Math Links for Week Ending Jul. 16th, 2021

Featured Links

If you follow Ontario math at all this week then you know that a bomb dropped in the area of equity and culturally responsive curriculum. That is, somehow, some of the language about these things that was in the front matter of the new grade 9 curriculum was quietly stripped out. However, people noticed. You can see exactly what the changes were in this Tweet and the associated comments (some of the comments further down the list as well). And even though this directly affects the current Gr 9 curriculum, this really affects all future curriculums. Let your local MPP know that you are not OK with this. 
Curriculum Tags: All
https://twitter.com/realJ_Mitchell/status/1415285871415373831

This entire section of the front matter to the grade nine math curriculum appears to have been removed.
Why?
Because some far right politicians got upset.
Why are they driving #OntEd curriculum?

YOU should care about this deletion, even if you don’t teach math. pic.twitter.com/xtZTMy6d9y

— Jamie Mitchell (@realJ_Mitchell) July 14, 2021

Looking at a side-by-side comparison of the original #OntEd destreamed math front matter and the edits that were released yesterday.
The edits are evil.
Dive into the thread if you are interested.

— Jamie Mitchell (@realJ_Mitchell) July 14, 2021

Resource Links

It's always nice to have a list of "go to" sites for resources. This list was curated by @JRappaport27. You an also see my list on this blog in the Best of the Web tab. 
Curriculum Tags: All
https://twitter.com/JRappaport27/status/1415702732124590081

I took a group of educators through a resource share this morning. All are linked and included in each slide is an overview and types of tasks found in each. Please share with anyone who might find this useful. #mtbos #iteachmath @fawnpnguyen @OAMElearns https://t.co/x2THNyjZhm pic.twitter.com/reU3esKlTH

— Jordan Rappaport (@JRappaport27) July 15, 2021

I like these two from @MathTechCoach on probability. This first one on randomness
Curriculum Tags: Gr7, Gr8, MDM4U
https://twitter.com/MathTechCoach/status/1413970469334798337

If you were unable to attend my session on Intuition, Simulation, Calculation: Teaching About Randomness, Variability, and Probability, here is a link to the recording.https://t.co/GMZEN9moV6
and the activity in Desmos https://t.co/8Ty6BRKKyq and GeoGebra https://t.co/MUWLsf0GCz

— Steve Phelps (@MathTechCoach) July 10, 2021

And I really like this one that is dealing with the idea of informal language with probability. It would be a great activity to use when just starting out.
Curriculum Tags: Gr7, Gr8, MDM4U
https://twitter.com/MathTechCoach/status/1414294401380241416

Thanks to the more than 100 folks who gave this a try.

Here is the teacher link for those interested: https://t.co/RSIkZA6ogl https://t.co/DYHOR5gD9k pic.twitter.com/Uaag3i5sf6

— Steve Phelps (@MathTechCoach) July 11, 2021

Opinion Links

And I would have been shocked if @MathGarden wouldn't have weighed in on this week's curriculum shenanigans. Given the title: "White Supremacist Ideology Influences Ontario Math Curriculum: Outcome is Inferior Mathematics." he clearly lets the people in power have it. Too bad they likely won't see this.
Curriculum Tags: All
https://sunilsingh-42118.medium.com/white-supremacist-ideology-influences-ontario-math-curriculum-outcome-is-inferior-mathematics-39ab900ed91d

Video Links

A nice video and interactive from @TimBrzezinski on the area of a Trapezoid
Curriculum Tags: Gr7, Gr8
https://twitter.com/TimBrzezinski/status/1413662639830482947

Following in the spirit of today’s Twitter convo inspired by @Sneffleupagus , here’s one for the area of a trapezoid: https://t.co/a2UqqyJclq @geogebra #MTBoS #ITeachMath #math #geometry #MathChat #geomchat pic.twitter.com/lhcXOgYWKu

— Tim Brzezinski (@TimBrzezinski) July 10, 2021

And this time one for the area of a triangle
Curriculum Tags: Gr7, Gr8
https://twitter.com/TimBrzezinski/status/1413307284369854464

Inspired by @Sneffleupagus : Another @geogebra resource through which Ss can explore areas of triangles: https://t.co/8rtitlwZyd #MTBoS #ITeachMath #geometry #math #maths pic.twitter.com/gllzYk4Ppg

— Tim Brzezinski (@TimBrzezinski) July 9, 2021

And here is another triangle area video and interactive
Curriculum Tags: Gr7, Gr8
https://twitter.com/dment37/status/1414124122687381506

Puzzle for the area of the triangle (acute or obtuse)@geogebra
https://t.co/s8R8SUoBzg#geogebra #MTBoS #ITeachMath #math #maths #mathgif #MathEd @PerHenrikChris1
@Bancoche #geogebrart pic.twitter.com/N3SyJdla8x

— Daniel Mentrard (@dment37) July 11, 2021

One of the expectations in the new Ontario Gr9 curriculum is about circle properties. So this video and interactive would be perfect. 
Curriculum Tags: MTH1W
https://twitter.com/TimBrzezinski/status/1415121531374538758

Enjoy this inscribed angle dance made in @Desmos!

Still have a couple of items to fix, but I’m happy with the way it works so far: https://t.co/COHT8E7814 @AlgebraDesmos @eluberoff #MTBoS #ITeachMath #math #geometry #MathChat pic.twitter.com/DePLEbuwjb

— Tim Brzezinski (@TimBrzezinski) July 14, 2021

Image Links

Given that we had an equity issue here in Ontario this week, the week 6 theme of #MathPhoto21 seems particularly on point
Curriculum Tags: All
https://twitter.com/hashtag/MathPhoto21?src=hashtag_click&f=live

Week 6 of #MathPhoto21 starts today with #EthnoMath. Thanks to @NadineMcSpadden @nikkilineham @EduBirkett for your help getting the prompt together😊 pic.twitter.com/lk5KFBdYch

— Jess Kyle (@jesannwa) July 15, 2021

A nice tessellation 
Curriculum Tags: Gr7
https://twitter.com/PolygoniaDsgns/status/1413496457164955654

Silver, purple, blue Metallic ink, 1mm. Designed with the #upcoming nested "triads" #free tool. #math #art #vector #design #pattern #comingsoon #svg #plotter #plottertwitter #gold #geometric #geometricart #geometricjuly #plotparty pic.twitter.com/BPlkvQl61o

— Polygonia Designs (@PolygoniaDsgns) July 9, 2021

Here's a nice problem dealing with the area of circles. 
Curriculum Tags: Gr7, Gr8
https://twitter.com/fermatslibrary/status/1413119456532959233

The bull's eye illusion. At first sight the inner disk in the center may appear larger in area than the outer ring, but the two have the same area: (5²−4²)π=3²π pic.twitter.com/so9pFfMIxE

— Fermat's Library (@fermatslibrary) July 8, 2021

   

Math Links for Week Ending Jul. 9th, 2021

Featured Links 

Somehow I missed the beginning of #MathPhoto21. We are now in week 5 but you can see (and post about) the themes that have already come. One theme a week for 10 weeks. 
Curriculum Tags: All
https://twitter.com/hashtag/MathPhoto21?src=hashtag_click&f=live

It's time to kick off #MathPhoto21! During week 1, look for seven to celebrate the seventh year of the math photo challenge. Where do you see seven as a shape, quantity or numeral? Take photos and post to Twitter using the hashtags #MathPhoto21 and #seven. #MTBoS #ITeachMath pic.twitter.com/Fq66WSdoop

— Erick Lee HRCE Math (@TheErickLee) June 10, 2021

Week 2 of #MathPhoto21 is here! This week look for balance and #symmetry. Take photos and post to twitter using both #MathPhoto21 and #symmetry. #symmetrychat #MTBoS #iteachmath pic.twitter.com/h9uyckYu2k

— JoAnn Sandford HRCE Math (@joann_sandford) June 17, 2021

Check out this this week’s (Week 3) #MathPhoto21 challenge #circles take photos and post to twitter using both #MathPhoto21 and #circles #MTBoS #iteachmath #mathschat #MathsTalk pic.twitter.com/0BhGkqKGnf

— Cass Lowry (@cass_lowry) June 24, 2021

Check out this Week 4 of #MathPhoto21 challenge #lines.
Take photos and post to twitter using both #MathPhoto21 and #lines #MTBoS #iteachmath #mathschat #MathsTalk pic.twitter.com/dezLW40P9q

— Karen Campe (@KarenCampe) July 1, 2021

⏰for week 5️⃣ of #MathPhoto21! Where do you 👀#patterns? Take photos and share to 🐦using the hashtags #MathPhoto21 and #patterns. #MTBoS #ITeachMath #mathchat #visualmath pic.twitter.com/NPu3GhdJ6G

— Norma Gordon (@normabgordon) July 8, 2021

Resource Links 

If you've got Microbits in your class and you are doing some coding then you might want to try out this social distancing code
Curriculum Tags: Gr7, Gr8, MTH1W
http://brianaspinall.com/coding-a-microbit-social-distancing-app/

Coding A Micro:Bit Social Distancing App #CodeBreakerhttps://t.co/3012OPwdXV pic.twitter.com/a2gxBqGQjp

— Brian Aspinall (@mraspinall) July 3, 2021

A nice dynamic probability calculator
Curriculum Tags: MDM4U
https://twitter.com/geogebra/status/1412432802675576832

Statistics teachers:

📣 Our probability calculator now has a two-tailed option for all distributions! https://t.co/yQcFhdYC1W pic.twitter.com/5iQ1mor6sx

— GeoGebra (@geogebra) July 6, 2021

Some simple tweaks to help your direct instruction
Curriculum Tags: All
https://twitter.com/mpershan/status/1412547122608717825

Here are simple changes that would improve most direct instruction in math:

a) brief practice comes right after each example
b) write examples/problems before class
c) ask a "what if" for each example -- what if this was +3 instead of -3? what if you divide by 2 first? etc

— Michael Pershan (@mpershan) July 6, 2021

This is a pretty slick demo of multiplying and dividing by powers of 10
Curriculum Tags: Gr7, Gr8
https://twitter.com/jontheteacher/status/1412943852478947329

simple demonstration of multiplying and dividing by powers of ten (note static decimal point) in desmoshttps://t.co/C63iyPI2TW pic.twitter.com/kAi01vhoPv

— Jonathan Ashley (@jontheteacher) July 8, 2021

Audio/Video Links 

I've seen animations like this before but I like how this one shows it for four polynomials at once
Curriculum Tags: Gr8, MTH1W
https://twitter.com/SteveStuWill/status/1411435977336262657

Visual proof that the exterior angles of a polygon add up to 360 degrees. 👍

Credit: @MagicPi2 https://t.co/H13V7wOPaN pic.twitter.com/7TVaJEB9Nx

— Steve Stewart-Williams (@SteveStuWill) July 3, 2021

I have seen this sort of visual proof of the Pythagorean Theorem before (ie with water) but I've always seen the same video that's been around for a while. This looks like a newer construction. 
Curriculum Tags: Gr8, MTH1W
https://twitter.com/FixingEducation/status/1412069367001620480

Visual Proof of The Pythagorean Theorem!
Please pass on to your favorite math and science teachers. #PythagoreanTheorem #Math #Sciencepic.twitter.com/77GO1uHnvv

— Fixing Education (@FixingEducation) July 5, 2021

This mechanical linkage for to determine the centroid of any triangle is cool. I made a Desmos version here (hint: a trisection is needed). And there is a proof here. 
Curriculum Tags: MTH1W
https://twitter.com/ChocoLinkage/status/1412431934123253760

mechanical linkage showing the centroid of triangle

三角形の重心がわかるリンク機構 pic.twitter.com/HAm3auHI3U

— 上木 敬士郎 / Keishiro Ueki (@ChocoLinkage) July 6, 2021

If you are teaching any math concept, there is better anchoring for students if there is a story associated with it. My guess is that if they hear this baseball related story on a recent episode of @PlanetMoney they will come away with a great anchor about compound interest. It's good for just introducing the topic or more complex calculations involving annuities and pension payouts. Here's the short version: Pro baseball player Bobbly Bonilla gets the last $6 million of his contract bought out in a way that after 10 years, he gets over a $1 million a year for 25 years.  
Curriculum Tags: Gr8, MCR3U
http://ontariomath.blogspot.com/p/podcasts.html



Why get a job in Statistics? Why not?
Curriculum Tags: MDM4U
https://www.youtube.com/watch?v=uss7MXcpHaQ

Why be a statistician? Here's what one #stats pro LOVES about her work: https://t.co/RWRbGEd3mi

— This is Statistics (@ThisisStats) July 8, 2021

Seriously, who wouldn't want to hear Tom Hiddleson read math equations? Except, as @Howie_Hua points out, when he misses a value of Pi.
Curriculum Tags: All
https://twitter.com/bradwhipple/status/1412490326246318080

Tom Hiddleston reading math equations to cleanse the timeline pic.twitter.com/Q0BVprNGYC

— Braddington (@bradwhipple) July 6, 2021

Image Links 
Here's a prompt for your statistics classes
Curriculum Tags: MDM4U
https://twitter.com/ddmeyer/status/1410331780033380353

Got a question for your stats exam next year -

👉 How are both of these media orgs using bad stats to convince you to hire more cops and put more people in cages? pic.twitter.com/hxk2bRSfSK

— Dan Meyer (@ddmeyer) June 30, 2021

"When will we ever need this in real life?" - here's your answer
Curriculum Tags: All
https://twitter.com/ONTSpecialNeeds/status/1413503037495185409

Math is so much more than numbers! pic.twitter.com/uwcozzwf0T

— ONTSpecialNeeds (@ONTSpecialNeeds) July 9, 2021

Math Links for Week Ending Jul. 2nd, 2021

Featured Links

I love how @Mathigon continues to add to and improve Polypad. Check out the new features and use all the rest of this free resource. 
Curriculum Tags: All
https://twitter.com/MathigonOrg/status/1409968859122069506

Lots of small Polypad improvements this week:
– Stack playing cards on top of each other, shuffle and draw cards 🃏
– Flip the direction of rulers and protractors 📏
– Join multiple polygons together 🔶
– Double-click dice and coins to roll or flip 🎲
– Many other bug fixes! pic.twitter.com/j3TGeZswyX

— Mathigon (@MathigonOrg) June 29, 2021

Resource Links

Looking for some coding ideas for your gr9 class? Then bookmark this page created by @DaveLenovas where he will be posting weekly coding challenges. There is only one there now but as the year starts, he'll add them. 
Curriculum Tags: MTH1W
https://sites.google.com/apps.hpedsb.on.ca/codingchallenge/home

Teaching math in Ontario next year? Worried about the Coding expectations? I've created a weekly Coding Challenge to help us all grow. The focus is grade 9 but everyone is welcome. #MTH1W #codingChallengehttps://t.co/4a6JMopCpF

— Dave Lanovaz (@DaveLanovaz) June 29, 2021

Video Links

Something fun to look at when dealing with factors of numbers
Curriculum Tags: Gr7, Gr8
https://twitter.com/howie_hua/status/1409679395262844929

New TikTok video: Perfect, Abundant, and Deficient Numbers pic.twitter.com/Vd4yIy9xbi

— Howie Hua (@howie_hua) June 29, 2021

Here's a nice application of the quadratic formula. And if you want to go deep with a different (and suprising) conclusion, you might want to look at this analysis by the @Freakonomics Crew. 
Curriculum Tags: MPM2D, MBF3C, MCR3U, MCF3M
https://twitter.com/UniofOxford/status/1409821682194386944

REVEALED: The perfect placement for a penalty kick ⚽️🎯

Ahead of #EnglandvGermany, a match well-known for its penalty shootouts, Dr. @tomrocksmaths explains the maths behind taking a flawless spot-kick.

#ENGGER pic.twitter.com/6U3Jh7wC9X

— University of Oxford (@UniofOxford) June 29, 2021

@DonFraser9 references one of my favourite resource books "Mathematics a Human Endeavour" by Harold R. Jacobs. And that reminded me of my OAME 2014 Ignite talk on recreational reading for math teachers. Check out the video below and here is the link to the slide deck with all of the links. 
Curriculum Tags:All
https://twitter.com/DonFraser9/status/1410239055388946442

⁦@susanoha⁩ Right back at ha … One of the best ! pic.twitter.com/b3biGzBCiT

— Don Fraser (@DonFraser9) June 30, 2021

Image Links

Here's a great little math starter. Seems simple but I think it could get complex (and fun)
Curriculum Tags: Gr7, Gr8
https://twitter.com/ChrisKlerkx/status/1408140074089435140

Join the dots with straight lines that don't cross. Your score is the sum of the products of the numbers joined. What's the highest score possible? #iteachmath #mtbos pic.twitter.com/urqWYbgJzT

— Everything is Structural (@ChrisKlerkx) June 24, 2021

I think any factoring polynomials meme that references Adventure Time is OK with me
Curriculum Tags: MHF4U

Made a factoring meme. pic.twitter.com/vkTnA88ePg

— Howie Hua (@howie_hua) June 30, 2021

Math Links for Week Ending Jun. 25th, 2021

Featured Links

Last week @JRappaport27 was doing some crowdsourcing with assessment: "Going to be supporting a group of educators (elementary and secondary) teaching summer school. Assessment practices will be an area of focus, so I've been playing around with a journal template for Ss use that will document their learning journey." It was interesting to see the iterations that he went through given the feed back he got. Note that in the last two iterations, the link to the Google Docs:
Curriculum Tags: All
https://twitter.com/JRappaport27/status/1405240324163788807
https://twitter.com/JRappaport27/status/1405603277325094920
https://twitter.com/JRappaport27/status/1406249009493250053
https://twitter.com/JRappaport27/status/1407058596374929416

Ver1:

Going to be supporting a group of educators (elementary and secondary) teaching summer school. Assessment practices will be an area of focus, so I've been playing around with a journal template for Ss use that will document their learning journey. Any and all feedback is welcome. pic.twitter.com/TXveTBeMSh

— Jordan Rappaport (@JRappaport27) June 16, 2021

Ver2:

Updated version and I've intentionally italicized specific words, which are the competencies I value. My thoughts would be for Ts and Ss to use this as a choice board throughout and then as an overall reflective piece at the end. Further thoughts and feedback are always welcome. https://t.co/TLhQQxFC1f pic.twitter.com/zPV0HyK1WD

— Jordan Rappaport (@JRappaport27) June 17, 2021

Ver3:

If interested, here's the link to the assessment tool. Please share with anyone who might find it useful. #iteachmath #mtbos @pgliljedahl @MathletePearce @davidpetro314 @Jason_To @MarkChubb3 @MrSoclassroom @AlexOverwijk @TheMentoree @HKhodai @MrOrr_geek https://t.co/Y1AoGk90Ne https://t.co/zyLSoAsgKk

— Jordan Rappaport (@JRappaport27) June 19, 2021

Ver4:

A fourth version reflective of the various stages of their learning journey educators and students are on. #iteachmath #mtbos @pgliljedahl @MathletePearce @davidpetro314 @Jason_To @MarkChubb3 @MrSoclassroom @AlexOverwijk @TheMentoree @HKhodai @MrOrr_geek https://t.co/7kSic1CCkc https://t.co/Xs4QyCxS6T pic.twitter.com/PfIJ6I5xrj

— Jordan Rappaport (@JRappaport27) June 21, 2021

Resource Links

Though this is an older post from @MarkChubb3, I think it a great companion to any class. It came out of the discussion of the assessment work above and you should definitely take a look at it to get a whole pile of questions you can ask after a lesson. 
Curriculum Tags: All
https://twitter.com/MarkChubb3/status/1406257945147547650

These look great Jordan! Thanks for sharing.
If it helps, here are sample starters that might be similar or different:https://t.co/MJo7J6JeQE

— Mark Chubb (@MarkChubb3) June 19, 2021

Video Links

I love the way that conic sections are related to each other in odd ways. 
Curriculum Tags: All
https://twitter.com/theAlbertChern/status/1407601195468812293

You can draw a circle by sliding a right angle against any conic. pic.twitter.com/aIpEIwgW6o

— Albert Chern (@theAlbertChern) June 23, 2021

Some mathematical art for ya'll
Curriculum Tags: All
https://twitter.com/Ayliean/status/1408437152594202625

✨Like a toothpick fractal, but they’re wider✨

3.5hrs into the holiday and it’s been 100% Maths Art so far! 🤓💗 pic.twitter.com/NLZjA7eRyN

— Ayliean (@Ayliean) June 25, 2021

Featured Links

It's crazy all of the ways that Pi shows up where the circle isn't around (at least obviously)
Curriculum Tags: MHF4U
https://twitter.com/pickover/status/1408423521236172804

This formula, tweeted by @fermatslibrary, caught my eye. It impresses us with its succinctness and unification of famous symbols. Like art and poetry, the formulation increases our sense of wonder, curiosity, and reverence for mathematics as a process of discovery and invention. pic.twitter.com/hVsHgjS8hr

— Cliff Pickover (@pickover) June 25, 2021

I think this is so cool. Something to have your kids verify as a math starter. 
Curriculum Tags: Gr7, Gr8
https://twitter.com/fermatslibrary/status/1407686073455624195

10 factorial (10!) seconds is exactly 6 weeks pic.twitter.com/nvd8O3ritM

— Fermat's Library (@fermatslibrary) June 23, 2021

Math Links for Week Ending Jun. 18th, 2021

Featured Links

Lot's of talk about Ontario's new destreamed Gr9 Math Curriculum. So I thought I would share this summary from @MakeMathMoments which includes this really informative video from @Jason_To on the history of streaming in Ontario. Even if you are not interested in the upcoming Gr9 destreaming, the video is pretty interesting. You should also check out the panel discussion from OAME that Kyle and John hosted with @Jason_To, @Pi_lab, @HKhodai and @MarkChubb3
Curriculum Tags: All
https://makemathmoments.com/grade-9-de-streamed-math/

Resource Links

I wasn't sure that I was interested in Taxicab problems but when I saw slide 9, I changed my mind. This really could be suitable for all grades. 
Curriculum Tags: All
https://teacher.desmos.com/activitybuilder/custom/60cb2e3f85299c6bf7e594e3

I created a @Desmos activity to introduce students to taxicab geometry. A fun little activity that shows students an example of an easy to visualize non-Euclidean geometry. #improvemyAB #iteachmath #geomchat https://t.co/7IIADQRJdB pic.twitter.com/nUIckOa5Yd

— Erick Lee HRCE Math (@TheErickLee) June 18, 2021

Video Links

This is part of a five video series from @YRDSB but (of course) I like this one the most. 5 Barriers in Math We Need to Disrupt and Dismantle. Be sure to click the link in the description to see the other videos. Thanks to @RoyanLee for pointing this one out.  
Curriculum Tags: All
https://www.youtube.com/watch?v=Qeegj72TwLA

What if Ada Lovelace was a superhero? @OnlineKyne seems to know.
Curriculum Tags: All

https://twitter.com/davidpetro314/status/1405159181825548292

watch the ✨ series premiere ✨ of Queens of Cosplay, starring the illustrious @onlinekyne 👇 pic.twitter.com/brzojzjGNu

— Showcase (@ShowcaseTV) June 15, 2021

I am not a fan of math "tricks" and I suspect neither is @Howie_Hua but that doesn't stop him from posting these TikTok videos of why math tricks work. That's where the important stuff is, not the trick itself but why it works. So watch his videos and then recreate them in your classes 

Curriculum Tags: ALL

https://twitter.com/howie_hua/status/1404593496938270725

https://twitter.com/howie_hua/status/1405317377063940103

New TikTok video: How to square numbers ending in 5 in your head and why it works. pic.twitter.com/z6rjrR2elH

— Howie Hua (@howie_hua) June 15, 2021

 

New TikTok video: Why do perpendicular lines have slopes that are opposite reciprocals of each other? pic.twitter.com/6MBQucsQYZ

— Howie Hua (@howie_hua) June 17, 2021

Image Links

I really think you can use this sort of thing as a math starter in class, in just about any grade where they know what a prime number is. It really is a beautiful result. 
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/pickover/status/1403897917581271041

Mathematics, Prime Numbers, 12.

Shiver in ecstasy. If p is a prime number.... https://t.co/VsmNq7rctY pic.twitter.com/Lszc5EgXj0

— Cliff Pickover (@pickover) June 13, 2021

Math nerds definitely do it better
Curriculum Tags: All
https://twitter.com/pickover/status/1405673858275872775

This is a mathematics joke.

Share with friends if you see the humor. pic.twitter.com/bHPBZipg1p

— Cliff Pickover (@pickover) June 17, 2021

Math Links for Week Ending Jun. 11, 2021

Featured Links

Welp it's here. The new Ontario Gr9 math curriculum. Well the rational and the expectations at least. The supports are still being written. But you can check out the new expectations and the new strands (they follow more closely from elementary) on the Ministry's new digital site. There are also videos and supports for the change to destreamed. Of course if you just want to get to the expectations directly, go here. And don't forget the docs about what the changes are and the alignment with grade 7&8 in the resources section.
Curriculum Tags: MTN1W (note the new course code)
https://www.dcp.edu.gov.on.ca/en/curriculum/secondary-mathematics

Resource Links

One of the nice things about being part of the online math community is how people share. In this case, @GLewisOCT has created some great supports for the new math curriculum including a nice checklist and compact version of the expectations. 
Curriculum Tags: MTH1W
https://twitter.com/GLewisOCT/status/1402995741564444680

Website update!🤩I've created the #Grade9 #Destreamed #MTH1W Complete Curriculum Checklist and Condensed One-Page Summary. Resources will be added when available. #mathchat #OntEd #edtech LINK🔗: https://t.co/uXe06f5Wlv @realJ_Mitchell @Jason_To pic.twitter.com/DtDk2zbp2w

— Gerard Lewis, OCT (@GLewisOCT) June 10, 2021

Looking for some things to read this summer? Many of these I've mentioned before but it's nice to see them all in one place.
Curriculum Tags: All
https://twitter.com/MrValencia24/status/1400562105179377664

If you are a math educator looking for a good summer read, here are some highly recommended options 🙂📚📖#MTBoS #ITeachMath #MathEd #MathChat @JSEllenberg @misterwootube @Kit_Yates_Maths pic.twitter.com/aAhxfxmeR5

— Libo Valencia (@MrValencia24) June 3, 2021

Are you looking to do some playful math? Look no further than this post. It is chock full and you can learn to create a blog carnival to boot. 
Curriculum Tags:All
https://findthefactors.com/2021/06/07/yes-you-can-host-a-playful-math-education-blog-carnival/

Yes, YOU Can Host a Playful Math Education Blog Carnival https://t.co/Wf9wmIorJh

— Iva Sallay (@findthefactors) June 8, 2021

Who can't use a good dice game
Curriculum Tags: Gr7, Gr8
https://twitter.com/mathequalslove/status/1401645893267427329

Tic Tac Toe Dice Gamehttps://t.co/KRJzDpShzK #mtbos #iteachmath pic.twitter.com/yXDDYgO2Kc

— Sarah Carter (@mathequalslove) June 6, 2021

And here's another 

Curriculum Tags: Gr7, Gr8
https://twitter.com/mburnsmath/status/1400839994185420801

For info about how to play Two Dice Sums, why it's one of my favorites, & why the S didn't make an effective choice: https://t.co/1gWrBZkco8 https://t.co/otHLHmpXsn pic.twitter.com/vVoQ0KJUOr

— Marilyn Burns (@mburnsmath) June 4, 2021

And here is @MSBJacobs PolyPad version
Curriculum Tags:Gr7, Gr8

https://twitter.com/msbjacobs/status/1400860678282526721

I have just created a version of this wonderful game using Polypad from @MathigonOrg https://t.co/ZwuCnCgTCi
Maybe it's something that could be used if students are working at home?

— Michael Jacobs (@msbjacobs) June 4, 2021

And speaking of Mathigon, they now have added all of the irregular pentagons that tessellate. 
Curriculum Tags:All

https://twitter.com/MathigonOrg/status/1400815166124703750

Regular pentagons don’t tessellate, but there are 15 types of irregular pentagons that do – the last of which was only discovered in 2015. We just added all of them to Polypad: can you fit them together? https://t.co/m87MbfNgMi pic.twitter.com/RSRplNflbN

— Mathigon (@MathigonOrg) June 4, 2021

And if you need something to do in the last 20 days of math for gr 1-8 then @SCDSBMath has your back
Curriculum Tags: All
https://twitter.com/GLewisOCT/status/1400852816822943753

Our friends at @scdsbmath impress yet again! Here's the #Last20Days to consolidate math skills and strategies. 👏 Thanks @jacableSCDSB @kitluce1 @kaililynn for your effort, organization, and gorgeous design! #SCDSBLast20 #mathchat #edtech #OntEd 🔗LINK: https://t.co/xENXawHN7L pic.twitter.com/M5fz0TVLDM

— Gerard Lewis, OCT (@GLewisOCT) June 4, 2021

Video Links

Some mathematical philosophy from @Veritasium
Curriculum Tags: All
https://www.youtube.com/watch?v=HeQX2HjkcNo

Image Links

Data is everywhere
Curriculum Tags: MDM4U
https://twitter.com/simongerman600/status/1178112180891336704

I love this picture! The contents of a single firetruck spread out. Including six fire fighters. I consider this a map of the contents of the firetruck. Source: https://t.co/OJpiwoc8Gk pic.twitter.com/IqlTJBtTy0

— Simon Kuestenmacher (@simongerman600) September 29, 2019

Math Links for Week Ending Jun. 4th, 2021

Featured Links

If you have not seen @NatBanting's #MenuMath activities, I strongly suggest you head over to his archive here. And if you have, then you will love that @PattyStephens has complied some Desmos versions in a collection. 
Curriculum Tags: All
https://teacher.desmos.com/collection/5f98fc1c334c5732255b6515

Love @NatBanting's #MathMenu tasks and have turned some into @Desmos activities and collected them here along with some by @mrchowmath and @davidpetro314 . If you have created a #Desmos #mathmenu task, please share! #iteachmath #MTBoS https://t.co/Jo2iIN4EYA

— Patty Stephens (@pattystephens) June 4, 2021

Resource Links

I like the idea of students translating algebraic expressions into sentences (We've created our own activities here and here). You would think, however, that by posting a bunch of expressions/equations around the room and have students write down sentences to represent them might not lead to much variance from students as they rotate through. But it turns out that might be wrong. Check out @MathEqualsLove's post to see:
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://mathequalslove.net/translating-algebra-around-the-room-activity/

Opinion Links

Helping students absorb various concepts in math class is can be achieved by making sure that multiple approaches are used. In this post, @MrValencia24 outlines reasons to use multiple approaches in the context of a quadratic inequality.
Curriculum Tags: MHF4U
https://blog.savvas.com/using-multiple-approaches-to-a-math-question/

Article Links

I definitely think that Euler's identity is beautiful but does @ProfKiethDevlin? 
Curriculum Tags: All
https://twitter.com/maanow/status/1400135610766090248

Is Euler's Identity truly beautiful? And if so, how? In the latest #MathValues, Keith Devlin (@profkeithdevlin) explores the layered beauty of mathematics through this identity. Check it out and share your thoughts with us: https://t.co/X0PZTesdzq #MathTwitter

— MAA (@maanow) June 2, 2021

Video Links

Who doesn't like a good debate about whether math was invented or discovered. In this case it's from Kira Miller via @TomRocksMaths
Curriculum Tags: All
https://tomrocksmaths.com/2021/05/05/is-maths-discovered-or-invented/

Who doesn't love a good 3D Seipinski's triangle
Curriculum Tag: All
https://twitter.com/MagicPi2/status/1399099548962799617

Sierpinski pyramid#mtbos #iteachmath #Math #Maths pic.twitter.com/0QRH1EZDqj

— Idan Tal (@MagicPi2) May 30, 2021

Image Links

Can't get enough of Geometric Art
Curriculum Tags: All
https://twitter.com/GeomeTribal/status/1398290092620398596

Roman mosaic from the 1st-2nd century found in Badalona. My favourite piece at the Archaeological Museum of Catalonia, in Barcelona pic.twitter.com/766ODwdle5

— Ancient Geometry (@GeomeTribal) May 28, 2021

You've probably heard of the Golden Ratio but have you heard of the Plastic Number?
Curriculum Tags: MCR3U, MHF4U
https://twitter.com/fermatslibrary/status/1397910210820427779

A way to define the Golden Ratio is the value of x for which the 3 vertices are collinear. The equivalent for rectangular boxes is called the Plastic Number named by the dutch monk Dom Hans van der Laan. pic.twitter.com/JJP7IFsQTs

— Fermat's Library (@fermatslibrary) May 27, 2021