Christopher Danielson
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triangleman.bsky.social
Christopher Danielson
@triangleman.bsky.social
Kids, math, fruit, words

talkingmathwithkids.com
Reposted by Christopher Danielson
I'd love it if you did me a favor and checked out my former student teachers YouTube channel she is building to teach Excel skills to others. If you have time, watch her quick videos, like them and subscribe. Give her feedback. She is the best. www.youtube.com/@HowToManju
Manju
www.youtube.com
February 10, 2026 at 2:35 AM
The Fox News chyron on the seatback a row in front of me. Literally every accusation is a confession isn’t it?
February 9, 2026 at 5:02 PM
on public transit for a morning work flight

on the way is the light rail station next to the whipple building, site of ongoing inhumanity and captivity for largely innocent people

so much new fencing and barriers and opaque cloth screening

this ugly work requires obscurity
February 9, 2026 at 3:58 PM
was that some kind of dub over an altered lyric?
February 8, 2026 at 11:09 PM
Reposted by Christopher Danielson
Pattern block play! #21CenturyPB #iTeachMath
February 8, 2026 at 7:19 PM
My father passed away last month after a months-long illness. If you're curious about the Triangleman origin story, a few aspects are contained within.

neptunesociety.com/obituaries/s...
Theodore Danielson Obituary - Southfield, MI
Celebrate the life of Theodore Danielson, leave a kind word or memory and get funeral service information care of Neptune Society.
neptunesociety.com
February 7, 2026 at 11:25 PM
Abolish this
ICE told nurses this Minneapolis man “purposefully ran headfirst into a brick wall.”

What actually happened is that they pulled him from a car, beat him so viciously with a steel baton that he had 8 skull fractures, 5 life-threatening brain hemorrhages, and couldn’t remember he had a daughter.
February 7, 2026 at 6:27 PM
Yup. And that 4000 number is ARRESTED, which is not a useful measure of anything besides the chaos being inflicted on our region.

Like yeah, we know you've arrested great quantities of innocent people. That's what secret police *do*
I'm really asking: What is the math on all of this? If Metro Surge started Dec 1, and they claim to have deported 4,000 people, at a cost of $18 million a week, and it's been ten weeks, they show no sign of leaving, and we leave out the murders—$2billion to destroy us?

kstp.com/kstp-news/to...
Operation Metro Surge leading to budget concerns for City of Minneapolis
There are concerns in the City of Minneapolis that Operation Metro Surge could lead to higher property taxes.
kstp.com
February 7, 2026 at 5:33 PM
Reposted by Christopher Danielson
Thread, oddly
Borges hosts The Muppet show. All the other characters are actual farm animals and he alone is a puppet
February 7, 2026 at 2:18 AM
Reposted by Christopher Danielson
Dinosaurs Survived!

All 15 designs so far.

www.emmalerae.com/store.html
February 6, 2026 at 11:07 PM
you kidding? that guy is gonna hear my boos from all the way back here in saint paul
February 6, 2026 at 6:54 PM
i happened across "ethos pathos and legos" in a work document just now and 2026 suddenly has a new contender for favorite typo
February 5, 2026 at 9:20 PM
Reposted by Christopher Danielson
Are you looking for support to attend the 2026 Ross Taylor Symposium in Duluth on April 23rd? Check out the Ross Taylor Mathematics Education and Leadership Scholarship. www.mctm.org/grants-schol... Deadline February 20.
February 5, 2026 at 6:03 PM
Reposted by Christopher Danielson
This morning at the Minnesota State Capitol.

An ice sculpture that reads "PROSECUTE ICE". I'm told the organization behind the sculpture is Common Defense.
February 5, 2026 at 3:26 PM
Reposted by Christopher Danielson
Back in 2022, we talked to @chadtopaz.bsky.social about equity in STEM subjects. Please go back and listen, and get in touch if you end up using any of these episodes for work/education/policy/social purposes - we'd love to hear from you! Please share, too: open.spotify.com/episode/2nWW...
February 5, 2026 at 3:22 PM
If only cyclists would obey the rules of the road
February 5, 2026 at 2:41 PM
Reposted by Christopher Danielson
Yay! The kickstarter for our mathy graphic novel AL, Logical is live! www.kickstarter.com/projects/nat... We appreciate any views, retweets, and support for this YA story of curiosity, perseverance, and problem solving.
AL, Logical! A Young Adult Graphic Novel
It's like a math circle, but in a haunted multi-dimensional mansion where a brave artist finds a restless ghost of a mathematician.
www.kickstarter.com
February 4, 2026 at 5:49 PM
An anthology of introductory paragraphs from news stories.

Maslow’s Hierarchy of Ledes
Paired with a listing of medieval historians called Maslow's Hierarchy of Bedes
A medieval-themed called Maslow’s Hierarchy of Meads
February 4, 2026 at 2:06 AM
Reposted by Christopher Danielson
I have lots of (former) math teacher friends who have been writing curricula. If you're interested in an awesome gig in this space, check out BEAM's current offerings (link: www.beammath.org/work-at-beam)
It's a GREAT organization (check it out if BEAM is new to you!)

#MTBoS #iteachmath

Pleast RT
February 4, 2026 at 12:11 AM
Reposted by Christopher Danielson
ICE tear gassed a bunch of children on Saturday. This was a massive escalation of force. They were shooting tear gas at the back of the crowd, it took these unmasked people maybe 3-5 minutes in the cloud of tear gas to escape in without trampling. www.theverge.com/policy/87278...
ICE is afraid of children protesting
“Next time, I’ll be back with a gas mask.”
www.theverge.com
February 3, 2026 at 2:11 PM
It is also wild to me that the DHS/ICE is building a database of our faces and license plates and addresses that they reference in real time as they please while crying about the potential for doxing if they remove their masks.
OH MY GOD THE MASKS. There is no reasonable way to argue that we should affirmatively allow a “law enforcement” agency to wear masks!

How are we supposed to know if they’re “law enforcement” or a random kidnapper?

Some day we’re going to get stories of all the kidnappings this enabled.
February 2, 2026 at 9:17 PM
Reposted by Christopher Danielson
So many serious and more important things going on, but our bit of math and art silliness, AL, Logical, a mathy graphic novel goes live on Kickstarter on Wednesday. If you can help us spread the word then, we'd love it. #mathart #mathstory
February 1, 2026 at 6:14 PM
Reposted by Christopher Danielson
Good school. Middle of all this crap. Good place to help if you can.
If you want to help Minneapolis families, this urban high school right near the burned-down 3rd precinct is such a special place, and is helping Somali, Latino, and Native families who are in hiding or whose employers have shut down, food, socks, all of it here:

www.gofundme.com/f/support-so...
Donate to Support South High School Families, organized by R S
South High School (Minneapolis, MN) parents are holding a special fundraiser specifically for S… R S needs your support for Support South High School Families
www.gofundme.com
January 31, 2026 at 9:38 PM
Reposted by Christopher Danielson
Email me your receipts by 7pm central on 2/1! Boost please! MplsAngryMittens@proton.me

StandWithMinnesota.com

Rent funds are the most immediate need. Here is one:

chuffed.org/project/1671...
January 31, 2026 at 3:49 PM
"Mr. Bovino did not respond to requests for comment."
They used "anti-semitism" as a pretext to deport foreign-born students and chill free speech, and their deportation chief -- the one with the nonstandard Hugo Boss-style greatcoat -- was spouting anti-semitic insults at a US attorney
Bovino Is Said to Have Mocked Prosecutor’s Jewish Faith on Call With Lawyers www.nytimes.com/2026/01/31/u...
January 31, 2026 at 7:40 PM