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