Math Links for Week Ending Jul. 31st, 2020

Featured Links

It's not too late to apply to the AFEMO/OAME Elementary Curriculum Project. We are looking for writers and other positions for curriculum resources and webinars for the new curriculum for grades 1-8. The deadline for applications is August 4th. So don't delay.

Curriculum Tags: All

https://twitter.com/OAMEcounts/status/1287173098547154950

OAME & AFEMO are happy to announce the elem math curriculum resource project. The project will involve producing resources to support implementation of elementary curriculum. Link to applications to participate: https://t.co/a4AkNWt9gVhttps://t.co/ZoIGKH8g0D pic.twitter.com/4eA8TT5X59

— OAME/AOEM (@OAMEcounts) July 25, 2020

Resource Links

There is a wealth of C19 data on the Interwebs. But finding one that houses all kinds of interactives, reports, articles and downloadable data sets for most counties is particularly useful. That's what you get with Our World in Data.  And of course, there is all kinds of data on other subjects too.

Curriculum Tags: MDM4U

https://ourworldindata.org/coronavirus

Because my wife and daughters are avid fans of @RuPaulsDragRace,and so by default, so do I (don't get me started on who should have won on the last season). And so my daughter pointed out this analysis of the lip sync battles from @GaytaScience today and I was pleasantly surprised that there is a whole host of other posts about using data science techniques to gain insight about LGBTQ+ experiences. So be sure to check those out.

Curriculum Tag: MDM4U

https://www.gaytascience.com/lip-sync-for-your-life/

A couple of interactives from @DPScher made with WebSketchpad. One on adding fractions on a number line, then another on adding and subtracting fractions on a number line. Both include a video tutorial on how to use them. 

Curriculum Tags: Gr7, Gr8

http://www.sineofthetimes.org/adding-fractions-on-a-number-line/

http://www.sineofthetimes.org/adding-and-subtracting-fractions-on-a-number-line/

Video Links

This is an old TED talk but it's new to me about using data analysis and machine learning to analyze NBA players. 

Curriculum Tags: MDM4U

https://www.ted.com/talks/rajiv_maheswaran_the_math_behind_basketball_s_wildest_moves

Image Links

The @BuildMathMinds 2020 Virtual Summit is free and it's this week. More than 20 speakers over the three days including Canadians @MarkChubb3, @Dr_Costello & @GCouros. Make sure you sign up. 

Curriculum Tags: All

https://buildmathminds.com/virtual-math-summit

Math Links for Week Ending Jul. 24th, 2020

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I feel like in this forum, I am preaching to the converted. But just in case some of you still aren't making Twitter a part of your math repertoire, I would like to point out that there are pedagogical discussions that start with a simple prompt. Here are a couple. Make sure you look at the comments for the discussion. 

Curriculum Tags: All

https://twitter.com/DavidKButlerUoA/status/1285770606261047297

https://twitter.com/howie_hua/status/1285638446426599425

Here's a question I just thought of, that was interesting to me:

Must a line with positive slope pass through the first quadrant?

— David Butler (@DavidKButlerUoA) July 22, 2020 

What is your favorite math misconception to discuss with your students?

— Howie Hua (@howie_hua) July 21, 2020

Resource Links

Here's a great, fun activity from @Desmos on scale diagrams. 

Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P

https://twitter.com/Desmos/status/1284156533664657410

🎉🎉Free activity day is back!
In "Scaling Machines” students create a shape and use different “printers” to copy their shape, but some are broken! https://t.co/VuM0fC7xrB pic.twitter.com/aUnpSakr3w

— Desmos.com (@Desmos) July 17, 2020

Video Links

Holy moly I want a 3D printer more than ever. Such cool geometry going on here. 

Curriculum Tags: All

https://www.youtube.com/watch?v=jpbIlfeZno8

I like these "If the _____ was 100 people....." data representations. And this can be used for more than just data. I think it could be used for proportional reasoning and percents as well.  This one is a few years old but it's the first time I've seen it so, here you go. 

Curriculum Tags: MDM4U, Gr7, Gr8, MPM1D, MFM1P

https://www.youtube.com/watch?v=QFrqTFRy-LU

I like this "test" video on the force produced by different sized screws (he says power but he really means force). It's more of a physics video but I think you can do some math stuff with rates and slope too. And it could also be used in a STEM setting. Plus the fact that this guy has some serious manufacturing skills. 

Curriculum Tags: MPM1D, MFM1P

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

Image Links

There are so many instances of bad data online about C-19 but to have an example right out of "How to Lie with Statistics" pushed out from an official state office, that's worth a conversation. 

Curriculum Tags: MDM4U

https://twitter.com/andishehnouraee/status/1284237474831761408

In just 15 days the total number of #COVID19 cases in Georgia is up 49%, but you wouldn’t know it from looking at the state’s data visualization map of cases. The first map is July 2. The second is today. Do you see a 50% case increase? Can you spot how they’re hiding it? 1/ pic.twitter.com/wAgFRmtrPk

— Georgia Person (@andishehnouraee) July 17, 2020

This was from last week's #MathPhoto20 theme of #measure

Curriculum Tags: All

https://twitter.com/davidpetro314/status/1285922036888539137

Was walking by the post office in my town the other day and saw this survey marker and thought it would be good for both the #circles and #measure themes of #mathphoto20#mathchat #mtbos #iteachmath pic.twitter.com/QNnGy9NJVr

— David Petro (@davidpetro314) July 22, 2020

Math Links for Week Ending Jul. 17th, 2020

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Are you looking for some resources to help with distance learning (who knows what the new year will look like)? Well the crew at Making Math Moments that Matter have a Guide to Distance Learning. 

Curriculum Tags:All

https://makemathmoments.com/from-a-distance/

Make Math Moments From A Distance: A Complete Guide To Teaching Remotely With The 3-Part Framework

👉 https://t.co/qXqrbtiU24 👈🏿#MTBoS #iteachmath #MathMomentMakers #edchat #edtech pic.twitter.com/xrPLn3LOXp

— Kyle Pearce (@MathletePearce) July 17, 2020

Resource Links

@HTheijsmeijer has updated her list of Indigenous Mathematicians and Scientist. This is definitely worth a look.

Curriculum Tags: All

http://modelthelearning.blogspot.com/2020/07/indigenous-mathematicians-and-scientists.html

Resource: Indigenous Mathematicians & Scientists https://t.co/u4H78Lp7y2

When this doc was posted to Twitter a few weeks ago, it was shared quite a bit, so perhaps it needed a "home." #MTBoS #iteachmath #mathchat

— Heather Theijsmeijer (@HTheijsmeijer) July 15, 2020

Video Links

I always love the detail that @StandupMaths takes in explaining the (seemingly) mundane things but even though this may seem mundane, I like the math that makes it possible.

Curriculum Tags: All

https://www.youtube.com/watch?v=7LKy3lrkTRA

Image Links

There is a lot of stuff out there about the efficacy of masks. Since there wasn't a lot of research about cloth masks for the general public before the pandemic, some are using that to attach their importance. But that is starting to change. Here @monachalabi has three (make sure you see them all) summaries of some recent research about masks (including cloth masks). 

Curriculum Tags: MDM4U

https://www.instagram.com/p/CCrDuKuF8jU/

View this post on Instagram

Wear a mask.

A post shared by Mona Chalabi (@monachalabi) on Jul 15, 2020 at 11:28am PDT

This would be a good question to provoke conversation when talking about probability 

Curriculum Tags: MDM4U

https://twitter.com/jamestanton/status/1283107165360840704

I know! This making the rounds. It's not a real qu on a quiz show, but it is a great qu. For starters: Does the qu have an answer, yet alone a correct one? If not, then B is the answer. (Hang on!) So there is an answer. But then ...? [Welcome to self-reference!] https://t.co/bJN059ogiO

— James Tanton (@jamestanton) July 14, 2020

This week's #MathPhoto20 theme is #measurement

Curriculum Tags: All

https://twitter.com/davidpetro314/status/1284278072125071361

This week’s #mathphoto20 challenge is about #measure. Guess what you #measure with a #sphygmomanometer ?#mathchat #mtbos #iteachmath pic.twitter.com/zeK3MxbVyD

— David Petro (@davidpetro314) July 18, 2020

Math Links for Week Ending July 10th, 2020

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Last week the Ontario Ministry of Education finally released the new grade 1-8 math curriculum. This week they've started to release some of the supporting resources. There three short overview videos on the curriculum, learning areas and support materials but the thing I like the most is the PDF document on High Impact Instructional Practices. I am sure there will be more to come but this is what we have right now. 

Curriculum Tags: All

https://www.dcp.edu.gov.on.ca/en/curriculum/elementary-mathematics/resources

Resource Links

I feel like this post from @JStevens009 is super timely. Given that most of use were teaching online for the first time at the end of last year (and may be doing the same was the new year starts). John takes us through the mistakes that he made and whether you made these same mistakes or not, it's worth a read to get set up for the new year. 

Curriculum Tags: All

http://www.fishing4tech.com/fishin-solo-blog/video-making-tips-what-not-to-do

Based on some moderate experience with video-making, I put together a quick list of things I learned to *not* do in the process. I'm open to more ideas to add to the list. Hopefully it helps someone out there:https://t.co/NqBysifW4I

— John Stevens (@Jstevens009) July 6, 2020

Video/Audio Links

Here's a great video that you could use to talk about proportional reasoning as well as visualizing big numbers. Thanks to @MrOrr_Geek for pointing this one out.

Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P

https://www.tiktok.com/@humphreytalks/video/6846087300493888773

@humphreytalks

UPDATE: Jeff Bezos Wealth Visualized in Rice 🍚 ##amazon ##rice ##jeffbezos ##billionaire ##money

♬ original sound - humphreytalks

Check out Nasa engineer @Dajae_Monae on NPR's Shortwave talking about mixing math and hip hop to teach math topics. 

Curriculum Tags: All

http://ontariomath.blogspot.com/p/podcasts.html

Image Links

Don't forget to take part in #MathPhoto20. This week's topic is angles. 

Curriculum Tags: All

https://twitter.com/davidpetro314/status/1281767844309544960

This week’s #MathPhoto20 topic is #angles and this shot comes from the fire tower at @RestoulePP #mathchat #mtbos #iTeachmath pic.twitter.com/00lgikGQfj

— David Petro (@davidpetro314) July 11, 2020

Math Links for Week Ending Jun. 3rd., 2020

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Woah, I am behind. Have you taken part in #MathPhoto20? Organized by @TheErickLee and @CarlOliwitter, this is a weekly math photo challenge. They started a few weeks ago and have a different theme each week. Check out the first few prompts and join the fun. Be sure to include the hashtag #MathPhoto20 and check out all the submissions on their website. This week's challenge is a mashup with @Anniek_p's #MathArtChallenge

Curriculum Tags: All

https://mathphoto20.wordpress.com/

Week 4 of #MathPhoto20 is here! This week is a collaboration with @anniek_p and the #mathartchallenge. Where do you see the connections between art and math? Visit https://t.co/HNJzOhO8us to check out the ongoing math art challenges. Try one (or more) and share your math art! pic.twitter.com/jCzRd3AB1d

— Erick Lee HRCE Math (@TheErickLee) July 2, 2020

Week 3 of #MathPhoto20 is here! Where do you see #circles and spirals? Check out https://t.co/M1KJQDum7C to see what others have posted. #MTBoS #ITeachMath pic.twitter.com/1IwFEV0E65

— Erick Lee HRCE Math (@TheErickLee) June 25, 2020

It's time for week 2 of #MathPhoto20! Look for six to celebrate the sixth year of the this challenge. Where do you see six as a quantity or numeral? Take photos and post using the hashtags #MathPhoto20 and #six. Follow along at https://t.co/kUfJRHxvTr #MTBoS #ITeachMath pic.twitter.com/vBCb3OMOcs

— Erick Lee HRCE Math (@TheErickLee) June 18, 2020

The Math Photo Challenge uses photos to reveal the intersection of mathematics, education and the world we see around us. To start #MathPhoto20 this year we challenge you to use a camera lens to reflect on #BlackLivesMatter. #MTBoS #ITeachMath pic.twitter.com/5KDn3ObjM7

— Erick Lee HRCE Math (@TheErickLee) June 11, 2020

Resource Links

Another activity with unlimited examples and unique, self checking practice for students. This time dealing with proportionalities to linear, quadratic and cubic functions. 

Curriculum Tags: MHF4U

https://twitter.com/Christophe_Sew/status/1278663214864240640

Direct Variation [Distance-learning @desmos]

✅UNLIMITED STEP-BY-STEP examples
✅Self-checking
✅Unique questions for each student

link: https://t.co/M4yRGNXcQD@davidpetro314 @Satvind99716093 #MTBoS #iTeachMath #mathschat #DistanceLearning pic.twitter.com/HrMNwfxUo1

— Mr. S (@Christophe_Sew) July 2, 2020

I really like this post from @ChrisHunter36 on the mixed use of imperial and metric units here in Canada. I know that our official switch to metric happened in the 70s, so I was a kid at the time. I started learning Imperial then moved to metric. I also live next to Detroit so I have watched a lot of US TV. All that being said, I am pretty fluent in both measurement systems. But it seems that who ever made these adds must expect everyone to bet that way. Read on. 

Curriculum Tags: All

https://reflectionsinthewhy.wordpress.com/2020/07/01/half-measures/

Video Links

I am mesmerized by these two animations

Curriculum Tags: All

https://twitter.com/satoshi_aizawa/status/1276847190053318659

https://twitter.com/satoshi_aizawa/status/1275386102111600641

pic.twitter.com/pXlc9VW46k

— ✕ (@satoshi_aizawa) June 27, 2020

pic.twitter.com/LlUw5r8ikg

— ✕ (@satoshi_aizawa) June 23, 2020

Image Links

It's time to make geometric connections to pasta with a book on that very subject. 

Curriculum Tags: All

https://twitter.com/clementinehazel/status/1277438184499093504

Created by a team of designers, ‘Pasta by Design’ book reveals the hidden mathematical beauty of pasta: its geometrical shapes and surfaces are explained by mathematical formulae, drawings and illustrations. pic.twitter.com/qMGwiYh4m5

— Math Lady Hazel 🇦🇷 (@clementinehazel) June 29, 2020

Math Links for Week Ending Jun. 26th, 2020

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Well it's out. The new Ontario elementary math curriculum, that is. It has been promised for years (the last change made was 15 years ago) and although the timing may not be ideal (in the middle of a pandemic) here it is and it is to be implemented in the fall. They also have a new digital platform for distribution which I am sure will be loaded up with other stuff in due time. 

Curriculum Tags: All

https://www.dcp.edu.gov.on.ca/en/curriculum/elementary-mathematics

Resource Links

What a great idea. Who else should be added here? And I am glad that @Anniek_p added a reminder of her great resource on Not Just White Dude Mathematicians in the comments 

Curriculum Tags: All

https://twitter.com/HTheijsmeijer/status/1276507345808314369

I've been working on a resource featuring Indigenous role models in math/science for our students. Here is the list I've started... Who else can be included? What information is missing? Any help would be greatly appreciated!https://t.co/Gq97qki1jc

— Heather Theijsmeijer (@HTheijsmeijer) June 26, 2020

Some great work here connecting dynamic geometry with functions 

Curriculum Tags: MCR3U

https://blogs.ams.org/matheducation/2020/06/15/a-geometric-approach-to-functions/

Excited that my colleagues and I were invited to write a guest blog post for the AMS on the connections between geometry and algebra. https://t.co/y05Vcv5JDx #mtbos #mathchat pic.twitter.com/vaR8Hj0mvW

— Daniel Scher (@dpscher) June 15, 2020

Opinion Links

There is still some time to weigh in on this poll by @MarkChubb3 on mathematical modelling. And don't miss out on the discussion in the comments. 

Curriculum Tags: All

https://twitter.com/MarkChubb3/status/1276163510930755586

Hey Ontario teachers. How would YOU define "Mathematical Modelling"? (Overall expectation C4)

Define it better for us too.#onted #iteachmath #MTBoS #iteachmath #onpoli

— Mark Chubb (@MarkChubb3) June 25, 2020

Video Links

It's always fun to see the cool things you can do with math and dynamic geometry

Curriculum Tags: All

https://twitter.com/SumDumThum/status/1274161310603735040

If you take 4 Hilbert curves and stick them together so that they form a loop, it's called a Moore curve.#mathart https://t.co/QnYT3b4qoB pic.twitter.com/PfTN0PbvIk

— Andrew Osborne (@SumDumThum) June 20, 2020

Image Links

Fun with fractions and circles here

Curriculum Tags: Gr8, MPM1D, MFM1P

https://twitter.com/MrJohnRowe/status/1273870837133701122

What fraction is shaded?@NatBanting, this blew my mind.#MTBoS #iTeachMath @FractionTalks pic.twitter.com/5bmIEHMxWi

— John Rowe 👨🏽‍🚀 (@MrJohnRowe) June 19, 2020

It turns out they've been playing Dungeons & Dragons for centuries.

Curriculum Tags: All

https://twitter.com/ArtifactsHub/status/1274005099413516290

20 sided die - Egypt 200 BC pic.twitter.com/CUOytqOb5r

— Museum Archive (@ArtifactsHub) June 19, 2020

Math Links for Week Ending Jun. 20th, 2020

Featured Links

We are all in a crazy state of things right now and the last quarter of the school year was not idea. But we will all be going back in the fall (in some form or another) and one thing is for sure. Students won't be prepared. So in this post, @MarkChubb3 has some tips (with the help of @TracyZager) of things to do and not to do when starting up in the September. 

Curriculum Tags: All

https://buildingmathematicians.wordpress.com/2020/05/21/how-not-to-start-math-class-in-the-fall-2020/

Resource Links

In this post @MathHombre lets one of his preservice teachers Maggie Eisenga using playing cards to help students practice basic math skills. It's a simple game and I think that is important. Making it too complex will be a turn off for kids. Having games like this in you "back pocket" to help students become fluent in math operations is a great alternative to worksheets. 

Curriculum Tags: All

http://mathhombre.blogspot.com/2020/05/choose-your-path-math-game.html

Do you like math? pentagons? art? If you answered yes to all of those questions then you will like this interview with Diane Davis on how she uses pentagons to make art and more. 

Curriculum Tags: All

https://blogs.scientificamerican.com/roots-of-unity/diana-davis-beautiful-pentagons/

Video Links

A couple of nice multiplication puzzles from @JamesTanton, One with multiplying fractions the other with multiplying whole numbers made of ones. Both with surprising results. Have your students try this to get your classes going. 

Curriculum Tags: Gr7, Gr8

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

https://www.youtube.com/watch?v=M4VaZ78N44Y

It's @MathletePearce's video on conceptualizing difference of squares for his @mathisvisual feed. Check the link out for all the details beyond the video

Curriculum Tags: MPM2D, MBf3C

http://mathisvisual.com/difference-of-squares/

Image Links

As always @MonaChalabi does a great job of visualizing ideas that revolve around social themes. In this case it's characterizing the demographics of people in NYC. Make sure you swipe get all the images. 

Curriculum Tags: MDM4U

https://www.instagram.com/p/CBTKeNNl4NZ/

View this post on Instagram

To understand racial inequality in this city, I spent months (and months!) drawing these 100 characters for a piece in @nytopinion today. When you think about who is most affected by Covid-19, you need to consider inequalities in housing, in access to healthcare, in wealth. And so much of that ends up consistently affecting people of color. You could think of it as overlapping circles in a Venn diagram. Or, you could look at these 100 people. I'm selling prints of these on my site monachalabi.com and donating all of the profits to Covid-19 rent relief for families (a fund organised by @theconsciouskid) Huge thank you to my brilliant former coworker @aflowers85 for checking my calculations, and Jessia Ma for animating all of this with precision and creativity. Source for designing these 100 characters: US Census Bureau (American Community Survey, 2017, 5 year estimates for race age sex and disability for New York Metropolitan Statistical Area)

A post shared by Mona Chalabi (@monachalabi) on Jun 11, 2020 at 8:13am PDT

I always like @JessicaHagy's graphs to help talk about related variables. In this case, this relates to my fascination with jumping ramps on my bike as a kid 

Curriculum Tags: MPM1D, MFM1P

https://thisisindexed.com/2020/05/you-dont-need-bangs/

And another one from @JessicaHagy

Curriculum Tags: MPM1D, MFM1P

https://thisisindexed.com/2020/05/the-rich-people-are-weirdly-calm/