John Golden
@johngolden.bsky.social
math, math x (x ϵ {equity, ed, teacher ed, games, art, comics, foolery}). mathhombre in other places.
The richest 130K Americans now own as much wealth as bottom 90%— 117 million — combined. The 3 richest Americans own as much as the entire bottom half of the population. The only other country w/ similarly high levels of wealth concentration is Russia. robertreich.substack.com/p/the-enshit...
The Enshittification of Everything (Part 2)
And how to disempower the oligarchy
robertreich.substack.com
Cool exposition of the progress on the Cohen-Lenstra conjecture, with neat Gauss connections. www.scientificamerican.com/article/math...
Mathematicians make a breakthrough on Gauss’s riddle, unsolved for 200 years
A solution to part of the Cohen-Lenstra conjecture helps resolve a long-standing mystery about quadratic forms
scientificamerican.com
@deltadc.bsky.social www.mcsweeneys.net/articles/an-... #tltl
An Open Letter to Ted Lasso with Some Gosh-Darn Hard Questions for the Upcoming Season
“I’m beyond grateful that you and the army of emotionally courageous people constructing you were willing to share that your father died by suicide. That big...
mcsweeneys.net
Made some EDC mobiles to go with a systems lesson. docs.google.com/document/d/1... + Graphs www.desmos.com/calculator/m...
More Mobiles-Systems
More Mobiles Puzzle1 What did you get? How did you solve it? What equations can we write? Puzzle2 What did you get? How did you solve it? What equations can we write? Puzzle3...
docs.google.com
Linear modeling activity from summer #algebra. docs.google.com/document/d/1... I demonstrated with number of signatures on a whiteboard with one practice signature to model.
Linear Modeling
Linear Modeling Goal: collect 5 data points for further analysis. Paper Clip Chain Put together 5 paper clips to practice. One person will have 50 seconds to connect as many clips as they can. 1 ob...
docs.google.com
Preparations are well underway for the Bridges #Mathart conference starting in Galway, Ireland, tomorrow. The #MathArt exhibition is being set up, and we'll have a set of wonderful talks and activities. As every year, I'll keep you posted! www.bridgesmathart.org/b2026/
Ted Lasso is back and so is Teaching Like Ted Lasso. Starting the season with the sage Francis Su @mathyawp.bsky.social @deltadc.bsky.social and I were wowed. www.youtube.com/watch?v=wUmS...
Defining Joy with Francis Su
YouTube video by Teaching Like Ted Lasso
youtube.com
New #mathgame idea. (Zeroeth draft) Can't believe this never occurred to me before. Word on the Street is my favorite group game. docs.google.com/document/d/1...
Pull My Digit
Pull My Digit Arithmetic Math Game inspired by Word on the Street Materials: 10 pawns, pennies, etc. set on the middle column, 4 dice. S Two teams are trying to pull the digits over to their side. Ro...
docs.google.com
I wrote a post about the embedded interactives on my site: www.fractalkitty.com/about-intera... #mtbos #indieWeb #mathLearning #iTeachMath #iteachStem #mathInquiry #p5js #svelte #d3js
About Interactives: Inquiries.link
I would like to start this post with a thank you to members of this site for making both this blog and inquiries.link more sustainable. I've been asked about some of the toys I've made for interactiv...
fractalkitty.com
I spent four weeks this summer at math camp with 11-14 year olds: two weeks at Camp Conway, and two weeks at MathPath. I taught algorithms (x2), dynamical systems, graph coloring, math of climate, and probability & Bayesian stats. Two posts about how it went: #ITeachMath
Summer 2026 Reflections: Camp Conway – Jessie Oehrlein
Doing fun math with 11-14 yos, part 1
jessoehrlein.github.io
Fun #mathhistory post www.openculture.com/2026/07/how-...
How a 13th-Century Monk Created a Prayer Manuscript by Writing Over—and Accidentally Preserving—Archimedes’ Groundbreaking Mathematical Works
In Jerusalem of the year 1229, there lived a Greek Orthodox monk named Johannes Myronas.
openculture.com
Made a zine handout with and without graphs. docs.google.com/document/d/1... Best instructions as always - @paulakrieg.bsky.social bookzoompa.wordpress.com/2009/11/30/h...
zine
docs.google.com
I love this one so much! May I suggest having a follow up conversation with these learners about how many holes the cup has? And then for those who say 1, where is it?
They were kind enough to send e some of these and I never wrote about them! (What a cad.) I 2nd Paula's sentiments - the precision in the shapes creates a lot of opportunity for noticing, discovering and making.
Paula Beardell Krieg@paulakrieg.bsky.social · 2w agoA blog post with elementary teachers in mind bookzoompa.wordpress.com/2026/07/27/p...
New #SlowRevealGraph How much has LeBron James made (in salary only) each season since 2023? What trends do you notice?
LeBron James’ Salary By Season (2003-2028)
LeBron James' Salary By Season (2003-2028)graph from Sportico/Lev Akabas; slow reveal by Jenna Laib Type of Graph: bar graph Purpose This slow reveal is designed to support analysis and discussion of both the data and the design choices. The questions in the slide deck invite learners to identify trends, estimate values, and compare values, as well as making connections to sports and what students know about the salaries of professional players.
slowrevealgraphs.com
I am going to do this as if I don’t know who these people are, based purely on the pictures. Top right: Only one not holding the microphone to their mouth. Bottom right: Only one in a hat. Bottom left: Only one wearing glasses. Top left: Only one with crowd visible.
Taylor Swift has not performed at the Super Bowl halftime show Bad Bunny was not born in the 1980s Kendrick Lamar has not won the Grammy Award for Album of the Year Beyoncé's debut album was not done as a solo artist
An intro to Desmos activity for summer #algebra docs.google.com/document/d/1... #iteachmath
Introduction to Desmos
Introduction to Desmos Part 1 Graph: https://www.desmos.com/calculator/3cm7iln4pt 0. What method to log in did you use? Which email? (Just to help you remember later.) What happens when you drag...
docs.google.com
A quick little blog post with some thoughts about what sometimes happens when you tell people to do a task a specific way: davidkbutler.xyz/2026/07/26/i...
I did it my way
It’s Second Semester Orientation at Adelaide University right now, and last week I helped out at a session called Starting Strong for new students. One part of that session got the students t…
davidkbutler.xyz
Latrenda Knighten, @nctm.org prez, on meet a mathematician! www.youtube.com/watch?v=CBd9...
MEET a Mathematician! - Latrenda Knighten
YouTube video by Meet a Mathematician
youtube.com
If you haven't seen #CountedOut (documentary about mathematics education), here's your chance - from the comfort of your own home! (Aug 8, 4pm) watch.eventive.org/countedout/p...
The rolling cart I’m using for my push-in Geometry class this year has got jokes.
Great game. Y scored 6 quickest in a row. New family terminology, dirty quirkle for 12+ the hard way.
So excited to share I found a way to keep visual patterns up for good—and it got a great new makeover too! Check it out: fawnnguyen.substack.com/p/visual-pat...
Visual Patterns, Rebuilt
Going on its third and final (yes!) version
fawnnguyen.substack.com
