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John Golden

@johngolden.bsky.social
1.4K followers 440 following 2.8K posts

math, math x (x ϵ {equity, ed, teacher ed, games, art, comics, foolery}). mathhombre in other places.

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John Golden @johngolden.bsky.social · 6h
#mathober day 4 linear recurrence... recent 8 part mini #mathstory/#mathcomic mathhombre.blogspot.com/2026/09/sum-...
mathhombre.blogspot.com
Sum Number Party
September 25th is National Math Storytelling Day. Sue Van Hattum will be hosting a story focused Playful Math Carnival for it.  That led me...
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John Golden @johngolden.bsky.social · 17h
For #mathober day 3 permutation, this got stuck in my head for some reason: circular visualization of a Hamiltonian cycle on the Cayley graph. Боже мой. www.tumblr.com/mathhombre/8...
tumblr.com
Post by @mathhombre · 2 images
💬 0  🔁 0  ❤️ 0 · Hamiltonian Path on the Cayley Graph The Cayley graph of S_4 on three generators <(12)(23)(34)> (From this paper on barcodes!) I couldn't find a cycle, which is why the last per…
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Reposted by John Golden
Katie Steckles @steckl.es · 03/10/2026
It's #mathober day 3, and the prompt is PERMUTATION. Here's a little zine I made about different kinds of permutations! PDF: katiesteckles.co.uk/mo3
Photos of the pages of a hand-drawn zine about different kinds of permutations
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John Golden @johngolden.bsky.social · 19h
Found a neat permutation group visualizer on #mathober day 3 permutation-groups.netlify.app/?group=S6
permutation-groups.netlify.app
Permutation Group Visualizer
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John Golden @johngolden.bsky.social · 02/10/2026
Some @geogebra.org for #mathober day 2: zebra graph. www.geogebra.org/m/rpent7wa Random walk, but inspired by the new to me zebra idea.
geogebra.org
Random Zebra Walk
Mathober play on Zebra Graph
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John Golden @johngolden.bsky.social · 02/10/2026
Season 4 of #TeachingLikeTedLasso is about Joy. Here we talk to long time teacher, director and communicator David Theune about educational travel, performance, and even grief www.youtube.com/watch?v=gHrC...
youtube.com
S3E2 Finding Joy with David Theune
YouTube video by Teaching Like Ted Lasso
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John Golden @johngolden.bsky.social · 01/10/2026
Fun arithmetic/coordinates/taxicub geometry #mathpuzzle from NRICH nrich.maths.org/problems/tre...
nrich.maths.org
Treasure Hunt | NRICH
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John Golden @johngolden.bsky.social · 01/10/2026
The #mathcomic to end all math comics, from @zachweinersmith.bsky.social www.smbc-comics.com/comic/equations
smbc-comics.com
Saturday Morning Breakfast Cereal - Equations
Saturday Morning Breakfast Cereal - Equations
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John Golden @johngolden.bsky.social · 01/10/2026
#fractions #mathcomic www.tumblr.com/talkingnumbe...
tumblr.com
Post by @talkingnumbers · 1 image
💬 0  🔁 0  ❤️ 0 · In This Corner
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John Golden @johngolden.bsky.social · 30/09/2026
#mathart quilt!
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Reposted by John Golden
Fractal Kitty @fractalkitty.com · 10/09/2026
Mathober prompts have been posted and mathober website updated www.fractalkitty.com/mathober-202... and mathober.com #mathober #mathober2026 #mathart
A list of days and prompts. In order: Perimeter of an Ellipse, Zebra Graph, Permutation List, Linear Recurrence, Inellipse, Connected Topology, Five Circles, Parabolic Rotation, K-Cyclic Graph, Simple Pole, Problem of Points, Reciprocal Prime Constant, Standard Map, Icositetragon, Irredundant, Isochronous Curve, Dimension Invariance, Biflecnodal Point, Orthic Triangle, Nice Vector Field, Prime Ring, Polylogarithm, Devil On Two Sticks, Multiperfect Number, Crossed Prism Graph, Unimodular Lattice, Indefinite Quadratic, Conic Double Point, Two Triangle Theorem, Spheroidal Wave Function, Existential Closure
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John Golden @johngolden.bsky.social · 30/09/2026
via @icecolbeveridge.mathstodon.xyz.ap.brid.gy and Katie Steckle, a new daily math game playtrace.co.uk
playtrace.co.uk
Trace — A Daily Recipe
A daily puzzle. Figure out the recipe of operations that turns one list into another.
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Reposted by John Golden
Hoodlum 🇺🇸 @nothoodlum.bsky.social · 29/09/2026
IMPORTANT: There are 15 states that require in-person registration 28–30 days before an election, meaning this maybe your last week to register. Check your registration at Vote.gov.
vote.gov
Register to vote in your state | Vote.gov
Find the information you need to make registration and voting easy. Official voter registration website of the United States government.
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John Golden @johngolden.bsky.social · 28/09/2026
#dataviz and immigration www.junkcharts.com/mirror-images/
junkcharts.com
Mirror images
Maintaining consistency in scales and axes
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John Golden @johngolden.bsky.social · 28/09/2026
#mathdance www.youtube.com/watch?v=4pTx... found on Donald's birthday. Oh, that I could send to Malke.
youtube.com
Applied Mathematics - Donald O'Connor Solo Tap and Acrobatic Dance
YouTube video by Deborah Bates
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John Golden @johngolden.bsky.social · 28/09/2026
Doing a @mathmedic.bsky.social #effl lesson with PSTs, polynomials and graphing.
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John Golden @johngolden.bsky.social · 27/09/2026
Love this #mathpuzzle from Early Family Math. Going to use with #fractions as "Using 1/6, 2/6, ... 5/6 can you make each circle sum to 1"
Puzzle: 3 adjacent overlapping circles create 5 regions. Fill in with 1, 2,...5 so each circle sums to the same number.
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John Golden @johngolden.bsky.social · 27/09/2026
#mathcomic #fractionchat Quarterback numbers are supposed to be 0-19, fullback 0-49... what range for thirdbacks?
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Reposted by John Golden
W. Ethan Duckworth @weduckworth.bsky.social · 27/09/2026
I've collected a few
drive.google.com
math jokes.pdf
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John Golden @johngolden.bsky.social · 26/09/2026
#mathart #howmany #arraychat www.tumblr.com/mathhombre/8...
tumblr.com
Reblog by @mathhombre · 2 images
💬 0  🔁 8  ❤️ 22 · Oskar Poss Two women at a pavement cafe Italy, 1955 Dimitris A. Harissiadis Syntagma Square Athens, 1956 2 & 3 also via @yama-bato
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John Golden @johngolden.bsky.social · 25/09/2026
Fun #playfulmath carnival from @suevanh.bsky.social in honor of #mathstory day: mathmamawrites.blogspot.com/2026/09/play...
mathmamawrites.blogspot.com
Playful Math Blog Carnival 186: Math Stories
… wherein I gather interesting math posts for your reading pleasure, especially those related to math storytelling.    September 25 (today!)...
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John Golden @johngolden.bsky.social · 23/09/2026
#mathcomic #cgi
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John Golden @johngolden.bsky.social · 23/09/2026
#mathcomic Separate question #cgi
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John Golden @johngolden.bsky.social · 23/09/2026
YAY! I couldn't be more excited than I was hearing that @dingleteach.blacksky.app is keynoting #MathinAction! Woo Hoo!
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John Golden @johngolden.bsky.social · 22/09/2026
My new #mtechat colleague Mai Bui is organizing a local MI @amtenews.bsky.social session in Grand Rapids MI on noticing and wondering. docs.google.com/forms/d/e/1F...
docs.google.com
Registration Form for Collaborative Workshop on Fostering Responsive Teaching Through Noticing and Productive Struggle
This one-day collaborative workshop, sponsored by MI-AMTE, aims to support teacher educators across Michigan in deepening their understanding of teacher noticing and productive struggle and exploring ...
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John Golden @johngolden.bsky.social · 22/09/2026
nice post from @zandrade.bsky.social about a life goal of mine, @triangleman.bsky.social's Math on a Stick. mathematicallyeducated.com/2026/09/20/m...
mathematicallyeducated.com
Math and the Minnesota State Fair - Mathematically Educated
I am excited that I had the opportunity to visit with Christopher Danielson in person and see the mathematical goodness that is Math-on-a-Stick at the Minnesota State Fair later this month. Math-on-a-...
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Reposted by John Golden
James Enge @jamesenge.bsky.social · 21/09/2026
Hey, Conan: if you missed the livestream of Jay Requard's interview of me, or if you just need something to watch/listen to while you're doing the dishes or confronting partly-rugose, partly-squamous avatars of eldritch horror, you can find it on YouTube here: @newedgeswordmag.bsky.social
youtube.com
The Phoenix & The Maker with James Enge
YouTube video by New Edge Sword and Sorcery
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John Golden @johngolden.bsky.social · 21/09/2026
in case you haven't celebrated yet today... www.youtube.com/watch?v=_hpU... #silly #EWF
youtube.com
9/21/19
YouTube video by Demi Adejuyigbe
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John Golden @johngolden.bsky.social · 21/09/2026
#mtechat a few of the discussion questions from preservice HS teachers discussing @geoffkrall.bsky.social’s Necessary Conditions. Big ideas, great talk.
Hierarchy to academic safety, quality tasks, effective facilitation?Helping students who’ve been excluded?How to instill confidence?Exploration &/vs retention?
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John Golden @johngolden.bsky.social · 21/09/2026
Our mighty li'l math conference in Feb 2027 now open for proposals. Please come and share! #miched #iteachmath www.gvsu.edu/mathinaction/
gvsu.edu
Math in Action
Math in Action 2027 conference at GVSU seeks presenters! Share math education insights.
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John Golden @johngolden.bsky.social · 20/09/2026
parallels and transversals in amazing home DIY video www.tumblr.com/mathhombre/8...
tumblr.com
Reblog by @mathhombre · 1 video
💬 5  🔁 652  ❤️ 1221 · Transversal and Parallels
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John Golden @johngolden.bsky.social · 19/09/2026
For the next @playfulmath @suevanh.bsky.social is looking for your #mathstory mathmamawrites.blogspot.com/2026/09/requ...
mathmamawrites.blogspot.com
Request for Submissions for Playful Math Carnival 186: Math Stories
Calling all math lovers. I'm hosting the fall edition of Playful Math Carnival 186. The theme is once again Math Stories.   Have you written...
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John Golden @johngolden.bsky.social · 18/09/2026
Need a pick me up? Check some kids' #mathart from a new searchable database of kids' work. www.tumblr.com/mathhombre/8...
tumblr.com
Post by @mathhombre · 14 images
💬 0  🔁 0  ❤️ 0 · Kids' Math Art · Somebody put together a great searchable database of kids' art and these are some of my favorites.
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John Golden @johngolden.bsky.social · 16/09/2026
Interesting new (to me) #mtechat resource from CMP cmp4problemhub.com
cmp4problemhub.com
CMP4 Problem Hub for Teacher Education
Free, field-tested CMP4 Problems and the teaching resources that help college students and faculty plan lessons, teach mathematics, and learn from classroom experiences.
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John Golden @johngolden.bsky.social · 16/09/2026
@jamesenge.bsky.social www.tumblr.com/alittleworld...
tumblr.com
Reblog by @alittleworldlywise
💬 238  🔁 21438  ❤️ 31320 · Alternate timeline in which all Greek and Latin roots are swapped: catastrophe -> contraverse cephalopod -> capitoped chlorophyll -> viridofolia democracy -> populimpery…
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Karen Campe @karencampe.bsky.social · 16/09/2026
I've been out of classroom long enough to not have experienced an LMS. But I'd say to student T, focus on components of good instruction: -teach using thinking tasks (not answer-getting) -check for understanding using formative assessment (make sure Ss show what they know, not self-report u/s) Etc
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John Golden @johngolden.bsky.social · 15/09/2026
#iteachmath one student teacher is wondering about how to better use LMS. Does anyone know of a teacher writing or speaking about that? #mtbos
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John Golden @johngolden.bsky.social · 15/09/2026
#iteachmath one student teacher is wondering about how to better use LMS. Does anyone know of a teacher writing or speaking about that? #mtbos
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John Golden @johngolden.bsky.social · 15/09/2026
My attempt at a complex arithmetic practice #mathgame bit.ly/complexcornh..., using a Desmos helper graph.
bit.ly
Complex Cornhole
Complex Cornhole A game for practicing complex number arithmetic. Version 0.8. CC 3.0 This page: https://bit.ly/complexcornhole John Golden, goldenj@gvsu.edu Set Up Two teams. Open up the Desmos grap...
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John Golden @johngolden.bsky.social · 15/09/2026
What we leave out of all those pizza #fraction diagrams www.tumblr.com/viralfrog/82... #mathjoke
tumblr.com
Post by @viralfrog · 1 video
💬 0  🔁 5  ❤️ 19
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John Golden @johngolden.bsky.social · 14/09/2026
#mathcomic More than one way to order fractions... www.tumblr.com/talkingnumbe...
tumblr.com
Reblog by @talkingnumbers · 1 image
💬 0  🔁 1  ❤️ 3 · Order in the Court · That one bailiff is very confident. But Judge Ochomayor isn't having it. Mathober 5: order
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John Golden @johngolden.bsky.social · 14/09/2026
An Exponent battle #mathgame of mine via @denisegaskins.com denisegaskins.com/2026/09/14/m... Different than my usual, this one got engagement from learners who were often hesitant.
denisegaskins.com
Math Game Monday: Power Up
This game gives students a fun reason to think about calculating with exponents. Many parents remember struggling to learn math. We hope to provide a better experience for our children. And one of …
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John Golden @johngolden.bsky.social · 14/09/2026
Very happy to get my copy. Knew it would be good from @denisegaskins.com but it is very cool. And a beautiful book.
Charlotte Mason’s Living Math by Denise Gaskins
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John Golden @johngolden.bsky.social · 14/09/2026
When you find a #tessellation you had totally forgotten you made www.geogebra.org/m/cvg56s4x ...
geogebra.org
Starfish and Shells
Playing Escher
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John Golden @johngolden.bsky.social · 13/09/2026
I backed this game mostly for the art, but the gameplay looks interesting, too. www.kickstarter.com/projects/dux...
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Reposted by John Golden
Terence Tao @teorth.bsky.social · 11/09/2026
A group of 25 Fields Medalists, including myself, have made a joint declaration on Math and AI: mathandai.org . We welcome additional signatories. See also this article in the Economist announcing the declaration: www.economist.com/science-and-...
mathandai.org
Declaration — Math and AI
Read the declaration and add your name.
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John Golden @johngolden.bsky.social · 11/09/2026
Nicky Case tries to make effect size intuitive. blog.ncase.me/on-depression/
blog.ncase.me
Vitamin D & Omega-3 may have a larger effect on depression than antidepressants
An accessible deep dive into the science (⏱️ 30 min read)
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David K Butler @davidkbutler.bsky.social · 09/09/2026
Bodyscale Prime Climb at #100factorial yesterday. We arranged the cards in an Ulam spiral first to see what that looked like with the coloured cards.
A rectangle of laminated A4 cards laid on the floor. Each card has a circle with a number in it and the circle is divided into some number of coloured sections. The nearest corner has 80 with four yellow sections and one blue section, then 81 with four green sections, then 82 in the corner with one yellow and one red section, then 83 on the next edge with one red section, then 84 with one blue, one purple and two yellow sections. To the side of 82 not part of the main rectangle is a black card labelled Start and 0. Six people stand on six of the cards, though you can only see their legs.The same set of Prime Climb cards from a distance and from above. Four people stand on the cards and one is walking across them. Another stands to the side watching. One more person stands on the other side holding a board with spinners. Some people are wearing coloured fabric sashes.
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Gregory (PhD) @thegreatsofmath.bsky.social · 09/09/2026
Greetings #iTeachMath folk ... I have a question ... What is your favorite non-textbook math teaching book (e.g., Math Therapy, Rough Draft Math) You know, something that's a good read, outlines good instructional ideas, and has a focus on (secondary) mathematics #mathematics #EduSky
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John Golden @johngolden.bsky.social · 09/09/2026
Cool bit of #mathhistory and mystery in @ryannorth.ca's Fantastic Four. www.tumblr.com/mathhombre/8... By cool, I mean I totally freaked out.
tumblr.com
Reblog by @mathhombre · 4 images
💬 0  🔁 5  ❤️ 7 · So in this month's Fantastic Four (online reading schedule), aliens invaded in the past and Mr. Fantastic and the Human Torch have to stop them. They travel back to 114 CE Gaul and…
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