I submitted mine! #iTeachMath

🚨 HEADS UP: If you haven't submitted a comment on the OMB proposal yet, the clock is ticking. There are only 15 days left to push back against Russell Vought's attempt to give political appointees unprecedented control over federal research funding. Visit the link in our bio to take action!

What do mathematicians do? How do they make new mathematical discoveries? Why does that matter for K-12 math education? If you are a math teacher and you are curious about these questions, join in on "21st century mathematics" in July! Free, online, and flexible. www.youtube.com/watch?v=5UIx...

This is a great program! Definitely worth considering! #iTeachMath

Earlier this year, Martin Peterson made national news when Texas A&M warned him not to teach Plato's teachings on gender. www.nytimes.com/2026/01/07/u...

So apparently KPMG wrote a report describing the successful use of AI by businesses. But the case studies turned out to be AI hallucinations. www.ft.com/content/b382...

Taxpayers bleed between $132,000 and $197,000 every single day to fund the private cages at Delaney Hall. When public funds turn a profit for private prison corporations, human suffering becomes a highly lucrative business model. We break down the math behind this wealth-extraction machine. (1/10)

The stories & photos from today’s voting rights marches in Alabama deserve to be seen by people who weren’t able to stand there in person. If this piece moves you, please share it widely & help make sure these voices aren’t lost in the noise of a crowded news cycle. open.substack.com/pub/joycevan...

BREAKING: The DOJ is now 146 days overdue in releasing the Epstein files.

A new Golden Age....for frausters!

Students, if you’re thinking about dropping a note to that teacher or professor about what their class/project/mentorship has meant to you, but you worry it will be cringe or cheesy, let me just tell you they will coast on the fuzzy feelings prompted by that note for months, if not years

Great story of an 18th century farm kid's math notes www.tumblr.com/mathhombre/8...

It’s time. Meet in Selma. Saturday, May 16th. blackpowerwarroom.com/dayofaction/

I decided to build a pickleball court in my backyard. I told my wife (many times!) that neighbors would pick up the tab and it wouldn't cost us a dime. It turns out that we will have to pay for it by taking out a second mortgage or giving up our health insurance. I'm sure she'll be ok with it.

Post #2 on teaching polar coordinates. #iTeachMath #mtbos #MathsToday timcorica.substack.com/p/the-straig...

Virginia Redistricting Referendum Results: AP calls it for YES. www.nytimes.com/interactive/...

"The average IQ in Somalia hovers around 70, and that's the threshold for mentally handicapped ... they're a net drain on the society" -- even by MAGA standards, the unvarnished racism of this interview of Rep. Brandon Gill by Benny Johnson is breathtaking

New post: Taming the "Polar" Bear #iTeachMath #mtbos #MathsToday open.substack.com/pub/timcoric...

Working on a piece about polar coordinates, and reminded of the "rolling quarters" cycloid by @tenorfrank.bsky.social, I built this little @desmos.com animation. #iTeachMath www.desmos.com/calculator/d...

See our grades & analysis of 75 + front pages for #NoKings 3.0 coverage. The influential @nytimes.com @wsj.com continue trivialize the pro-democracy movement & #NoKings mass demonstrations. Good news: editors of local outlets continue to shine. 🧵 w/many front pages and link to blog post 1/n

This is great! Note: At least for me, it loaded slowly and I almost gave up on the first screen. Patience will be rewarded! #iTeachMath #mtbos

TIL: A German colloquialism for "quadratic formula" is Mitternachtsformel which translates, literally, to "middle-of-the-night-formula". That is, a formula which is so deeply memorized that if awakened in the middle of the night, the student could recite it. #iteachMath #MathsToday

I have stolen 12T of KitKats that were in transit and which you were probably hoping to buy in Poland forgive me the world is stressful and I needed a break

I’m no lawyer, but it seems to me that while the Capitol police have some immunity in doing their job, Sheehy does not and should be arrested and sued into oblivion.

This case is horrifying. The man had deferred action, was on a full path to a green card, is a college grad magna cum laude, and ICE arrested him randomly while looking for someone else: “What do we do?” said one ICE officer, to which another replied “We’re going to take him with us anyway.”

401,000 people moving state to state in fear of having legal documents invalidated (KS), jail time for using restrooms (FL, UT), loss of access to adult care (dozens) or youth care (dozens even in D-led states), & the message from “opposition” is still largely “you’re making too big a deal of this.”

What does "likely" mean, in terms of probability? This article looks at the question - I think it would make a great class exercise, where students give their own answers, and then read the article. #iTeachMath #MTBOS www.thetimes.com/uk/science/a...

BREAKING Former ICE agent: On my first day training new cadets, I received secretive orders to teach them to violate the Constitution by entering homes without a judicial warrant.

INBOX: the police chief of Quakertown, Pa., led a group of plainclothes officers to disrupt a peaceful high school student sidewalk protest yesterday. They threw an underage girl to the ground, choked her, and disconnected all calls to the detention center where she and others are currently held.

So why did ICE detain her, and keep her locked up for so long? As Karen got to know the guards at the Northwest ICE Processing Center where she was held, she kept hearing the same thing from them: that ICE officers are paid a bonus every time they detain someone. www.theguardian.com/us-news/2026...

NEW: DOJ told a judge in New Jersey that it had violated court orders about 54 times between Dec. 5 and this week — the latest accounting of a phenomenon that used to be rare and is now rampant. www.politico.com/news/2026/02...

I don’t really know what I expect in posting this, but maybe some people see it and can learn from it. I’ll call it “lessons from an unwilling immigration attorney.” 1/

At minute 57 of a 60 min Zoom session, a tutee asked "Why does the anti-derivative of 1/x contain absolute value bars?" Here, in four parts, is the answer I gave, followed by the answer I provided in writing the next day. #iTeachMath 1/4

Highlighting the speaker who stood in front of the Surprise mayor and told him to consider what the Mayor of Ohrdruf must’ve thought before he died by suicide: “He might have thought ‘how is this my fault I had no jurisdiction over this’ maybe he said ‘this site was not subject to local zoning.’”

An important choice by @profkeithdevlin.bsky.social .social , one of the leading math communicators of our time. #iTeachMath

Just had a chance to look this over - a very nice graph activity from @fractalkitty.com ! #iteachmath

Full letter from Laura Wittmann, the Uline employee who resigned rather than be complicit with the Trump regime by working for the Uihleins. Alt-text is below; typos are mind. Document taken from Reddit.

Will this be our Four Dead in Ohio?

How it started How it's going

Done! Women's Foundation Rapid Response fund.

Here is how to help: www.standwithminnesota.com

An investigation by that noted lefty rag the Wall Street Journal has found that using vehicles to box people in and then shooting them when they try to leave is a deliberate, repeat tactic by ICE. www.wsj.com/us-news/vide...

A Murder in Minneapolis open.substack.com/pub/charlies...

“carrying out strikes “ = destroying property and murdering people

20 minutes to watch this would be well-spent in an upper-level HS math class. Note the prevalence of women mathematicians in this cutting-edge work! #iTeachMath #mtbos

TIL: A parabola can be constructed based solely on the intersections of lines - no arcs or measurement needed. Easier to show than to tell: www.desmos.com/calculator/g... Some probs for Ss to come when time permits. h/t again to The Genius of Gaudi, Alsina and Nelson, p24. #iteachmath #mathtoday

TIL: The area of the parabolic segment between x=A and x=A+B depends *only* upon the value of B. This applies to any quadratic. h/t The Genius of Gaudi, Alsina and Nelson, MAA Press, p25. #iteachmath #mathtoday A Desmos illustration: www.desmos.com/calculator/o...

#mtbos #iteachmath Geez, I use examples like this in my A2 classes!

Reaching the Masses: Six Authors on Public Outreach [about Mathematics] A Zoom conversation with: Keith Devlin Marcus du Sautoy Jordan Ellenberg Sarah Hart John Allen Paulos Steven Strogatz ams.org/journals/not... PDF: ams.org/journals/not...

Trump reveals his health care policy: "You can give up certain products. You could give up medicine. Under the China policy, every child can get many medications. They only need aspirin or cough syrup. They don’t need that many. You don’t need lots of checkups for your daughter. 2 or 3 is nice."