Sign in

Jed

@jedediyah.com
921 followers 921 following 745 posts

Teacher ◦ Robots and mathy science ◦ He/Him #ITeachMath #ITeachPhysics #TeamCompSci #mtbos #PAEMST jedediyah.github.io

PostsRepliesMedia
Reposted by Jed
ponder @ponder.ooo · 25/09/2026
one of the most beautiful formula in all of mathematics... combining so many of the most important constants... e, pi, -1, i, and 0.04321391826377224977441773717172801127...
(-1)^i = e^{-pi} ~= 0.04321391826377224977441773717172801127...
35213
Jed @jedediyah.com · 20/09/2026
The Doink It: A wonderful analogy for how "AI" is being sold in education. Don't build something people want, *tell* them what they want and make them feel bad if they express what they actually want. "As far as I'm concerned, the quality of the toy shouldn't matter when you're selling to kids."
youtube.com
Nathan For You - Toy Company
YouTube video by Comedy Central
012
Jed @jedediyah.com · 15/09/2026
I lost it when Enron popped up
020
Reposted by Jed
spooky sylvie 🦇 @luvcore.bsky.social · 08/09/2026
when you bake chocolate chip cookies and you pull them out of the oven and the edges are golden brown but the rest of the cookie is still pale brown and they're very soft and you think "i should cook these for another couple of minutes" DO NOT DO IT. THAT IS THE DEVIL SPEAKING. TAKE THEM OUT NOW.
962836343
Reposted by Jed
Amanda Austin @draustinmaths.com · 02/09/2026
It's back to school this week for many, so this is your annual reminder about draustinmaths.com. There are now over 1200 free maths resources, including over 100 resources for A-level Maths and Further Maths. And when you've exhausted all of those, there are a few paid-for resources too!
draustinmaths.com
Maths Teaching Resources | Dr Austin Maths
Dr Austin Maths is a free-to-use Maths teaching resources website, focussing on quality resources for KS4 IGCSE and GCSE Maths.
34118
Jed @jedediyah.com · 01/09/2026
... don't forget AI, they know jack shit about AI.
010
Jed @jedediyah.com · 27/08/2026
Definitely @oscarlevin.com's book, which I have used in my data science course. I have the 3rd edition which I am partial to (discrete.openmathbooks.org/dmoi3.html). Are there any particular topics? I think that there tend to be good texts on discrete topics with plenty of good exercises.
Short stack of books: 
Combinatorics, by Daniel A. Marcus
Cryptological Mathematics, by Robert Lewand
Graphs and Applications: An Introductory Approach, by Aldous and Wilson
Combinatorics and Graph Theory, by Harris, Hirst, and Mossinghoff
Discrete Mathematics, by Oscar Levin
140
Jed @jedediyah.com · 26/08/2026
3. Promoting teachers going through this inefficient process argues for us doing unpaid labor for companies to improve their non-products. If a company has a good tool, good. It should not be the job of teachers to deal with tech garbage while doing the labor to improve it (and paying for it).
020
Jed @jedediyah.com · 26/08/2026
2. These lessons aren't "crafted" by chatbots, it is the work of the teacher who would "have to sift through some subpar tasks like this one before finding one worthwhile" iterating on an inefficient process that involves reading and re-reading, assessing and editing, validating, and doing it again
100
Jed @jedediyah.com · 26/08/2026
What stood out to me as conspicuously missing were failing to acknowledge three things in particular: 1. Teachers having to do this level of lesson planning is wild, and this should be much less labor-intensive (or unnecessary) if teachers have sufficient curriculum resources.
100
Jed @jedediyah.com · 26/08/2026
I appreciate the authors not over-anthropomorphizing chatbots, although there were multiple times where they referred to a chatbot making assumptions or choices. I would avoid describing text-generation this way since, at times, it seemed to imply a level of metacognition the software does not have.
100
Jed @jedediyah.com · 26/08/2026
Was the highlighted text on page 2 a pull quote? Because I'm not seeing where the authors wrote this sentence, and it sounded like the authors concluded that K-12 teachers *cannot* reliably prompt ChatGPT to create more ambitious, student-centered mathematics lessons...
100
Jed @jedediyah.com · 26/08/2026
A more appropriate title would have been "Don't Lesson Plan With AI", considering the authors describe the results in the introduction as "less than inspiring" and conclude that "we do not think AI is ready to be used in this way" after pointing out several unresolved issues. #ITeachmath #MTBOS
120
Jed @jedediyah.com · 26/08/2026
I was happy to see an honest review of lesson planning with "AI" in the cover article from this MTLT. I was thrown by the somewhat contradictory presentation in the journal. Maybe the partially completed progress bar is intended to imply that we are not there yet, despite the directive title.
Cover of Mathematics Teacher: Learning and Teaching PK 12. Cover photo contains a Gemini-inspired border around "Lesson Plan With AI", under which there is a progress part that is partially completed.
110
Reposted by Jed
Karen Campe @karencampe.bsky.social · 25/08/2026
New blog post! "Starting Strong: Putting Mathematical Thinking First" in math class this school year. #MTBoS #iTeachMath #T3Learns #MathsToday karendcampe.wordpress.com/2026/08/25/s...
karendcampe.wordpress.com
Starting Strong
Putting Mathematical Thinking First It’s that back-to-school time, and my thoughts turn to how we might start the year in the strongest way to have a successful journey with our students. I&#…
1115
Jed @jedediyah.com · 25/08/2026
Absolutely nothing about this is surprising. Maybe that we're letting it happen, but I don't even know if that is surprising... If these tech products did not exist but someone described them accurately, there's no way one should think "let's get this into schools".
100
Jed @jedediyah.com · 10/08/2026
"The Story is Systems, Not Ideas" "What’s more true is that the daily conditions of teaching pull towards meh-ness." "a story that people need to know—that in education, ideas of any sort won’t get you far. What matters is how it’s done."
021
Reposted by Jed
Joshua Grochow @joshuagrochow.bsky.social · 09/08/2026
"The "output" [of human math research] is not just a paper, but the changes that happened in the brain along the way. The "output" is a person who understands something better, and can take that understanding forward in their research and their teaching." -Jonny Evans jde27.uk/llms.html #🧮 🧪 #AI
jde27.uk
Jonny Evans's Homepage
Homepage of the Lancaster-based mathematician Jonny Evans
26318
Reposted by Jed
Jane Rosenzweig @janerosenzweig.bsky.social · 05/08/2026
Trying out the features in Claude for education. Join me as I see how it "helps" me write a research paper. My chosen topic: "AI and education". /1
workspace where you can tell Claude what you are writing about. Screenshot shows that user is writng a  paper about "AI and Education"
313365
Jed @jedediyah.com · 05/08/2026
In the new 2026 CSTA standards, each includes a "Students are not expected to" to help understand what the standard is not. So, what are students not expected to "understand", "apply" or "build"? "math" appears in 31 of the standards! In 27 of those, it appears after "Students are not expected to"
011
Reposted by Jed
Jed @jedediyah.com · 27/06/2025
Guess the year! There are some hints in there. "We must teach people not to think of technology as an authority figure. Without mathematical understanding people of the twenty-first century will be victims of computer mysticism". Bruh, math educators failed so hard at this... 😭
Some have suggested that because we have computers and calculators, people no longer need basic skills. Others say that we need all the skills we ever needed and computers can be used to teach those skills. Still others believe that technology must be withheld from students so they will learn the important basic skills. I believe that advanced technology requires us to know more and different mathematics. Computers can arrive at completely fallacious results if improper assumptions are used
in programming them. Insurance agents, car dealers, banks, and others have been known to use specially programmed computers to beguile customers. 
Computers and even calculators can produce mathematical nonsense at a much faster rate than people have ever been able to do in the past.
Educated people must understand sufficient mathematics to be able to
recognize absurd mathematical statements and understand that mathematical statements generated by computer are no more likely to be valid than those coming from a human being. We must teach people not to think of technology as an authority figure. Without mathematical understanding people of the twenty-first century will be victims of computer mysticism.
121
Reposted by Jed
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.
161
Reposted by Jed
Karen Campe @karencampe.bsky.social · 02/08/2026
The #ProblemSolving Calendar is back! (sort of). Check out the August Palette of Problems to set the stage in math class this school year. #MTBoS #iTeachMath #T3Learns #RecreationalMath #MathSky #MathsToday karendcampe.wordpress.com/2026/08/02/a...
karendcampe.wordpress.com
August Calendar Problems
How is it possible that it’s August already? I’m sure that summer days pass faster than winter days, even though there’s more daylight! Many teacher friends are heading back to sc…
182
Jed @jedediyah.com · 30/07/2026
Do archives of the "Math Times Journal" exist @mctm-mn.bsky.social? Particularly looking for this reference from the 1989 NCTM standards: Day, R. P., and R. Scott. "For problem solving: consider using a spreadsheet." Math Times Journal 1, no. 2 (1987): 20-28 CC: @saravanderwerf.bsky.social
110
Reposted by Jed
PBS News Classroom @pbsnewsclassroom.bsky.social · 14/07/2026
ATTENTION EDUCATORS! Interested in invention education? Interested in civics? Join us on Thursday, July 23rd from 1-2 PM for a discussion on ways invention and civic engagement can go hand-in-hand. Featuring Doug Scott and Leigh Estabrooks! #invented RSVP: bit.ly/PBSInventionCivics7_23
041
Reposted by Jed
Michael Pershan @mpershan.bsky.social · 07/07/2026
I wrote about how @hpicciotto.bsky.social makes such wonderful (and useful) mathematical activities. substack.com/home/post/p-...
substack.com
How Henri Picciotto Designs Great Lessons
Learning from one of the best to ever do it.
31912
Jed @jedediyah.com · 05/07/2026
I wish I had captured a screen shot of the alert I got in Cambridge. It said the same thing as yours did but started with something like: Alert! Threat Level EXTREME In red lettering...
010
Reposted by Jed
ElizabethwithaZ @elizabethwithaz.bsky.social · 03/07/2026
We're putting together a toolkit for teachers who want resources for a more techno-skeptical critical AI literacy. If any K12 educators are willing to share their thoughts on this topic, we'd love to hear from them. Thanks! criticalaitoolkit.org/survey/ #edusky
criticalaitoolkit.org
Educator Survey – Critical AI Toolkit
177
Reposted by Jed
Justin Lanier @jlanier.bsky.social · 19/06/2026
Hi! In July I'm once again running a free online program for K-12 math teachers called "21st century mathematics". Its goal is to help teachers to connect math they teach with some math that has been discovered in the 21st century. Pass it along! Info+register: justinlanier.org/21st-century...
A 4x4 puzzle grid, indicating an example of an alternating sign matrix; an example of a configuration of 21 points that maximized the number of pairs that are a unit distance apart. These are the two mathematical themes of the 2026 program.
22620
Jed @jedediyah.com · 12/06/2026
So many things! 1. There are 9-12 teachers doing this work 👋 2. A lot of modernizing involves what was laid out in the 80s and 90s. That is, relevant math and numerical computing platforms were highlighted & introduced then. 3. Chatbots are unrelated to modernizing mathematics education.
141
Jed @jedediyah.com · 12/06/2026
Based on the given examples of cars and Amazon, not anything good.
020
Reposted by Jed
Kurbs @kkurbs.bsky.social · 10/06/2026
Please Use AI
PLEASE USE AI
Shawn Smucker
Be sure to use Al when making your next, I don't know, meal plan, for example. Definitely do not call your friend who loves to cook and ask her for her favorite recipes or tips or ways to save time making meals, because you will end
up talking for longer than you had hoped, hearing, perhaps, about her father's cancer diagnosis or how lonely she's been or even what she's planted in her spring garden and then lost with the early frost.
77181416119
Jed @jedediyah.com · 03/06/2026
My course this year was largely that! williams-bhs.github.io Let me know if I can elaborate on anything there! 🙂
williams-bhs.github.io
Computing and Data Science
020
Jed @jedediyah.com · 02/06/2026
Oof. So what would 11/12 CS curriculum include if it were just up to you?
100
Jed @jedediyah.com · 01/06/2026
FYI, this big number is the product of two primes. I wonder which two primes!
000
Jed @jedediyah.com · 01/06/2026
25400496152197968726069309778268949288246846207825351781412320795364369009011394253863307907325504274886438651152265338552397690369938370774031355003154660318291
110
Jed @jedediyah.com · 01/06/2026
It struck me is that we have talked about Galton, Fisher, Pearson --> Hitler, Watson (IBM), WW2 --> Turing and Enigma, Turing and AI --> IBM and Watson (computer) --> current tech bros & TESCREAL. Tech history is so instructive and insightful. History offers so much benefit to technical curricula.
210
Jed @jedediyah.com · 01/06/2026
In #MathsToday we talked about cryptography. First, how cryptographic systems don't matter if you just share your data (there are many examples). Then rot, substitution, one-time pads, Vigenère, Enigma, and finally public-key. #mtbos #ITeachMath
110
Jed @jedediyah.com · 20/05/2026
"They're trying to do the thing in a way which is so general, that they can't possibly build on that. If they build on that they're building on top of confusion and vagueness." -- Bill Evans Wonderful description of how important it is to take your time when learning and build a good foundation.
youtu.be
Universal Mind of Bill Evans (1966 Documentary)
YouTube video by BillEvansArchive
010
Jed @jedediyah.com · 18/05/2026
Excited to be named a CSTA Responsible AI Fellow.
050
Jed @jedediyah.com · 03/05/2026
The first language I worked in was TI-BASIC in the 1990s because I somehow stumbled into it on my calculator. I really enjoyed writing programs to do check my homework!
000
Jed @jedediyah.com · 03/05/2026
This month marks the 20th anniversary of my entering the classroom as a teacher! I was just going through a folder from my first Computer Science course (2009) and am not surprised by myself. Class #1 was "Ethics" #TeamCompSci #ITeachCS #CompSci
Spreadhseet with columns Unit, Class #, Topic(s).
Under Topic(s), the first three classes are "The Course", "Ethics", "Hardware"
4130
Reposted by Jed
Karen Campe @karencampe.bsky.social · 30/04/2026
Here are some of my favorite #ProblemSolving questions from the April Calendar... April 9: decimal expansion of 1/17 April 14: square roots of square roots (Check out Really Radical post for more!) April 28: shortest path in a circle and square #iTeachMath karendcampe.wordpress.com/2026/04/22/r...
April 9: In the decimal expansion of 1/17, what digit is in the 1996th place?April 14: If the square root of the square root of the square root of a number is 2, what is the number?April 28: Give Circle E inscribed in square WXYZ. Midpoints of the sides of the square are A, B, C, and D.
Area of circle = (625 pi)/64
Al starts at point A, travels to points B, C, and D and then back to A by the shortest possible path. How far does he walk?
011
Jed @jedediyah.com · 30/04/2026
I never met Dr. Nancy C. Dunigan, but I have a copy of the 1981 NCTM Yearbook that once belonged to her. I occasionally get a used math book and can find information about the previous owner. She sounds like a real swell lady and dedicated educator. www.dignitymemorial.com/obituaries/l...
Teaching Statistics and Probability
National Council of Teachers of Mathematics
1981 YearbookTable of Contents. Stamp across top of page reads "Property of Nancy C. Dunigan"
030
Jed @jedediyah.com · 29/04/2026
It looks like there are some amazing presentations from teachers in the program for #NCTMDen26. I'll be presenting on the importance of computing in mathematics and how basic familiarity with a numerical computing platform can open up new worlds of beautiful mathematics. #ITeachMath #mtbos
The Missing Strand
Reviving NCTM's Vision for computing in Mathematics Education
040
Reposted by Jed
Charles Logan @charleswlogan.bsky.social · 19/04/2026
I really appreciate @elizabethwithaz.bsky.social's reflections on how she explored the social impacts of technology with her students by introducing them to the people - the ghost workers - whose labor makes “AI” systems possible. Read this week’s @civicsoftech.bsky.social and find the lesson at:
civicsoftechnology.org
Introducing Middle School Students to "The Secret Ghost Workers of 'Artificial Intelligence'" — Civics of Technology
Upcoming Book Clubs: We’re reading The Digital Delusion: How Classroom Technology Harms our Kids’ Learning - And How to Help Them Thrive Again by Jared Cooney Horvath. Join us on Wednesday, Ap...
28944
Jed @jedediyah.com · 20/04/2026
!!!
010
Reposted by Jed
Civics of Technology @civicsoftech.bsky.social · 19/04/2026
What does it look like to critically examine AI in the middle school Computer Science classroom? www.civicsoftechnology.org/blog/introdu...
civicsoftechnology.org
Introducing Middle School Students to "The Secret Ghost Workers of 'Artificial Intelligence'" — Civics of Technology
Upcoming Book Clubs: We’re reading The Digital Delusion: How Classroom Technology Harms our Kids’ Learning - And How to Help Them Thrive Again by Jared Cooney Horvath. Join us on Wednesday, Ap...
055
Reposted by Jed
DrSinBin @drsinbin.bsky.social · 19/04/2026
I'm not joking when I say mRNA technology is more important than "AI" and it's a tragedy we're throwing billions into one while our government is aggressively defunding the other.
116150755539
Jed @jedediyah.com · 18/04/2026
Back in my day, I was told not to continue in education because math teachers would go extinct thanks to "machine learning" (~2009) 🤷 Also apparently teachers were supposed to have transitioned to "prompt engineers" by 2023?
020