Christopher Danielson

Join your math friends for 2026 NCTM Game Night! Spend the evening enjoying math games, puzzles, raffle prizes, fellowship, & friends. Wednesday, October 28, 2026 8:30–10:30 PM Bluebird Ballroom, 3rd Floor Cash bar available. Come play, connect, & have fun. Bring a friend! #MTBoS #ElemMathChat

This MF don’t miss!!!

I don't know who needs to hear this, but Minnehaha creek is very beautiful right now, fyi.

This morning I have run across a description of my hexagons puzzle as an “indie contrarian shape puzzle [that] challenges the hegemony of regular polygons in child shape toys” and I have never felt more seen.

Join your math friends for 2026 NCTM Game Night! Spend the evening enjoying math games, puzzles, raffle prizes, fellowship, & friends. Wednesday, October 28, 2026 8:30–10:30 PM Bluebird Ballroom, 3rd Floor Cash bar available. Come play, connect, & have fun. Bring a friend! #MTBoS #ElemMathChat

Did you know that MCTM has approximately 3,300 names in its database, while a conservative estimate suggests that 20,000+ educators across Minnesota teach or support mathematics in some way? What if each of us invited just one colleague to join MCTM? mctm.org/join-us #mnmath4ALL #mctm

You try to raise them right. And sometimes you get conflicting signals

Talking fall produce with the 22 y.o. He mentions having made braised leeks in his college apartment. “The wine was pretty sweet though. I used the cheapest wine at Kwik Trip.”

How Many? #UnitChat I really really like this one. There’s so much to count and ways to count them.

I put forward an alternative to the language-of-thought hypothesis for geometry, the Wanderers Hypothesis for Geometry: Human geometry may originate from the interaction between ancient, navigation-like mental processes that approximate Euclidean geometry and our human capacity for natural language.

The dinosaurs are migrating

Ysabel Yates'... I mean Cookie Monster's superb takedown of why GenAI in the workplace sucks.

Saint Paul! The peppers at the farmers market today are PEAK! This opportunity will not last so get after it!

@triangleman.bsky.social #UnitChat!

This woman is amazing and fabulous. Highly recommend this listen!

Copy of Q Minnesota Issue 01 in hand! I can’t even with the incredible humans on this first cover and story. The orgs repped are truly changing the landscape of queer culture / life. How fortunate are we of their existence. Support a bright future for all, ya’ll. qminnesota.com

I'll be on Jeopardy today! It filmed at a really hectic time in my life and I barely remember it, so it'll be fun to watch and see what happened. :) Find out where to watch: www.jeopardy.com/watch Or watch it the next day on Peacock or Hulu.

Thread.

One of the more grim applications of #vehiclechat

art by Sean Lim

It's now two years since I started writing observations of the world around me. I've made a second edition of my little book "What I noticed along the way" with all 431 observations. The journey has brought me such joy and I hope it brings you joy too. drive.google.com/file/d/11TUl...

the fundraising numbers this could do, it's all we want

Students made their first minicomics in my intro making course - mostly standard format but this student, a first time maker(!), did something so off the charts I’m still reeling from it! & he made like 12 of them for his classmates! A paper engineering feat of flipbookery as well as killer drawing!

In case you missed it last night: we are seeing reports all over the country of immigration surges and state violence. If you need whistles for your community, we will send you 100-3000 3d printed for free, and we will love doing it. 3dwhistles.com

Minneapolis has already shown it’s stronger than the hateful attacks any President can throw at us. I stand with our Somali community and am going to remain vigilant in support of all of our neighbors as the elections nears.

Today, and every day, we stand with the Somali community.

there’s no such thing as a lesson plan, only lesson hopes and dreams

Saint Paul!! That sky right now!!!

This Is Just to Say I have trained the AI to read to our baby the one you were probably expecting me to interact with Calm down AI is awesome so sweet and so cold

Join your math friends for 2026 NCTM Game Night! Spend the evening enjoying math games, puzzles, raffle prizes, fellowship, & friends. Wednesday, October 28, 2026 8:30–10:30 PM Bluebird Ballroom, 3rd Floor Cash bar available. Come play, connect, & have fun. Bring a friend! #MTBoS #ElemMathChat

In a recent visit to some friends, I noticed that their 7-year-old son was playing with 21st Century Pattern Blocks. His mom sent me this photo today.

Wait! New JD Allen album came out last week?!? Just when my autumn soundtrack needed a lift. ❤️❤️🎷

Oh man I wish I had not read that onion cutting math learning metaphor

Join your math friends for 2026 NCTM Game Night! Spend the evening enjoying math games, puzzles, raffle prizes, fellowship, & friends. Wednesday, October 28, 2026 8:30–10:30 PM Bluebird Ballroom, 3rd Floor Cash bar available. Come play, connect, & have fun. Bring a friend! #MTBoS #ElemMathChat

Haha the scene of me outside earlier tossing those milkweed parachuters and helping them ride the thermals!

If you aren’t spreading native plant seeds around while you’re out walking this month, what are you even doing?

The goal is within reach if you want to support…

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

We've just made a downloadable version of the Numbers in Colour worksheets first printed in 1962. We will send a free download of this product when you order a set of Cuisenaire rods. #cuisenairerods #cuisenaire #maths cuisenaire.co.uk/prod.../cuis... cuisenaire.co.uk/.../numbers-...

If the hot dog shop is closed, we might have to get them in bulk from the deli counter. I guess that’d be the wurst-case scenario