Math Links for Week Ending Mar 6th, 2020

Featured Links 

I came across this site this week when looking for some nets for prisms. There are a literal tonne of different nets that you can download but I have to say the ones that I think are the coolest are the twisted prisms. So I had students do the standard cutting out, construction and calculations with triangular and rectangular prisms then let them try to create the twisted versions. They are a little trickier but kids were into it. 

Curriculum Tags: Gr7, Gr8

https://www.polyhedra.net/en/

Resource Links 

I updated a post on my Found Data blog by turning the Walnut Crushing World record into a 3ActTask similar to @gfletchy's Rope Jumper. Good for proportions, unit rates and linear regression Get all the videos and data here:

Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P

http://found-data.blogspot.com/2018/10/walnut-crushing-world-record.html

Make sure you look at the replies for the discussion on this one about the related geometric proofs of the Pythagorean theorem.

Curriculum Tags: MPM1D, MPM2D

https://twitter.com/jamestanton/status/1235201633799172096

There are many purely visual proofs of the classic Pythagorean Thm: For squs on sides of a right triangle, sum of areas of two small squs = area of large squ. Is there a purely visual proof of the analogous result for equilateral triangles drawn on the sides of right triangles? pic.twitter.com/jWRfw8dKxv

— James Tanton (@jamestanton) March 4, 2020

Are you looking for some Algebra resources because you have to go online because of Coronavirus?
Curriculum Tags: All
https://twitter.com/MrCorleyMath/status/1235650990008868867

Any #algebra teachers that is going to digital learning days due to coronavirus, this is a list of my @desmos activites for the year. Please feel free to use/share. Just trying to give back to this amasing community. #mtbos #iteachmath https://t.co/QQiS68vf3g

— Nick Corley (@MrCorleyMath) March 5, 2020

Opinion Links 

People make math mistakes in the media space all the time. Especially when it comes to big numbers. Rather than just trolling the offenders, I like @LukeSelfWalker's idea.
Curriculum Tags: All
https://twitter.com/LukeSelfwalker/status/1235926959579947009

So, floating around the internet is an example of a human making a mistake in math.

1) How can we promote growth mindset?
2) What is a follow up question to help this person understand their thinking?
3) How could we make this our favorite no?

Let's control the narrative.

— Luke Walsh (@LukeSelfwalker) March 6, 2020

MSNBC’s Brian Williams reads a tweet: "Bloomberg spent $500 million on ads. U.S. Population, 327 million. He could have given each American $1 million"

NYT Editorial Board Member Mara Gay: “It’s an incredible way of putting it. It’s true. It’s disturbing”

It's $1.53 per person pic.twitter.com/dIiwCESgh8

— Ryan Saavedra (@RealSaavedra) March 6, 2020

Video/Audio Links 

Here is the last episode of the OAMEtalks podcast ]this season features @mathliisa & @MrsLeBeau talking about their upcoming webinar (Mar11) "A Fusion of Math and Special Education"
Curriculum Tags: All
https://talks.oame.on.ca/





This is a nice creative solution and certainly could be connected to optimization.
Curriculum Tags: MPM1D, MFM1P
https://twitter.com/panlepan/status/1234975571060252675

Cool ! I could use this in class. What would students ask ? What would you ask ? #mathchat #edchat @ddmeyer https://t.co/mAsm58jc3i

— Vincent Pantal🍩ni (@panlepan) March 3, 2020

Ever travel on a mobius strip?
Curriculum Tags: All
https://twitter.com/Brzezinski_Math/status/1235295538024677378

Go ahead. Take a quick 0:41 break and experience traveling along the one & only side of a Möbius Strip. Created in @geogebra #3D #Calculator & shown here in #AugmentedReality. https://t.co/1vyp2ODIwf #MTBoS #ITeachMath #math #maths #3dmodeling #stem #steam pic.twitter.com/fuKTqu3SNn

— Tim Brzezinski (@Brzezinski_Math) March 4, 2020

Image Links 

I love these sorts of visual proofs
Curriculum Tags: All

https://twitter.com/jamestanton/status/1236290942363037699

The following picture shows that the sum of any 7 consecutive integers is sure to be a multiple of 7. For which N is any sum of N consecutive integers sure to be divisible by N? pic.twitter.com/nLQsXXufH7

— James Tanton (@jamestanton) March 7, 2020