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Reposted by benjamin dickman

benjamin dickman @benjamindickman.bsky.social · 24/09/2026

amplifying boosting promoting etc! #iTeachMath #MathSky

benjamin dickman @benjamindickman.bsky.social · 27/09/2026

just 55 (1+2+...+10 = 1²+...+5²) years until the date is 09/27/81 = 3² / 3³ / 3⁴ not sure if i will be alive (age 95) not sure humans will be alive but the time will come! #iTeachMath ♾️

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benjamin dickman @benjamindickman.bsky.social · 24/09/2026

ayyyyyyy i mean, the hashtags alone merit a look!!

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benjamin dickman @benjamindickman.bsky.social · 20/09/2026

not sure how much of this [by Po-Shen Loh but in Terry Tao's blog] is new or couldn't be inferred(ish) from Francis Su's M4HF. and/but! i like this line: > Driving a car faster than you can run is fine. But not faster than you can steer. terrytao.wordpress.com/2026/09/19/w... #iTeachMath #MathSky

terrytao.wordpress.com

Why Do We Need Human Mathematicians Anymore?

[This is a guest post by Po-Shen Loh, crossposted from his blog, where an illustrated version appears. This blog post was initially written in a different file format and converted using AI. &#8212…

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benjamin dickman @benjamindickman.bsky.social · 18/09/2026

my alma mater (Amherst College) is celebrating 50 years of coed grads; assembled among their materials is a brief profile of Mary Catherine Bateson, whose book on Composing A Life 📚 I couldn't recommend more highly! www.amherst.edu/news/magazin...

amherst.edu

Catherine Bateson | The Women of Amherst from A to Z | Catherine Bateson | Amherst College

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benjamin dickman @benjamindickman.bsky.social · 18/09/2026

newest MOTHERFUNCTOR!: newsletter.motherfunctor.co/archive/forc... @courtneygibbons.phd closes w: > Anyway, if you're not on Bluesky, you've missed some incredible content (Excellent summary of & commentary on math × AI shenanigans of late...) cc #iTeachMath ♾️ #MathSky 🧮

newsletter.motherfunctor.co

Forcing Solutions?

Forced Navier-Stokes, and the unforced errors of a doom-mongering corporation spending millions to beat mathematicians to the math. (Wherein I tell you how I really feel!)

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benjamin dickman @benjamindickman.bsky.social · 17/09/2026

finally! a rational, real, wholesome, possibly natural (altho not integral?) thread 🧵 addressing denominators

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benjamin dickman @benjamindickman.bsky.social · 13/09/2026

I have variously read the MAA Values blog over the years and I think this is an interesting piece to include: maa.org/math-values/... Math Values has been the source of (?) Testimonios and Living Proof. Has the direction changed over the years? The above is v disconnected from most mathers on bsky!

maa.org

I’m an Accountant. Why Am I Solving Open Math Problems? – Mathematical Association of America

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benjamin dickman @benjamindickman.bsky.social · 11/09/2026

Fellowship Placement: United States Senate science.osti.gov/wdts/einstei... "Dr. Benjamin Dickman has been a full-time educator for the past twelve years..." — #iTeachMath #MathSky #EduSky

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benjamin dickman @benjamindickman.bsky.social · 05/09/2026

[from rereading items related to mathematical modeling by/for the recently departed Henry Pollak] Pollak's description of a presentation: "a series of digressions tied together by non sequiturs" source: journals.library.columbia.edu/index.php/jm... (see: the first paper from Alan Schoenfeld)

journals.library.columbia.edu

2013: Proceedings: Conference on Mathematical Modeling | Journal of Mathematics Education at Teachers College

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benjamin dickman @benjamindickman.bsky.social · 04/09/2026

two notes, in reverse order: 2. my # of votes was converging to the value! 1. two summers ago, I participated in The Big Internet Math-Off to explore the q: what is the probability that, for two "randomly" selected natural numbers, they are relatively prime? 🔗 link: aperiodical.com/2024/07/the-...

aperiodical.com

The Big Internet Math-Off 2024, Round 1, Match 1

It’s math-off time! Here’s the first match in this year’s Big Internet Math-Off. Today, we’re pitting Katie Steckles against Benjamin Dickman. Take a look at both pitches, v…

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benjamin dickman @benjamindickman.bsky.social · 04/09/2026

New citation of the article linked below! The citing article is: www.mdpi.com/2227-7102/16... "Spatial and Epistemic Agency When Engaging with Math Walks at a STEM Residential Camp" by Elizabeth Stringer, Aleshia Hayes, and @cwalkington.bsky.social

mdpi.com

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benjamin dickman @benjamindickman.bsky.social · 30/08/2026

since it appears satisfactorily solved in the 🧵 (???) here is some thinking from my weekend brain 🧠: 6x² + 5x + 1 = 0 has reciprocal roots after reversing coefficients i.e. x² + 5x + 6 = 0 that last one is v familiar, and factors with solutions: -2 and -3 so the original has solutions: -½ and -⅓

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benjamin dickman @benjamindickman.bsky.social · 26/08/2026

Periodic reminder that FiddleBrix is 🆓 To download 🆓 To play and 🆓 Of ads! 🎻🧱 #FiddleBrix Wednesday, August 26, 2026 0:37 (no hints!) 🟪🟪🟪🟨 🟪🟨🟨🟨 🟪🟪🟦🟨 🟦🟦🟦🟦 fiddlebrix.com

fiddlebrix.com

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benjamin dickman @benjamindickman.bsky.social · 19/08/2026

📍 Opinions expressed here are personal and not representative of the positions or policies of the AEF Program.

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benjamin dickman @benjamindickman.bsky.social · 14/08/2026

Haven't posted enough #iTeachMath content on Bluesky (or #Mathsky etc) so here is a nice proof I came up w independently‼️ + a problem that can be solved similarly AND one that needs a different method: Prove: There are infinitely many primes of the form 4n+3. Harder: 4n+1 Problem: 6n+1 or 6n+5?

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benjamin dickman @benjamindickman.bsky.social · 05/08/2026

i appreciate a fresh opinion piece on tracking, even (esp'ly?) when it's in good faith and/but doesn't align w my own beliefs in any case: this is from the Boston Globe Editorial Board as they opine on matters re: Cambridge (Mass.) public schools www.bostonglobe.com/2026/08/03/o...

bostonglobe.com

It’s OK to track middle school math, Cambridge - The Boston Globe

Separating kids into different math classes based on their abilities is the least-bad way for schools to meet the needs of students who learn at different speeds.

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benjamin dickman @benjamindickman.bsky.social · 04/08/2026

amplifying Math Task Studio [Substack] on behalf of ... @ldietiker.bsky.social = Leslie Dietiker & Meghan Riling & Rashmi Singh mathtaskstudio.substack.com their directions: "Please repost to let math teachers, curriculum designers, and math teacher educators know!" cc #iTeachMath ♾️ bcc #MathSky 🧮

mathtaskstudio.substack.com

Math Task Studio | Substack

My personal Substack. Click to read Math Task Studio, a Substack publication. Launched 4 hours ago.

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benjamin dickman @benjamindickman.bsky.social · 03/08/2026

a post on "trigonomial functions" #iTeachMath ♾️ created for PROMYS for Teachers 2.0: docs.google.com/presentation... tl;dr Can you write cos(nx) as a polynomial in cos(x)? e.g., cos(2x) = -1 + cos^2(x) In our notation, this would become: T_2(x) = -1 + x^2 🚨no spoilers if you've seen it before!🚨

docs.google.com

Presentation: Trigonomial Functions

Trigonomial Functions Dmitry, Benjamin, Tyler PROMYS for Teachers 2.0 2026 CE, Summer

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benjamin dickman @benjamindickman.bsky.social · 01/08/2026

this is pretty wild, #iTeachMath + #MathSky ♾️ i include below a screenshot of the Abstract the first result concerns work by Henry Cohn, who finished his 3 weeks of lecturing at PROMYS (Boston Univ.) yesterday. some good reading material for his flight back to PROMYS UK! openai.com/index/ten-ad...

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benjamin dickman @benjamindickman.bsky.social · 01/08/2026

New JHM! The July 2026 issue includes an article by a student I taught for whom this was her grade 11 independent research project: scholarship.claremont.edu/jhm/vol16/is... She explored an area of #mathematics called "queueing theory" and wrote all about it in the context of Disney! #iTeachMath ♾️

screenshot of linked paper: title text, name, affiliation, and synopsis

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benjamin dickman @benjamindickman.bsky.social · 31/07/2026

amplifying! 🗣️ s/o to all educators who work w children in summer camps: i have been the "camper" twice this summer (Math in the Mountains Teacher Teacher Program, PROMYS for Teachers) and both have had a separate and/but important component aimed at the youth mathin' is fun y'all 🧮🤝♾️

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benjamin dickman @benjamindickman.bsky.social · 22/07/2026

Excited to join the #EinsteinFellows26 cohort! www.businesswire.com/news/home/20... Different press releases to follow; that was the first I found (: For the Albert Einstein Distinguished Educator Fellowship Program (AEF) I will spend the next academic year placed in... the United States Senate 🏛️

photo taken by me of the US Capitol back in February 2026 when I was interviewing for this fellowship

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benjamin dickman @benjamindickman.bsky.social · 13/07/2026

rip to the great Henry Pollak 🕊️ en.wikipedia.org/wiki/Henry_O...

Email notification from the Program in Mathematics at Teachers College, Columbia University. The body of the email in this screenshot reads:

The Program in Mathematics is greatly saddened to inform you that, on July 8th, Henry Pollak, a distinguished mathematician and mathematics educator, a long-time member of our faculty, passed away.

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benjamin dickman @benjamindickman.bsky.social · 04/07/2026

my first academicky update in ½ a year is out today; co-authored w Bharath Sriraman: link.springer.com/article/10.1... > Author Contributions: B.S. developed the theoretical framework and wrote Sections 1–8. B.D. contributed the classroom observations and wrote the Notes from the Classroom section.

link.springer.com

Sense, Nonsense, and the Hadamard Paradox - Interchange

This paper examines whether Large Language Models can reliably distinguish genuine insight from plausible confabulation. Through analysis of constraint hierarchies in textual generation, it demonstrat...

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benjamin dickman @benjamindickman.bsky.social · 01/07/2026

For #iTeachMath + #MTBoS etc, please note category 3: > Excellence in leadership in the mathematics community (construed broadly) I'm sure many of you know someone who could be nominated. So: Nominate them! And do so before July 10, 2026 (Friday of next week)

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benjamin dickman @benjamindickman.bsky.social · 01/07/2026

if you're literate or know others who are / might be... cc #iTeachMath ♾️ expand your brain! ⬇️

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benjamin dickman @benjamindickman.bsky.social · 28/06/2026

happy perfect day! [6 28] & to those who celebrate: happy tau day! [6 . 28 ... ] #iTeachMath ♾️ #MathSky 🧮 please enjoy also this photo from the 2026 Math in the Mountains for Teachers program, #MiTM4T

photo of antlered deer crossing midstream with trees then mountains in the background; from the Tetons in Wyoming

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benjamin dickman @benjamindickman.bsky.social · 19/06/2026

I did this in Summers 23, 24, 25. I even did a final presentation the last go-round! docs.google.com/presentation... All of this to say: This is a great program to participate in! For all levels & schedules. Click Justin's post below and learn a lil more and/or reshare it! #iTeachMath ♾️🧮 #MathSky

docs.google.com

21st Century Math [2025] Explorations from Fibonacci Nim

Explorations from Fibonacci Nim Ideas, Wonders, and Unresolved Problems Inspired by the 21st Century Mathematics 2025 Program Benjamin Dickman, Ph.D. || K-12 Mathematics Chair & Teacher Department of ...

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