Math Links for Week Ending Apr. 24th, 2020

Featured Links
Hey, it's public knowledge now. Everyone knows that OAME 2020 was cancelled but what you don't know is that behind the scenes we've been working diligently to bring you a smaller version in the online setting. To that end we bring you OAME 2020 Virtual featuring 30 live sessions and over 20 pre recorded sessions on May 6-9th. When you register you will be registering for the conference but not picking sessions. We will just be sending you links each day for the day's sessions. The conference is free to all but the recordings (both live and pre recorded) will only be open to the public until the following Monday. Check out the full program and get registration details at the link below
Curriculum Tags: All
http://oame2020.ca/virtual-oame

Resource Links
Are you looking for some random generators, then grab a screen from @EliLuberoff's @Desmos activity. You have spinners and dice in various forms. Just grab the screen and go with your own activities.
Curriculum Tags: All
https://teacher.desmos.com/activitybuilder/custom/5e9c8983dbf73d1423bf215f

Ok, I got thoroughly nerd-sniped by @mpershan, @mburnsmath, and @MathMinds. Here are some editable starter screens with spinners (sorted and randomized) and dice (regular or sides with fractions):https://t.co/0oLnvGuPLO

[edit: sorry! original had a bad URL]

— Eli Luberoff (@eluberoff) April 19, 2020

Video Links
Though it might be true, I wonder if the perimeter stays constant. I'm thinking the metal might stretch. It looks cool though.
Curriculum Tags: MPM1D, MFM1P
https://twitter.com/mathemaniac/status/1059172074579587072

Same perimeter, different area. pic.twitter.com/A8hOQc2eRF

— Simon Pampena (@mathemaniac) November 4, 2018

So cool looking but I think some of those gears are stretching
Curriculum Tags: All
https://twitter.com/mathemaniac/status/1251570400200294402

Clockwork Fractal pic.twitter.com/JiKWB3c242

— Simon Pampena (@mathemaniac) April 18, 2020

I did a panel discussion this week and talk about some math related and other tools for online teaching but really I think the cool part of this was talking to @watnunu talking about her experiences currently teaching in China. And if you want, here's the slide deck
Curriculum Tags: All
http://k12.oliah.ca/webinar/webinar-3-high-school-education-wed-april-22-2pm-edt/

It looks like @3Blue1Brown is jumping into the online teaching game and one thing I liked about this was the answer to the question "When will I ever use this?" - "The movie Coco probably used the quadratic formula over a trillion times"
Curriculum Tags: MPM2D, MCR3U
https://www.youtube.com/watch?v=MHXO86wKeDY

Image Links
Some Covid-19 humour here. Thanks to @rinahyland for pointing this one out
Curriculum Tags:All
https://twitter.com/howie_hua/status/1253476512545693696

The pollution is so low that we can start to see the 1s that were once thought to be invisible. pic.twitter.com/6yNmBIOVas

— Howie Hua (@howie_hua) April 24, 2020

A few more from @DonFraser9
Curriculum Tags:All
https://twitter.com/DonFraser9/status/1251506245527375873
https://twitter.com/DonFraser9/status/1252372607019610113
https://twitter.com/DonFraser9/status/1252365035696873473

Saw this on twitter a few months ago ... I can’t seem to figure out why it works 😩😩😩 Extensions are fun! #MTBoS #iteachmath ⁦@paul_math⁩ ⁦@davidpetro314⁩ ⁦@Mathgarden⁩ ⁦@MathletePearce⁩ ⁦@MathforLove⁩ ⁦@AlexOverwijk⁩ ⁦@DanShuster⁩ pic.twitter.com/PciK51EFMj

— Don Fraser (@DonFraser9) April 18, 2020

Oh no !! I spilled my dice ... No point in crying over spilled dice ! What is a cool math activity I could do (Don't count picking them up !) #MTBoS #iteachmath ⁦@DrMaryReid⁩ ⁦@CathyMarksKrpan⁩ ⁦@davidpetro314⁩ ⁦⁦@davidwees⁩ ⁦@Mathgarden⁩ ⁦ pic.twitter.com/VuoILgLhUR

— Don Fraser (@DonFraser9) April 20, 2020

Gee .... This just arrived from a daughter who teaches in South Carolina #MTBoS #iteachmath ⁦@MathforLove⁩ ⁦@DanShuster⁩ ⁦@davidpetro314⁩ ⁦@Mathgarden⁩ ⁦@MathletePearce⁩ ⁦@paul_math⁩ ⁦@CathyMarksKrpan⁩ Why does this work? pic.twitter.com/xVr57RV6Tc

— Don Fraser (@DonFraser9) April 20, 2020

Math Links for Week Ending Apr. 17th, 2020

Featured Links
I have created a new page on this blog to highlight resources that focus specifically on two things:

1. matching Ontario Curriculum and
2. have ways to connect teachers to students

The three main things that fit these criteria are @ExploreLearning, @KnowledgeHook and I have organized over 40 pages of @Desmos activities to match the overall expectations for most of the grade 7-12 courses. And as an added bonus we have curriculum matched resources from @uWaterloo_CEMC and @PrepAnywhere
Curriculum Tags: All
https://ontariomath.blogspot.com/p/ontario-online-math.html

Resource Links
Here's another fun story full of memes from @JoelBezaire. This time with Pascal's Triangle. Don't forget to check the comments for the link to the teacher file.
Curriculum Tags: MDM4U
https://twitter.com/joelbezaire/status/1250792856211591174

Hey kids! Gather 'round the old laptop, because it's time for the 2nd edition of @Desmos AB Storytime!

Today, we're going to learn about a special triangle that's probably named after the wrong guy:https://t.co/JFT0OgVseG

— Joel Bezaire (@joelbezaire) April 16, 2020

Some more self checking vector equations activities from @Christophe_Sew. All in one collection
Curriculum Tags: MCV4U
https://twitter.com/Christophe_Sew/status/1251140674134478850




I know there is a lot of @Desmos this week but for those of you who want to take your skills to the next level, then check out this collection of  Intro to CL activities from @Jocedage.
Curriculum Tags: All
https://teacher.desmos.com/collection/5cacb59a0847cb0c70183e13


Video Links
Some fun three dimensional geometry
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://twitter.com/panlepan/status/1249042410941923331

I made a thing. One shape fits all. pic.twitter.com/5gCCCd75Wr

— Vincent Pantal🍩ni (@panlepan) April 11, 2020

Nice dynamic tessellation
Curriculum Tags: Gr7
https://twitter.com/SumDumThum/status/1249191914919931905

https://t.co/dtD0fuN6ZI pic.twitter.com/L3S0RVhE7r

— Andrew Osborne (@SumDumThum) April 12, 2020

Nice dynamic optical illusion
Curriculum Tags: MHF4U
https://twitter.com/GHSMaths/status/1249439069597245446

Logarithmic spiral gears

Based on this, from @matthen2: https://t.co/mI2PwL5gPghttps://t.co/UoYgaUZ6mw#mathart pic.twitter.com/w2FCXn05Y5

— Martin Holtham (@GHSMaths) April 12, 2020

Image Links
A whole bunch from @DonFraser9. I almost didn't get the magic square one
Curriculum Tags: All
https://twitter.com/DonFraser9/status/1250061734964006915
https://twitter.com/DonFraser9/status/1250132324513132545
https://twitter.com/DonFraser9/status/1250799843137794049
https://twitter.com/DonFraser9/status/1250810009853837313

Dazzle Your Students ... 5 more tricks can be found @DonFraser9 #MTBoS #iteachmath #mathchat @davidpetro314 @Mathgarden @MathletePearce @MaryBourassa @MathforLove @AlexOverwijk @CathyMarksKrpan @paul_math pic.twitter.com/MRAQTn7OR3

— Don Fraser (@DonFraser9) April 14, 2020

Square Root ! Can you algebra buffs ‘prove’ that this trick will work ? #MTBoS #iteachmath #mathchat @Mathgarden @MatthewOldridge @LareRomano @tstanky @MathletePearce @paul_math @davidpetro314 @MathforLove @MaryBourassa @DrMaryReid @FSlimati pic.twitter.com/lSMlUWlreS

— Don Fraser (@DonFraser9) April 14, 2020

“Fantastic” ? Why? #MTBoS #iteachmath #mathchat ⁦@MathletePearce⁩ ⁦@Mathgarden⁩ ⁦@davidpetro314⁩ ⁦@paul_math⁩ ⁦@MathforLove⁩ ⁦@tstanky⁩ ⁦@MaryBourassa⁩ ⁦@AlexOverwijk⁩ ⁦@Stephen_Hurley⁩ ⁦@CathyMarksKrpan⁩ ⁦⁩ pic.twitter.com/kXGIteRwhx

— Don Fraser (@DonFraser9) April 16, 2020

A simple activity extended into a pattern seeking exercise with a different choice of starting numbers #MTBoS #iteachmath ⁦@Mathgarden⁩ ⁦@MathletePearce⁩ ⁦@davidpetro314⁩ ⁦@paul_math⁩ ⁦@MaryBourassa⁩ ⁦@robertkaplinsky⁩ ⁦⁦@FSlimati⁩ pic.twitter.com/3CDzFUBO0K

— Don Fraser (@DonFraser9) April 16, 2020

Math Links for Week Ending Apr. 10th, 2020

Featured Links
There seems to be a lot of stress about how to assess students in these online times. With kids already being stressed about school work I'm not sure if stressing them about assessment is helping. However, we still have to figure out a way to do it. Well @JRuelbach has been the @Desmos spokesmodel for assessment for years and she's got some ideas for you whether it's this new Tweet about using the comment feature while allowing students to annotate their own work or her one hour Desmos session on assessment in general.
Curriculum Tags: All
https://twitter.com/jreulbach/status/1248357641300185088
https://www.youtube.com/watch?v=59NnV6GBCG8&feature=youtu.be

Students can submit written work to your @Desmos AB, and then sketch on it!! Then, you can write feedback to them.

I have been STRUGGLING with how long feedback was taking me on PowerSchool and Google Drive.

Students Submit Written Workhttps://t.co/rCbwUk44Iz pic.twitter.com/TxELDjmaP9

— Julie (@jreulbach) April 9, 2020

Resource Links
I love this "story" that @JoelBezaire created about why Root 2 is an irrational number. It's ultimately a walk through but he keeps it light and entertaining. You should take a look at this, if only to see all the work he did getting the memes into it.
Curriculum Tags: All
https://twitter.com/joelbezaire/status/1247978769467559938

Definitely stretching the purpose/usefulness of a @Desmos AB with this format. And it's DEFINITELY TBD how this lands on my P-A students.

But if you're interested in the teacher-facing side of this activity, here ya go: https://t.co/KlZq3ImKKO

— joelbezaire (@joelbezaire) April 8, 2020

Another new Feature on Desmos is one that we've been asking for for a while. That is, the ability to do some sharing between teachers. In this case, it's the ability to share dashboards between teachers. I think, given all this online learning, this would allow teachers to team teach during an online session.
Curriculum Tags: All
https://twitter.com/Desmos/status/1246176600955076608

📣 NEW FEATURE FRIDAY 📣

Ever since schools started closing you’ve been asking us for this one …

👫 Add co-teachers to your account!https://t.co/Luc44W4dlA pic.twitter.com/11fMxbKLFg

— Desmos.com (@Desmos) April 3, 2020

Finding good resources for working with vectors is sometimes tough. In this activity @Christophe_Sew give's students lot's of self checking practice with vector equations.
Curriculum Tags: MCV4U
https://twitter.com/Christophe_Sew/status/1248041497846579202

Check my first Self-Checking @Desmos activity: Vector Equation of a Line! https://t.co/wUKI5BhklP

Spent the last few days studying CL from @mrchowmath then put into to practice while stealing code from @jreulbach, @davidpetro314, @JennSWhite

— Mr. S (@Christophe_Sew) April 9, 2020

Could the stairway in this house be exponential? Take out your favourite modelling software and find out.
Curriculum Tags: MCR3U, MCF3M, MCT4C
https://twitter.com/davidpetro314/status/1246877936373747712

There is definitely an exponential modelling question buried in this "Stairway House" (or is there?) Finally something about exponentials that isn't about Covid-19https://t.co/zJSuK1tJ9f#MTBoS #iTeachMath #Mathchat pic.twitter.com/n6GIO3cQLd

— David Petro (@davidpetro314) April 5, 2020

Opinion Links
Sometimes knowing math isn't enough to talk the math of our current situation.
Curriculum Tags: All
https://twitter.com/ddmeyer/status/1247364831943917568

🍭 NEW POST 🍭

Math Has Prepared Me Poorly for This Pandemic

Is the same true for you? #iteachmath https://t.co/rkIR8ZBR12

— Dan Meyer (@ddmeyer) April 7, 2020

Video Links
Now that we are all online, you may want an easy way to show students math work in real time and specifically where you are almost like you are working on the same whiteboard together as if you are in class. To do this you can use a Google app like Jamboard and here's how
Curriculum Tags: All
https://www.youtube.com/watch?v=Rby3358N5f4

Who doesn't like a nice Fibonacci fractal image done live
Curriculum Tags: All
https://twitter.com/Ayliean/status/1247487373962817536

I found something cool last night!

✨🌻The Fibonacci Word Fractal🌻✨

And from now on when people say “the F-word” I’m gonna assume this is what they’re talking about.

Here I’ve used an array of 8 squares iterated 5 times to generate the 23rd iteration of the F-word fractal 😍 pic.twitter.com/Oq2yaghoT6

— Ayliean (@Ayliean) April 7, 2020

Image Links
@DonFraser9 has a few more puzzles for you
Curriculum Tags: All
https://twitter.com/DonFraser9/status/1246915553014566918
https://twitter.com/DonFraser9/status/1246837320873107456

OK OK ...Hang on for a minute ! Yes..Here is a fifth trick ... #MTBoS #iteachmath ⁦@paul_math⁩ ⁦@Mathgarden⁩ ⁦@MatthewOldridge⁩ ⁦@davidpetro314⁩ ⁦@CathyMarksKrpan⁩ ⁦@MathletePearce⁩ ⁦@MrOrr_geek⁩ ⁦@MaryBourassa⁩ ⁦@DrMaryReid⁩ pic.twitter.com/1YZw9bo8yI

— Don Fraser (@DonFraser9) April 5, 2020

Alright ! You asked for it .....the 4th trick! #MTBoS #iteachmath ⁦@Mathgarden⁩ ⁦@CathyMarksKrpan⁩ ⁦@paul_math⁩ ⁦@MatthewOldridge⁩ ⁦@DrMaryReid⁩ ⁦@MaryBourassa⁩ ⁦@MathletePearce⁩ ⁦@davidpetro314⁩ ⁦@MrsBedfordclass⁩ ⁦ pic.twitter.com/ACJyhBXUbR

— Don Fraser (@DonFraser9) April 5, 2020

A little bit of Pythagorean Theorem, a little bit of area and a little bit of solving simultaneous equations
Curriculum Tags: MPM2D
https://twitter.com/Cshearer41/status/1246713032560033793

All three of these rectangles have the same area. What is it? pic.twitter.com/RKmetTH9lQ

— Catriona Shearer (@Cshearer41) April 5, 2020

Math Links for Week Ending Apr. 3rd, 2020

Featured Links
All of these links have been featured on this blog over the years and even some summaries. But it's always worth it to see a new summary, especially when many of us are looking for help. In this case @ChrisHunter36 has packaged them as a nice visual clickable PDF. Follow the link to download yours.
Curriculum Tags: All
https://reflectionsinthewhy.wordpress.com/links/



Resource Links
You can always count on @MaryBourassa to help out the province by posting stuff she is doing in her class. As many of us are doing, we are scrambling to figure out what to keep and what to pitch in all of our courses. In this Google Doc, she's giving us a sense of how she's laying out her Grade 9 Academic course. And don't forget to click on the Twitter chat that follows in the comments.
Curriculum Tags: MPM1D
https://twitter.com/MaryBourassa/status/1245329093022879744

Here is a teacher version of my plan for #MPM1D for next week. I hope the links work. The check-in will ask how they are doing and will give them the space to tell me whatever they need to about their situation (I have already checked in with them all). https://t.co/5GgGgxYu2U

— Mary Bourassa (@MaryBourassa) April 1, 2020

And here she asks for advice and the discussion in the comments gives some insight
Curriculum Tags: MPM1D
https://twitter.com/MaryBourassa/status/1245078204123095047

Does anyone have good strategies for evaluating solving linear equations? I mean PhotoMath does it all so I'm trying to think of interesting questions that can demonstrate students' level of understanding. #MTBoS #whydowehavetogradethis

— Mary Bourassa (@MaryBourassa) March 31, 2020

A lot of companies are offering support in many different ways. In this case TI is giving free access to online courses for the next six months as well as free downloads of their IOS calculator apps until the end of April. So take advantage of these while they last. Thanks to @KSpry for pointing this out.
Curriculum Tags: All
https://education.ti.com/en/resources/online-learning-program


Video Links
This could be a good visualization for talking about a converging series.
Curriculum Tags: MCR3U, MCV4U
https://twitter.com/panlepan/status/1243523371549241344

This is so satisfying... pic.twitter.com/bCuVCVpcej

— Vincent Pantal🍩ni (@panlepan) March 27, 2020

It wouldn't be a math links post this week without some sort of Covid-19 link. This time it's two, first watch this video from @MinutePhysics about a log-log representation of Covid-19 data. This is new infections vs total infections. And the nice thing about this representation is that it makes it easy to see when things may be improving. And if you want to play around with this in a more dynamic way this graph is updated daily.
Curriculum Tags: MHF4U
https://www.youtube.com/watch?v=54XLXg4fYsc
https://aatishb.com/covidtrends/

Image Links
A couple of more from @DonFraser9
Curriculum Tags: All
https://twitter.com/DonFraser9/status/1244312168662695937
https://twitter.com/DonFraser9/status/1246239642594263043

Another fun trick ! Magic results ! Try a few times , look for patterns. #MTBoS #iteachmath #mathchat ⁦@Mathgarden⁩ ⁦@MatthewOldridge⁩ ⁦@paul_math⁩ ⁦@MathforLove⁩ ⁦@MathletePearce⁩ ⁦@davidpetro314⁩ ⁦@MaryBourassa⁩ @CathyMarksKrpan⁩ pic.twitter.com/IFgRSbsBVC

— Don Fraser (@DonFraser9) March 29, 2020

Wow .... With an overwhelming number of requests (2) I am adding a third trick ... Don’t nix this trick! #MTBoS #iteachmath #MathChat ⁦@Mathgarden⁩ ⁦@MathletePearce⁩ ⁦@davidpetro314⁩ ⁦@paul_math⁩ ⁦@CathyMarksKrpan⁩ ⁦@MatthewOldridge⁩ ⁦⁦ pic.twitter.com/wL3xX8ICmv

— Don Fraser (@DonFraser9) April 4, 2020

And a nice geometry problem
Curriculum Tags: MPM1D, MFM1P
https://twitter.com/edsouthall/status/1243947312180867072

Two regular shapes. What’s the sum of the two pink angles? pic.twitter.com/NQDtx4Ddwo

— Ed Southall (@edsouthall) March 28, 2020