5 Hundred Fabulous Activities for Your Math Circle
A Hundred Moebius Noodles
Farzanah and the 1700 Camels
One Hundred Funville Adventures
100 Socks Are Like 100 Pants, 100 Cats Are Like 100 Dogs
@maria-naturalmath.bsky.social
https://naturalmath.com A good world is possible with better mathematics. Let's make some together. #iTeachMath #MathEd #MathsEd #MathSky #MTBoS #PrimaryMaths
5 Hundred Fabulous Activities for Your Math Circle
A Hundred Moebius Noodles
Farzanah and the 1700 Camels
One Hundred Funville Adventures
100 Socks Are Like 100 Pants, 100 Cats Are Like 100 Dogs
"Radium Is Restoring HEALTH to Thousands"
05.12.2025 19:10 β π 0 π 0 π¬ 0 π 0Pretty sure the M.C. Escher prints hanging in the hallways near the math classrooms do more math outreach on our campus than any of the events we run.
05.12.2025 15:42 β π 11 π 1 π¬ 1 π 0I hope this is treated to your satisfaction and you feel better soon!
04.12.2025 17:47 β π 1 π 0 π¬ 0 π 0A giant net with dancers on it from Noli Timere at NCSU.
Awesome! This is like the structures our Dr. Sageman-Furnas is studying! I got to show him. live.arts.ncsu.edu/interweavefe...
04.12.2025 17:43 β π 0 π 0 π¬ 0 π 0The real treasure was the broader impact we made along the way! π
Seriously, fandom's where it's at. It's awesome to hear this story of deep connections. Kudos!
I was JUST thinking this is like action research that's so participant-initiated the *researcher* is the one who doesn't know it's happening ππππ
04.12.2025 17:30 β π 3 π 1 π¬ 1 π 0π‘Action research is exempt if it's a part of the normal work/study situation for all involved.
04.12.2025 17:26 β π 3 π 0 π¬ 1 π 0To clarify: I vaguely remember a part of GeoGebra being acquired ~5 years ago. As a user, I've had 0 reminders since then. My old stuff is where I left it; the old buttons and URLs haven't moved. TIL the buyer went bankrupt; did it affect GeoGebra tools and people, did the nonprofit take over, or..?
04.12.2025 11:05 β π 0 π 0 π¬ 0 π 0So who first introduced the river crossing problem? Or the Jeep Problem?
Why our good friend Alcuin of York. Have a listen to the final episode of #TheMathematiciansPodcast to find out more.
#mathstalk
#york
#mathsky
#riddles
mathematicians.podbean.com/e/episode-50...
Every time Something Like This (TM) happens, I appreciate @geogebra.org that much more. π€
03.12.2025 19:59 β π 5 π 0 π¬ 1 π 0Again, sounds fake but absolutely happened. Another world is possible, for sure, but we do have to model it & possibly even create it, or recreate it, and maybe also (I think) try to conjure it into being at tiny scale before working to build it out little by little into something larger & durable.
03.12.2025 14:25 β π 8 π 1 π¬ 1 π 0A story about "Arcadia" by Stoppard starting research on cancer and chaos theory in the 1990s.
In 1993, I was finishing my undergraduate research in chaos theory, "Bifurcation of Heart Polygons." It was a small example for a group project mapping out a zoo of dynamical systems. I still love the subject area and try to share its big ideas with children. #iTeachMath
03.12.2025 10:48 β π 6 π 0 π¬ 0 π 0I want more of this in my world.
01.12.2025 16:13 β π 3 π 0 π¬ 0 π 0Here is a sophisticated pattern-matching take on the force-sensitives in Star Wars: the films depict the reality as visualized by these characters in their minds. Something like the attached art piece (Joel Robinson), but significantly more elaborate. "Andor" plays with this a bit in-universe.
01.12.2025 02:12 β π 1 π 0 π¬ 0 π 0If you see this picture, stre-e-etch!
30.11.2025 12:21 β π 0 π 0 π¬ 0 π 0There are lots of reasons why I think higher ed would be a better, richer place if more people who had a history of academic struggle became professors. The way I deal with cheatingβand the tools I have for preventing, rather than punishing, itβare a big example.
29.11.2025 19:52 β π 106 π 10 π¬ 2 π 0"It's impossible to tell definitively if someone is using AI!"
βSomeone who has never contemplated the plagiarism-detection mechanism of, for instance, asking a student what a word they used in their paper means.
In case that was too obscure, a prominent part of the currently popular classroom management program called "Building Thinking Classrooms" is having students do their math in small groups on vertical whiteboards, with one marker per group, taking turns writing and talking.
29.11.2025 20:50 β π 1 π 0 π¬ 0 π 0Run an image search on "breakdown of social order": it returns mobs looting shops. Nope! Most of it breaks quietly. Then what? Have students stand in groups of 3, taking turns writing math solutions in toddler-size script line-by-line as they talk it through, or they lose every train of thought?
29.11.2025 16:28 β π 2 π 0 π¬ 1 π 0My hand holding a shortbread cookie in the shape of an airplane. There are red sprinkles in the pattern of the survivorship bias plane.
A plate of the same cookies.
Does anyone want a survivorship bias shortbread
29.11.2025 04:50 β π 15341 π 4160 π¬ 148 π 107When you see this, post an image from your gallery to describe your mental health.
27.11.2025 16:31 β π 22 π 2 π¬ 0 π 2Two students working on their Fibonacci sequence in front of a white board that says "peer" at the top.
I was trying to convince a couple of inspired elementary math circle students to go to other students for peer review of their (quite amazing!) work. "No, no, NO! YOU check it. You are a peer, right? We are doing math together!" What would you say to that? #iTeachMath #MathChat
27.11.2025 10:09 β π 2 π 0 π¬ 0 π 0Every child has a math story to tell. Let's inspire them! In the next two weeks, help spread the word about "Modultown!" to send this amazing Creative Commons book to more families and classrooms. >110% funded - THANK YOU! Reaching for the first stretch goal now. Tell a friend! #iTeachMath #MathSky
12.11.2025 16:24 β π 3 π 2 π¬ 0 π 2You can't just say that and not share the illustrated diagram!
26.11.2025 22:56 β π 0 π 0 π¬ 0 π 0There should be book clubs for babies. "I enjoyed the crinkliness of this one but I have to say the little mirror at the end was a bit predictable."
26.11.2025 17:40 β π 494 π 83 π¬ 19 π 8Sound monetary policy demands free lodging at the Hilbert Hotel. What economy could support an infinite amount of currency?
26.11.2025 00:18 β π 12 π 1 π¬ 2 π 0Every year around Thanksgiving, I see tons of grad students post heartbreaking messages on social media about how their loved ones donβt understand or support their decision to study what seems like something pointless or silly.
Perhaps my American Scientist essay can help!
π§ͺππ¦ #SciComm
They built the Library of Alexandria and decided the seer raving outside its gates was preferable so voluntarily burned it down
25.11.2025 13:49 β π 17 π 7 π¬ 1 π 0this is mesmerizing
25.11.2025 06:31 β π 4739 π 1775 π¬ 46 π 188