Math Links for Week Ending Nov 6th.

Featured Links

This weekend I am part of the free @MakeMathMoments Virtual Summit. There is a pretty good slate of speakers (and me :-)  ) Some are live, some are pre recorded. Even if you read this a few days late, you can still see some of the recording (just do it before Nov13). Just go to the website and register. 
Curriculum Tags: All
https://summit.makemathmoments.com/schedule/  

Resource Links

One of the things I'm talking about in my session is that I have been playing around with using a Desmos Activity to create online tests for students that are similar but have different values in the questions for each student. This activity isn't one of those tests. Instead it's a compilation of a bunch of possible types of questions that could be created. And by type, I don't mean the type of math but instead, how many random variables are needed to generate the questions. Check out the description for a couple of videos too. One on what the file is, in general, and the other on how you might use it to create your own questions.
Curriculum Tags: All
https://teacher.desmos.com/activitybuilder/custom/5f8c7349e0247f0cdae253ae

Though not as frequently as me, @Mathsgem posts some of her favourite found resources on the Internet. Here's her latest:
Curriculum Tags: All
https://twitter.com/mathsjem/status/1322826202252533760

New! My 137th gems post. Ideas, resources and updates for maths teachers.https://t.co/FTSeTlJ6HJ

Hat tips to follow!#mathschat #mathsgems #teammaths pic.twitter.com/dQRxtBNWCB

— Jo Morgan (@mathsjem) November 1, 2020

I have always liked how @MathEqualsLove shares her stuff and now she has a new website to do it. Check it out.
Curriculum Tags:All
https://mathequalslove.net/

My new website is LIVE! I switched from Blogger to Wordpress and finally bought my own domain name. I hope you enjoy visiting https://t.co/8JreGD200v. Hopefully the new navigation menu will make finding stuff much faster and easier! #mtbos #iteachmath pic.twitter.com/UDBvLYroAy

— Sarah Carter (@mathequalslove) November 1, 2020

If you didn't know already, @pgliljedahl finally got a book about the Thinking Classroom and @wheeler_laura not only does some illustrations for the book but she's got the book club too
Curriculum Tags: All
https://ca.corwin.com/en-gb/nam/building-thinking-classrooms-in-mathematics-grades-k-12/book268862

#ThinkingClassroom book club schedule is ready. We'll meet 8pm EST Mondays starting Nov. 9th.
Who's in? pic.twitter.com/eH4kqNJJhO

— Laura Wheeler (@wheeler_laura) November 1, 2020

New from @christophe_sew, practice on optimizing rectangles

Curriculum Tags: MPM1D, MCV4U
https://twitter.com/Christophe_Sew/status/1323492785530511360

Back in a classroom next week!@desmos lesson on OPTIMISATION (IB AA SL).

It seemed to work well. Students "solved" the initial problems before using optimisation to replicate the result.https://t.co/u1h9r4q7wG@AlgebraDesmos @davidpetro314 #iteachmath #mathsed #mathschat pic.twitter.com/zi8ZLYpikd

— Mr. S (@Christophe_Sew) November 3, 2020

Article Links

Although I wouldn't characterize exponential decay as obscure, here are 5 obscure math equations that rule the world. 
Curriculum Tags:All
https://www.discovermagazine.com/the-sciences/5-obscure-formulas-that-rule-the-world 

You probably don't think about the Dirac equation on an average day, but it describes just about everything that happens to you. https://t.co/2YA0YhRsjG

— Discover Magazine (@DiscoverMag) November 1, 2020

Video/Audio Links

My latest podcast is out with @Pi_Lab and @PeterTaylor77 talking about animations and exponential functions ahead of their upcoming webinar. 
Curriculum Tags: MHF4U, MCR3U
https://talks.oame.on.ca/season-3 





A couple of cool visualizations by @Matthen2
Curriculum Tags: MHF4U
https://twitter.com/matthen2/status/1322483571978760193

how to draw a logarithmic spiral. Use evenly spaced radial rays, and draw a perpendicular from one ray until it hits the next. repeat pic.twitter.com/f2NTPqLgSG

— Matt Henderson (@matthen2) October 31, 2020

I like this one from @Matthen2 to prove Pythagorean Theorem

Curriculum Tags: Gr8, MPM1D, MFM1P
https://twitter.com/matthen2/status/1322843458566983680

proof of an important circle theorem pic.twitter.com/MM1uAvBJdy

— Matt Henderson (@matthen2) November 1, 2020

Image Links

This is a fun way to have number sense be more play based. 
Curriculum Tags: Gr7 
https://twitter.com/MarkChubb3/status/1322554205295575042

Creating images worth 2000.

Can you tell what each rod is worth?
How did you count?

Creativity opens up learning and leads to richer discussions! pic.twitter.com/NKtSBTbQgq

— Mark Chubb (@MarkChubb3) October 31, 2020

Have you seen these image based solving equations puzzles on the Interwebs? Here is a fun idea to have your kids make them up using Google Slides (or similar)
Curriculum Tags: Gr7, Gr8
https://twitter.com/GiftedTawk/status/1322524994061127680

My students created this Math Picture Puzzle Jamboard based on their hobbies or passions. Interested in a copy? Would you like to swap Jamboards with your students’ puzzles? pic.twitter.com/fyP5vXZPNq

— Julia's #STEAMing up Questions (@GiftedTawk) October 31, 2020

This is an awesome probability resource. 
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U

https://twitter.com/xkcdComic/status/1322376151226986496

Probability Comparisons https://t.co/xZn0qRVtoe https://t.co/jCUNkWGEFB pic.twitter.com/cP5NZrPtX9

— XKCD Comic (@xkcdComic) October 31, 2020

Deep questions from @JamesTanton about parabolas
Curriculum Tags: MCR3U
https://twitter.com/jamestanton/status/1323971119838158848

If a quadratic function has odd integer outputs on three consecutive integer inputs, must it have odd integer outputs on *all* integer inputs? pic.twitter.com/6IjrA7PGbC

— James Tanton (@jamestanton) November 4, 2020

You can always count on @MonaChalabi to give a unique perspective, in this case it's comparing winning the lottery to casting the winning vote. Neat comparison. 
Curriculum Tags: MDM4U
https://twitter.com/MonaChalabi/status/1323765548698710016

A voter in America is five times more likely to cast THE decisive vote in the presidential election than a lottery player is to win the jackpot. Some of you still have time to make a good gamble! pic.twitter.com/tA2ScDce7L

— Mona Chalabi (@MonaChalabi) November 3, 2020

I thought this was an interesting way to look at how the voting was going in those slow to count states. Extrapolation to the rescue. 
Curriculum Tags: MPM1D, MFM1P, MDM4U
https://twitter.com/wayner99/status/1324188525114306561

Here is a graphic example of how that has evolved today in PA and GA. But we haven't received updates on NC. pic.twitter.com/20bVhKcifv

— Wayne Kozun (@wayner99) November 5, 2020