Math Links for Week Ending Jan. 6th, 2023

Featured Links

Hey, guess what? It's 2023. And here are a bunch of things related to the number 2023
Curriculumn Tags: All
https://twitter.com/edsouthall/status/1608874752709627911
https://twitter.com/TamasGorbe/status/1609112122411163648
https://twitter.com/MathsEdIdeas/status/1607869145231630343
https://twitter.com/JohnAllenPaulos/status/1609312453887954944

2023:
There are 2023 ways to tile a 4 × 4 square with an L-shaped tromino and the monomino. They’re all in this image (zoom in). pic.twitter.com/pcbhcwm0oo

— Ed Southall (@edsouthall) December 30, 2022

Happy Cube Year Everyone! 🥳
2️0️2️3️

Just two more years and we have a beautiful sum of cubes.#HappyNewYear2023 pic.twitter.com/ObzUXhWKSh

— Tamás Görbe (@TamasGorbe) December 31, 2022

2023 is the only number that is equal to the sum of its digits multiplied by the square of the sum of the squares of its digits, where the sum of its digits and the sum of the squares of its digits are also its prime factors.#HappyNewYear#HappyNewYear2023 pic.twitter.com/fHnd6nEQhp

— Maths Ed (@MathsEdIdeas) December 27, 2022

The number 2023 may seem rather undistinguished, but its prime decomposition is interesting. It contains three (lucky) 7s and two 1s: 7*17*17, which of course portends ........... nothing. In any case, Happy 2023!

— John Allen Paulos (@JohnAllenPaulos) December 31, 2022

Resource Links

Here's a new(ish) app that is based on the four fours problem. Good practice for order of operations
Curriculum Tags: All
https://fourequalsten.app/

@KarenCampe continues to post old NCTM calendar problems. This set comes from January of 1991
Curriculum Tags: All
https://karendcampe.wordpress.com/2023/01/01/january-calendar-problems/

Video/Audio Links

A little chat about coding in grade 9 math
Curriculum Tags: MTH1W
https://talks.oame.on.ca/season-5



Here's a nice little introduction to what a vector is from the movie Despicable Me. Thanks to @MathsJem for pointing this one out.
Curriculum Tags: MCV4U
https://www.youtube.com/watch?v=bOIe0DIMbI8

Here's a nice extension to Pythagorean Theorem
Curriculum Tags: Gr8, MTH1W, MFM2P, MPM2D
https://twitter.com/howie_hua/status/1610426715993681921

New TikTok video: Did you know there's a 3-d version of the Pythagorean theorem? pic.twitter.com/Q7UdNjMMoG

— Howie Hua (@howie_hua) January 4, 2023

Here's a nice basic algebra quiz. How many of your students will get all of these?
Curriculum Tags: MTH1W
https://twitter.com/howie_hua/status/1610802367607484416

New TikTok video: Just in case anyone wants a pop quiz on algebra pic.twitter.com/Vkou0tKybG

— Howie Hua (@howie_hua) January 5, 2023

A little augmented reality to spice up your Angle Sum Triangle Theorem
Curriculum Tags: Gr7, Gr8
https://twitter.com/TimBrzezinski/status/1610446710685466626

Triangle angle sum theorem — this time in augmented reality! https://t.co/1NcVILhg5M & https://t.co/WPS4smtab6 @geogebra #MTBoS #ITeachMath #geometry pic.twitter.com/BK0To0erLt

— Tim Brzezinski (@TimBrzezinski) January 4, 2023

Image Links

Part of a circle anyone?
Curriculum Tags: Gr8
https://twitter.com/KH2020H0/status/1610679344447328276

What is the area of the unshaded region of the square? pic.twitter.com/fo6srETZS0

— KHALID (@KH2020H0) January 4, 2023