com/2025/01/01/stop-asking-if-we-should-tell-and-start-asking-how/

Happy New Year! And a new blog post as a treat (a week earlier than planned). NEW Blog Post: ‘Stop asking if we should tell and start asking how’ Why does telling remain such a charged issue in mathematics teaching? Reframing telling through its functions rather than its form offers a way forward.

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— Amie Albrecht (@nomadpenguin.bsky.social) December 31, 2024 at 11:22 PM

Resource Links

I love the simplicity and cleverness of @TriangleManCSD's books. Here's the latest
Curriculum Tags: All 
https://x.com/Trianglemancsd/status/1876314707789054293

I love the comparison of various geometry apps here. Well done
Curriculum Tags: All
https://karendcampe.wordpress.com/2025/01/03/go-for-geometry/

Video Links

I like this because it reinforces the idea that mathematicians are not necessarily those who are the "best" at doing math but they are those who persevere when things get hard. 
Curriculum Tags: All
https://bsky.app/profile/courtneygibbons.phd/post/3leiav6d3is2p

Back on Twitter, my most viewed tweet was a link to my "math pep talk"—a video I made for my students that now has 23K views ๐Ÿ‘€ m.youtube.com/watch?v=kenf... There's a lot to expand on in that video, like structural barriers to success in math. But I'm sharing it again anyway. #MTBoS

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— Dr. Courtney Gibbons (she/her) (@courtneygibbons.phd) December 29, 2024 at 7:15 PM

Image Links

I love how this looks like it might be difficult but careful scrutiny can lead you to the correct solution.
Curriculum Tags: MPM2D, MCR3U
https://x.com/GeometryPuzzles/status/1875632520278200415



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Friday, January 3, 2025

Math Links for week Ending Jan 3, 2024

Featured Links

This is exactly how it used to be on Twitter. It's good to see that the math community is alive and well here. Check out all the great links shared in the comments.
Curriculum Tags: All
https://bsky.app/profile/druinok.bsky.social/post/3lerifa34yk2n

Math friends.. any suggestions for a good video on Sierpinski's triangle? My next chapter is similarity and thought that would be a good Monday activity after break. #mathsky #iteachmath #mtbos

— druinok (@druinok.bsky.social) January 2, 2025 at 11:23 AM

Resource Links

I am always looking for ways to relate the mathematics we teach to things that occur in the real world
Curriculum Tags: MCR3U
https://bsky.app/profile/davidpetro314.bsky.social/post/3leudxtgmwk23

Need an application of the Law of Sines to talk about with your students? How about the construction of the @spherevegas.bsky.social ? Thanks to @standupmaths.bsky.social for pointing this out in his new book "Love Triangle" www.thesphere.com/science #MathChat #iTeachMath #MTBoS

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— DavidPetro314 (@davidpetro314.bsky.social) January 3, 2025 at 2:42 PM
Some algebra, some geometry and many other topics. Take a look
Curriculum Tags: All
https://www.resourceaholic.com/2025/01/5-maths-gems-184.html

New! My 184th gems post. Ideas, updates and resources for maths teachers. ๐Ÿ’Ž www.resourceaholic.com/2025/01/5-ma... #UKMathsChat #MathsToday

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— Jo Morgan (@mathsjem.bsky.social) January 2, 2025 at 12:28 PM

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

Happy New Year! Enjoy the January #ProblemSolving Calendar! Share your process here or on post. Also: BONUS article-teaching strategies for success in #math. Sign up to get an email for new posts ✅ #MTBoS #iTeachMath #MathSky #RecreationalMath #MathsToday karendcampe.wordpress.com/2025/01/01/j...

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— Karen Campe (@karencampe.bsky.social) January 1, 2025 at 10:32 AM
I highly recommend the (slow) elementary math chat if you are up for it. 
Curriculum Tags: All
https://bsky.app/profile/r-cilr.bsky.social/post/3lecw2x2t6s2s

#EduChatList - Live & Slow Education Chats *Posted 12.27.24 #SunChat #YouthMade #Rethink_Learning #EdTechChat #TLAP #EduSkyChat #TheEdCollab #TLSkyChat #CodeBreaker #LevelUpEdu #EduSkyAI #ElemMathChat #PD4UAndMe #LeadLAP #BFC530 #UngradingChat #ELSky #WhyEdifyReview

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— Rebecca ๐ŸŒท (@r-cilr.bsky.social) December 27, 2024 at 4:18 PM
This is a neat little problem that you might want to try when talking about types of numbers, if only to do some brute force solutions or to try to code some checks. 
Curriculum Tags: MTH1W
https://bsky.app/profile/benjamindickman.bsky.social/post/3ledrbj2edk2v




The 1st day of the new year has passed but you can still have fun with this
Curriculum Tags: All




Video/Audio Links

A great problem when discussing the idea of average in a deeper way.
Curriculum Tags: MDM4U
https://bsky.app/profile/howiehua.bsky.social/post/3leovyr67ik25

A fun math puzzle: Town A and Town B are 30 miles apart. If you drove 30mph from Town A to Town B, how fast do you need to drive going back to have an overall average speed of 60mph? #math #ITeachMath #EduSky #MathSky youtube.com/shorts/0w_yQ...

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— Howie Hua (@howiehua.bsky.social) January 1, 2025 at 10:49 AM

Lots of math around the number 2025
Curriculum Tags: All
https://bsky.app/profile/howiehua.bsky.social/post/3lehbx7o54k2q

2025 is going to be a really square year, and also be on the lookout for this specific square date! #math #ITeachMath #EduSky youtube.com/shorts/CEZ6B...

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— Howie Hua (@howiehua.bsky.social) December 29, 2024 at 10:02 AM
I love this proof of the area of a circle
Curriculum Tags: Gr8, MTH1W

Best way to arrange frozen pizza ๐Ÿ• in the oven. And how to find the area of a circle: youtube.com/shorts/xlumX... #MTBoS #ITeachMath #edusky

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— Tim Brzezinski (@tbrzezinski.bsky.social) December 28, 2024 at 12:21 PM

A fun geometry video
Curriculum Tags: All
https://x.com/pickover/status/1874569819561091241

Are you participating in Genuary?
Curriculum Tags: All
https://x.com/LukeSelfwalker/status/1874502239446085726

The latest OAMEtalks podcast features @LLB_315 with a preview of her members only webinar but don't let that stop you, there are some great resources that she talks about. 
Curriculum Tags: All
https://talks.oame.on.ca/season-7



A nice visualization (plus source code)
Curriculum Tags: All
https://x.com/panlepan/status/1874107178094911746

I don't try to be political here but I still think this is funny. Math to the rescue
Curriculum Tags: All
https://x.com/samtripoli/status/1874141752145396084


Image Links

Perfect if you are talking about exponential relationships (you might have to talk a bit about why a black hole is a black hole though - hint you are going to be talking about super dense objects)
Curriculum Tags: MCR3U, MCF3M, MAP4C
https://xkcd.com/3033/

Origami Black Hole xkcd.com/3033

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— Randall Munroe (@xkcd.com) January 3, 2025 at 2:02 PM
A challenge for proving triangles are congruent
Curriculum Tags: Gr8
https://bsky.app/profile/profsmudge.bsky.social/post/3letlcwyu2k2t

Tri-ing....

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— ProfSmudge (@profsmudge.bsky.social) January 3, 2025 at 7:21 AM
Who doesn't like a good rates of change joke?
Curriculum Tags: MCV4U
https://xkcd.com/2974/

Storage Tanks xkcd.com/2974

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— Randall Munroe (@xkcd.com) August 20, 2024 at 8:22 AM
Lots more 2025 math
Curriculum Tags: All
https://x.com/ElterEric/status/1874554980109336796

So many resources for 2025
Curriculum Tags: All
https://x.com/fawnpnguyen/status/1874205423278146042

A problem that may not be as hard as it looks
Curriculum Tags: MTH1W
https://x.com/GeometryPuzzles/status/1873564341624262664

You can find data anywhere
Curriculum Tags: MDM4U
https://x.com/simongerman600/status/1873805258649989610

I call this the bathingsuit problem :-)
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