John Golden
@johngolden.bsky.social
math, math x (x ϵ {equity, ed, teacher ed, games, art, comics, foolery}). mathhombre in other places.
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."
How will elem PSTs distinguish these pentagons? How would kids? #mathstoday
November 24, 2025 at 5:32 PM
How will elem PSTs distinguish these pentagons? How would kids? #mathstoday
Reposted by John Golden
In his HUMBLE PI book, @standupmaths.bsky.social writes about using this to your advantage. When the price is .x1 or .x2 (or .x6 or .x7) pay in cash to get the rounddown, and when it's not, pay with a card to avoid the roundup.
This will save you tens of dollars per year!
This will save you tens of dollars per year!
November 24, 2025 at 1:45 PM
In his HUMBLE PI book, @standupmaths.bsky.social writes about using this to your advantage. When the price is .x1 or .x2 (or .x6 or .x7) pay in cash to get the rounddown, and when it's not, pay with a card to avoid the roundup.
This will save you tens of dollars per year!
This will save you tens of dollars per year!
Reposted by John Golden
(continuation of intro) #iTeachMath
Now I teach for AOPS and I write.
I love teaching for AOPS. This semester I'm teaching algebra. artofproblemsolving.com
I'm writing a series of 4 YA novels, with math exploration at the center. I'm currently working on Althea and the Mysteries of Calculus.
Now I teach for AOPS and I write.
I love teaching for AOPS. This semester I'm teaching algebra. artofproblemsolving.com
I'm writing a series of 4 YA novels, with math exploration at the center. I'm currently working on Althea and the Mysteries of Calculus.
Art of Problem SolvingArt of Problem Solving (AoPS) | Advanced Online Math Classes
Online math classes, advanced math textbooks, math games, and more for high school and middle school students. Find out why our students win so many awards.
artofproblemsolving.com
November 24, 2025 at 2:20 AM
(continuation of intro) #iTeachMath
Now I teach for AOPS and I write.
I love teaching for AOPS. This semester I'm teaching algebra. artofproblemsolving.com
I'm writing a series of 4 YA novels, with math exploration at the center. I'm currently working on Althea and the Mysteries of Calculus.
Now I teach for AOPS and I write.
I love teaching for AOPS. This semester I'm teaching algebra. artofproblemsolving.com
I'm writing a series of 4 YA novels, with math exploration at the center. I'm currently working on Althea and the Mysteries of Calculus.
Latest from TX A&M academic freedom firing www.nytimes.com/2025/11/21/u... (NYT gift link) Chilling, stupid and wrong sentiment from the board of trustees
November 23, 2025 at 11:56 PM
Latest from TX A&M academic freedom firing www.nytimes.com/2025/11/21/u... (NYT gift link) Chilling, stupid and wrong sentiment from the board of trustees
Pat Bellew writing about the storied history of the infinite monkeys on typewriters. Galileo, Kepler, Swift and more! pballew.blogspot.com/2025/11/typi... #mathhistory
Typing Monkeys
More observations stimulated by John Barrows book, "One Hundred Essential Things You Didn't Know You Didn't Know." Everybody has he...
pballew.blogspot.com
November 23, 2025 at 11:48 PM
Pat Bellew writing about the storied history of the infinite monkeys on typewriters. Galileo, Kepler, Swift and more! pballew.blogspot.com/2025/11/typi... #mathhistory