Math Links for Week Ending Jul. 2nd, 2021

Featured Links

I love how @Mathigon continues to add to and improve Polypad. Check out the new features and use all the rest of this free resource. 
Curriculum Tags: All
https://twitter.com/MathigonOrg/status/1409968859122069506

Lots of small Polypad improvements this week:
– Stack playing cards on top of each other, shuffle and draw cards 🃏
– Flip the direction of rulers and protractors 📏
– Join multiple polygons together 🔶
– Double-click dice and coins to roll or flip 🎲
– Many other bug fixes! pic.twitter.com/j3TGeZswyX

— Mathigon (@MathigonOrg) June 29, 2021

Resource Links

Looking for some coding ideas for your gr9 class? Then bookmark this page created by @DaveLenovas where he will be posting weekly coding challenges. There is only one there now but as the year starts, he'll add them. 
Curriculum Tags: MTH1W
https://sites.google.com/apps.hpedsb.on.ca/codingchallenge/home

Teaching math in Ontario next year? Worried about the Coding expectations? I've created a weekly Coding Challenge to help us all grow. The focus is grade 9 but everyone is welcome. #MTH1W #codingChallengehttps://t.co/4a6JMopCpF

— Dave Lanovaz (@DaveLanovaz) June 29, 2021

Video Links

Something fun to look at when dealing with factors of numbers
Curriculum Tags: Gr7, Gr8
https://twitter.com/howie_hua/status/1409679395262844929

New TikTok video: Perfect, Abundant, and Deficient Numbers pic.twitter.com/Vd4yIy9xbi

— Howie Hua (@howie_hua) June 29, 2021

Here's a nice application of the quadratic formula. And if you want to go deep with a different (and suprising) conclusion, you might want to look at this analysis by the @Freakonomics Crew. 
Curriculum Tags: MPM2D, MBF3C, MCR3U, MCF3M
https://twitter.com/UniofOxford/status/1409821682194386944

REVEALED: The perfect placement for a penalty kick ⚽️🎯

Ahead of #EnglandvGermany, a match well-known for its penalty shootouts, Dr. @tomrocksmaths explains the maths behind taking a flawless spot-kick.

#ENGGER pic.twitter.com/6U3Jh7wC9X

— University of Oxford (@UniofOxford) June 29, 2021

@DonFraser9 references one of my favourite resource books "Mathematics a Human Endeavour" by Harold R. Jacobs. And that reminded me of my OAME 2014 Ignite talk on recreational reading for math teachers. Check out the video below and here is the link to the slide deck with all of the links. 
Curriculum Tags:All
https://twitter.com/DonFraser9/status/1410239055388946442

⁦@susanoha⁩ Right back at ha … One of the best ! pic.twitter.com/b3biGzBCiT

— Don Fraser (@DonFraser9) June 30, 2021

Image Links

Here's a great little math starter. Seems simple but I think it could get complex (and fun)
Curriculum Tags: Gr7, Gr8
https://twitter.com/ChrisKlerkx/status/1408140074089435140

Join the dots with straight lines that don't cross. Your score is the sum of the products of the numbers joined. What's the highest score possible? #iteachmath #mtbos pic.twitter.com/urqWYbgJzT

— Everything is Structural (@ChrisKlerkx) June 24, 2021

I think any factoring polynomials meme that references Adventure Time is OK with me
Curriculum Tags: MHF4U

Made a factoring meme. pic.twitter.com/vkTnA88ePg

— Howie Hua (@howie_hua) June 30, 2021