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Bryan Meyer

@doingmath.bsky.social
202 followers 120 following 229 posts
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Reposted by Bryan Meyer
Paris Marx @parismarx.com · 15/02/2026
OpenAI ”acknowledged in its own research that LLMs will always produce hallucinations due to fundamental mathematical constraints that cannot be solved through better engineering, marking a significant admission from one of the AI industry’s leading companies.” You can’t trust chatbots.
computerworld.com
OpenAI admits AI hallucinations are mathematically inevitable, not just engineering flaws
In a landmark study, OpenAI researchers reveal that large language models will always produce plausible but false outputs, even with perfect data, due to fundamental statistical and computational limi...
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Bryan Meyer @doingmath.bsky.social · 31/01/2026
Hi @comapmath.bsky.social ! I’m looking for print Teacher’s Editions of your high school ‘Modeling our World’ series, but don’t see them available in your store (or anywhere). Know if/where I can find them?
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Reposted by Bryan Meyer
Jonathan Hall @studymaths.bsky.social · 18/01/2026
Specialise, Conjecture and Generalise. A three-step plan to encourage and develop mathematical thinking. I'm going to use this thread to share a few of my favourite tasks that lend itself nicely to this idea. It would be amazing if everyone added their own in the replies.
A poster demonstrating how you can use a three-step plan of specialising, conjecturing and generalising to solve mathematical problems. The poster is split into four areas:

1) The classic problem "How many squares are on a chessboard?"
2) Solving the problem with much smaller boards.
3) Arriving at a conjecture involving square numbers.
4) Generalising the problem ofr all board sizes.
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Ilana Horn @ilanahorn.bsky.social · 09/01/2026
In this editorial, I explore what it means to teach (mathematics) in a time of polycrisis. I use Anna Tsing's argument from "The Mushroom at the End of the World" to unearth the capitalist logics that underlie much of our educational enterprise to reimagine new possibilities. #iteachmath #EduSky
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The Maths Bazaar @themathsbazaar.bsky.social · 18/12/2025
Unexpected email from Jonny Griffiths telling me there's a new 2026 update of his RISPS book, that's great investigations for impressionable A Level students. Download it now from www.risps.co.uk with links to Geogebra and Excel files @jonny-griffiths.bsky.social
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Bryan Meyer @doingmath.bsky.social · 18/12/2025
Hey #statistics friends, I need help with a question: With single variable data, we typically use MAD or StdDev as measures of variability. Why don't we just use MAE ('mean absolute error') or MSE ('mean squared error') as measures of variability for bivariate data?
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Reposted by Bryan Meyer
Ralph Pantozzi @mathillustrated.bsky.social · 17/12/2025
“When do our students really understand the algorithms we teach? When they can use them effectively, or when they understand how they work, and can reconstruct them if they forget crucial steps” dylanwiliam137385.substack.com/p/onions #iTeachMath
A square table of 25 numbers 

5
11
3
14
7
13
19
11
22
15
16
22
14
25
18
20
15
7
18
11
7
13
16
9
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Reposted by Bryan Meyer
Dave Kung @dtkung.bsky.social · 01/12/2025
Is the point of mathematical research to know *what* is true or to know *why* it's true? Emily Riehl lays out a strong argument - and what it has to do with AI - along great advice for the field in @science.org www.science.org/doi/10.1126/...
science.org
Mathematics is hard for mathematicians to understand too
At a recent conference on mathematics in the age of automated proofs, mathematician and Fields Medalist Akshay Venkatesh presented “How do we talk to our students about AI?'' He quoted an email he'd r...
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Reposted by Bryan Meyer
Charles Logan @charleswlogan.bsky.social · 10/12/2025
"Big Tech and data center developers appear to be siting data centers in vulnerable communities...These locations show a troubling trend - they primarily impact working class and Black and Latine communities."
kaporfoundation.org
The Unequal Burden of Data Centers - Kapor Foundation
An examination of the Environmental and Public Health Impacts on Communities in California
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Bryan Meyer @doingmath.bsky.social · 10/12/2025
Anyone have ideas about connections between sound/music and trig functions? cc: @averypickford.bsky.social @maria-naturalmath.bsky.social #iteachmath
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Reposted by Bryan Meyer
Jess Calarco @jessicacalarco.com · 19/11/2025
Humans are bad at big numbers. Which makes it easier for billionaires (and trillionaires) to get away with hoarding wealth. Because most people just can't comprehend how much money that is. So, I appreciate this WaPo effort to help people visualize what ridiculous amounts of wealth really mean.
Elon Musk is set to make more than every U.S. elementary teacher combined
See how your profession stacks up against Musk’s pay.

By Alyssa Fowers and Leslie ShapiroEvery elementary school teacher
On average, Musk will make $3 billion more per year than the 1.4 million elementary school teachers in the U.S. combined.

Each figure  represents 1,500 elementary school teachers. Together, they made $97 billion last year
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Reposted by Bryan Meyer
NCSM: Leadership in Mathematics Education @mathedleaders.bsky.social · 06/12/2025
Math education is complex. It can’t be reduced to single studies or one-size-fits-all claims. NCSM’s new position paper offers a balanced, equity-centered, research-informed alternative—one that honors the real nuance of teaching + learning. Read more → mathedleadership.org/position-papers
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Robert Reich @rbreich.bsky.social · 21/11/2025
Thanks to his new Tesla pay package, Elon Musk could stand to make $3 billion more per year than all 1.4 million elementary school teachers in the U.S. combined. Still wondering if inequality is out of control?
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Bryan Meyer @doingmath.bsky.social · 21/11/2025
I want to learn more about how (high school) math is used in building AI. Any recommendations? @jedediyah.com @tombutton.bsky.social @dandersod.recursiveprocess.com
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Bryan Meyer @doingmath.bsky.social · 03/11/2025
Anyone know of an applet that will allow a user to draw a “modified” unit circle (not perfectly circular) and see the periodic function that results from it? Or something similar. cc: @hpicciotto.bsky.social @jlanier.bsky.social @averypickford.bsky.social @benjamindickman.bsky.social
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Mrs P ♥️ maths @mrs-p-maths.bsky.social · 24/10/2025
Lovely #oracy work on indices in #MathsToday. We haven't covered negative indices yet but this got them pondering negative indices and considering non integer values for a and b as well as 0 and 1. Looking forward to delving deeper next lesson.
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Bryan Meyer @doingmath.bsky.social · 07/10/2025
Any #iteachphysics folks have time-lapse still images of falling objects I can use? cc: @afreeparticle.com @meganhg.bsky.social
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Reposted by Bryan Meyer
Aaron Rupar @atrupar.com · 30/09/2025
Trump, who is numerically illiterate -- listen to this clip to see what I mean -- benefits immensely from the numerical illiteracy of the American public
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Bryan Meyer @doingmath.bsky.social · 30/09/2025
Ok #mtbos hive-mine… Who has a set of thoughtfully sequenced number talks (aim is for 9th graders in an additional support class)?
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Reposted by Bryan Meyer
Edutopia @edutopia.org · 30/09/2025
From Math Gremlins to Belonging Bios, these fun, powerful activities from @lieslmcconchie.bsky.social help develop students’ math identities *and* boost their achievement! 🚀 #MathSky #ITeachMath
edut.to
4 Activities to Foster a Positive Math Identity
Developing a positive sense of self in relation to math can have a major impact on student achievement.
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Reposted by Bryan Meyer
COMAP Math @comapmath.bsky.social · 18/09/2025
Climate change was predicted long before it arrived, thanks to the power of modeling. This Quanta Magazine piece shows how scientists used computer models to understand and forecast the planet’s future. 🔗 www.quantamagazine.org/how-climate-... #MathModeling #ClimateChange #MathEducation
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Reposted by Bryan Meyer
Steven Strogatz @stevenstrogatz.com · 18/09/2025
.@quantamagazine.bsky.social has devoted a whole issue to the fundamental science of climate. Can't wait to read this – we hear so much about climate change, but so little about the basic science. Press: www.newswire.com/news/quanta-... Issue: www.quantamagazine.org/how-we-came-...
newswire.com
Quanta Series Marvels at 'The Achievement of Climate Science'
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Reposted by Bryan Meyer
Darren Macey @darrenmacey.bsky.social · 16/09/2025
#Statistics #teaching often focuses on rote learning of mean/median/mode & graph drawing, but this is not what education research says. In fact, since the early 90s recommendations have been remarkably consistent!
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Darren Macey @darrenmacey.bsky.social · 16/09/2025
What is ‘evidence-informed’ #statistics #teaching? As part of our work reviewing the evidence for #MathsWeekScot we (@honeypisquared.bsky.social and I) have collected a few ideas and links which may be helpful… #ITeachMath
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The Mystery of the Missing Percentage Sign @annlovesmaths.bsky.social · 10/09/2025
An Immersive New Museum Dedicated to Maths is Opening in London - Featuring Code-Breaking, Experiments, Challenges and more @mathsworld.com secretldn.com/mathsworld-i...
secretldn.com
An Immersive New Museum Dedicated To Maths Is Opening In London – Featuring Code-Breaking, Experiments, Challenges, And More
MathsWorld is an exciting new discovery centre that will challenge, intrigue, and delight Londoners with its immersive attractions.
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They-Ra @xanindigo.bsky.social · 03/09/2024
The sad thing is that maths is full of beautiful and interesting things, but schools somehow manage to make it boring anyway.
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Bryan Meyer @doingmath.bsky.social · 29/08/2025
Hi @comapmath.bsky.social! Question for you: How can someone get started in coaching a math modeling team? Do you (or others) offer any kind of training to support new team coaches?
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Reposted by Bryan Meyer
Nick Covington @covingtonedu.bsky.social · 06/08/2025
You can use this tool to find out just how much funding your local district (or any district in the country) will be losing in the new federal budget: "DES MOINES INDEPENDENT COMMUNITY SCHOOL DISTRICT will lose $8,175,391 in federal funding." public.tableau.com/app/profile/... #EduSky #EdChat
HOW MUCH WILL YOUR SCHOOL DISTRICT LOSE?
Federal budget cuts to public education will eliminate afterschool and summer programs, arts and technology classes, teachers, emergency preparedness, mental health services, and more.

Search for your state and school district to see how much your child’s education will be impacted.

DES MOINES INDEPENDENT COMMUNITY SCHOOL DISTRICT
will lose $8,175,391 in federal funding.
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Reposted by Bryan Meyer
Rachel Lambert, prof at UCSB, teacher! @mathematize4all.bsky.social · 06/08/2025
Petition by UC Faculty Association for the UCs stand up to Trump govt demands. UCs are a gem, and contribute so much to CA and USA. We need to protect them from gov't takeover/meddling (I cant believe that is an accurate statement!)All can sign! sites.google.com/view/ucstand... #EduSky #AcademicSky
sites.google.com
Home
Please forward this letter widely at https://tinyurl.com/ucstandup
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The Tennessee Holler @thetnholler.bsky.social · 26/07/2025
How it started How it’s going Oklahoman School’s superintendent Ryan Walters edition “2 members of the State Board of Ed shocked and mad when they saw a video featuring naked women on the TV in Walters’ office during executive session” nondoc.com/2025/07/25/b...
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Reposted by Bryan Meyer
steven monacelli @stevanzetti.bsky.social · 19/02/2025
REVEALED: we identified the operator of an overtly racist X account, "GlomarResponder," as ICE Assistant Chief Counsel James Rodden, based on an overwhelming number of biographical details matched through publicly available documents, other social media activity, and courtroom observation.
texasobserver.org
ICE Prosecutor in Dallas Runs White Supremacist X Account
The Observer has identified the operator of “GlomarResponder,” an overtly racist social media account, as ICE Assistant Chief Counsel James Rodden, based on an overwhelming number of biographical details matched through publicly available documents, other social media activity, and courtroom observation.
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Reposted by Bryan Meyer
Tracy Zager @tracyzager.bsky.social · 24/07/2025
#ITeachMath
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Nathan Day @nathanday.bsky.social · 20/07/2025
These are the first slides I made on Islands.
Islands are made up of pieces of land completely surrounded by beaches. This island has 28 km? of land, and 40 km? of beach.

What questions could you ask about islands?Islands are made up of pieces of land completely surrounded by beaches. This island has 28 km? of land, and 40 km of beach.

a. What is the smallest possible island that has more land than beach?

b. Can you make an island with the same amount of land as beach?

c. Is the amount of beach always more than the perimeter of the land?
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Dan Wekselgreene @dwekselgreene.bsky.social · 13/07/2025
Playing Mastermind with my 6 year old inspired me to make this in #Desmos. I discovered I'm a lot worse at guessing than I thought! #MTBoS #iteachmath classroom.amplify.com/activity/687...
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Jay Van Bavel, PhD @jayvanbavel.bsky.social · 13/07/2025
Platforms could redesign their algorithms to stop promoting the most outrageous voices & prioritise more representative or nuanced content The internet is a powerful tool. But if we let it reflect the world created by the most extreme users, we all suffer. www.theguardian.com/books/2025/j...
theguardian.com
Are a few people ruining the internet for the rest of us?
Why does the online world seem so toxic compared with normal life? Our research shows that a small number of divisive accounts could be responsible – and offers a way out
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Alfie Kohn @alfiekohn.bsky.social · 14/07/2025
1/2 Eleanor Duckworth's reminder: The more intensely interested a teacher is in a student’s thinking, the more interested the student becomes in his or her own thinking. Corollary: The more a teacher just wants to see right answers, the less interested students become in their (or any) thinking.
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Nathan Day @nathanday.bsky.social · 08/07/2025
Calling all Maths teachers! What are some of your all-time great tasks for secondary Maths? Ones that could have their place in any curriculum, one that should be studied in PGCE courses, ones that started whole new genres of tasks... ... or just ones you really like. (see some of mine below)
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Bryan Meyer @doingmath.bsky.social · 03/07/2025
I know some people are super jazzed about ‘data science,’ but a basic intro to graph theory, linear algebra, and probability seem increasingly important topics for high school mathematics, to me. What do you think? #mtbos #edusky #iteachmath
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Celeste Ng @pronounced-ing.bsky.social · 28/06/2025
Anytime someone you know mentions using ChatGPT or any other genAI, say "you know, I read this article about how incredibly bad for the environment genAI is" and refer them to this article.
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The Tennessee Holler @thetnholler.bsky.social · 21/06/2025
CATO: “New nonpublic data from ICE indicates the government is primarily detaining individuals with no criminal convictions of any kind… 93% had no violent convictions… 65% no criminal record at all…” @MarshaBlackburn www.cato.org/blog/65-peop...
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Bryan Meyer @doingmath.bsky.social · 20/06/2025
Hi @jlanier.bsky.social ! Is your 21st Century Math group meeting every day during the four week window? Or only certain days? And, if someone wanted to join for part of that time but not all, do you have an outline of what you’ll be doing at various points?
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Ilana Horn @ilanahorn.bsky.social · 18/06/2025
pure evil #ProtectTransKids
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Rick Steves @ricksteves.bsky.social · 17/06/2025
In the spring of 2008, I feared America was on the verge of war with Iran — and, believing that it’s good style to get to know people before you bomb them, I made “Rick Steves’ Iran,” a one-hour special that could (and would) only debut on PBS. Sadly, this special has become pertinent again today.
ricksteves.com
Iran
Join Rick as he explores the most surprising and fascinating land he's ever visited: Iran. In a one-hour, ground-breaking travel special on public television, you'll discover the splendid monuments of...
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Fawn Nguyen @fawnnguyen.substack.com · 11/06/2025
NEW post: The Illusion of Thinking fawnnguyen.substack.com/p/the-illusi...
fawnnguyen.substack.com
The Illusion of Thinking
Reasoning models collapse—kids don’t have to
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Fawn Nguyen @fawnnguyen.substack.com · 06/06/2025
NEW post: The Breakfast Club fawnnguyen.substack.com/p/the-breakf...
fawnnguyen.substack.com
The Breakfast Club
With syrup stains and borrowed answers
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Osmin Fox @osminfox.bsky.social · 25/05/2025
I made a tiny tune in #desmos calculator! @desmos.com
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Jennifer Hartshorn @editorjen.bsky.social · 24/05/2025
The skills I worry the most about - judgment, critical thinking, nuanced communication, logical reasoning - are very hard to capture in a standardized test.
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Supper Mario Broth @mariobrothblog.bsky.social · 23/05/2025
If you have ever felt that 200cc in Mario Kart 8/Deluxe is much faster than it should be, your suspicions are correct. Based on the formula followed by the other engine classes, the speed the game pretends is 200cc is actually 415cc instead.
In Mario Kart 8/Deluxe, 200cc feels much
faster compared to 150cc than 150cc does
compared to 100cc. This is because it actually
is about 38% faster than it should be based
on the ratio between top speed and class
as established by 50cc, 100cc and 150cc.  
If the formula established by the other
engine classes is followed to calculate
the engine class that 200cc should be
based on its top speed, then the result
indicates that the true engine class the
game claims is 200cc is actually 415cc.
Source: reddit.com user "sammy_zammy", reddit.com/comments/1kkd7d5
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Elizabeth Jacobs, PhD @elizabethjacobs.bsky.social · 22/05/2025
Many of us who read Project 2025 have been saying from the start that The Regime has a unifying goal of destroying US scientific infrastructure and causing the collapse of Universities. We were called “hysterical”. www.nytimes.com/interactive/...
nytimes.com
Trump Has Cut Science Funding to Its Lowest Level in Decades
The lag in funding extends far beyond D.E.I. initiatives, affecting almost every area of science: chemistry, computing, engineering, materials and more.
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Kyle Cheney @kyledcheney.bsky.social · 22/05/2025
BREAKING: A federal judge has blocked the Trump administration from dismantling the Department of Education and ordered the administration to reinstate employees fired in a mass termination. This can't happen without cnogressional approval, she ruled. storage.courtlistener.com/recap/gov.us...
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