Math Links for Week Ending Apr. 7, 2023

Featured Links

Everyone is talking about these non periodic tessellations and here is the story behind them
Curriculum Tags: All
https://www.quantamagazine.org/hobbyist-finds-maths-elusive-einstein-tile-20230404/

For more than 50 years, mathematicians have sought an “einstein”--a simple shape that can only tile the plane nonperiodically. Now a retired print technician has found one! My latest for @QuantaMagazine https://t.co/UYlKQ5OFZ3

— Erica Klarreich (@EricaKlarreich) April 4, 2023

Resource Links

Keep this in your pocket for next year's April Fools day
Curriculum Tags: All
https://twitter.com/MathigonOrg/status/1642165111065309185

BREAKING: Mathematicians have found an exact fraction that equals π, thereby disproving the long-standing conjecture that π is irrational. We now know that π = 1783366216531/567663097408. Learn more at https://t.co/oDP5wlqVnz pic.twitter.com/42dTXVrUac

— Mathigon (@MathigonOrg) April 1, 2023

Everyone is making resources for the new non periodic tessellating shape
Curriculum Tags: All
https://twitter.com/TimBrzezinski/status/1643292947561996292

Come explore the newly discovered aperiodic monotile (c/o @cs_kaplan et al.) and create your own tessellation with this revamped @geogebra version! 👉 https://t.co/rZLT4AEbBC #MTBoS #ITeachMath #math #geometry #geomchat #mathchat pic.twitter.com/A9nJbBxvjD

— Tim Brzezinski (@TimBrzezinski) April 4, 2023

Students can build their own factorable quadratics with this card based activity. 
Curriculum Tags: MPM2D, MCR3U, MCF3M, MBF3C
https://twitter.com/kate_selkirk/status/1643232187842539523

Playtested #Roots yesterday! You pick your a & c terms, choose a b term, and factor to claim roots! This game is playable NOW! #gbl #game #iteachmath #mtbos https://t.co/6CWy6klWam https://t.co/rscXDWsw6s pic.twitter.com/v9cL8MIZOW

— Kate Selkirk-Litman (@kate_selkirk) April 4, 2023

Video Links

I love this CheckSum calculation as a way to have kids hammer out some simple calculations and how they relate to bigger societal issues. In fact, when you buy something online, usually all the website is doing is verifying that this calculation is valid to validated your card
Curriculum Tags: All

https://twitter.com/howie_hua/status/1641910387208753152

Here's my credit card number pic.twitter.com/3gSy8RE2iF

— Howie Hua (@howie_hua) March 31, 2023

Here's a nice little intro to algebra activity
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/howie_hua/status/1641596322125058048

One of my favorite math tricks pic.twitter.com/g8XBPPxJwJ

— Howie Hua (@howie_hua) March 31, 2023

Why not 3D print some lego versions of the new aperiodic shapes. The template is in the comment thread
Curriculum Tags: All
https://twitter.com/davemakesstuff_/status/1644348513697034246

Einstein Aperiodic Monotile LEGO

An aperiodic tile covers two-dimensional space creating infinite patterns that never repeat. Until recently, the existence of an aperiodic monotile was purely theoretical. But here it is thanks to @cs_kaplan et al!#monotile #aperiodic #3dprint pic.twitter.com/w6skZOOnss

— DaveMakesStuff (@davemakesstuff_) April 7, 2023

Image Links

Geometry humour
Curriculum Tags: All
https://twitter.com/pickover/status/1644469552133160962

Mathematics. Parallel lines. pic.twitter.com/kqB79Ebnrl

— Cliff Pickover (@pickover) April 7, 2023