I learned multiple verses of the song at the end as a NY state first grader and can (and will happily) sing them on request.

hyperbolic quilting - inspired by Costa-Wohlgemuth minimal surface

A lot of folks were approvingly sharing Kelsey Piper's post about the problems of educational research. Here's my take. // Ill-Informed Essays About Education Research are Weak and Sloppy. Why? edpolicyhub.substack.com/p/ill-inform...

I have a high school student who created a fictitious journal for Ramanujan for a class project, after researching his life. It's so cool, and has entries from a fictitious Ramanujan along with others. If this intrigues you, please follow&share this insta: www.instagram.com/lucie.r.vk_e... #MTBoS

I NEED HELP! Please take this quick, meaningless 19 question survey so I can get data for my students to learn stats! I did a similar version a few months ago but missed an important question type. Even if you did the old one, please do it again! Please circulate widely!

One of the big ideas I wish was better understood in ed discourse is the difference between textbook-adoption states (red) and non-textbook adoption states (blue). The levers of power are so different but so often ignored. AKA This could NEVER happen in NYS. www.nytimes.com/2026/04/07/u...

Long shot BUT does someone have the HS version of this that they’d be willing to swap for the K-5 version? I bought this and never needed it.

BEECHER WOULD HAVE BEAT HIS ASS INTO THE 17th CENTURY.

I said what I said

AI agent writes a PR, gets rejected, crashes out and writes a call-out blog post Absolute cinema crabby-rathbun.github.io/mjrathbun-we...

We shipped this new kind of thing today and I'm pretty pumped about it! Learners get to strategize about equation solving without having to perfectly execute every algebra move.

This isn't easy to share, but I'm grateful for any support, prayers, or encouragement during this season. Love to all. www.gofundme.com/f/support-fo...

No joke: I got angry hate mail today for writing an obituary of a Black woman scientist—because the person felt she did didn’t deserve the recognition. Which just makes me want to share it again: www.nature.com/articles/d41...

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.

Celeste Davis on gender and college celestemdavis.substack.com/p/why-boys-d... Matches my anecdotal experience.

It's BEAM hiring season! This is a phenomenal program. If it looks interesting, you should apply. New this year they're hiring curriculum developers. (I believe you have to be located in NYC or LA.) job-boards.greenhouse.io/beam?gh_src=...

Posted on the farm IG, but moving it here also. I made a mini quilt Rebel Loon for @anniekp.bsky.social. I’m gonna make a few more + protest mini quilts to raffle away. Want one? Call your senators. More details below. +

Hi hi I have really exciting news The Math Routine Collaborative starts back up THIS SUNDAY! Join us as the one and only @mfannie.bsky.social leads the routine Notice and Wonder You can register at strongermath.com/MRC to participate in math routines and unpack how to lead them in your classroom.

We have now deactivated our X account. Please share our bluesky account with people that have an interest in mathematics education, and maths manipulatives @cuisenaireco.bsky.social #mathseducation #manipulatives #playislearning #pedagogy #cuisenairerods

Phew a lot of trouble comes from the belief that maths is a big list of problems and a solution method for each one.

Omg I can’t. #gobills

I had a joke about Sophie Germain, but no one believed I wrote it.

Side note: "crafted lovingly by humans" is becoming the next premium something or other. More to the point: I need more people to go solve the preview pass puzzle so the batch gets to 100 and we get in. I just solved this puzzle to get access to Thinky Dailies! Try it out! thinkygames.com/dailies/

Very good piece on the quite fast rollout of "AI-powered" textbooks in South Korea. The government went from making the textbooks mandatory to supplementary because of complaints and now the textbook companies are suing because "the market suddenly disappear[ed]." restofworld.org/2025/south-k...

I'll just be over here banging my head against the table. www.theatlantic.com/ideas/2025/1...

I've been making paper constructions of pattern blocks, then decided to add some extra ones to the traditional set. I'm particularly proud of this irregular pentagon. Even though I worked this out according to my own agenda, it's characteristics are so cool that I have no doubt that it's a shape +

❤️ Love this ❤️ @mathforge.org has done what I’ve never been organised enough to do myself, and catalogued every #geometrypuzzle I’ve ever posted on social media. It looks amazing!

seems like the easier solution is to give everyone free healthcare and pay for it by like buying 17 less missiles or taxing 53 dudes 1.8 percent more

Geometry just needs to be two units: * Yep, it adds to 180! * Ok, but what if we cut it in half like THIS?

Will NYS math assessments ever not be the literal freaking worst?

200 years ago today, October 26, 1825: The Erie Canal was ceremonially opened in Buffalo, New York. The 363-mile-long artificial waterway stretched from Albany on the Hudson River to Buffalo on Lake Erie, connecting the Great Lakes to the Atlantic Ocean. It transformed Buffalo into a major hub.

Anyone out there know of a crosswalk between the Data Science Learning progressions and the Common Core SP standards? datasciencelearning.org

On of my geometry students just talked about the Angle Addition Prostitute and I think my day is over.

I've 100% met this lady. "WHAT I AM BOTHERED BY? UNILLUSTRATED WORD PROBLEMS. SO LET’S GET ILLUSTRATING" pershmail.substack.com/p/curriculum...

Is it universally true that there is a shortage of red cuisenaire rods? Or do they just blink into another dimension in my presence?

It is 2025 and computers still suck at fractions.

Sal Khan's career is very much a "right place right time" situation and he has not learned a single thing about teaching in all these years.

Hey #mathsky, would it be too nerdy if @bookshop.org branded their Anti-Prime free shipping deal "Composite"? Asking for a friend.

quick while the government is shut down let’s all switch to metric

Peter Singh TDSB : how do you ensure that time saved by #AI doesn't turn into "latte time" (his words) for teachers. Well first. Every time saving innovation over the past hundred years has not reduced teacher work hours. And second. OFFENDED. Microsoft #AITour #mtbos #onted

The gap between teacher pay and other college graduates’ pay is the highest it’s been in over four decades. Is there a “teacher shortage,” or a shortage of jobs that treat educators with the pay, dignity, and support they deserve?

@geogebra.org This is so cute www.geogebra.org/m/tmqgzrtj

Phew, demonstrating long division in base four starts to feel very numberwang very fast.

I was feeling lost about handling instructional time for operations in bases other than ten, and then I remembered that the worked example protocol exists. Thank you again for your wonderful book, @mpershan.bsky.social

As someone who's spent decades mapping the invisible—from creating 3D digital oceans to diving deep unexplored places—I'm moved by how satellite imagery just delivered justice for Argentina's penguins + other wildlife. SOMETIMES JUSTICE NEEDS COORDINATES! www.esri.com/about/newsro...

Yep a good-faith critique of learning loss would lead to proposals for a massive, New Deal-scale investment in public education. The people pushing the narrative are doing precisely the opposite.

classes start tomorrow and my brightspace isn't set up so of course I am ... decorating the back of my clipboard with all the random ass stickers lying around

As the piece notes, the PragerU propaganda is being used in schools in Louisiana, Florida, New Hampshire, Oklahoma, Montana, Arizona, South Carolina and Idaho. Check with your district to see if they're using this garbage to brainwash your kids.