2025 — Year in Review

Here are some highlights from what has been another busy professional year.

In September I published a new series in the New York Times that turns Steven Strogatz’s wonderful “Math, Revealed” essays into teaching and learning resources. I got to write about favorite topics like taxicab geometry, triangular numbers, the golden ratio, and packing problems. Best of all, I got to collaborate directly with Strogatz himself! It was an honor to work with him, even if this doesn’t officially make my Erdős number four.

I’ve been thinking and writing about AI in education and math this year. I wrote about how students are using AI, how it is impacting the college admissions process, about experts calling AI-errors “sophisticated”, and how it’s affecting me as a book author. I’ve been through a few hype-bubbles in my time, and am generally skeptical by nature, but there’s no denying the impact these technologies will have in how we learn, teach, and even do math.

I’m wrapping up my 20th, and final, year as a Math for America Master Teacher, and I was proud to run one more workshop for teachers through MfA. “A One-Problem Tour of Statistics” was the story of what I learned by writing Painless Statistics, but also an homage to the kinds of math problems that you keep going back to. It was a fun and satisfying end to a string of nearly 30 workshops I’ve run in my time at MfA.

The applied mathematics and modeling program I run at my school had unprecedented success in 2025. We had a team win the NCTM Award in the 2024 High School Mathematical Contest in Modeling (HiMCM) and finish in the top ten worldwide in the 2025 International Mathematical Modeling Challenge (IMMC). Another team won the MAA Award in the 2025 MCM, finishing among the top of over 12,000 entries worldwide, nearly all of which were college teams! We also had a team earn an “Outstanding” designation — the highest honor — in the 2025 SCUDEM competition, a college-level differential equations modeling competition. I was very proud to be profiled on the COMAP website for “teaching, modeling, and mentoring at the highest level”!

This past summer I was invited to present to the Alliance for Decision Education on my work with student forecasting, after our students made impressive showings in two individual forecasting competitions in 2024 and 2025. I also appeared on MoMath’s QED and spoke with mathematician-in-residence David Reimann about math and math education.

It’s been a good year professionally, and I’m looking forward to more to look back on in 2026!

Related Posts

Strogatz, the NYT, and the Golden Ratio

My latest article for the New York Times Learning Network turning Steven Strogatz’s wonderful “Math, Revealed” essays into teaching and learning resources is out! It’s all about a mathematical idea that has captured humanity’s interest for over 500 years — the golden ratio. Come see how algebra, geometry, calculus, and even dentistry come together in one of math’s most popular numbers.

The piece is freely available here, and also includes free access to the original essay.

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Strogatz, the NYT, and Taxicab Geometry

I’m excited to share a new piece I’ve written for the New York Times Learning Network that turns mathematician Steven Strogatz’s excellent “Math, Revealed” essay on Taxicab geometry into a resource for teaching and learning.

If you’ve ever wondered how pi could be equal to 4, or what a perpendicular bisector looks like in the Manhattan metric, take a look! The article includes discussion prompts, creative challenges, and classroom suggestions from algebra to calculus. And it even includes some suggestions from Strogatz himself! The piece is freely available here, and also includes free access to the original essay.

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Math That Connects Where We’re Going to Where We’ve Been — Quanta Magazine

My latest column for Quanta Magazine is about the power of creative thinking in mathematics, and how understanding problems from different perspectives can lead us to surprising new conclusions. It starts with one of my all-time favorite problems:

Say you’re at a party with nine other people and everyone shakes everyone else’s hand exactly once. How many handshakes take place?

This is the “handshake problem,” and it’s one of my favorites. As a math teacher, I love it because there are so many different ways you can arrive at the solution, and the diversity and interconnectedness of those strategies beautifully illustrate the power of creative thinking in math.

By connecting different approaches like counting and recursion, we can connect mathematical ideas across disciplines and discover new relationships.

Like all my columns for Quanta, this piece is free to read at QuantaMagazine.org.

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