David Hilbert grave in Göttingen. Within weeks of his uttering this famous quote Gödel spoke in Göttingen proving otherwise and Hilbert was shocked to the core.

New blog post: 239th Carnival of Mathematics! Recapping math/maths/mathEd content from April. #MTBoS #iTeachMath #MathChat #RecreationalMath karendcampe.wordpress.com/2025/05/05/car…

Calc meme

Tomorrow is World #Tessellation Day (and MCEscher's birthday). I usually try to do a tessellation round up post, if you have one or more you want to send my way!

Happy World #Tessellation Day! mathhombre.blogspot.com/2025/06/world-… Though I'm 99% on #mathsky, this seems like an occasion for crossing platforms.

This is the last week to register before the program starts! “21st century mathematics”: a free month-long online enrichment program for math teachers. Info + register: bit.ly/21math2025 #mtbos #iteachmath

∠CAD=∠CBE=24°, ∠ADC=∠BEC=90°, AM=BM ∠DME = ?

Paul Erdös on the infinitude of Mathematics

Join us Thursday, August 21 at 4pm Pacific Time for our next Inspiring Math Minds webinar. Peg Cagle will be sharing her tremendous wisdom with us all. Register for FREE: tinyurl.com/CMC-Webinars #iTeachMath 이승철.bsky.social CMC - CA MathCouncil

New at Grading For Growth: A look at the connection between deliberate practice and alternative grading. The connection is closer than you think, and there's a lot to unpack. gradingforgrowth.com/p/alternative-…

My latest art show, MathArt at MathFest, last week in Sacramento, Calif. "Three Ring Circuits" and "Octa Zigzag Primes" - You can order the Art Catalog at lulu.com/search?page=1&… The last few JMM Art catalogs can be got there too!

If any math teachers are interested in covering basic ideas about gerrymandering with their students, here's a project I did with my kids back in 2018. It uses the materials that Moon Duchin put together for k-12 studetns. mikesmathpage.wordpress.com/2018/01/14/sha…

Math isn’t just about answers. It’s about struggle, sense-making, and reflection. What happens when we drop AI into Pólya’s problem-solving steps? #math #AI kurtsalisbury.substack.com/p/mario-math-a…

My cartoon for this week’s New Scientist

Elementary math teacher educator? Come work with us at GVSU! Great colleagues, growing program, focus on teaching as well as scholarship. gvsu.wd1.myworkdayjobs.com/en-US/careers/… #mtechat please share!

#mathstorytelling day! I wrote this story of Jaxon's journey as a tribute to some of my favorite math stories. Won't you join them? Illustration by Ysabela! mathhombre.blogspot.com/2025/09/jaxons… #mathart

I love this timeless article from Steven C. Reinhart about teacher moves in the math classroom that help get kids doing more of the communicating (instead of the teacher). One of my absolute favorites: hybridalgebra.pbworks.com/f/Never+Say+An…

An old one that still works for me.