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Oscar Levin

@oscarlevin.com

Professor, Mathematician, Developer, Author, Magician, and Oxford Comma Fan.

85 Posts538 Follower400 Folgt
Oscar Levin@oscarlevin.com · 2w ago

Is it time to start writing your course materials? Want to make them accessible? We are hosting a few free workshops in the next weeks to help you do just that with PreTeXt. And using PreTeXt.Plus means nothing to install and no GitHub required. Info here: pretext.plus/announcement...

PreTeXt.Plus | Writing Accessible Course Materials with PreTeXt: workshops in July & August 2026 | Office Hours at MAA MathFest

To help our colleagues adopt PreTeXt to meet this need (whether via the PreTeXt.Plus app, or a local install of PreTeXt's free and open source software), we're excited to offer several virtual workshops this July and August.

pretext.plus

Steven Clontz@clontz.org · 2mo ago

People kept asking, so I put all my thoughts together here (mostly things I've learned from @oscarlevin.com): mathtech.org/2026/06/11/a...

Accessibile PDFs?

A frequent question our community is asked: “How do I make an accessible PDF?” And, even setting aside the large commercial incentives for certain businesses to make accessible PDFs viable, there is ...

mathtech.org

Steven Clontz@clontz.org · 3mo ago

PDF/A-1a is just a scam by Big PDF to sell you Adobe Acrobat Pro.

Mitch Keller@mitchkeller.phd · 3mo ago

#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.

Oscar Levin@oscarlevin.com · 7mo ago

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...

RFK Jr.'s new food pyramid puts meat, cheese and vegetables at the top

Health Secretary Robert F. Kennedy Jr. has announced new dietary guidelines for Americans focused on promoting whole foods, healthy proteins and fats. And he has "declare[d] war" on added sugar.

npr.org

Oscar Levin@oscarlevin.com · 12mo ago

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...

Handouts and Worksheets in PreTeXt

We all know that PreTeXt is great for writing textbooks. But did you know that it can also be used to create small, standalone course materials? Perhaps you want to create an in-class activity to en...

mathtech.org

Oscar Levin@oscarlevin.com · 12mo ago

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

doom boy@doomboy.bsky.social · last yr.

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

Arula Ratnakar@arula-ratnakar.bsky.social · last yr.

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😅

Barbara Fantechi@barbarafantechi.bsky.social · last yr.

A reminder that this way to teach maths is a choice. Other choices are possible. I was good at calculating as a kid, but what I really loved was ideas and puzzles, and luckily I was given many. Excellent thread.