John Golden
@johngolden.bsky.social
math, math x (x ϵ {equity, ed, teacher ed, games, art, comics, foolery}). mathhombre in other places.
Reposted by John Golden
I love this meme so much 😭😭 why do intro analysis profs so often do a bad job explaining of how they got delta like this is our first time learning the material, it’s not engrained in us to start backwards, we don’t see the magic yet
December 9, 2025 at 1:07 PM
I love this meme so much 😭😭 why do intro analysis profs so often do a bad job explaining of how they got delta like this is our first time learning the material, it’s not engrained in us to start backwards, we don’t see the magic yet
Reposted by John Golden
I had a joke about Sophie Germain, but no one believed I wrote it.
I had a joke about Theseus, but I rewrote it too many times and it’s just not the same.
I had a joke about Parmenides, but it's the same as every other joke.
December 9, 2025 at 4:17 PM
I had a joke about Sophie Germain, but no one believed I wrote it.
Reposted by John Golden
Coming soon: 4th quarter #mathplay blog carnival? What have you made or shared? What have you been enjoying from somewhere else? Let me help get it out there!
December 6, 2025 at 2:44 PM
Coming soon: 4th quarter #mathplay blog carnival? What have you made or shared? What have you been enjoying from somewhere else? Let me help get it out there!
Our great little math conference, #mathinaction is open for registration. www.gvsu.edu/mathinaction/ Saturday, Feb 28. Lots of teachers sharing ideas and a few cookies.
Math in Action
Join us for Math in Action 2026 at GVSU's Allendale campus. Registration now open!
www.gvsu.edu
December 8, 2025 at 3:31 PM
Our great little math conference, #mathinaction is open for registration. www.gvsu.edu/mathinaction/ Saturday, Feb 28. Lots of teachers sharing ideas and a few cookies.
#mathread #mathpuzzle I always love David's live solves, but so charmed by this one on a student's puzzle.
The puzzle is to draw a line connecting dots to divide this shape into two congruent parts.
What do I notice?
First I'll describe what I see in the alt text.
What do I notice?
First I'll describe what I see in the alt text.
December 8, 2025 at 3:14 PM
#mathread #mathpuzzle I always love David's live solves, but so charmed by this one on a student's puzzle.
Nice interview with Greg Lakey, math teacher and coach. www.youtube.com/watch?v=16Qd...
MEET a Mathematician! - Greg Lakey
YouTube video by Meet a Mathematician
www.youtube.com
December 7, 2025 at 9:41 PM
Nice interview with Greg Lakey, math teacher and coach. www.youtube.com/watch?v=16Qd...
Great congruence #mathpuzzle from PST Brandon. Connect the dots to divide the shape into two congruent pieces. Solution if you ask for it!
December 7, 2025 at 7:34 PM
Great congruence #mathpuzzle from PST Brandon. Connect the dots to divide the shape into two congruent pieces. Solution if you ask for it!
Reposted by John Golden
I asked some math educators what their response is when someone says "I hate math" and here are their responses:
December 7, 2025 at 5:12 PM
I asked some math educators what their response is when someone says "I hate math" and here are their responses:
Some great problems! www.draustinmaths.com/_files/ugd/7...
New resources from recent Year 9 lessons added to the website today:
✨Pythagoras pile up puzzle
✨Multi-step trigonometry practice grid
Enjoyed making and working through these! (Hopefully I got the correct answers...)
#MathsToday #UKMathsChat
✨Pythagoras pile up puzzle
✨Multi-step trigonometry practice grid
Enjoyed making and working through these! (Hopefully I got the correct answers...)
#MathsToday #UKMathsChat
December 7, 2025 at 6:52 PM
Some great problems! www.draustinmaths.com/_files/ugd/7...
When your favorite theologian gets and approves of your advent card...
December 7, 2025 at 6:47 PM
When your favorite theologian gets and approves of your advent card...
Reposted by John Golden
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
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
December 6, 2025 at 4:17 PM
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
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
I was today year's old when I found out about John Whitney's cool 1960-70s computer animations. www.tumblr.com/mathhombre/8... #mathart
Reblog by @mathhombre · 2 videos
💬 2 🔁 836 ❤️ 1536 · Catalog
Matrix III
www.tumblr.com
December 6, 2025 at 2:46 PM
I was today year's old when I found out about John Whitney's cool 1960-70s computer animations. www.tumblr.com/mathhombre/8... #mathart
Coming soon: 4th quarter #mathplay blog carnival? What have you made or shared? What have you been enjoying from somewhere else? Let me help get it out there!
December 6, 2025 at 2:44 PM
Coming soon: 4th quarter #mathplay blog carnival? What have you made or shared? What have you been enjoying from somewhere else? Let me help get it out there!
Algebra Mazes, fun new #mathpuzzle from @danielscher.bsky.social www.sineofthetimes.org/introducing-... with a dynamic interface, of cource!
Introducing Algebra Mazes | Sine of the Times
www.sineofthetimes.org
November 30, 2025 at 10:01 PM
Algebra Mazes, fun new #mathpuzzle from @danielscher.bsky.social www.sineofthetimes.org/introducing-... with a dynamic interface, of cource!
Only 2 days left for Modultown on KickStarter! Get in on this fun #mathstory! www.kickstarter.com/projects/nat...
Modultown! A Math-Inspired Children's Book
Experience a whimsical puzzle hunt in a new fantastic world full of friendship and surprises, from the authors of Funville Adventures
www.kickstarter.com
November 30, 2025 at 2:14 AM
Only 2 days left for Modultown on KickStarter! Get in on this fun #mathstory! www.kickstarter.com/projects/nat...
Reposted by John Golden
Unexpected ratio:
blog.mathed.page/2013/10/30/u...
@johngolden.bsky.social
#mtbos #iteachmath #mathed
blog.mathed.page/2013/10/30/u...
@johngolden.bsky.social
#mtbos #iteachmath #mathed
Unexpected ratio
Triangle ABC is equilateral. MA/ME is the golden ratio! (George Hart showed me this result some time ago.)Vynce Montgomery pointed out that therefore, this could be a way to construct a pentagram. …
blog.mathed.page
November 29, 2025 at 11:08 PM
Unexpected ratio:
blog.mathed.page/2013/10/30/u...
@johngolden.bsky.social
#mtbos #iteachmath #mathed
blog.mathed.page/2013/10/30/u...
@johngolden.bsky.social
#mtbos #iteachmath #mathed
Reposted by John Golden
Having a bit of a sale over at inprnt, get this guy and others for 30% off, I think it only runs through today but I might keep mine running longer
www.inprnt.com/gallery/acid...
www.inprnt.com/gallery/acid...
November 28, 2025 at 6:48 PM
Having a bit of a sale over at inprnt, get this guy and others for 30% off, I think it only runs through today but I might keep mine running longer
www.inprnt.com/gallery/acid...
www.inprnt.com/gallery/acid...
Happy Thanksgiving, to all who celebrate. I am grateful for math teachers still trying to connect and share. And for the continuing, sane voice of the First Nations.
November 27, 2025 at 2:36 PM
Happy Thanksgiving, to all who celebrate. I am grateful for math teachers still trying to connect and share. And for the continuing, sane voice of the First Nations.
Also sucked in by this one. Could care less about Sydney, sorry, but nature vs nurture? Sign me up. today.yougov.com/health/artic... Really struck by how alike Dems and Reps are. This is culture.
November 26, 2025 at 2:04 PM
Also sucked in by this one. Could care less about Sydney, sorry, but nature vs nurture? Sign me up. today.yougov.com/health/artic... Really struck by how alike Dems and Reps are. This is culture.
Reposted by John Golden
hahaha I already have some UFO slow reveals...
slowrevealgraphs.com/2022/01/02/i...
I like this one, because it shows that maybe there are some alternate explanations.
slowrevealgraphs.com/2022/01/02/i...
I like this one, because it shows that maybe there are some alternate explanations.
In America, UFO Sightings Peak on July 4th - Slow Reveal Graphs
When do Americans report sighting UFOs? Are there are patterns? Click to access the slide deck, and learn more about math & content connections.
slowrevealgraphs.com
November 26, 2025 at 1:54 PM
hahaha I already have some UFO slow reveals...
slowrevealgraphs.com/2022/01/02/i...
I like this one, because it shows that maybe there are some alternate explanations.
slowrevealgraphs.com/2022/01/02/i...
I like this one, because it shows that maybe there are some alternate explanations.
I'd suggest a #slowrevealgraph but I don't know if I want kids to know how crazy we are. today.yougov.com/health/artic... No offense meant to believers! #dataviz
Half of Americans believe aliens have visited Earth | YouGov
Many believe that aliens would bring new diseases and unintentional harm or outright hostility to people if we were to encounter them.
today.yougov.com
November 26, 2025 at 1:51 PM
I'd suggest a #slowrevealgraph but I don't know if I want kids to know how crazy we are. today.yougov.com/health/artic... No offense meant to believers! #dataviz
Updated the puzzle with @hpicciotto.bsky.social's suggestions. Added a few of my own arrangements. What can you make?
www.tumblr.com/mathhombre/8...
www.tumblr.com/mathhombre/8...
November 26, 2025 at 1:43 PM
Updated the puzzle with @hpicciotto.bsky.social's suggestions. Added a few of my own arrangements. What can you make?
www.tumblr.com/mathhombre/8...
www.tumblr.com/mathhombre/8...
Love this congruence puzzle from @fawnnguyen.substack.com drive.google.com/file/d/13j_J... have used many times. Cody (if you're sending to Fawn use my name, dude) saw something new... #mathstoday
November 24, 2025 at 5:40 PM
Love this congruence puzzle from @fawnnguyen.substack.com drive.google.com/file/d/13j_J... have used many times. Cody (if you're sending to Fawn use my name, dude) saw something new... #mathstoday
Reposted by John Golden
"Many schools across the country have shifted toward making math engaging for students at the expense of evidence-based teaching practices."
a woman in a blue and white dress is making a face and saying `` oh yea for sure '' .
Alt: Jennifer Lawrence sarcastically saying "Oh yeah. For sure."
media.tenor.com
November 24, 2025 at 5:37 PM
"Many schools across the country have shifted toward making math engaging for students at the expense of evidence-based teaching practices."