Math Links for Week Ending Mar 29th, 2024

Featured Links

Seeing this list of math videos by topic makes me think that I should look back at my old BlockBuster Math presentation about Math in Movies and TV. I literally have tonnes of clips on a hard drive that must exist other places. Gives me something to do in compiling that.
Curriculum Tags: All
https://mathsedideas.blogspot.com/p/video.html

A catalogue of links to >150 mathsy videos and clips — arranged by theme — for teaching hooks, curriculum enrichment, or just to dip into, relax, share, and enjoy. Including from @tweetsauce @veritasium @3blue1brown @Ri_Science @OxUniMaths and more: https://t.co/Rzigr3Lptb

— Maths Ed (@MathsEdIdeas) March 28, 2024

Resource Links

The latest classic @NCTM calendar posted by @KarenCampe
Curriculum Tags: All
https://twitter.com/KarenCampe/status/1773728516154011920

It's a good Friday to do some #ProblemSolving from the March Calendar of Problems!
Solutions coming soon & April calendar is around the corner...#MTBoS #iTeachMath #T3Learns#Algebra #Geometry #MathChat https://t.co/6YR7gQApNM

— Karen Campe (@KarenCampe) March 29, 2024

A nice Pythagorean puzzle. Here is my solution.
Curriculum Tags: Gr8, MTH1W
https://twitter.com/jamestanton/status/1772910933142384761

Three squares constructed on the sides of a right triangle. Where exactly is the point P along the hypotenuse of the triangle that indicates where to split the large square into two rectangles with areas matching those of the small squares as shown? pic.twitter.com/A1kr3uXKpi

— James Tanton (@jamestanton) March 27, 2024

Fun with number theory
Curriculum Tags: MTH1W

https://twitter.com/MathsEdIdeas/status/1772320908184567948

89 is a ‘disarium’ number, i.e., the sum of its digits powered with their respective positions is equal to the number itself. Like:

12157692622039623539 = 1¹ + 2² + 1³ + 5⁴ + 7⁵ + 6⁶ + 9⁷+ 2⁸ + 6⁹ + 2¹⁰ + 2¹¹ + 0¹² + 3¹³ + 9¹⁴ + 6¹⁵ + 2¹⁶ + 3¹⁷ + 5¹⁸ + 3¹⁹ + 9²⁰

— Maths Ed (@MathsEdIdeas) March 25, 2024

Video Links

This might be a fun survey to do in your school. But it is pretty fascinating how 37 shows up a lot.
Curriculum Tags: All
https://youtu.be/d6iQrh2TK98?si=l2Ito68nu9wrfezw

A classic puzzle
Curriculum Tags: All
https://twitter.com/howie_hua/status/1773357260921598181

A fun checkerboard puzzle pic.twitter.com/r8qX8i2bpN

— Howie Hua (@howie_hua) March 28, 2024

Image Links

Bad stats in action
Curriculum Tags: MDM4U
https://twitter.com/indepmofan_/status/1773397064640270509

graph crime being committed in front of our eyes https://t.co/9qpMcE05iV

— RN HTF 🇺🇸 (@indepmofan_) March 28, 2024

Some good use of fractions could help here
Curriculum Tags: All
https://twitter.com/dment37/status/1772180241965781341

Blue area? pic.twitter.com/2TkWFlmBy8

— Daniel Mentrard (@dment37) March 25, 2024

Math Links for Week Ending Mar 22nd, 2024

Featured Links

There are many good things here, not just quotes.
Curriculum Tags: All
https://mathsedideas.blogspot.com/p/resources.html

A set of 100 mathematical quotes, curios, provocations, etc., to colour our corridors with mathematics. For free downloads including an editable versions: https://t.co/enWt5ZNqwk pic.twitter.com/e6DynlTEAa

— Maths Ed (@MathsEdIdeas) March 20, 2024

Resource Links

Here is an engaging way to talk about rational and irrational numbers
Curriculum Tags: MTH1W
https://teacher.desmos.com/activitybuilder/custom/65f8b15cb49a4c806d490769

Created a @desmosclassroom activity as an introduction to irrational numbers for my Math 10 students. The animated card sort feedback screens from @Johnston_MSMath are so fun! #ITeachMath https://t.co/Hahg3qsDQ8 pic.twitter.com/bjITPpJTeB

— Erick Lee HRCE Math (@TheErickLee) March 19, 2024

Video Links

If you want to go deeper with transformations then this is actually pretty cool
Curriculum Tags: MCR3U
https://youtu.be/1LCEiVDHJmc?si=EHcQMrUJK4rR9Ggb

Image Links

I never miss a chance to hear @NatBanting speak. We were lucky to have him speak locally. Be sure to check out all his resources at NatBanting.com
Curriculum Tags: All
https://twitter.com/davidpetro314/status/1771317850470302009

Last night @NatBanting spoke to a small group of our local @OAMEcounts members. Among other things, this was my favourite slide:
“Math is most potent when experienced, not when explained” #MathChat #MTBoS #MathChat pic.twitter.com/1p529EUOxD

— David Petro (@davidpetro314) March 22, 2024

Math Links for Week Ending Mar 15, 2024

Featured Links

I love thinking about other ways to grade student work. There are some great ideas here if you are looking for some change
Curriculum Tags: All
https://gradingforgrowth.com/p/20-small-starts-for-alternative-grading

Today at Grading For Growth, I give 20 ways to get started with alternative grading on a small scale. Some of these are simple shifts in approach, while some are more concrete. But they are all good for students!#alternativegrading #highereducationhttps://t.co/tCsnkwm4oQ

— Robert Talbert (@RobertTalbert) March 11, 2024

Resource Links

I feel like you could do a lot of fun things in just about any class with this resource. 
Curriculum Tags: All
https://www.eatmy.art/

Playing with https://t.co/hH68olMjFJ today in class. Super easy to make animated gif images. #ITeachMath pic.twitter.com/VLumeSpQfv

— Erick Lee HRCE Math (@TheErickLee) March 8, 2024

Some more Pi Day resources
Curriculum Tags: All

https://mathsedideas.blogspot.com/2018/02/on-pi-day.html

A collection of activities for #PiDay… π history. π formulae. π birthdays. π primes. π puns and jokes. π art. Fake proofs for π. Memorising π. Continued fractions for π. Pilish. The music of π. Plus links to film, audio, websites, and articles. And more… https://t.co/SysSa3AO6R

— Maths Ed (@MathsEdIdeas) March 11, 2024

https://static1.squarespace.com/static/5436e695e4b07f1e91b30155/t/5504cbf1e4b00ffe1406e552/1426377713470/why-pi-matters.pdf

Why Pi Matters (from @NewYorker in 2015)https://t.co/n4GRBlUfUx

PDF for non-subscribers: https://t.co/c05o0asfX1

— Steven Strogatz (@stevenstrogatz) March 14, 2024

https://www.desmos.com/geometry/nm34xeu8xk

Not like we need an excuse to open up the Desmos Geometry tool, but this Archimedes-inspired strategy for approximating pi is a pretty good one. Happy Pi Day!#piday #PiDay2024 #geometry #mathproof #mathteacher pic.twitter.com/QUVhCsq5wZ

— Desmos (@Desmos) March 14, 2024

A nice visual showing sinusoidal relations
Curriculum Tags: MCR3U, MCF3M

https://twitter.com/historyinmemes/status/1767287126629245082

How to explain the math in a simple way pic.twitter.com/Ch6LVtLzpG

— Historic Vids (@historyinmemes) March 11, 2024

I have my own list of Math based podcasts (here) but this is another one and I love the way that it is organized by topic. 
Curriculum Tags: All

https://mathsedideas.blogspot.com/p/mathematics-audio-documentaries.html

An updated catalogue of links to ≈ 400 mathsy radio and podcast programmes — to dip into, relax to, share, and enjoy. Including from @stevenstrogatz @FryRsquared @alexbellos @SLSingh @tomrocksmaths @d_spiegel and many more: https://t.co/ANOXtRBZ2i

— Maths Ed (@MathsEdIdeas) March 14, 2024

Video Links

Here's a fun little proof that you could do when talking about prime numbers
Curriculum Tags: MTH1W
https://twitter.com/howie_hua/status/1766452571760402904

Did you know all prime numbers are one away from a multiple of 6 (besides 2 and 3)? Here's how we know: pic.twitter.com/D88M5qPhKp

— Howie Hua (@howie_hua) March 9, 2024

A nice representation with the Olympics coming up
Curriculum Tags: Gr7, Gr8, MDM4U
https://twitter.com/jennalaib/status/1766634206694670345

Love this one! I'm wrapping around my head around the fact that it was 2:1 male to female when I was a kid! 🤯

Here's to it being 1:1, and maybe even 1:1:x in the future, to be more inclusive... https://t.co/QJUv1vCLYL

— Jenna Laib (@jennalaib) March 10, 2024

Here is a nice visual proof of the sum of squares 
Curriculum Tags: MCR3U
https://en.etudes.ru/models/sum-of-squares/

The Sum of Squares, with a geometric proof 🧱🧱🧱https://t.co/QLGWAHfjNw (by Mathematical Etudes)#math #science #iteachmath #mtbos #visualization #elearning #geometry pic.twitter.com/AKcIuWvzHi

— Tungsteno (@74WTungsteno) November 8, 2021

Image Links

I like this because you could solve it rather elegantly with algebraic manipulation or use a more brute force method by just evaluating the powers.
Curriculum Tags: MTH1W
https://twitter.com/mehrdadbas72335/status/1767120608284799103

Easy question for you...🔥🔥🔥.
Question:
Try to find the value of x?#mathe.#Maths.#Algebra.#Geometry.#Calculus.#ProblemSolving.#test.#Exams.#puzzle.#Science.#evaluation.#solve.#ریاضی.#ریاضیات. pic.twitter.com/cjFf9yldMt

— Mehrdad Basiry (@mehrdadbas72335) March 11, 2024

Perhaps writing this in a simpler form will help?

Curriculum Tags: MTH1W
https://twitter.com/mehrdadbas72335/status/1767473786075656683

Easy question for you...🔥🔥🔥.
Question:
Try to find the value of following expression?#mathe.#Maths.#Algebra.#Geometry.#Calculus.#ProblemSolving.#test.#Exams.#puzzle.#Science.#evaluation.#solve.#ریاضی.#ریاضیات. pic.twitter.com/eszuMYrRzb

— Mehrdad Basiry (@mehrdadbas72335) March 12, 2024

Throwing shade on the standard algorithm

Curriculum Tags: All
https://twitter.com/Mathgarden/status/1767164834540343342

pic.twitter.com/AbErJVB5u9

— Sunil Singh (@Mathgarden) March 11, 2024

Here is a great problem to use when applying circle theorems
Curriculum Tags: MTH1W
https://twitter.com/sonukg4india/status/1767406915251044827

#Puzzled pic.twitter.com/9JU1PWCTxW

— SKG (@sonukg4india) March 12, 2024

I make this joke all the time
Curriculum Tags: MPM2D, MFM2P, MCR3U, MCF3M, MBF3C, MAP4C

https://twitter.com/thescottbarber/status/1767740512017293512

Jesus teaching only in parabolas pic.twitter.com/b8Yty5VTVx

— Scott Barber (@thescottbarber) March 13, 2024

    

Math Links for Week Ending Mar 8th, 2024

Featured Links

My comment about this is that this is now the nail in the coffin for traditional teaching (just telling kids stuff)
Curriculum Tags: All
https://twitter.com/ddmeyer/status/1765485851851538854

Here is an interaction I just had with a chatbot. If this was a teacher you were coaching, what would be your feedback? pic.twitter.com/ogSc0K7350

— Dan Meyer (@ddmeyer) March 6, 2024

Resource Links

I made this investigation to look at various circle theorems. However, I made two versions. One that requires much more construction and one that has far less (so it takes less time). Get them both at the link below:
Curriculum Tags: MTH1W
https://engaging-math.blogspot.com/p/desmos-activities_10.html

[New @Desmos Activity] Students Investigate circle theorems using the short version (minimal construction) or the long version (more construction) of this @DesmosClassroom activity https://t.co/JUNFclWxKi#MathChat #MTBoS #iTeachMath #MTH1W pic.twitter.com/QSgmabGist

— David Petro (@davidpetro314) March 8, 2024

Here is a nice set of dynamic visualizations for Circle theorems
Curriculum Tags: MTH1W
https://twitter.com/dment37/status/1765661861112938843

Circle theorems
Visualization |Animation | Interactive applet@geogebrahttps://t.co/s8R8SUoBzg#geogebra #math #science #iteachmath #mtbos #visualization #elearning @bancoche #Physics pic.twitter.com/SR2DoQkCwW

— Daniel Mentrard (@dment37) March 7, 2024

Do you want a reason to look at the distance formula on the coordinate plane? Then look no further
Curriculum Tags: MPM2D, MCR3U, MCF3M
https://robertkaplinsky.com/work/toys-r-us/

Sadly, there are no longer Toys 'R Us stores, but the context remains. How does a computer know how far away a store is away from you? It's similar to finding distance on a coordinate plane. https://t.co/t0jmdqBNzL pic.twitter.com/5U8gSszzs8

— Robert Kaplinsky (@robertkaplinsky) March 1, 2024

Thanks @JamesTanton for sharing this free resource. 
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/jamestanton/status/1764025344045019377

A draft of Chapter 3 of COLLEGE ALGEBRA FOR HUMANS is done. (Here are chapters 1, 2, and 3.) https://t.co/gPEvhQgZsc
I am rewriting and tightening up all my algebra notes and thoughts into one tome. I think I properly tightened up making sense of the AREA MODEL for arithmetic… pic.twitter.com/eMnp2N3n39

— James Tanton (@jamestanton) March 2, 2024

It's always nice to have extra problems for your Thinking Classrooms
Curriculum Tags: All
https://twitter.com/MathforLove/status/1764682957351231830

One of my favorites!

Here’s a fun extension of that problem - https://t.co/DclJ9GT5t9

— Dan Finkel (@MathforLove) March 4, 2024

Need a resource on Conics?
Curriculum Tags: MCR3U
https://twitter.com/MathigonOrg/status/1764667238815047690

Where do circles, ellipses, hyperbolas, and parabolas like to hang out in the summer?
Coney Island! You can make many shapes by pointing a light onto a flat surface. They might look quite different but have many properties in common. Learn more at https://t.co/zGPijgDfnx pic.twitter.com/dvR3vIOT2D

— Mathigon (@MathigonOrg) March 4, 2024

Perfect if you are dealing with your students learning about finding sidelengths with trig ratios. 
Curriculum Tags: MPM2D, MFM2P, MBF3C
https://twitter.com/TimBrzezinski/status/1764976336521527590

Here, a quick journey at my attempt to thin slice a conceptual exploration where Ss use trig ratios to solve for unknown sides of right triangles: https://t.co/iwxGfAUDcs @pgliljedahl #MTBoS #ITeachMath @thinkingclassrm @geogebra pic.twitter.com/1s4V7K587Y

— Tim Brzezinski (@TimBrzezinski) March 5, 2024

The thing I like most about this is the fact that it shows that, for the most part, effective teaching has bits of all the researched based ideas in proportions based on you. And those proportions vary from person to person when it comes to what is effective. But regardless I like @Jason_To's even keel treatment of this.
Curriculum Tags: All

https://twitter.com/Jason_To/status/1764631181734076612

Many pro-direct instruction folks are using a recent article from BNN as evidence against inquiry-based learning, thinking classrooms, etc.

I respect these people as educators who, like me, want what's best for students.

But, let's dig into what this study actually tells us. https://t.co/m9EY14Rbw0

— Jason To | 杜澤信 (@Jason_To) March 4, 2024

Get ready for PiDay with my collected Pi resources
Curriculum Tags: All
https://ca.pinterest.com/davidpetro314/pi-day/

Need some #PiDay resources?

Here is my collection including the hidden reference to Pi in the @RollingStones logohttps://t.co/PPVZPnsta8#MathChat #MTBoS #iTeachMath pic.twitter.com/fU1OHkMOKd

— David Petro (@davidpetro314) March 8, 2024

Video/Audio Links

I maybe a Desmos boy now but I used to be a TI boy so I still appreciate tips like this
Curriculum Tags: All
https://twitter.com/TICalculators/status/1763674911896183231

😮 Bet you didn't know this one. Split Screen?! 🤯🤯🤯#Iteachmath #math #teachertwitter #tips #mathnerd #mathstudent pic.twitter.com/Ec2ciacGXZ

— Texas Instruments Education (@TICalculators) March 1, 2024

Some Pi Day podcast stories
Curriculum Tags: All
https://twitter.com/storycollider/status/1765678904537149822

In honor of #PiDay, tomorrow's episode @DarthScience & @professorteds whisk you away on a journey filled with math and pastry. No matter if you're calculating circumference or slicing into a sweet treat, there's always a story to be savored. Listen wherever you get your podcasts! pic.twitter.com/G7351sfdgV

— The Story Collider (@storycollider) March 7, 2024

I'm a big fan of using zeros to subtract with integers
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/howie_hua/status/1765892156873662575

We don't always have to rely on "two negatives make a positive" when subtracting negatives. Here's another way to think about it. pic.twitter.com/FU84rlO4RO

— Howie Hua (@howie_hua) March 8, 2024

Image Links

Here is a grab from their more interactive mathematician resource 
Curriculum Tags: All
https://twitter.com/MathigonOrg/status/1763580073800577495

Next Friday is International Women's Day and is a good day to explore our all-female version of our timeline of mathematics. Can you find the mathematician with an Erdős number of 1? Download at https://t.co/VZjByDDSpO pic.twitter.com/9mwgivSuQB

— Mathigon (@MathigonOrg) March 1, 2024

How could you do on this?

Curriculum Tags: All
https://twitter.com/Anthony_Bonato/status/1764641712247394344

How would you fare in this Harvard math entrance exam? The exam was given in 1869, so no calculators allowed! pic.twitter.com/fCycZk1QrC

— Anthony Bonato (@Anthony_Bonato) March 4, 2024

Some nice proportional reasoning here
Curriculum Tags: MTH1W
https://twitter.com/gunsnrosesgirl3/status/1765471306764427691

What do you think? pic.twitter.com/kFoP8M5n41

— Science girl (@gunsnrosesgirl3) March 6, 2024

Even if you didn't make a slow reveal graph out of this, I think it would still be a good discussion with students about how long they take their showers. 
Curriculum Tags: MDM4U
https://twitter.com/davidpetro314/status/1766070035779391750

Hey @jennalaib this looks like a great candidate for a slow reveal graph https://t.co/JByZBUNYhi

— David Petro (@davidpetro314) March 8, 2024

    

Math Links for Week Ending Mar 1st, 2024

Featured Links

I like a little app like this for practice. We are all interested in multiple representations of linear relations. So it's nice to have a practice problem like this with randomized problems and constraints. 
Curriculum Tags: MTH1W
https://www.geogebra.org/m/xhkdam8n

Check out this interactive @geogebra applet where ss can #MathPlay🧮 with slope (rate of change) by comparing different representations for it🏎️🏁 #ITeachMath #MTBoS #STEM #MathIsFun #MathChat #MathRocks #Math #Maths #EdChat #EdTech

🔗https://t.co/9yYz4sNqGN pic.twitter.com/xg6Mzc5gYp

— Libo Valencia 🧮 MathPlay (@MrValencia24) February 28, 2024

Resource Links

The latest "Classic" set of @NCTM calendar problems
Curriculum Tags: All
https://karendcampe.wordpress.com/2024/03/01/march-calendar-problems-2/

New blog post! March Calendar Problems. #MTBoS #iTeachMath #T3Learns #ProblemSolving #RecreationalMathhttps://t.co/6YR7gQApNM

— Karen Campe (@KarenCampe) March 1, 2024

This could be a great starter in any math class to help with basic calculations but beyond that it's a cool property
Curriculum Tags: All
https://twitter.com/MathsEdIdeas/status/1763342511731306536

1
=
1×1×1

512 =
(5+1+2)×(5+1+2)×(5+1+2)

4913 =
(4+9+1+3)×(4+9+1+3)×(4+9+1+3)

5832 =
(5+8+3+2)×(5+8+3+2)×(5+8+3+2)

17576 =
(1+7+5+7+6)×(1+7+5+7+6)×(1+7+5+7+6)

19683 =
(1+9+6+8+3)×(1+9+6+8+3)×(1+9+6+8+3)

The Dudeney numbers.
There are no more.

— Maths Ed (@MathsEdIdeas) February 29, 2024

Video Links

I like these Pythagorean area examples. You can either watch the videos or doing them yourself by using the Polypad file
Curriculum Tags: Gr8, MTH1W
https://polypad.amplify.com/p/1WoDPrt32RJPqg

Explore! 👉 https://t.co/JrRC8GOLvE @Amplify @MathigonOrg @desmosclassroom #MTBoS #ITeachMath pic.twitter.com/11EgcTLbg8

— Tim Brzezinski (@TimBrzezinski) February 28, 2024

Images Links

I'm always up for a good tessellation. 
Curriculum Tags: All
https://twitter.com/RobFathauerArt/status/1761090417796223026

Lovely tiling spotted in the bar at the Ritz Atlanta pic.twitter.com/m3LOfnOlm5

— Robert Fathauer (@RobFathauerArt) February 23, 2024