Trying to teach the connections between the cosine and arccosine graphs. How's this for an idea? Give them a square sheet, fold at a diagonal. Draw the cosine graph on one side, flip the paper along the y=x line and then use ink bleed through to "see" arccosine (I'm sure it's been done already)

teaching like Ted Lasso is BACK! Talking to actual athletes on teaching/sports/Ted Lasso connections. Thanks so much to Jen and Morgan. www.youtube.com/watch?v=3SxK... #tltl @deltadc.bsky.social hasn't lost a step.

Spotify Wrapped highlights(?): 49 days of music played Listening age: 74 Top percent Swiftie.

This Cyber Monday, I’m knocking 40% off my usual rate for helping students. Maybe I should spam out an email to let them know of this amazing deal.

Yikes I wrote about education policy. pershmail.substack.com/p/i-dont-kno...

Look, if you wanted fast but wrong answers, I know a guy.

40 years ago today the world was introduced to a small boy and his best friend. Happy birthday Calvin & Hobbes.

tick tock, think you can make something similar?

@mrsvibbermath.bsky.social Great Talk! Loved it and will share with some colleagues.

Dude, party for Heat Pump Water Heater Day is going to be off_the_hook today.

Oh no. They've hidden the insert equation in google docs... I could maybe forgive them if there was a keyboard shortcut.... (yikes, found it for windows: alt-i then y then e)

Jill shares her strategies for strengthening peer relationships in her classroom: https://edut.to/3KQk8ET #EduSky

Nerdiest plate I’ve seen in a long while. Love it.

Whoa, check this youtube channel out. Sara and Sean (Sweeney) are live making a very cool sketch. Miss on the intro music though. Big Sarah and Duck fans would want: Sara and Sean (QUACK).

“Your audience for your code comments is a concussed version of yourself who knows how to code but doesn’t know what this code is supposed to do, especially tricky parts.”

tho i see many anti-AI views among mathematicians and math educators, i hope that this growing list of AI uses in maths can be of some interest: seewoo5.github.io/awesome-ai-f... [found via MO Q500720 from T Tao] i was certainly surprised to see the GPT use downthread here! bsky.app/profile/benj...

Fairground rides at night, by Roger Vail. origin.www.josephbellows.com/artists/roge...

Never saw a graphical description of the difference of squares factorization so I made one. I don't know why.

Fun logic puzzle game called Clues by Sam. “Your goal is to figure out who is criminal and who is innocent.” [cluesbysam.com]

"Replace your x's with negative x's; if it stays the same then you have even symmetry" sounds like a Taylor Swift song.

I have saved Desmos graphs older than you! #TeacherMilestones

I don’t remember what the Wongs had to say but maybe the most important thing to do on the first day of school is to set a vibe (as the kids say). Who is this weird adult that I’ll be struck with for the rest of the year? Is this a place of intellectual safety and hence exploration?

My 22nd first day of school (as a teacher)!

White House (hence NSF) has also defunded PAEMST program. Lovely.

Only a week left before school kicks off again. Anyone got hacks for slowing down time?

Michael hits it out of the park. Must read. frfr

Interesting frequency and amplitude differences between these two birds.

Attention Math Teachers! IVT and the Wobbly table theorem. youtu.be/47YbLU7-J1M?...

Reflections for parabolas and catenaries: #iTeachMath #MTBoS www.desmos.com/calculator/q...

Hey Geometry teachers! Check this out making parabolic solar collectors, and then more useful “compound solar collector”. Can you follow along with the geometric construction? youtu.be/8zlAI32MSsQ?...

A Song of Ice and Fire f(z)=e^(zct)*sin(zt) #fractal #newtonfractal #creativecoding

Are they using a different definition of “Spring”??? February?

I will also submit this as a great example of #mathart Here we have 8 solutions to the Apollonius problem. Given any 3 circles, draw a fourth that is at a tangent to each. #mathsky

💯. Especially love the message in the beginning suggesting going “off script” for the 14 practices. Here’s my favorite four of the fourteen:

Dear #mathsky, if you repost this, it will let people see the article for free. Thanks! www.nytimes.com/interactive/...

A reminder that LLMs are fundamentally the wrong class of model for many applications. Often, a better choice is a simple database, an FAQ, or just good notes. If you want interactive personalized learning, good luck to you... just don't use an LLM as a computation engine.

Last day with precalc. Yearbook signatures, puzzles, math games from Ben Orlin, and fractal tiles portraits of me.

Hey everyone, nbd, but I've been exclusively invited by NCTM. Bet you're jealous.

I was devastated to not find any of Vi Hart's videos on youtube. I'm sure because of harassment, what a terrible place youtube can be. BUT found their Vimeo channel: vimeo.com/vihart Phew. BTW, share these videos with your students, they haven't seen any of them and they are truly wonderful.

Here's an interactive version. If you copy and paste this code into a processing environment, it'll render a 8000x8000 png when you click... openprocessing.org/sketch/2668514 bsky.app/profile/dand...

Cybernetics and Ghosts As Italo Calvino wrote: "The more our houses are illuminated and prosperous, the more their walls drip with ghosts". Generative AI and its phantoms, both predicted by Calvino in 1967. Made with #python #numpy #matplotlib #numba

Here's a 1000 frames of the constants from one of these morphing to the constants of another... bsky.app/profile/dand...

Playing with some recursive chaos from @sconradi.bsky.social Randomized the two constants and rendered. Only the images with large file sizes were interesting, so toss the rest! bsky.app/profile/scon...

I’d bet that Yoda was an HP graphing calculator user back in the day. 2 2 + => 4

I'm concerned that chatGPT is spitting out incorrect information. Who can I sue?

Because of AI, is homework dead? For most math classes? (there is discussion of this on Mr Barton's most recent podcast www.mrbartonmaths.com/blog?ppplaye...)

🌌 Mesmerizing patterns emerge from simple equations in my Orbits series! These flowing trajectories dance between chaos and order, revealing the hidden beauty in dynamical systems. Made with #python #numpy #matplotlib #numba✨ #MathArt

I love chaos. Made with #python #numba #numpy #matplotlib