Matt,
If you have an article for MH and have questions about copyright, please get in touch: mathhorizons@maa.org

Stuart Boersma
MH, Editor

Using Data Science for Social Good: Mapping Opportunity Youth Published in Math Horizons (Vol. 32, No. 4, 2025)

Link to article: www.tandfonline.com/doi/full/10....

While the entire new issue of Math Horizons is available for MAA members, Zofia C. Stanley's and Chad Topaz's article "Using Data Science for Social Good: Mapping Opportunity Youth" is available to everyone. @chadtopaz.bsky.social @joinmaa.bsky.social

The latest issue of Math Horizons is available to MAA @joinmaa.bsky.social members online.

A Trick Fitch for Two Published in Math Horizons (Vol. 32, No. 4, 2025)

Also, Tom Edgar has a nice article about the Fitch Cheney card trick. @cardcolm.bsky.social improved it from a five-card trick to a four-card trick and to a three-card trick. Tom gets it down to two cards and even one(ish)! www.tandfonline.com/doi/full/10....

I have a new article in Math Horizons, "Folding a Cardioid."
www.tandfonline.com/doi/full/10....

High school and college students: register for Kryptos! The exciting codebreaking competition begins April 10!
sites.google.com/view/kryptos...

Black and white photograph of Katherine Johnson, a NASA mathematician, wearing glasses and a blazer. To the left of the image, a dark blue panel with geometric patterns features white and light blue text reading: "MAA | Black History Month. Katherine Johnson (1918–2020). A NASA mathematician whose calculations of orbital mechanics were critical to the success of the first U.S. space flights."

Join the MAA in celebrating Katherine Johnson, whose contributions advanced NASA’s space exploration mission. Her legacy has inspired generations to enter the STEM field. 🚀 #blackhistorymonth

Sketch of a quadratrix trammel

The latest issue of Math Horizons is available to MAA
@joinmaa.bsky.social
members online (and print is showing up in mailboxes).

Andrew Simoson helps us build a trammel to construct a quadratrix!

#AMTE2025 Exhibitor Feature: TODOS Mathematics for All!

The TODOS @todos-math.bsky.social mission is to advocate for equity and high quality mathematics education for all students— in particular Latina/o students

Grab a magnet, brochure, or journal + and check out the new book Antiracist Math Ed 💕

Sketch of a quadratrix trammel.

In the new issue of MAA's @joinmaa.bsky.social Math Horizons, Andrew Simonson reminds us what a quadratrix curve is and (drum roll please...) shows us how to build a trammel to construct our own! maa.tandfonline.com/journals/umh...

Image of February 2025 issue of Math Horizons showing several Rubik's cubes patterns.

The latest issue of Math Horizons is available to MAA @joinmaa.bsky.social members online.

Maria, Katherine, and Michelle Nogin help us understand why some Rubik's curbs patterns are not possible. Read their article "Permutations in Rubik's Cubes" in the latest issue of Math Horizons.

My grading philosophy? Do No Harm. And the best way to minimize the harms of grading is to implement alternative grading models that release the pressure valve and honor the fact that learning is a deeply complex process that unfolds at different rates for different students. #UngradingChat

This is a good time to (re)read Rebecca Solnit’s Hope in the Dark. And here she’s sharing free copies for a week.