Math Links for Week Ending Dec 27, 2024

Featured Links

Given that next year, 2025, is the first perfect square year in a while, I think you may want to focus on the calculation 452 this coming year in as many ways as you can think of. 
Curriculum Tags: All
https://bsky.app/profile/geometiles.bsky.social/post/3lea5s4pxi22x

Resource Links

A less tedious way to look at factor trees
Curriculum Tags: Gr7, Gr8
https://mathequalslove.net/2025-factor-tree-puzzle/

Video Links

Hidden sinusoidal functions in nature
Curriculum Tags: MCR3U, MCF3M
https://www.reddit.com/r/oddlysatisfying/comments/28yiqk/the_sequence_of_the_sun/?rdt=53283

f(x) = sun(x). The sequence of the sun. [https://t.co/uuBMUJt5y6] pic.twitter.com/z046Gai04r

— Math Lady Hazel 🇦🇷 (@mathladyhazel) December 24, 2024

I like this because it focusses on why, not on memorizing some sort of formula
Curriculum Tags: MPM2D
https://bsky.app/profile/tbrzezinski.bsky.social/post/3ldovqhadts2i

Image Links

I don't like this sort of thing as a memory aid, however, I think it would be great for kids to come up with it on their own or prove that it's true
Curriculum Tags:
MPM2D, MFM2P, MCR3U, MCF3M, MBF3C
https://x.com/GeometryPuzzles/status/1872106172423274843

Easy to remember trigonometric ratios pic.twitter.com/hCahSOFlLb

— Math Lover (@GeometryPuzzles) December 26, 2024

A few more "Elf on the Shelf" parodies from @Howie_Hua
Curriculum Tags: All
https://x.com/howie_hua/status/1871646638818939170
https://bsky.app/profile/howiehua.bsky.social/post/3le5q2kbr522q

You've heard of elf on the shelf, now get ready for pic.twitter.com/fMfem9qgBO

— Howie Hua (@howie_hua) December 24, 2024

Something for your Calculus class
Curriclum Tags: MCV4U
https://x.com/memecrashes/status/1871359192575160440

pic.twitter.com/8xNBT95iW2

— A meme page to check every time MatLab crashes (@memecrashes) December 24, 2024

That classic order of operations internet meme as a Christmas meme
Curriculum Tags: MTH1W
https://x.com/pickover/status/1871762165021151691

This is a math meme by @howie_hua, Used with permission.

He writes: "Be on Santa's nice list by simply conveying what you mean mathematically clearly so we can stop having these PEMDAS arguments." pic.twitter.com/IjWZDQCYr5

— Cliff Pickover (@pickover) December 25, 2024

Something to use as a starter when dealing with Order of Operations
Curriculum Tags: All
https://bsky.app/profile/bot.cowtools.org/post/3le2fzrs6sh2v

Math Links for Week Ending Dec 20th, 2024

Featured Links

If you didn't use this this year, save it for next
Curriculum Tags: All
https://mathsedideas.blogspot.com/p/resources.html#xMathsCard

Teachers: Wish your students and their families a mathemagical xMaths with an xMaths card full of problems and curios. Two cards in various formats free to download and customise • https://t.co/PnuNqACc11 pic.twitter.com/AL67WZSufo

— Maths Ed (@MathsEdIdeas) December 18, 2024

Resource Links

This is great for physics class but also for some advanced math classes. Thanks @a_freeparticle
Curriculum Tags: MCR3U, MHF4U
https://afreeparticle.com/cart.html

I think it is the aperiodic shape that was my favourite
Curriculum Tags: All
https://www.scientificamerican.com/article/the-7-coolest-mathematical-discoveries-of-2024/

Video Links

How would you solve this question
Curriculum Tags: MCR3U, MHF4U
https://bsky.app/profile/howiehua.bsky.social/post/3ldk2opttts2n

Image Links

I've noted what I thought was the best version in the comments
Curriculum Tags: All
https://x.com/howie_hua/status/1869911106283811140

This might be a harder one 😬

You've heard of elf on the shelf but have you heard of pic.twitter.com/o8PXXR6f5N

— Howie Hua (@howie_hua) December 20, 2024

For doing statistics
Curriculum Tags: All
https://bsky.app/profile/howiehua.bsky.social/post/3ldhlos4svk2r

I think there are a couple that work here

Curriculum Tags: MCR3U, MCF3M, MHF4U

https://x.com/howie_hua/status/1869513167925391773

You've heard of elf on the shelf but have you heard of pic.twitter.com/vkc0icGDKM

— Howie Hua (@howie_hua) December 18, 2024

Some algebra for your geometry
Curriculum Tags: MTH1W

https://x.com/GeometryPuzzles/status/1869570853605953713

How to solve this #angle #geometry pic.twitter.com/coKdrKjUy4

— Math Lover (@GeometryPuzzles) December 19, 2024

Seems True
Curriculum Tags: MDM4U

https://bsky.app/profile/spalm.bsky.social/post/3ldq6ay4dbc2h

Some Christmas graphs
Curriculum Tags: All

https://x.com/MrValencia24/status/1866430289528123562

What’s your favorite #ChristmasTree? 🤔🎄 #MathPlay🧮#CodeBreaker🦾 #ITeachMath #MTBoS #MathArt #MathIsFun #Math #Maths #EdChat #STEM #Christmas pic.twitter.com/pdMJvd3zS6

— Libo Valencia 🧮 MathPlay (@MrValencia24) December 10, 2024

Math Links for week Ending Dec. 13th, 2024

Featured Links

There are some good comments in the feed and I like the way the steps are laid out for adding integers but the line that resonates with me is the last part of this: "Get students really comfortable placing positive and negative numbers on number lines. Don't take this for granted"
Curriculum Tags: All
https://fivetwelvethirteen.substack.com/p/conceptual-understanding-doesnt-happen

Resource Links

The idea that there is a "best way" to teach kids has never resonated with me. There are ways for that resonate best for me but they aren't always better for students. 
Curriculum Tags: All
https://amiealbrecht.com/2024/12/11/four-ways-of-seeing-education-and-why-best-practice-is-a-myth/

A good winter starter
Curriculum Tags: All
https://bsky.app/profile/davidporas.bsky.social/post/3lcy6ln4y6k2n

I love Fermi Problems and so this mashup with Desmos seems like a perfect pairing
Curriculum Tags: All
https://bsky.app/profile/kasmith07.bsky.social/post/3lcwam62jek2m

Some Christmas math fun
Curriculum Tags: Gr7, Gr8, MTH1W
https://mathequalslove.net/christmas-tree-integer-addition-puzzles/

So many of you requested an integer version of these Christmas Tree Addition Puzzles that I had to make it happen! https://t.co/T1mTZFP81I #mtbos #iteachmath #puzzlingclassroom pic.twitter.com/hXGuoDjwLY

— Sarah Carter (@mathequalslove) December 8, 2024

Video Links

Some Christmas probability 
Curriculum Tags: MDM4U
https://bsky.app/profile/howiehua.bsky.social/post/3lcyn6rmsxs2y

When I looked at this I thought I would just start with a brute force method but after one calculation it was clear I should look at something more logical. And yes, it was a non intuitive result but it made sense. 
Curriculum Tags: Gr7, Gr8, MTH1W
https://x.com/howie_hua/status/1867334829991506197

Will this answer surprise you? Or is it intuitive? pic.twitter.com/EtBL37wODW

— Howie Hua (@howie_hua) December 12, 2024

Image Links

Some of these are the same area but are they all the same area?
Curriculum Tags: Gr7, Gr8, MTH1W
https://bsky.app/profile/profsmudge.bsky.social/post/3ld6iydz77c2y

I love a cross curricular post
Curriculum Tags: MCR3U, MHF4U, MAP4C, MCT4U
https://bsky.app/profile/kityates.bsky.social/post/3lcwrjevf4d2q

Math Links for Week Ending Dec 6th, 2024

Featured Links

I am a big fan of rethinking traditional assessment methods. Even small tweaks in what you do can make assessment more fair for student. Here are some ideas that might get your interest
Curriculum Tags: All
https://www.edutopia.org/article/why-teachers-should-grade-less-frequently

Resource Links

Here is the classic December NCTM calendar
Curriculum Tags: All
https://karendcampe.wordpress.com/2024/12/01/december-calendar-problems-3/

Here is a neat applet that can help visualize multiplcations of different types from @Knowledgehook
Curriculum Tags: All
https://manipulatives.knowledgehook.com/multiplicationgrid/

Here are some neat fractions activities from a blog who's name I love, SatisFraction
Curriculum Tags: Gr7, Gr8, MTH1W
https://satisfry.blogspot.com/

Video/Audio Links

Listen to our latest podcast
Curriculum Tags: All
https://talks.oame.on.ca/season-7

[New Podcast] This episode features@livelovemath314 previewing their Dec 11th @OAMEcounts webinar "Math Without Worksheets". More info: https://t.co/95KyY9ZtpW #mathchat #MTBoS #iTeachMath pic.twitter.com/PoqFierjzQ

— OAMEtalks (@OAMEtalks) December 1, 2024

Use geometric methods to discuss an optical illusion
Curriculum Tags: MTH1W
https://bsky.app/profile/tbrzezinski.bsky.social/post/3lc3n4cxjw22b

I have always loved this puzzle. I like how you can use slope to prove how it works
Curriculum Tags: MTH1W
https://bsky.app/profile/tbrzezinski.bsky.social/post/3lbwjq3e2fs23

Here is a nice twist on Which One Doesn't Belong that encourages student dialogue.
Curriculum Tags: All
https://bsky.app/profile/howiehua.bsky.social/post/3lcbduvyivc2r

Flexible thinking at it's finest
Curriculum Tags: All
https://bsky.app/profile/saravanderwerf.bsky.social/post/3lcjoyxkgsk2c

I am not a fan of mathematical tricks but I always like how @Howie_Hua explains why they work
Curriculum Tags: All
https://bsky.app/profile/howiehua.bsky.social/post/3lcjl2fj2o22z

Get your triangle geometry puzzler warmed up
Curriculum Tags: MTH1W
https://x.com/howie_hua/status/1862541860440564223

A fun math puzzle pic.twitter.com/R1nQjIrpit

— Howie Hua (@howie_hua) November 29, 2024

I like this "impossible" problem for algebra
Curriculum Tags: MTH1W
https://x.com/howie_hua/status/1864073876319195452

Why is this rectangle impossible? (Thanks to @StudyMaths for the problem) pic.twitter.com/jBPNa9m9pQ

— Howie Hua (@howie_hua) December 3, 2024

Image Links

I think @Howie_Hua sums up what I think about these types of questions. Don't get me wrong, I think they are great. But they also show students that algebra doesn't have to be as hard as it seams.
Curriculum Tags: All
https://bsky.app/profile/afreeparticle.com/post/3lcjn5cqawc2r

Solving Equations? Try this
Curriculum Tags: MTH1W
https://x.com/pickover/status/1862852451981758578

Mathematics. Nothing but x's.

I wonder what is the value of x (aside from x = 0)? pic.twitter.com/RAGEODkGxU

— Cliff Pickover (@pickover) November 30, 2024

Where does all that plastic go?
Curriculum Tags: Gr7, Gr8, MDM4U
https://x.com/infobeautiful/status/1862525740304007255

Guess what % of plastics have been #recycled? No prizes :( pic.twitter.com/YgCP4LQPJj

— Information is Beautiful (@infobeautiful) November 29, 2024

Doing some work with diameters and radii? Try this
Curriculum Tags: Gr7, Gr8
https://x.com/GeometryPuzzles/status/1862559318039830899

Geometry challenge #geometry pic.twitter.com/aScNUc5CsV

— Math Lover (@GeometryPuzzles) November 29, 2024

I have not heard of a Gollygone before but this might be a good starter in a high school math class
Curriculum Tags: All
https://x.com/pickover/status/1862563740849246217

Mathematics.

Don't you just love Golygons? A "Golygon" is any polygon with all right angles (a rectilinear polygon) whose sides are consecutive integer lengths.

The smallest Golygon (below) has 8 sides. It's the only solution with fewer than 16 sides. https://t.co/LBKXsGKEsM pic.twitter.com/wjKoL5ENzI

— Cliff Pickover (@pickover) November 29, 2024