Math Links for Week Ending Aug 26th, 2022

Featured Links

I like this story because it speaks to the idea of perseverance (of students) and understanding (of teachers) and also reminds me that as teachers we can have a huge influence on students and rarely ever know what we may do to cause that influence.
Curriculum Tags: All
https://www.theguardian.com/lifeandstyle/2022/aug/24/a-moment-that-changed-me-a-maths-puzzle-taught-me-to-use-my-brain-and-helped-me-cope-with-losing-my-daughter?CMP=Share_AndroidApp_Other

Peter Harrison. My friend, mentor in life and math, sent me this today. No article has better articulated what I believe about math education and even why I need to reduce my footprint here—I need to avoid seeing the purity of its humanity be trampled on.https://t.co/xTgKXnpBT2

— Sunil Singh (@Mathgarden) August 24, 202

Resource Links

If you are reading Building Thinking Classrooms then you might like this study guide
Curriculum Tags: All
https://buildingthinkingclassrooms.com/wp-content/uploads/2020/11/Book-Study-Guide.pdf

Here is free book study guide: https://t.co/pT9llZMh75 https://t.co/guex44oA3L

— Peter Liljedahl (@pgliljedahl) August 24, 2022

Video Links

Although these are "tricks" for sure, you can definitely use them to help students practice mental math or using formulas or order of operations or even working with patterns. 
Curriculum Tags: All
https://www.youtube.com/watch?v=UDQjn_-pDSs

Those conversations (about thinking) are the most important to have in math class. 
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https://twitter.com/howie_hua/status/1562594549221822464

New TikTok video: My first mathematical activity I do with students pic.twitter.com/qVuYqtoYJo

— Howie Hua (@howie_hua) August 25, 2022

Surely you can find some geometry connections to building the best paper airplane

Curriculum Tags: All
https://www.wired.com/story/learn-how-to-fold-a-world-record-setting-paper-airplane/

Here's how to make the paper airplane that set the world record for distance https://t.co/MqWKqh33Ce pic.twitter.com/zp8sZy0KWA

— Vala Afshar (@ValaAfshar) August 23, 2022

Image Links

I am a big fan of tiling and would love for my walls to look like this
Curriculum Tags: All
https://twitter.com/Gelada/status/1562125764476149761

My new tiling installation in Tulsa @tulsastem. It slowly reveals aspects of the Socolar tiling, from vertices to edges to 2d tiles (there are plans to go to 3d in Augmented Reality!). #poweredbyflightnight #mathart pic.twitter.com/MazqFRKd32

— Edmund Harriss (@Gelada) August 23, 2022

    

Math Links for Week Ending Aug 19th, 2022

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There is something for everyone here in terms of math content (from elementary all the way to calculus) but really it's about proving stuff. It's too bad that we don't have our old Algebra & Geometry course anymore because this would be perfect for it. However, just the visuals that he produces, alone, are worth the watch. Even the one about the "missing" in the triangle. 
Curriculum Tags: All
https://www.youtube.com/watch?v=VYQVlVoWoPY

Resource Links

Who doesn't want a mashup of Mathigon and @Fawnpnguyen's Visual Patterns
Curriculum Tags: Gr7, Gr8, MTH1W
https://mathigon.org/task/visual-patterns

Polypad is a great tool for exploring visual patterns. We've created interactive versions of 20+ visual patterns to help students engage in algebraic thinking. View the Polypad collection, some designed by @fawnpnguyen, at https://t.co/VBlH0Mhj8d pic.twitter.com/7dJaV1Qr8P

— Mathigon (@MathigonOrg) August 18, 2022

Have you been using @Desmos Activity Builder in your classroom then you may want to follow @DesmosClassroom 
Curriculum Tags: All
https://twitter.com/desmosclassroom/status/1559583373751791616

👋Hey hey—your friends at Desmos Classroom are now on Twitter! Follow us for the newest fun in math education technology. We'll be posting lessons & activities, tutorials, giveaways, events, maybe even a joke or two. Say hey! #MyDesmosClassroom #mtbos #iteachmath pic.twitter.com/RILTCz0WtP

— Desmos Classroom (@desmosclassroom) August 16, 2022

We have a pizza place near us that will sometimes replace a large pizza with two smalls not realizing that two smalls (even though together they have a total diameter that is bigger than the large) have a smaller area than the large. It's a great problem to pose to students when calculating the area of circles and this site has a nice interactive to go along with that problem
Curriculum Tags: Gr7
https://flowingdata.com/2022/07/26/pizza-exchange-rate/

Video Links

Who doesn't like moving tessellations?
Curriculum Tags: All
https://twitter.com/sjpalmer1994/status/1560576142712524800

Some assembly required... pic.twitter.com/xy28d24Uaj

— Sam Palmer (@sjpalmer1994) August 19, 2022

Who knew that repeated powers had a name?
Curriculum Tags: MTH1W
https://twitter.com/howie_hua/status/1560431211717177344

New TikTok video: Multiplication is repeated addition, exponentiation is repeated multiplication, is there something after that? pic.twitter.com/Q6sCCzqVVj

— Howie Hua (@howie_hua) August 19, 2022

I've always loved this demonstration of the binomial distribution
Curriculum Tags: MDM4U
https://twitter.com/MagicPi2/status/1560553402081447936

As you rotate the Galton Board, you set into motion a flow of steel beads that bounce with equal probability to the left or right through several rows of pegs. As the beads accumulate in the bins, they approximate the bell curve, as shown by the yellow line. pic.twitter.com/x1ic3AI1Vr

— Idan Tal (@MagicPi2) August 19, 2022

These balls trace out the perimeter of a series of regular figures all with the same side length. The visual is pretty neat. 

Curriculum Tags: All
https://twitter.com/MagicPi2/status/1560232811562401793

Dancing Points on Regular Polygons
Geogebra resource: https://t.co/bt8qllKrcd
Credit: https://t.co/eQfDhiuEvv#mtbos #iteachmath #Math #Maths pic.twitter.com/MLboTZQhTU

— Idan Tal (@MagicPi2) August 18, 2022

Do you need an idea of how to randomize groupings for your Thinking Classroom?

Curriculum Tags: All
https://twitter.com/joelbezaire/status/1559205984395993088

This is how I do my “Variable Random Grouping” #vrg , in my adaptation of a #thinkingclassroom. I don’t use all the facets of thinking classrooms but this part has been a game changer for my teaching. pic.twitter.com/pS8vwSZ15J

— Joel Bezaire (he/him) (@joelbezaire) August 15, 2022

Applications of Trig via Tom & Jerry? Well you could have your students check the math
Curriculum Tags: MPM2D, MCF3M, MCR3U
https://twitter.com/UniverCurious/status/1558834833207562243

Math is cartoons.pic.twitter.com/t1MzHKTmWU

— Universal Curiosity (@UniverCurious) August 14, 2022

Image Links

Given that we had that nice video of the binomial distribution, it's fitting that XKCD has a cartoon related to it as well. 
Curriculum Tags: MDM4U
https://xkcd.com/2659/

    

Math Links for Week Ending Aug. 12th, 2022

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I have mentioned this workshop series before but because it looks so useful and starts shortly, I thought I would give it a mention one more time
Curriculum Tags: All
https://twitter.com/TimBrzezinski/status/1556826759739359239

URLs to the @geogebra workshop with @EMasslich and @MathTechCoach have been created! Starts next MON AUG 15 at 9PM. Here are 4 places where you'll be able to access it live:https://t.co/GQ8rr41CYKhttps://t.co/PgvAbIC3Uwhttps://t.co/dLqHrbjyclhttps://t.co/tTxbSsIX6p https://t.co/R8GRkVnjoo

— Tim Brzezinski (@TimBrzezinski) August 9, 2022

Resource Links

This is really interesting. This is the idea that all the figures are poorly drawn so students have to use the other clues (congruent sides, angles etc) to determine, if they were drawn correctly, what type of shape this was. 
Curriculum Tags: Gr8, MTH1W
https://twitter.com/MathTechCoach/status/1557091978663411712

Hey #ITeachMath and #MathTwitter and #MTBoS
I created a Poorly Drawn Squars activity today. All of my poorly drawn things are in this @GeoGebra Book https://t.co/XEBYKxExZv pic.twitter.com/bPj8wyiXW2

— Steve Phelps (@MathTechCoach) August 9, 2022

We've been promoting the benefits of the "Thinking Classroom" for years here but it's always good to hear a new opinion.
Curriculum Tags: All
https://robertkaplinsky.com/you-must-read-building-thinking-classrooms-in-mathematics-by-peter-liljedahl/

I've been a math educator since 2003 and Building Thinking Classrooms in Mathematics by @pgliljedahl has more potential to improve the way we teach mathematics than any other book I have ever read.

I wrote a blog post to share why we should all read it:https://t.co/oWkYbmWvel pic.twitter.com/Kce9INaCUZ

— Robert Kaplinsky (@robertkaplinsky) August 9, 2022

Video Links

People have trouble with big numbers. Here are some visuals to help with billions and millions.
Curriculum Tags: All
https://twitter.com/howie_hua/status/1557517003711139842

New TikTok video: The difference between a million and a billion pic.twitter.com/huuACxpmeX

— Howie Hua (@howie_hua) August 10, 2022

This time Howie gives us some visuals on a few geometric series. 

Curriculum Tags: MCR3U
https://twitter.com/howie_hua/status/1557155857980264448

New TikTok video: Understanding these 3 geometric series through visuals pic.twitter.com/od1Mc7Day9

— Howie Hua (@howie_hua) August 10, 2022

Image Links

For the last week of #MathPhoto22, the challenge is to find images that combine as many of the previous themes. 
Curriculum Tags: All
https://twitter.com/AlisonHogben/status/1557633224783941632

It’s the final week of #MathsPhoto22 and I’m pleased to be hosting the #MathsMashUp. How many of the previous prompts can you include in one photo? The challenge begins! pic.twitter.com/RY7fOrH5Qk

— Alison Hogben (@AlisonHogben) August 11, 2022

Math Links for Week Ending Aug 5th, 2022

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I know that Henri has suggested that his post where he speaks of going full force with technology as "controversial", but I think maybe just for traditionalists. There are whole banks of math teachers that think that math is just about solving equations but I like these two quotes to give you a sense of where he is going: "Many math educators consider the solving of linear equations to be the heart of algebra. The topic is often introduced early, atomized into many special cases (one-step, two-step, etc.), and the subject of endless mind-numbing practice. For many students, this carries little meaning, other than “I’m supposed to get x by itself”" and "But note that of all the conceivable equations, only linear and quadratic equations can be solved with paper and pencil. If exponential, trigonometric, or logarithmic expressions are involved, Algebra 1 techniques are useless." Check it out yourself here
Curriculum Tags: All
https://blog.mathed.page/2022/08/04/technology-in-math-education/

New post, possibly controversial: going all in on techhttps://t.co/5bdxPz3bDH#mtbos #iteachmath #mathed pic.twitter.com/VnnhjtTOzu

— Henri Picciotto (@hpicciotto) August 4, 2022

Resource Links

If you are doing any work on working with equations (Eg, subbing values in) then this equation about measuring "good value" might be a great conversation starter too. 
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/tomrocksmaths/status/1554101589719252999

My formula for good value has been picked up by @DailyMirror - give it a go for yourself to see what is, and isn't, good value. Full article at the link below.

Formula based on research from @Plusnet in celebration of Yorkshire Day (August 1st). https://t.co/owx4jJGs7D

— Dr Tom Crawford (@tomrocksmaths) August 1, 2022

Video Links

If you are doing any work with area of quadrilaterals then this might be a great problem to work on and if you want to get kids started, here is a triangle only version using Desmos Geometry.
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/MagicPi2/status/1554007752149811200

pic.twitter.com/wYbgRm5UX8

— Idan Tal (@MagicPi2) August 1, 2022

Image Links

Week 8 of #MathPhoto22 is all about #angles
Curriculum Tags: All
https://twitter.com/meganisalanis/status/1554920041912487936

Kia ora koutou, hi everyone - this week's #MathPhoto22 is all about #angles (I'm from New Zealand and the te reo Māori word for angle is koki).

The photos so far each week have been fantastic! What a great way to connect, find and share ideas with a keen group of people. pic.twitter.com/Eu1rSWINuP

— Megan Me-Wi (@meganisalanis) August 3, 2022