#PreTeXtGang win during the Canvas outage: I had been embedding worksheets and annotated notes in Canvas (Thanks @oscarlevin.com !) from GitHub-pages deployed stuff. Just had to email students direct links to the entire thing. Quickly built and deployed exam questions that had been posted as SCORM.

oh also lol this is gonna make a lot of people happy #MathSky

Faculty and students can now create a pretext.plus account without needing an invite when they use their .edu email address! We'd love your feedback at the #pretext-plus channel of mathtech.org/chat!

Enhancing digital accessibility of mathematics, hosted by the AMS: hub.ams.org/courses/1291...

Oh no! #MathSky friends! According to a theoretical physicist and Scientific American, we just can't agree! Even if it doesn't lead to any more contradictions that calculus. Mathematicians can’t agree on whether 0.999... equals 1 | Scientific American share.google/mA2qoeNbIulE...

Another free #PreTeXt workshop, this time on a Monday (3/2), only one hour, and focused on creating a worksheet using the pretext.plus online editor. Register here: scholarlattice.org/collections/...

Our next "Getting Started with #PreTeXt" workshop is next week on Thursday, February 12, 12-2pm EST. Space is limited. Register for free: scholarlattice.org/collections/...

Want to get started with #PreTeXt? Maybe write your syllabus or a worksheet so it is accessible? @mathtech.org is hosting a free zoom drop-in office hours 12-2pm EST today. Link available at mathtech.org/events/

I know that nutrition is complicated and there can be honest debates about the health and morality of eating meat... But can we at least agree that that there is zero way in which this is a "pyramid"? www.npr.org/2026/01/07/n...

Excited to share the below announcement for our new app at pretext.plus -- author PreTeXt in your web browser, no GitHub required! Join the @mathtech.org Discord chat to grab an invite code: first come, first served! pretext.plus/projects/80f...

MAA workshop on accessible course materials with @mitchkeller.phd and @oscarlevin.com! Free for AMS and MAA members. events.zoom.us/ev/AjygoFh_y...

I know there are lots of great causes to support, but in case you want to help Kenyan kids learn math... www.crowdfunder.co.uk/p/open-digit...

In today's blog post, @StevenClontz shares his passion for getting mathematicians (and other mathy academic types) up and running using GitHub tools that only require a web browser. mathtech.org/2025/10/10/g...

Use Doenet.org to create mathematical interactives to support inquiry-based learning: mathtech.org/2025/09/26/d...

Our Grand Opening continues on Monday as @oscarlevin.com shows us how PreTeXtBook.org can help authors create accessible and interactive scholarly documents. Join us Sep 15 at 9am Eastern. preview.scholarlattice.org/collections/...

New PreTeXt feature: Handouts! If you use guided notes in your teaching, or just want to make accessible versions of the printouts you bring to class, you can now author these in #PreTeXt and print directly from the browser (or save as PDF to annotate on a tablet). mathtech.org/2025/08/17/h...

This fall I'm going to use master/specification grading in two new courses. So can someone remind me where the big online repository of learning targets for all math courses is? Or if there isn't one, could someone please make that? Or help me make it? #MathSky, #iTeachMath

This sudoku is full of #math lessons: logic, combinatorics, symmetry, and joy. Try it here: sudokupad.app/qt0xjevecl. Then watch this: youtu.be/ddnLr8jWNeY?...

if you click the first hyperlinked word on any wikipedia article, and then click the first hyperlinked word on the next one, and so on, within 10-15 clicks you will get to the wikipedia article for philosophy. and i think that's beautiful

Accessible Course Materials with PreTeXT Virtual Workshop: Monday, May 19 to Thursday, May 22, 2025; 12-2pm EDT Not only free, but limited participant stipends are available! Info at mathtech.org/workshops/ma...

If you're interested in authoring accessible and/or interactive course materials, or curious about learning more, come by tomorrow's PROSE drop in hours with me @chrissysafranski.bsky.social @oscarlevin.com @clontz.org, 12E, 9P! prose.runestone.academy/dropin/

All statements made by me in posts on bluesky today are false.

I wish Discrete Math was taught in high school. It was one of my favorite classes. Esp binary relations changed the way I thought about the world. Even now I have a habit of turning irl things into binary relations and thinking about if they're symmetric, antisymmetric, transitive, reflexive +more😅

Shameless self back-patting: www.unco.edu/news/article...

My SIMIODE EXPO 2025 talk on why #PreTeXt is so awesome, even for creating small course materials, is now up. You can find it through this MathTech.org post: mathtech.org/2025/02/16/s...

"However cold it is outside, it's warm when I think of our friendship." -- my Google assistant Suck it, Alexa!

I think we should proclaim today π+0.02 day. Just my two cents.

Hey #iTeachMath folks, has anyone tried asking students to use AI chat bots as a "thinking partner" to help them understand a topic? Prompts like, "pretend you are another student in my calculus class asking me to explain limits". This sort of thing just helped me figure out a hard problem I had.

Wrote a blog for @mathtech.org on how #PreTeXtGang 's features can facilitate active learning and novel forms of inquiry! mathtech.org/activelearni...

Is the list of lists of lists an element of the list of lists of lists? @depthsofwikipedia.bsky.social #russellsparadox

Saw this: tinyurl.com/53225tn9 Thought this: there must be a world record for breaking the most world records in one day. How many world records would you have to break in order to break that world record? Help me out, #MathSky and #LogicSky!

NPR reported this morning that DOGE has already saved around $2 BILLION!!! Just think: if that goes back to tax payers, we could all see almost $6 per person. But that's just using regular math. If you use DOGE math, its $6,000 per person! I feel so much better now.

Join @clontz.org @oscarlevin.com levin.com Chrissy Safranski (who should get on here) and I tomorrow from 12-1 E, 9-12 P for our weekly PROSE zoom office hours to talk about #PreTeXtGang and other open source math-ed stuff! prose.runestone.academy/dropin

Lambstein

What do all of you use for creating accessible math equations? Of course #PreTeXt is the best answer, but what alternatives are there? Please share any good resources you have found and I'll collect them on MathTech.org. #MathSky #iTeachMath.

Join @clontz.org @oscarlevin.com Chrissy Safranski (who should get on here) and I tomorrow from 12-1 E, 9-12 P for our weekly PROSE zoom office hours to talk about #PreTeXtGang and other open source math-ed stuff! prose.runestone.academy/dropin

Note to self: sometimes failures to push to GitHub are not entirely my fault. It is worth checking www.githubstatus.com when things are acting weird.

In the intersection of #MathSky and #jmm2025, and want to hang out with #PreTeXtGang? Join me the the Sheraton lobby Friday night 8 to ??? to learn more about PreTeXt or do some hacking.

Is your new year's resolution to start writing your mathematics in accessible formats? Then you really should check out #PreTeXt. See my piece in November's Notices for more: t.ly/T4zXM. #MathSky, #AcademicSky

Suddenly I'm intersted... Judge Delays Decision After Learning One Menendez Brother Always Lies, One Always Tells The Truth — theonion.com/judge-delays...

Curious what #MathSky folks think about the "hook" of the recent Quanta article, www.quantamagazine.org/maths-bunkbe.... My first thought was that it mistakenly treated "conjecture" like a scientific "hypothesis" that researchers wanted to believe. But maybe things are different outside my area?

Counting is easy, right? How many elements are in the set A = {2, |A|}?

How to introduce myself to the $\neg x$ community...? Let's play two truths and a lie: 1. This statement is one of the truths. 2. Statements 2 and 3 are true. 3. The second statement is a lie.

Hey #MathSky! 👋 Interested in learning how to leverage #computing to advance your mathematics research and teaching? You may be interested in the @aimathematics.bsky.social sponsored "Leveraging GitHub and AI for Mathematics Research and Teaching" PEP: jointmathematicsmeetings.org/meetings/nat...