I love a choropleth map. I was playing around with this one on ChatGPT usage (via @sherwood.news), which includes both the state's ranking and most frequent type of conversation. I rolled over all of the dark states and none of them lay claim to be #1. Then I saw: it's out of 51. DC is #1 for usage.

New #SlowRevealGraph "The 8 Fast Food Chains in the US Most Likely To Get Your Drive-Thru Order Right."

New #SlowRevealGraph Daily number of people aged under 18 detained by ICE (US Immigration and Customs Enforcement): Sept 2023 to Oct 2025. "More than 6x rise in ICE detention of children under Trump" via the Marshall Project

New #SlowRevealGraph: Right-wing content twice as likely to be shown to new X (twitter) users as left-wing or neutral content From an investigative report by the Sky News (UK) Data & Forensics Team (November 2025) -- check out their methodology

New #SlowRevealGraph: Low Trust, High Stakes: Which Institutions People Trust in the UK, Germany, and US Which institutions do people in these countries trust the most: healthcare? Banks? Nonprofits? Tech? The government?

New #SlowRevealGraph additions today: (1) Extreme poverty fell sharply worldwide -- even excluding China Almost 1b people have been lifted from extreme poverty in China since 1990! slowrevealgraphs.com/2026/02/21/e... (2) It's never been safer to fly commercial slowrevealgraphs.com/2026/02/21/f...

Extreme Poverty Fell Sharply Worldwide – Even Excluding China Extreme Poverty Fell Sharply Worldwide - Even Excluding China

We were invited to read from our books, which I did of course. But first I had some opening words, which I thought I'd share with you here. I'll share video too, once that's available.

Thanks to @jennalaib.bsky.social , @natbanting.bsky.social and others for the inspiration to do a fractions clothesline. My student were very engaged! #ITeachMath

Ramadan Mubarak! 🌙

“I don’t want to be in this place I want to go to my school.” - 7 year old imprisoned by ICE for 70 days in a concentration camp in Texas. Today, after @propublica.org published this story, the camp was raided to confiscate letters from the children. www.propublica.org/article/ice-...

Yay! #mathstoday one of my PSTs chose my #slowrevealgraph (made with @jennalaib.bsky.social's help, of course). slowrevealgraphs.com/2026/02/09/2... Most of the discussion was about what the thickness of the bands meant. Made it a stumper even after they got the olympic connection.

Love seeing @jennalaib.bsky.social using this framework. I learned from @deltadc.bsky.social . Often ask learners to pick one to consolidate thinking. Applying to planning is great. www.youtube.com/watch?v=1dH7...

Did you miss @jennalaib.bsky.social's Session? Watch the recording of it now! www.terc.edu/mathequityfo...

This is by no means an exhaustive list. Every now and then I add to it.

New #slowrevealgraph 2026 Winter Olympics Will Host More Events Than Ever data viz by @sherwood.news, slow reveal by @johngolden.bsky.social slowrevealgraphs.com/2026/02/09/2...

A middle school student in Indianapolis submitted this. He made both the data visualization AND the slow reveal. Great work! new #slowrevealgraph Tallest Roller Coasters

I have a student in my 7th grade class that is new to English. I have been using Google Translate to translate some things into Russian for him. Today, the kids worked on a pre-unit assessment. I had Google Translate it into Russian. 🧵/1

It's time for the 2026 Winter Olympics! Which countries have won the most medals in the Winter Olympics?

I'm looking forward to this tomorrow! Free for all.

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

Session 3 of our Speaker Series is 7-8 EST on 2/4/26. Hear @jennalaib.bsky.social on how data gathered from students can inform responsive instruction that builds on their strengths, addresses their needs & creates meaningful math learning for all. Register: lp.constantcontactpages.com/sl/HKaippJ

New Post] Ontario Math Links - My favourite #math related links from this week: ontariomath.blogspot.com/2026/01/math... links and help from @tbrzezinski.bsky.social @howiehua.bsky.social @benjamindickman.bsky.social @curiouspolymath.bsky.social and more #MathChat #MTBoS #iTeachMath

Day 5 of the math art class I’m teaching is complete. Today involved finishing up the stained glass window pieces and doing more hitomezashi stitching. #mtbos #mathart

1/7 I've been making #slowrevealgraph sequences to help make sense of what is going on. Here's one that looks at the number of deportations each year within the past four presidential administrations. bit.ly/icedeportati... #ANNMath #ITeachMath #MTBoS

Excellent thread critiquing the onslaught of AI in education spaces! I will have to listen to the episode later.

New #SlowRevealGraph: Winners of the Caldecott Medal and Newbery Award, by Gender (2001-2025) Data visualization by Travis Jonker (@100scopenotes)

Blog post! Statistics lesson that revved me up this week on summary statistics. mathhombre.blogspot.com/2026/01/who-... #mtechat #mathstoday

New #SlowRevealGraph Fraction of the moon's nearside that is visible over 64 day cycle

Inspired by @mburnsmath.bsky.social's session, Session 3's speaker @jennalaib.bsky.social wrote this. "To assess learning & development, I need to look more closely at how Mia reasoned thru the tasks, not just how many ?s she answered correctly. This is what I love most about interview assessments."

@jennalaib.bsky.social thanks for the rec #mathstory

I wrote up a bit about Minneapolis right now, mostly to share with my coworkers and family, but if it works for you, you can share it, too. arbitrarilyclosecom.wordpress.com/2026/01/11/o...

No, autistics do not “lack empathy”: “Where researchers had assumed impairment, they found autistic people applying moral principles more consistently—even to strangers, even when costly.” By Ludmila Pradlova. **This includes non-speakers &/or peeps w/ID** www.psychologytoday.com/us/blog/posi...

New #SlowRevealGraph Some animals live, on average, for hundreds of years!

Highest-Paid Athletes in the World: Comparing Salary/Winnings with Endorsements

Women’s Political Power: Number of Countries that Have Had a Women Head of State or Government Women's Political Power: Number of Countries that Have Had a Women Head of State or Government

New #SlowRevealGraph Comparing Oil Production Per Day with Oil Reserves, by Country, 2024 Venezuela has the world's largest proven oil reserves -- but lags in production. Includes handouts for students to calculate and compare the Reserves-to-Production (R/P) ratio of different OPEC nations.

New #SlowRevealGraph Why Are We Seeing More Auroras? Solar Cycle Sunspots (1980s - present)

New #SlowRevealGraph More Expensive Areas Tend To Have Lower Share of Gen Z Homebuyers From my wonderful colleague Jen Jordan :)

Today, while listening to a kids podcast, we repeatedly heard an ad for a protein yogurt, that promises to “do the math, so you won’t have to.” I’ve heard of green washing, and pink washing… is there a mathwashing term? It is even called ratio!

So reaffirming to read your post. Interviews have changed my teaching dramatically and I've blogged lots. (Marilynburnsmath.com) I loved reading about your perspective and experience.

A Human on a Bicycle is Among the Most Efficient Forms of Travel in the Animal Kingdom (best aligned to upper-secondary courses like AP physics, AP bio, precalculus, stats)

As pointed out by @paulakrieg.bsky.social and noted by @mpershan.bsky.social, longtime #mtbos partner and collaborator Malke Rosenfeld passed away last year. She investigated and taught the mind-body math connection, engaging hundreds of teachers and learners in #mathart - dance! RIP great friend!

New #SlowRevealGraph Countries That Pay Their Olympic Gold Medalists The Most (Paris 2024) Lots of content connections for upper elementary students, including comparing values, using multiplicative comparisons, and using multiplication to determine values.

The implicit assumption that secondary math ed has nothing to learn from elementary math ed genuinely makes me furious.

Strong work here! Also, it would be fun to run these numbers a second time, but using percentages of *disposable* income (i.e. after basic housing, food, transportation, child care, and health care needs are paid for)

New Blog Post: Measuring Growth in Mathematical Reasoning: What Mia’s Thinking Reveals In October, Mia correctly answered 10 out of 12 questions. In December, Mia correctly answered 10 out of 12 questions. Again. And yet, the December interview demonstrated significant growth. How?

Top 10 Largest Free Music Concerts (Worldwide) Top 10 Largest Free Music Concerts (Worldwide)

New #SlowRevealGraph Number of Rat Sightings in Selected Cities (Logarithmic Scale)

#playfulmath carnival 183! mathhombre.blogspot.com/2025/12/play... Writing on teaching, fun math, puzzles, games, art...