Math Links for Week Ending Oct 3, 2026

Featured Links

I appreciate that @KarenCampe brings these old problem sets and makes them new again
Curriculum Tags: All
https://karendcampe.wordpress.com/2026/10/01/october-calendar-problems-4/

The October #ProblemSolving calendar is here!
Enjoy with your students or solve them yourself. Share your thinking here or on the post. #MTBoS #iTeachMath #T3Learns #RecreationalMathhttps://t.co/g9bmVoHrvy

— Karen Campe (@KarenCampe) October 1, 2026

Resource Links

Matrices are no longer in the Ontario Math curriculum but you can still employ them when dealing with 3D vectors
Curriculum Tags: MCV4U
https://help.desmos.com/hc/en-us/articles/49219289186317-Matrices

You can finally get your ducks in a row (and column). Type “matrix” in any Desmos graphing tool to get started. Learn more: help.desmos.com/hc/en-us/art... #iteachmath #mathsky #linearalgebra #matrices

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— Desmos Studio (@desmos.com) October 2, 2026 at 10:14 AM

Make your own suggestion
Curriculum Tags: All
https://x.com/howie_hua/status/2105676830435061899

Since it's spooky season, make a math term scary in the comments. I'll start:

BOOclidean algorithm

— Howie Hua (@howie_hua) October 1, 2026

Video Links

This is a good context for describing what a fraction could represent
Curriculum Tags: Gr7, Gr8
https://x.com/howie_hua/status/2106123154565583126

I have seen a LOT of people overthink this type of problem. Are you overthinking it? pic.twitter.com/bPbH0XdO0Y

— Howie Hua (@howie_hua) October 2, 2026

It's good to understand how different averages are calculated but more, what they represent.
Curriculum Tags: MDM4U
https://x.com/howie_hua/status/2106381257919881275

Happy Mean Girls Day! Let's learn about the arithmetic, geometric, and harmonic mean pic.twitter.com/NIQBA7SbBn

— Howie Hua (@howie_hua) October 3, 2026

Image Links

The printing is so small it's hard to see but this is perfect when you want to show your kids what a useless graph is. Thanks to @JoelBezaire for this one
Curriculum Tags: MDM4U
https://bsky.app/profile/joelbezaire.bsky.social/post/3mwvpim5q7s22

This is the funniest thing I've seen today, possibly ever

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— Tim Carmody (@tcarmody.bsky.social) October 2, 2026 at 10:39 AM