Math Links for Week Ending Nov 24th, 2023

Featured Links

There is not quite 180 there yet but well on the way. Lots of familiar names and resources in this list already
Curriculum Tags: All
https://docs.google.com/presentation/d/1AsFjq7pHfv8JroxeN1XN6gelgUjhWtVWpFneFwnSoic/edit#slide=id.g25e0ab12eca_0_206

Update: "180 Days of Math Tasks" is my collection of curated math tasks from resources around the web - organized on a Google Slides deck. I just completed task #100 - so only 80 more to go! Thank you to all of these incredible math websites. Find it here: https://t.co/BAJO38ERLi

— Dan Shuster (@DanShuster) November 21, 2023

Resource Links

I have always liked @JoelBezaire's Story Time Math Desmos activities too
Curriculum Tags: Gr8, MTH1W
https://twitter.com/TheErickLee/status/1726672986806386727

A storm was brewing over the weekend and I needed batteries for my flashlight... next thing you know I had a @desmosclassrom unit price adventure on my hands. A mostly true story in the style of a @joelbezaire "Storytime" activity. #ITeachMath https://t.co/EYsYZUSfJR pic.twitter.com/5cZedylh3X

— Erick Lee HRCE Math (@TheErickLee) November 20, 2023

Hey, time to make your Desmos musical instruments
Curriculum Tags: All
https://twitter.com/MrCorleyMath/status/1725506673698103323

@desmos snuck in a new feature (TONE) in their recent post about the next GLOBAL MATH ART CONTEST. Check out more about TONE here:https://t.co/YUGtNoaY77#iteachmath

— Nick Corley (@MrCorleyMath) November 17, 2023

The folks at @Desmos have been pretty busy adding new features left and right
Curriculum Tags: All

https://twitter.com/desmosclassroom/status/1726630422921322829

📣 Feature update: You can now copy + paste individual components in Activity Builder.

Long gone are the days of copying + pasting screens, just for one component.

Click on the Copy button in the top menu bar of any component. Then paste it into any screen in any activity. pic.twitter.com/3Bq03B60vd

— Desmos Classroom (@desmosclassroom) November 20, 2023

Video Links

I remember the first time I saw this and had such an aha moment
Curriculum Tags: MPM2D, MFM2P
https://twitter.com/howie_hua/status/1725661734650904581

It took me a while to realize that "completing the square" *literally* means to complete the square. Here's what I mean: pic.twitter.com/oKbB7PST3l

— Howie Hua (@howie_hua) November 17, 2023

Connecting visuals to the dot product of two vectors
Curriculum Tags: MCV4U
https://twitter.com/TimBrzezinski/status/1725582727104110787

Here, a #ThinSlice discovery lesson where Ss actively explore geometric insight of the dot product of 2 vectors: https://t.co/2jMdjpnLJQ @geogebra @pgliljedahl #MTBoS #ITeachMath #ThinkingClassroom pic.twitter.com/W2isc6zii3

— Tim Brzezinski (@TimBrzezinski) November 17, 2023

Image Links

Whenever I see this type of problem I think it is perfect to have some great problem solving sessions in a math class of any level.
Curriculum Tags: All
https://twitter.com/edsouthall/status/1726185889255096495

🤔 pic.twitter.com/Xdv0W6Su2E

— Ed Southall (@edsouthall.bsky.social) (@edsouthall) November 19, 2023    

Math Links for Week Ending Nov 17th, 2023

Featured Links

It's back, the @Desmos Global Math Art Contest is here
Curriculum Tags: All
https://blog.desmos.com/articles/art-contest-launch-2023/

The Desmos Global Math Art Contest is here! Have a graph that you’re proud of? We’d love to see it.

Submissions open December 1st. Learn more at https://t.co/GfWV1iuaSF. pic.twitter.com/CHl6shkAIW

— Desmos (@Desmos) November 17, 2023

Resource Links

Makes sense for both students and bots
Curriculum Tags: All
https://arxiv.org/pdf/2302.13814.pdf

When #ChatGPT didn't show its work on a math word problem, it got it wrong 84% of the time. When it showed its work, it improved and only got it wrong 20% of the time. Show your work, kids! It's important! #mtbos #mathedhttps://t.co/r3MZpHTBz7

— Cal Armstrong (@sig225) November 12, 2023

Video Links

Someone didn't do enough math before making this deal
Curriculum Tags: MCR3U
https://www.youtube.com/watch?v=4l16zI0sYRs

Image Links

I feel like this would be good to give that smart kids who is bored in your class
Curriculum Tags: All
https://twitter.com/jamestanton/status/1723272855352476052

An equilateral triangle can be subdivided into 2 and into 4 congruent pieces. Divide it into 3 congruent pieces.

Is it possible to divide it in to 5 congruent pieces? 6? 7?
For which N can an equilateral triangle be so subdivided? pic.twitter.com/Kb3JXJyqwl

— James Tanton (@jamestanton) November 11, 2023

Math Links for Week Ending Nov 10th, 2023

Featured Links

I did a thing. There is definitely a math problem here in the stats. 
Curriculum Tags: All
https://twitter.com/davidpetro314/status/1723504032830959734

Completed my cross Canada (virtual & IRL) cycling challenge today. Over 12536km of distance and 75852m of climbing since Jan 1st. From Yukon to Newfoundland 50 days ahead of schedule.

There is definitely a #math problem in here #MathChat #MTBoS #iTeachMath pic.twitter.com/fLPNtDj4kq

— David Petro (@davidpetro314) November 12, 2023

Resource Links

Fun Math games? Heck yeah
Curriculum Tags: All
https://twitter.com/kathyhen_/status/1720459394109096297

Sometimes my students finish their work early so I wanted to create a doc of fun and appropriate math games/puzzles for them. I’ve been updating this and would love some input on what I might have missed. #mtbos #iteachmath https://t.co/DRMzDGoXk4

— Kathy H (@kathyhen_) November 3, 2023

It's true. When kids have heard this, they come into our classes with a deficit already.
Curriculum Tags: All
https://twitter.com/saravdwerf/status/1720403632703537166

Article: Teachers and Parents: Stop Telling Kids You’re Bad at Math - The math teachers out there are begging you. https://t.co/B1uYtzVf8R

— Sara VanDerWerf (@saravdwerf) November 3, 2023

An Integer Mystery Number activity. Nice
Curriculum Tags: Gr7, Gr8
https://docs.google.com/presentation/d/1HSWbGRnNitPEc7z6HYGxrE568ns_PhElyjIOOz0VlmQ/edit#slide=id.g295e73c8f1e_0_40

I created a Mystery Number Activity for Grade 8 students working on integer operations.
One example and 7 riddles to figure out with their group. If you try it... I'd love some feedback!#iteachmath #HRCEmath #mtbos https://t.co/tMODvYdijh pic.twitter.com/SMldKIIfBG

— JoAnn Sandford HRCE Math (@joann_sandford) November 2, 2023

Another set of classic Calendar problems
Curriculum Tags: All
https://karendcampe.wordpress.com/2023/11/02/november-calendar-problems/

Happy November! Newly posted -- November Calendar of Problems!
Enjoy & please share your working here or on the blog.#ProblemSolving #MTBoS #iTeachMath #MathChat#MathsEdChat #Algebra #Geometry https://t.co/83mD0jC1hX

— Karen Campe (@KarenCampe) November 2, 2023

I love when other teachers post their summaries of stuff they've found. 
Curriculum Tags: All
https://mathhombre.blogspot.com/2023/10/playful-math-carnival-169.html

Links to #playfulmath from @simona_mathmum @PaulaKrieg @tracyjoproffitt @nrichmaths @mathequalslove @fractalkitty @jennalaib @MathTechCoach @DrEugeniaCheng @mathigon @MathforLove @KarenCampe @kassiaowedekind @saravdwerf @MrValencia24 & more https://t.co/TdUnimUtR6

— John Golden (@mathhombre) November 3, 2023

You can count on @DDMeyer to scrape the Internet and give us all the resources from NCTM
Curriculum Tags: All
https://twitter.com/ddmeyer/status/1722732637377515665

Did you miss #NCTMDC23? Or did you attend and can't figure out how to find anyone's slides or handouts? Oh wow check it out they're all right here. 👇https://t.co/pOFtLmD6Ko pic.twitter.com/q9REyWcslP

— Dan Meyer (@ddmeyer) November 9, 2023

You may not like @EQAO but it's always good to have resources
Curriculum Tags: MTH1W
https://twitter.com/eqao/status/1722720873403105555

📚 Unveiling new support resources of released mathematics questions! Our dedicated staff had the pleasure to present the new EQAO mathematics resources to the central math team at @PeelSchools! https://t.co/VNdoBcHExK pic.twitter.com/v3nmNicTfn

— EQAO (@eqao) November 9, 2023

Video Links

Some great stuff here if you are looking for tips when grading in the Thinking Classroom from @TimBrzezinski and @mccainm
Curriculum Tags: All

https://www.youtube.com/watch?v=Fgturm1No2U

Fractals for you
Curriculum Tags: All
https://twitter.com/pickover/status/1721218000638906823

Mathematics, fractals, and beauty.

Creating a Sierpinski Gasket with rotating triangles. Source: https://t.co/NA6c8agb44

By Matt Henderson, @matthen2, used with permission. pic.twitter.com/m21ubA0SIr

— Cliff Pickover (@pickover) November 5, 2023

For anyone who thinks the Imperial measurement system doesn't make sense. Thanks to @SarahVDWerf for this one
Curriculum Tags: All
http://www.metatube.com/en/videos/543852/SNL-Washingtons-Dream/

Image Links

Data in action (or from action)
Curriculum Tags: MDM4U
https://twitter.com/robertkaplinsky/status/1721874975412412601

What do you notice? What do you wonder? pic.twitter.com/iOIosDc6G9

— Robert Kaplinsky (@robertkaplinsky) November 7, 2023

Math Links for Week Ending Nov 3rd, 2023

Featured Links

I love sharing stuff I made and love when people share stuff that they made. And, even more, I love when people take the ideas of others and remix them. In this case, @MathButler was inspired by something I did to create his own version. I think he streamlined what I did along the way.
Curriculum Tags: Gr8
https://teacher.desmos.com/activitybuilder/custom/65400b96e57046e0944748d9

Triangle Congruence exploration with new geometry tool https://t.co/A2cELYWDR7 @desmosclassroom

Lots of credit to @davidpetro314 @MsBeckerMaths @Audra1475 for earlier versions of content. #iteachmath #mtbos #geometry

— Jedidiah (@MathButler) November 1, 2023

Resource Links

There is still time to sign up
Curriculum Tags: All
https://twitter.com/sig225/status/1719097346066133196

@OAMEcounts LEADERSHIP SERIES
A Virtual Event featuring Ilana Horn @tchmathculture
"How Talk of 'Best Practices' Inhibits Teacher Learning
Tuesday, November 14, 2023 6:30-8:30pm ESThttps://t.co/DTYnyVZRVm (new to MCIS? click "I'm a new user")#mathed #onted #mtbos pic.twitter.com/aC3sWxxF8O

— Cal Armstrong (@sig225) October 30, 2023

I'm not sure how I didn't know this existed
Curriculum Tags: All
https://www.mathgameswithbaddrawings.com/games

Awesome! @benorlin has a revived #mathgame site to accompany his great book. Including a daily puzzle! https://t.co/SLKhryajDf

— John Golden (@mathhombre) November 1, 2023

Do you want to have an interesting conversation with your kids? How about talking about what 00 is? There seems to be consensus but there was some debate as well.

Curriculum Tags: All
https://web.archive.org/web/20190114142918/https://mathscitech.org/articles/zero-to-zero-power

Mathematics.

This article caught my eye today: "Why Zero Raised to the Zero Power IS One," by Assad Ebrahim. Link: https://t.co/f6KlGsMiuY pic.twitter.com/DA02rrR4EN

— Cliff Pickover (@pickover) October 31, 2023

I love the interaction with this activity on trig ratios
Curriculum Tags: MPM2D, MFM2P, MCF3M, MBF3C

https://teacher.desmos.com/activitybuilder/custom/5b42f323980e50321b1d4a73

Practicing trigonometric ratios with my favourite @desmosclassroom activity by @KenClarkson3 . Love the virtual measuring and interactive feedback. https://t.co/2N67ZZ8ZkK pic.twitter.com/eOCKcLxOTu

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

Video Links

I've never been a big fan of "tricks" unless you can talk about the math of how that trick works. In this case, multiplying binomials.
Curriculum Tags: MPM2D, MFM2P
https://twitter.com/howie_hua/status/1719381191751876804

Trick or treat? Have both! A mental "trick" for squaring numbers that end in 5 and why it works pic.twitter.com/HT2yNU6uRW

— Howie Hua (@howie_hua) October 31, 2023

What a fun graph

Curriculum Tags: All

https://www.desmos.com/3d/a335735d5b

Happy Halloween. Hope you have a spooktacular day. 👻🎃

Link to graph: https://t.co/hQHh9sDLM9 pic.twitter.com/KSd4Z7dQ1O

— Desmos (@Desmos) October 31, 2023

Image Links

Can your kids tell which is the better deal?
Curriculum Tags: MTH1W
https://twitter.com/engineers_feed/status/1719441669521809516

Which one is the better deal? pic.twitter.com/o0xbRE5tpC

— World of Engineering (@engineers_feed) October 31, 2023

Math Links for Week Ending Oct 27th, 2023

Featured Links

If you are using any of @pgliljedahl's Thinking Classroom resources then you are probably interested in ways to assess while staying true to the spirit of the Thinking Classroom. If so then you might like @TimBrzezinski's method here (including template). Watch his video and then use the link to get the resources for yourself. 
Curriculum Tags: All
http://tinyurl.com/BTCrubric

Building Thinking Classrooms automated grading rubric: REVAMPED! Special shout out & T/Y to @mccainm for her Google Sheet wizard skills & to @pgliljedahl for giving us invaluable input to help make this resource even better! https://t.co/KTlNjv2okj #MTBoS #ITeachMath pic.twitter.com/yujYdpGSyG

— Tim Brzezinski (@TimBrzezinski) October 23, 2023

Resource Links

I always post fellow "link summarizers'" summaries when I see them :-)
Curriculum Tags: All
https://www.resourceaholic.com/2023/10/5-maths-gems-175.html

New! My 175th gems post. Ideas, updates and resources for maths teachers. 💎https://t.co/NSFwnfjOa8

Hat tips to follow!#mathsgems #mathschat #teammaths #mathstlp #mathscpdchat pic.twitter.com/SG3W2nzlHA

— Jo Morgan (@mathsjem) October 24, 2023

Who doesn't like a good set of problems?
Curriculum Tags: All
https://sites.google.com/site/mathteammatics/home/competition-problems

occasionally people still asking for access to old #mathteammatics items. Been 10 years! https://t.co/7FXO2ARnJI Still fun problems, though. https://t.co/davgXUkaoi @OttenAndrew & Sarah!

— John Golden (@mathhombre) October 26, 2023

A game for Halloween
Curriculum Tags: All
https://mathequalslove.net/ghost-game/

One more new game to share before Halloween next week! This Ghost Game is an adaptation of a paper and pencil game that I found in a 1979 issue of GAMES Magazine. It is a variation of CrossCram. https://t.co/tRd3Uwl4fv #mtbos #iteachmath #teach180 pic.twitter.com/3V0Wwqq6VC

— Sarah Carter (@mathequalslove) October 27, 2023

Video Links

Though induction isn't in the Ontario math curriculum anymore, I still love these kinds of proofs. And it may still be a good thing to add to a grade 11 or 12 class
Curriculum Tags: MCR3U, MHF4U
https://twitter.com/howie_hua/status/1717332044437741691

An example of a proof by induction: How can we show 1+3+5+7+... always equals a square number? pic.twitter.com/Ftf09BUrWf

— Howie Hua (@howie_hua) October 26, 2023

Image Links

Though Canada is not here, I am curious how they decided in which order to put the countries.
Curriculum Tags: MDM4U
https://twitter.com/infobeautiful/status/1717253453544624152

🍕 In a survey of 24 countries, pizza and pasta take the top spot – closely followed by Chinese and Japanese cuisine. #dataviz #heatmap pic.twitter.com/L2tAZlayjC

— Information is Beautiful (@infobeautiful) October 25, 2023

I can't decide if I am horrified by this or love it
Curriculum Tags: All
https://twitter.com/edsouthall/status/1717596294011621576

I asked chat gpt for some nice images of people enjoying doing some maths. Teachers could maybe use them for open evenings or similar. You’re so welcome everyone. pic.twitter.com/KMomjNzKH9

— Ed Southall (@edsouthall) October 26, 2023

Math Links for Week Ending Oct. 20th, 2023

Featured Links

There is still a week to submit entries into this MoMath contest. 
Curriculum Tags: All 
https://momath.org/hatcontest/

Whatever you can imagine making with the famous and mathematically groundbreaking "einstein" tile, submit it for your chance to win $10,000!

The Einstein Mad Hat Awards with @UKMathsTrust invites you submit ANY type of project — food, art, STEM, fashion, etc. — for (1/2) pic.twitter.com/gEfSB9hJyA

— National Museum of Mathematics (@MoMath1) October 16, 2023

Resource Links

It seems the resources are endless on @Mathigon. In this case, piles of puzzles. 
Curriculum Tags: All
https://mathigon.org/puzzles

How many cards, on average, do you have to draw from a standard shuffled deck of 52 cards before you get the first ace? Find more at https://t.co/qNnNHDXfo2 pic.twitter.com/Cj9DL03ULt

— Mathigon (@MathigonOrg) October 18, 2023

Video Links

There aren't many opportunities in the Ontario math curriculum where you need 3D graphing but in the MCV4U curriculum when you have 3D vectors, using the new @Desmos 3D graphing calculator is the way to go. Here's some simple ways to represent vectors and vector operations,
Curriculum Tags: MCV4U
https://www.desmos.com/3d
https://twitter.com/Desmos/status/1714675043752378526
https://twitter.com/Desmos/status/1714718962741563666

Curious how to visualize vectors in 3D? Here, we dive into how to graph a vector, and use built-in functions to identify the individual components of any point or vector. #Unlocking3D🔒 pic.twitter.com/lMava9CS1N

— Desmos (@Desmos) October 18, 2023

Not only can you visualize vectors in Desmos 3D, but also perform vector operations in the expression list. Thanks for joining us as we have been #Unlocking3D🔒, and be sure to visit our Youtube page for all the videos! pic.twitter.com/kUxRtyNf95

— Desmos (@Desmos) October 18, 2023

I think it's cool how they calculated the volume. 
Curriculum Tags: MPM2D, MFM2P
https://youtu.be/a_fTA4UeFls?si=CTLZdYtgGCwrhQ3H

Image Links

I like these types of questions that benefit from a little simplification.
Curriculum Tags: MPM2D, MFM2P
https://twitter.com/sonukg4india/status/1715180896943534252

#morning with #math pic.twitter.com/ITxT1Q3oL8

— SKG (@sonukg4india) October 20, 2023

 

Math Links for Week Ending Oct 13th, 2023

Featured Links

I love that @JennaLaib continues to add more graphs to her Slow Reveal Graph site. Check them all out here:
Curriculum Tags: All
https://slowrevealgraphs.com/

Resource Links

I love the theory behind tessellation. You can get into it with this paper and if you want to play around dynamically I have a @Desmos version and Websketch version you can try
Curriculum Tags: All
https://twitter.com/tessellationfan/status/1712516167447826531

The first in a new series showcasing the work of essentially unknown Escher-like tessellation artists that have a degree of artistic integrity. Fish, by Xun Lin, taken from his 1995 thesis.https://t.co/JyU3FBU7HS pic.twitter.com/Tf8LU8n84G

— David Bailey (@tessellationfan) October 12, 2023

I like how @KarenCampe has tried to summarize major concepts into one big rule for each. There is a lot here that you could bring in on multiple grade levels. 
Curriculum Tags: MTH1W, MPM2D, MCR3U, MCF3M, MBF3C
https://karendcampe.wordpress.com/2023/10/13/one-big-rule-to-rule-them-all/

New blog post: "One Big Rule to Rule Them All"#MTBoS #iTeachMath #T3Learns #MathChathttps://t.co/nfaCvc10oM

— Karen Campe (@KarenCampe) October 13, 2023

Video Links

A simple description of where the permutation and combination formulas come from
Curriculum Tags: MDM4U
https://twitter.com/howie_hua/status/1711899553711132699

Want to understand the permutation and combination formulas? Here's how we can make sense of them! pic.twitter.com/yxs7N6OnQT

— Howie Hua (@howie_hua) October 11, 2023

Image Links

Though I don't know that I like the taunt "you should know this" I do like problems that are simpler than they appear. 
Curriculum Tags: MCR3U
https://twitter.com/sonukg4india/status/1711298791046041911

#Puzzled pic.twitter.com/TkqNcCzApI

— SKG (@sonukg4india) October 9, 2023

More power to ya
Curriculum Tags: MTH1W

https://twitter.com/sonukg4india/status/1711039754249392534

#puzzledd pic.twitter.com/vFzWuuQXU2

— SKG (@sonukg4india) October 8, 2023