iiinova — where your digital self keeps evolving

Estes, John @johnestesmath.bsky.social · 15/04/2026

Tait thought all 3-conn 3-regular planar graphs were Hamiltonian, which would have proven the Four Color Theorem. Tutte provided a counterexample.

Tutte’s counterexample to Tait’s conjecture

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Estes, John @johnestesmath.bsky.social · 05/02/2026

After MS passed a law that required age verification on social media platforms, Bluesky was blocked in the state for close to a year. I guess age verification is on this app now, so… what have yall been up to?

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Estes, John @johnestesmath.bsky.social · 08/05/2025

I'm in shock... What are we doing?

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ML Brennan @brennanml.bsky.social · 21/03/2025

Okay, this is my newest very very favorite meme.

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SEIU_ORG @seiu.org · 22/03/2025

New data from @immcouncil.org proves it: Immigrants fuel the economy, paying $651.9 BILLION in taxes and $1.7 TRILLION in spending power! Check out the data in your state with this interactive tool: data.americanimmigrationcouncil.org/map-the-impa...

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John Skiles Skinner @skiles.blue · 21/03/2025

I helped build a government AI system. DOGE fired me, rolled the AI out to the whole agency, and implied the AI can do my job and the jobs of the others they've fired. It can't. But, what DOGE accidentally revealed about themselves in the process is fascinating. 🧵

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Estes, John @johnestesmath.bsky.social · 18/03/2025

Senor Chang's office from Community.

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Estes, John @johnestesmath.bsky.social · 17/03/2025

"I'm sorry we went a couple of minutes over today, but some of you come in 5-10 minutes late, so I feel like you owe me." Is that too aggressive?

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David Ho @davidho.bsky.social · 01/03/2025

All websites that depend on NOAA data should display something like this. earth.nullschool.net

Weather and climate data shown on this website and countless others are at risk.

The National Oceanic and Atmospheric Administration (NOAA) is the U.S. agency responsible for global weather forecasting, hurricane prediction, ocean observation, and many other services vital to public safety. Its satellites, supercomputers, and research teams provide essential data that help us understand our planet and protect lives.

On February 27, the new U.S. administration initiated mass firings at NOAA. These actions are unethical and deeply disruptive to the talented scientists and engineers who dedicate themselves to the public good. The firings, along with expected budget cuts, have serious implications for the availability and quality of weather forecasts produced by the United States. They must be reversed immediately.

Much of the data on this website is downloaded directly from NOAA's servers. In this environment of uncertainty, access could be disrupted at any time. While I'll strive to keep all features on this website functional and switch to alternative data sources if necessary, some datasets have no substitute if they go offline.

If this concerns you, speak up. Share on social media. And if you're in the U.S., contact your representatives.

- Cameron

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Estes, John @johnestesmath.bsky.social · 18/02/2025

I'm sorry to hear this. What a disaster we are.

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Estes, John @johnestesmath.bsky.social · 07/02/2025

We're using Canva, and I just found that there's a Latex app that I can use to generate expressions.

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RedditCFB @redditcfb.com · 07/02/2025

The Conference USA schedule is very elegantly done. Here is a graph of the teams that *don't* play each other this year. With this setup, it's impossible for more than 2 teams to go undefeated, and 8-0 team in conference is guaranteed to make the conference championship.

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Estes, John @johnestesmath.bsky.social · 07/02/2025

When including titles/abstracts in a conference program, is it okay to have LaTeX snippets? For example, "Proving \sqrt{2} is irrational".

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Dr. Melanie Lenahan @melanielenahan.bsky.social · 05/02/2025

Best news ever! Registration for the 2025 Grading Conference is OPEN! Please join us to promote grading practices focused on equity & authentic learning. Consider submitting an abstract or volunteering! We value your contributions! #gradingreform Link: www.centerforgradingreform.org/grading-conf...

centerforgradingreform.org

The Grading Conference

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Estes, John @johnestesmath.bsky.social · 28/01/2025

What are the dimensions of the 1000-piece puzzle that has the fewest boarder pieces?

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Estes, John @johnestesmath.bsky.social · 26/01/2025

It kind of feels like it's going to be a long year.

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Estes, John @johnestesmath.bsky.social · 24/01/2025

We’re hosting the LA/MS MAA section in February at Belhaven. If you’re in the area, we’d love to have you come by.

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Estes, John @johnestesmath.bsky.social · 22/01/2025

We say a divides b iff you can have a rectangular Lego brick with b total studs and a studs along one side.

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Avery @averypickford.bsky.social · 20/01/2025

Chess Sudoku. Cool. I completed #Ronin #26 www.andrewt.net/puzzles/roni...

andrewt.net

Ronin

A sudoku game played on a chessboard

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Estes, John @johnestesmath.bsky.social · 19/01/2025

If it ain’t broke, fix it until it is. I’ve been there a lot!

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Steve Phelps @mathtechcoach.bsky.social · 19/01/2025

Here is another contribution to #genuary #genuary2025 #genuary19 "Op art." openprocessing.org/sketch/2515924

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Estes, John @johnestesmath.bsky.social · 17/01/2025

Most likely to use LinkedIn? I don’t like to judge, but who does that?

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Estes, John @johnestesmath.bsky.social · 13/01/2025

Tomorrow, 8:00 am, Discrete Math. It’s going to be a banger

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Estes, John @johnestesmath.bsky.social · 10/01/2025

Here's the assignment. The printing is specific to Prusa printers, but that's easy to change. You can do most of this on Wolfram Cloud. Exporting to the computer as an stl file might be the only sticking point. drive.google.com/file/d/1uRxq...

drive.google.com

Surface Print Lab.pdf

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Estes, John @johnestesmath.bsky.social · 09/01/2025

In multivariate, I have a project where students “make” a 3D surface in Mathematica and then 3D print them. It’s a fun project.

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Estes, John @johnestesmath.bsky.social · 09/01/2025

.@divbyzero.bsky.social I got a 404 error looking up your latex cheatsheet on Dickinson’s service. Do you have it shared somewhere else?

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Estes, John @johnestesmath.bsky.social · 07/01/2025

My son had an assignment in class where he had to turn a Christmas tree into something else. I’m such a proud father.

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Estes, John @johnestesmath.bsky.social · 05/01/2025

At the end of the term, 8/10 checked off HW is an A. Also, if they submit on time, they get a token. It costs a token to submit after the exam.

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Estes, John @johnestesmath.bsky.social · 05/01/2025

I have a short(ish) HW assignment covering a few topics. I include a guided question with fill-in-the-blank prompts, then a practice quiz, and then additional exercises. They only get credit if it’s mostly correct, otherwise they have to revise and resubmit.

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 03/01/2025

Occasional PSA, 2025 edition: @duetosymmetry.com and I made a graph paper package for LaTeX. Various grid styles (graph, quadrille, hex, iso, dot grid, etc), custom and pre-defined colors. Print out or make templates for your tablet. Github: github.com/mcnees/LaTeX... CTAN: ctan.org/pkg/gridpapers

A light blue grid on a white background.

A red isometric grid on a pink background.

A brown grid with major and minor lines, on a pale yellow background.

A green hex grid on a light green background.

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Lucy @leftliblucy.bsky.social · 03/01/2025

"just immigrate legally bro"

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Estes, John @johnestesmath.bsky.social · 03/01/2025

Glad to hear. I enjoy his style and use his ‘Proofs’ book too.

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Estes, John @johnestesmath.bsky.social · 03/01/2025

Nice. I love Geogebra visualizations.

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Estes, John @johnestesmath.bsky.social · 02/01/2025

Would you mind sharing your syllabus?

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Estes, John @johnestesmath.bsky.social · 02/01/2025

I’m using Jay Cummings’ Real Analysis. Lots of good commentary and written with undergrads in mind. I’m open to supplemental resources too.

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Estes, John @johnestesmath.bsky.social · 02/01/2025

I plan to use ‘weird examples’ and such. I like to say we’re going through Cal 1, but we’re removing all the safety nets to show you how weird things can get.

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Estes, John @johnestesmath.bsky.social · 02/01/2025

Very good point. I like to include history as much as I can. I’ll check these resources. Thanks

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Estes, John @johnestesmath.bsky.social · 02/01/2025

Maybe so… or at least just something to break the monotony of lectures. I’ve had a hard time getting undergrads “bought in” in my Intro to Real course.

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Estes, John @johnestesmath.bsky.social · 02/01/2025

Awesome. I’ll check this out! Thank you!

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