Math Links for Week Ending Jan 28th, 2022

Featured Links

I am always looking for new structures to employ in math class and I am particularly interested when someone else does all the work in creating examples. That being said, I like this one called Same but Different. And as you can see, the general idea is that you show a picture of two things and ask "What is the same? What is different?" and then the thinking occurs. On the site, created by LooneyMath, you'll find may examples from all grade levels and subject areas in math. Thanks to @MrValencia24 for pointing this one out. 
Curriculum Tags: All
https://www.samebutdifferentmath.com/

Resource Links

This is not really math related (well, you could argue that it is) besides those of you who like @Desmos and have little kids, if you create your own activities, anything @Von_Oy does is worthy of copying just so you can see how it works. 
Curriculum Tags: All
https://twitter.com/von_Oy/status/1487190234551013383

For all the friends of @Desmos who have or know little kids: I have some activities for them to enjoy! It's a little set I add to occasionally.https://t.co/XcSJZeQg3d pic.twitter.com/cTiYmzsP1n

— Suzanne von Oy (@von_Oy) January 28, 2022

Though I'm not a fan of worksheets, in general. I really like this representation of equivalent ratios. So take what you want from it (even if it is a worksheet).
Curriculum Tags: Gr7, Gr8, MTH1W
https://mathsbot.com/printables/boxes

New: Printable proportion boxes/ratio tables/arrow diagrams...https://t.co/FioC51QPgc pic.twitter.com/chrUG7qcEj

— Jonathan Hall (@StudyMaths) January 22, 2022

Though I think you could just do this as a simple @OpenMiddle type question. I always appreciate how @MathEqualsLove makes things a bit more tactile. 
Curriculum Tags: MPM2D, MFM2P

https://mathequalslove.net/open-middle-style-problem-for-equations/

Check out this Types of Solutions to Equations Activity here: https://t.co/Cb8A5wX675 #mtbos #iteachmath https://t.co/eknns3qYlQ

— Sarah Carter (@mathequalslove) January 22, 2022

I really appreciate all the different representations in this activity to introduce relations and function notation. 

Curriculum Tags: MCR3U
https://twitter.com/TheErickLee/status/1486333726250389510

A @desmos activity for introducing relations, different ways to represent a relation and linear relationships (Math 10 Unit 5 RF04). #HRCEmath #ITeachMath https://t.co/OEjCGPdUIv pic.twitter.com/jRJZfi07Kv

— Erick Lee HRCE Math (@TheErickLee) January 26, 2022

Video Links

You could connect similar triangles and Pythagorean Theorem (among other things) in this cool application of math video 
Curriculum Tags: MTH1W, MPM2D, MFM2P
https://www.youtube.com/watch?v=kwrDX5qkwvA

Adding zero is one of my favourite math strategies. 
Curriculum Tags: All

https://twitter.com/howie_hua/status/1486872693987184644

New TikTok video: Can I just say how amazing adding 0 is? pic.twitter.com/8HjNaNX0lp

— Howie Hua (@howie_hua) January 28, 2022

Image Links

A quick @OpenMiddle problem for adding and subtracting integers
Curriculum Tags: Gr7, Gr8
https://twitter.com/robertkaplinsky/status/1487209630551916545

If your students are learning about adding and subtracting integers, then you'll want to check out this @openmiddle problem from @MullenJeanmariehttps://t.co/8XHvHwEems #iteachmath pic.twitter.com/YE7ljxGC1K

— Robert Kaplinsky (@robertkaplinsky) January 28, 2022

    

Math Links for Week Ending Jan 21st, 2022

Featured Links

Are you playing Wordle? I few weeks ago I posted some data on the game. Well now there are a couple of math centric Wordle knock offs.
Curriculum Tags: All
https://mathszone.co.uk/resources/grid/ooodle/
https://www.mathspad.co.uk/i2/teach.php?id=timesTableSequences

Have a go at Ooodle too. An order of operations version of wordle https://t.co/uyuhMexA8u pic.twitter.com/2ZR3A5WB5z

— Mark Weddell (@markfromlondon) January 20, 2022

Resource Links

Do your kids need practice with inverse trig functions in radian mode? 
Curriculum Tags: MHF4U
https://twitter.com/TimBrzezinski/status/1481802599355625478

Evaluating inverse trig functions at special ratios: Super quick formative assessment via @geogebra : https://t.co/fscrfhQrn8 & https://t.co/7shYuKOgUe. #MTBoS #ITeachMath #trig #geometry #precalculus pic.twitter.com/0Dq7GFq4Fi

— Tim Brzezinski (@TimBrzezinski) January 14, 2022

Puzzles dealing with reenforcement of the area of triangles. Why not?
Curriculum Tags: All
https://mathequalslove.net/sankaku-puzzles/

I recently re-discovered these Sankaku Puzzles from Naoki Inaba, a prolific Japanese puzzle creator.

The Goal: Connect three dots to form a triangle with the specified area.https://t.co/sMhy4Pk8jE #mtbos #iteachmath #puzzlingclassroom pic.twitter.com/0TNyw77sed

— Sarah Carter (@mathequalslove) January 21, 2022

Opinion Links

When a context is a pseudo context it's not really a context. 
Curriculum Tags: All
https://twitter.com/fawnpnguyen/status/1484241483553120256 

I dislike these so much.

Both pieces came from the same freakin pizza? pic.twitter.com/u251rznEpo

— Fawn Nguyen (@fawnpnguyen) January 20, 2022

Video Links

Conic sections are out of the Ontario curriculum now but any time I can feature a video with Cliff Stoll, I'm gonna do it. And if you haven't heard the @Numberphile podcast episode with Cliff, it's literally one of my favourites. And of course, get your Kline bottle from him too. 
Curriculum Tags: All
https://www.youtube.com/watch?v=m0LVEvtjK4M

Image Links

When you look at this without considering the sum of a series, it seems like it could be tough. But maybe don't give that hint. 
Curriculum Tags: MCR3U
https://twitter.com/pickover/status/1484538484266344452

Mathematics.

A mathematician emerges from a cave, hands you the slip of paper below, and says "Can you find any non-trivial integer solutions for this alluring equation?" What is your response? pic.twitter.com/hS541MRz5A

— Cliff Pickover (@pickover) January 21, 2022

    

Math Links for Week Ending Jan 14th,

Featured Links

I am a big fan of other people's lists of resources. In this one @MathHombre has a set of playful math resources. I think my favourite one is the dynamic geometry set of Set cards. But there is way more here. Check it out if you want to play with some math. 
Curriculum Tags: All
http://mathhombre.blogspot.com/2021/12/playful-math-education-151.html

Resource Links

Even though you had to be an OAME member to see @HTheijsmejer and @DuffyRichard73's session titled Integers: Beyond the Rules, here's a few screenshots from @RiversoMaria that give you a flavour and can get you started. 
Curriculum Tags: Gr7, Gr8
https://twitter.com/RiversoMaria/status/1481604157618507789

As part of the @OAMEtalks series, @HTheijsmeijer & @DuffyRichard73 shared a variety of suggestions that can support Ss to understand & work with integers. ✅ Quick image dot talks ✅ Mental math mini-lessons ✅ Using visuals and puzzles. Great session! TY #mathchat pic.twitter.com/Pa1YKTlsQQ

— Maria Riverso (@RiversoMaria) January 13, 2022

Video Links

I don't think we can have too many videos about Algebra. This is a few years old but I just saw it for the first time.
Curriculum Tags: All
https://www.youtube.com/watch?v=sAxWF_W6Q9w

Image Links

Truth
Curriculum Tags: All
https://twitter.com/howie_hua/status/1479978449611608065

How 2 feels being the only even prime: pic.twitter.com/FxWCMrFkrk

— Howie Hua (@howie_hua) January 9, 2022

Who doesn't like a good imaginary number joke?
Curriculum Tags: MCR3U, MHF4U
https://twitter.com/pickover/status/1480015967535181827

This is a mathematics joke. https://t.co/QwVDUUMtAV pic.twitter.com/J1ipuSDgsk

— Cliff Pickover (@pickover) January 9, 2022

    

Math Links for Week Ending Jan 7th

Featured Links

It's always good when someone else does the heavy lifting for you. In this case @JordanRapport has got a pile of math choice boards for elementary math class. Check them out
Curriculum Tags: All
https://drive.google.com/drive/folders/17RmRcUasj8ZxAkNvWGnIoTFdmOlbr-pB

I can just about quote this entire tweet in its entirety :( Please share as a source of support for friends and colleagues. #mtbos @pgliljedahl @TheMentoree @MakeMathMoments @MingHuang_OCT @MrSoclassroom @Jason_To @ZackTeitel @RebeccaZaiontz @_CrystalMWatson @Mathgarden @HKhodai https://t.co/WcHHfiCADC

— Jordan Rappaport (@JRappaport27) January 3, 2022

Resource Links

Making puzzles with balance scales using @Mathigon
Curriculum Tags: All
https://twitter.com/MathigonOrg/status/1477656000555540486

Welcome students back to school by having them create a balance scale puzzle about themselves. Students can then solve their classmates' puzzles. Learn how at https://t.co/zDVhvtkV2c#math #mtbos #mathchat #edchat pic.twitter.com/kkCXIh7OwT

— Mathigon (@MathigonOrg) January 2, 2022

I like when other people post their favourite math stuff. This time it's @MathEqualsLove. I think my favourite in this post is the Panda Squares puzzle. 
Curriculum Tags: All
https://mathequalslove.net/monday-must-reads-volume-95/

Volume 95 of Monday Must Reads features the brilliance of @mrcolemansaur @KrumbachTricia @ONeillTeaches @Math_efki @Fouss @DavidKButlerUoA @JustinAion @MrsTenEyck and @ktemjackson.

Check out their amazing ideas here: https://t.co/movSVQQECI https://t.co/xdX0ytBsaD

— Sarah Carter (@mathequalslove) January 4, 2022

You can count on @TimBrzezinski to creating so many interactives that use the OpenMiddle concept. In this case, slope, distance between points and midpoint.
Curriculum Tags: MPM2D
https://twitter.com/TimBrzezinski/status/1479079188565008388

Here's a more challenging version of an @openmiddle distance, MP, slope exercise: Using digits -9 to 9 no more than 1x each, position A, B, and the MP so that no two digits on the right side have the same absolute value: https://t.co/LrWwMoZvRn @geogebra @robertkaplinsky #MTBoS pic.twitter.com/vsFA36zeZh

— Tim Brzezinski (@TimBrzezinski) January 6, 2022

Video/Audio Links

OAME members can sign up still for this week's OAMEtalks webinar on "Integers: Beyond the Rules" from @HTheijsmeijer & @DuffyRichard73 but everyone else can get a small taste of it on this month's podcast. 
Curriculum Tags: Gr7, Gr8, MTH1W
https://talks.oame.on.ca/season-4

It's amazing what a bit of shuffling can do to come up with another formula for area.
Curriculum Tags: MTH1W, MPM2D
https://twitter.com/MagicPi2/status/1477528481865084929

Area of a Regular Dodecagon#mtbos #iteachmath #Maths #math pic.twitter.com/eh4fNuZiIZ

— Idan Tal (@MagicPi2) January 2, 2022

I love that the hips are stationary here. Regardless, you could probably do something relating to linear relations with this one
Curriculum Tags: MTH1W
https://twitter.com/pickover/status/1478163285644042241

Stepping toward infinity, in a journey to eternity.

Mathematics comes alive, via a set of rigid linkages. [Video by 上木 敬士郎 (Keishiro Ueki, @ChocoLinkage), an expert in linkage animations.] pic.twitter.com/VomYfsrazj

— Cliff Pickover (@pickover) January 4, 2022

What a cool way to connect Pythagorean Theorem to properties of lines
Curriculum Tags: MTH1W, MPM2D
https://twitter.com/MagicPi2/status/1478978727375777792

Perpendicular lines have negative reciprocal slopes#mtbos #iteachmath #Math #maths pic.twitter.com/EftrTArPye

— Idan Tal (@MagicPi2) January 6, 2022

Image Links

I see so many people playing Wordle online. So it's not surprising that someone collected some data
Curriculum tags: MDM4U
https://twitter.com/MathTechCoach/status/1479019037359288323

#Wordle fanshttps://t.co/pOqhvjn8Gl pic.twitter.com/Gp56l4FGww

— Steve Phelps (@MathTechCoach) January 6, 2022