Math Links for Week Ending Dec 12th, 2025

Featured Links

Would you rather is a great strategy, and @JStevens009 has a whole website with prompts
Curriculum Tags:All
https://www.wouldyourathermath.com/
https://x.com/howie_hua/status/1999210926982214071

I turned my most boring math lesson into one of my most engaging math lessons by doing this one thing pic.twitter.com/ykcQ8le3Q3

— Howie Hua (@howie_hua) December 11, 2025

Resource Links

Another classic set of Calendar Problems
Curriculum Tags: All
https://karendcampe.wordpress.com/2025/12/01/december-calendar-problems-4/

Here's the December Calendar of Problems from 40 years ago... the first year of the calendar format!! Enjoy #ProblemSolving this month yourself or w/students; share thinking here or on the post. #MTBoS #iTeachMath #T3Learns #MathsToday #RecreationalMath karendcampe.wordpress.com/2025/12/01/d...

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— Karen Campe (@karencampe.bsky.social) December 1, 2025 at 9:03 AM

Video Links

I like this proof of the Birthday Problem. It would be good to use when teaching about logarithms
Curiculum Tags: MHF4U
https://www.youtube.com/watch?v=OUQVhnuTMVU

A great way to show that how you arrange things can be helpful
Curriculum Tags: MTH1W
https://x.com/howie_hua/status/1997336910558105979

Did you know all prime numbers (except 2 and 3) are one away from a multiple of 6? Here's how we can show this. pic.twitter.com/kj5vwXFkyw

— Howie Hua (@howie_hua) December 6, 2025

I've seen these before but I never get tired of seeing them
Curriculum Tags: Gr8, MTH1W
https://x.com/howie_hua/status/1998462189154562173

Why does the Pythagorean theorem work?

Here are three proofs, including a proof submitted by a U.S. president 5 years before his presidency. pic.twitter.com/82UAkx2SL4

— Howie Hua (@howie_hua) December 9, 2025

Image Links

How long will this pattern go?
Curriculum Tags: All
https://x.com/Ganeshuor/status/1999124320967352809

41 is prime
41+2 is prime
41+2+4 is prime
41+2+4+6 is prime
41+2+4+6+8 is prime
41+2+4+6+8+10 is prime
41+2+4+6+8+10+12 is prime
41+2+4+6+8+10+12+14 is prime
41+2+4+6+8+10+12+14+16 is prime
41+2+4+6+8+10+12+14+16+18 is prime
41+2+4+6+8+10+12+14+16+18+20 is prime

— Ganesh Kumar (@Ganeshuor) December 11, 2025