A Very Mathy Gift List
I am obsessed with this shape toy I saw in the gift shop at the Science Museum of Minnesota last week. Seen from above in the first photo, the triangle looks like a triangle. Seen obliquely, we notice that the triangle is embossed on a half-sphere, and so the sides of...
A walk around the lake
A very snowy winter is turning to a long, slow spring here in Minnesota. It is the kind of spring that makes us joyful for sunny 45° days. So I went for a long walk Sunday afternoon. Together with a meaningful percentage of the population of the city of Saint Paul, I...
Rectangles, zucchinis, and kindergartners
Getting ready for the new year, I decided to look back at the history of my newsletter (which comes out about 8 times per year; you can browse the archives and subscribe at this link.) I found this post from almost three years ago, and it feels very true to thing I'm...
On Being a Math Person (or Not)
One of my favorite parts of Math On-A-Stick is that it creates opportunities for positive conversations about math with adults. Ask any math teacher, and they'll confirm that when meeting a new person and revealing the work that they do, there is a high probability...
