In just a few years artificial intelligence tools have progressed from solving formulaic math contest problems to generating novel proofs of long-standing open conjectures. The way math is done is changing, and more change is coming. Anyone interested in math should be paying attention to the unfolding story of AI-assisted [ ]
I m excited to be presenting Connecting Classroom Math to AI at the upcoming NCTM meeting in New Orleans. I think math teachers are uniquely positioned to help students develop healthy, productive, and realistic attitudes toward artificial intelligence tools by making sure that these tools are understood as applications of mathematics. [ ]
A snow day snow array! I thought of punching out that one stubborn entry, but let it be in the spirit of wabi-sabi. It s like the Great British Baking Show s missing raspberry. Related Posts
I ve always found it cool that if you double the smaller acute angle in a 3-4-5 triangle you get the larger acute angle in a 7-24-25 right triangle. You can see this as a consequence of the double angle formula for sine. If is the smaller acute angle in a [ ]
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 [ ]
Draw the lines you see. I enjoy drawing, and I’m pretty good at drawing mathy things — like surfaces and shapes and diagrams — but beyond that I really have no idea what I’m doing. I’ve always wanted to improve, so when I saw a “Drawing for Teachers” course in [ ]
I read around 30 books in 2025, a number I m proud of but know could be higher. Here are some of the books I m still thinking about at year s end. “Infinitesimal” is the story of the heretical idea that a line segment could be divided into infinitely many parts. Literally [ ]
I write around 30 recommendation letters a year. These are mostly for students applying to college, but increasingly I’m asked to write recs for competitive summer programs, private schools, scholarships, even internships. It’s a lot of work. I estimate that I spend around 100 hours a year on it And [ ]
I was excited to run my workshop A One-Problem Tour of Statistics for teachers at Math for America in New York City this past week. When I was writing Painless Statistics a few years ago, there was one simply-stated problem I kept going back to that continually helped illuminate important [ ]
My latest article for the New York Times Learning Network turns Steven Strogatz s wonderful Math, Revealed essay on triangular numbers into a teaching and learning resource. Learn about how a favorite number pattern connects algebra, geometry, and calculus, and even extends into CAT scans the Fab Four! The article is [ ]