Math Links for Week Ending Apr. 29th, 2022

Featured Links

I have heard @Trianglemancsd talk about this pattern machine that he's made and used at Math on a Stick at the Minnesota state fair (something I've wanted to go to since I've heard about it). It seems so tactile and fun and full of mathematical possibilities. Now you can have the patterns (though not the tactile experience). And creators @nhoskee and Beth Johnson have made it easy to share any pattern you make by having a copy button that allows you to paste easily into Twitter and other socials. 
Curriculum Tags: All
https://talkingmathwithkids.com/blog/pattern-machines-what-they-are-and-why-you-need-one/
https://talkingmathwithkids.com/mathonastick/
https://pattern-machine.com/

I'd like to share a lil project that beth johnson and I have cooked up! It's up and running at https://t.co/pNzoMLkLM1

🟨🟨🟨🟨🟨🟨🟩
🟩🟩🟩🟩🟩🟨🟩
🟩🟨🟨🟨🟩🟨🟩
🟩🟨🟩🟨🟩🟨🟩
🟩🟨🟩🟩🟩🟨🟩
🟩🟨🟨🟨🟨🟨🟩
🟩🟩🟩🟩🟩🟩🟩

— Chris Nho (@nhoskee) April 28, 2022

Resource Links

I really like Polypad (and you should too) and it just seems to get better and better. Check out this post from @GeoffKrall to get a sense of what you can do
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U
https://emergentmath.com/2022/04/20/delightful-data-visualization-polypad-and-young-statisticians/

Video Links

The popout of this tessellation pattern is kinda cool
Curriculum Tags: All
https://twitter.com/Ayliean/status/1518242474266869760

Papa Roach 🤝 Fractal Geometry pic.twitter.com/JtKVuQbStj

— Ayliean (@Ayliean) April 24, 2022

Image Links

Here's a combinatoric problem for you:
Curriculum Tags: MDM4U
https://twitter.com/bobloch/status/1519427018131128320

Hold my calls while I check a claim. pic.twitter.com/f48GwS4cgo

— Bob Lochel (@bobloch) April 27, 2022

A calculus meme for you
Curriculum Tags: MCV4U
https://twitter.com/pickover/status/1518216726697156610

Mathematics.

This humor, widely circulating on the Web, may appeal to mathematicians. pic.twitter.com/3qlz0LZVdo

— Cliff Pickover (@pickover) April 24, 2022

   

Math Links for Week Ending Apr 22, 2022

Featured Links 

I have definitely featured this site before but I think Would You Rather is a great math starter and @JStevens009 continues to add to the list of prompts. So if you haven't seen it before, now is the best time to start. 
Curriculum Tags: All
https://www.wouldyourathermath.com/would-you-rather-81/

Resource Links 

A couple of @MakeMathMoments activities featured on @MrOrr_Geek's site. These are full multi day lessons with all the videos and supports. The first is on linear patterns and the second is on data literacy (including misleading graphs)
Curriculum Tags: Gr7, Gr8
https://learn.makemathmoments.com/task/bird-migration/
https://learn.makemathmoments.com/task/olympics-revisited/

Video Links 

It's never too late to get started with @Geogebra. This primer is from @MrValencia24
Curriculum Tags: All
https://www.youtube.com/watch?v=p9w8luL-A6A

I love Cliff Stoll. And especially his manufacturing of Klein bottles. And now a Coke Klein bottle? So good.
Curriculum Tags: All
https://www.youtube.com/watch?v=q8Umr0BLMiU

Image Links 

It looks friendly but can you solve it?
Curriculum Tags: Gr8
https://twitter.com/pickover/status/1517324259030405121

Mathematics.

Find the missing angle. How did you find it? (Assume the horizontal lines are parallel.) https://t.co/yY4xd1uQvD pic.twitter.com/W6SrRD6HbA

— Cliff Pickover (@pickover) April 22, 2022

So beautiful
Curriculum Tags: All
https://twitter.com/pickover/status/1517323348564492288

Mathematics, geometry, beauty.

Sometimes, Persian symmetries are like a poem, a dream, or a prayer. Shiver. Nasir Al-Mulk Mosque in Shiraz. pic.twitter.com/eCdUwBH7lQ

— Cliff Pickover (@pickover) April 22, 2022

Math Links for Week Ending Apr. 15th, 2022

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I think that if you can give students a real world problem that they are also interested. And I think that many students think they are going to be YouTube stars or influencers but really have no idea what it takes. 
Curriculum Tags: Gr7, Gr8, MTH1W
https://robertkaplinsky.com/work/how-much-money-do-you-earn-for-1000000-streams-on-spotify/

Looking for a real world context for multiplying and dividing decimals? Check out my problem-based lesson called How Much Money Do You Earn For 1,000,000 Streams On Spotify?https://t.co/BULChRpJe8 pic.twitter.com/qJH2omFtRR

— Robert Kaplinsky (@robertkaplinsky) April 15, 2022

Resource Links

If you haven't tried Slow Reveal Graphs yet, you should. Check out @JennaLaib's site to see how you can engage students with data representations by slowly revealing the details of a graph. They have the slideshows all ready for you. Check this one about about eating at Chipotle.
Curriculum Tags: MDM4U
https://slowrevealgraphs.com/2022/03/18/how-many-calories-do-people-really-eat-at-chipotle/

Video Links

I think it's important to realize that what @Howie_Hua isn't talking about are "tricks" to doing math problems but understanding that although the standard algorithm may always get you the answer it's not always the way that demonstrates an understanding of the math. 
Curriculum Tags: All
https://twitter.com/howie_hua/status/1514393466993733632

New TikTok video: Why learn about other methods besides standard algorithms? pic.twitter.com/LALeHyD9bS

— Howie Hua (@howie_hua) April 14, 2022

Here's a real life situation involving independent events and play crashes from someone who's been in a plane crash. 
Curriculum Tags: MDM4U
https://twitter.com/Ayliean/status/1515052157258678289

If you were in a plane crash once…
would you be less likely to be in a plane crash again? ✈️

🌬 Asking for me! pic.twitter.com/mdXq2HZ9of

— Ayliean (@Ayliean) April 15, 2022

Image Links

I really like this fraction simplification problem
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/BehroozParhami/status/1514757890598350872

Math problem:
Evaluate this multi-level fraction. [Credit: SQRT, @mathisstillfun] pic.twitter.com/cGrAG6IJNY

— parhami@ece.ucsb.edu (@BehroozParhami) April 15, 2022

This may not be completely fleshed out but I am always in for a good idea
Curriculum Tags: MTH1W
https://twitter.com/MaryBourassa/status/1513623290169987076

Here's an idea I had for coding in #MTH1W. Create this "quilt" pattern. Great application of Pythagorean theorem. pic.twitter.com/YNuQSGW6fE

— Mary Bourassa (@MaryBourassa) April 11, 2022

Math Links for Week Ending Apr 8th, 2022

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Are you looking for some resources on Indigenous Mathematicians then you might want to follow the @IndigenousMath Twitter feed. Here are a couple of recent posts.
Curriculum Tags: All
https://indigenousmathematicians.org/

Indigenous Peoples Exists in Mathematics!!!

Learn more in this article written by one of the founders of the Indigenous Mathematicians Network, Dr. @KamuelaYong! This pieces appeared in the April 2022 issue of the Notices of the @amermathsoc.https://t.co/vaNvbmncAS pic.twitter.com/02PMC6xgpl

— Indigenous Mathematicians (@IndigenousMath) April 4, 2022

First up is an interview with Craig Young from Tséch’ízhí, Arizona. He was nominated recently for the Presidential Award for Excellence in Mathematics & Science Teaching. Craig is Honágháahnii.https://t.co/qR7eSWBdKp pic.twitter.com/Qti4IczvFb

— Indigenous Mathematicians (@IndigenousMath) April 5, 2022

Resource Links

Do you want some laser cut conic sections? Who doesn't? Get them here:

Curriculum Tags: MCR3U
https://twitter.com/Trianglemancsd/status/1511486154645848064

Hey algebra teachers and those who work with algebra teachers!

Do YOU want a (free!) conic sections model? Or even better, a set of them for the teachers in your building or district or at your conference?

Get in touch with @MathHappensOrg ! (Links in next tweet) pic.twitter.com/JgU2AxXTTi

— Christopher Danielson (@Trianglemancsd) April 5, 2022

I have always loved this problem and so I am super glad there is a @Mathigon version. The extra thick outlines do a good job of hiding why this works
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/MathigonOrg/status/1512075248497176585

Can you figure out what's causing the area of these shapes to change even though they are just being rearranged? Try it for yourself and see if you can explain the paradox at https://t.co/tffSsVepZf pic.twitter.com/YKLCcYtW7x

— Mathigon (@MathigonOrg) April 7, 2022

Video/Audio Links

Some more @Howie_Hua videos including the idea of looking at algebra, not through procedures but through understanding, how to pronounce the name of words that end with "-ogonal" and the idea that kids don't really hate math
Curriculum Tags: All
https://twitter.com/howie_hua/status/1510727522966642689
https://twitter.com/howie_hua/status/1512195263170981904
https://twitter.com/howie_hua/status/1511499024804712451

New TikTok video: Don't get lost in the procedures pic.twitter.com/ei3VCxliVL

— Howie Hua (@howie_hua) April 3, 2022

New TikTok video: How to pronounce hexagonal, octagonal, and polygonal pic.twitter.com/Wl6QtfFGWA

— Howie Hua (@howie_hua) April 7, 2022

New TikTok video: 4 ways to minimize frustration in math pic.twitter.com/9eVrtn3rHf

— Howie Hua (@howie_hua) April 6, 2022

One of two new podcasts that I've added to my list of math related podcasts is The Podcast of Unnecessary Detail which is mostly about science but has some that feature math. Especially since one of the hosts is @StandupMaths. I love this podcast. It's very smart and funny. Check out the latest episode that features primes. 
Curriculum Tags: All
https://festivalofthespokennerd.com/podcast/

The second one has actually been featured here as videos but now is officially a podcast that will show up in your podcast feed. The Math Teacher Lounge features hosts @lockhartedu & @ddmeyer talking to other educators on math pedagogy based topics. This first episode features @Howie_Hua
Curriculum Tags: All
https://amplify.com/math-teacher-lounge

Image Links

Easter is coming and there is always math. What math do you see here?
Curriculum Tags: All
https://twitter.com/KristenMAcosta/status/1511418640947572738

I know my hubby loves me when he is sending me pics like this. #numbertalkimages #besthubby #mtbos #numbertalks #iteachmath pic.twitter.com/r2sm2cefEc

— Kristen M. Acosta (@KristenMAcosta) April 5, 2022

I am always up for a good Which One Doesn't Belong
Curriculum Tags: Gr8, MTH1W
https://twitter.com/TheErickLee/status/1511825421683281933

A #wodb discussion prompt for radicals. Students had lots of good justifications for why each might not belong. #ITeachMath @WODBMath https://t.co/f9WVnpnV9w pic.twitter.com/iiMiymhUc9

— Erick Lee HRCE Math (@TheErickLee) April 6, 2022

   

Math Links for Week Ending Apr 1st. 2022

Featured Links

I have featured the @MathisVisual site before but I am such a big fan of visual representations that I think it's worth another reminder. Here are two recent posts. One on visualizing the volume of a cylinder and one on equivalent ratios. They do a really good job of conceptualizing each of the topics they choose while giving you, the teacher, as many prompts as possible about how to present the topic. 
Curriculum Tags: All
https://mathisvisual.com/
https://mathisvisual.com/volume-of-a-cylinder/
https://mathisvisual.com/revealing-equivalent-ratios-by-scaling/

Resource Links

The problem of related rates is not a new one for calculus and the standard examples of cars driving away from each other at right angles or shadows growing over time are common in calculus classes. That being said, I like the approach that @TheEricLee has taken here by actually giving hands on stations and experiments for students to do that match these classic problems. The shadow one is my favourite
Curriculum Tags: MCV4U
https://pbbmath.weebly.com/blog/hands-on-related-rates

Video/Audio Links

I always appreciate a good "which is the better deal?" problem.
Curriculum Tags: Gr7, Gr8
https://twitter.com/howie_hua/status/1509322077014167557

New TikTok video: Which one is the better deal? Would you rather apply the discount first or get taxed first? pic.twitter.com/74CT1XDsFV

— Howie Hua (@howie_hua) March 31, 2022

In our last @OAMEtalks podcast for the season, we ask each of our previous guests: "What they were doing online that they will continue to do as we move back to face to face?". Here are their responses:
Curriculum Tags: All
https://talks.oame.on.ca/season-4

Image Links

As a big fan of the quadratic formula I'm down with this meme
Curriculum Tags: MCR3U, MHF4U
https://twitter.com/howie_hua/status/1508569706046754816

Quadratic formula meme pic.twitter.com/izn0AJkgfU

— Howie Hua (@howie_hua) March 28, 2022

I do this all the time. My favourite is to "square numbers around 50 in my head" by using (50 + n)(50 + n) = 2500 + 100n + n2
Curriculum Tags: MPM2D, MFM2P, MCR3U, MCF3M, MBF3C
https://twitter.com/howie_hua/status/1508961572437196803

I like showing how polynomial multiplication can help us with mental math. If you know (x-1)(x+1)=x^2-1, what is 29*31? What is 19*21? What is 39*41? pic.twitter.com/xUrXLWsEg1

— Howie Hua (@howie_hua) March 30, 2022