We’ve been loving running math workshops for teachers. First of all, teachers are awesome: they’re some of the hardest working, most motivated people out there. They want to [...]
I have a new resolution: I will use color in equations from now on. My inspiration was a post on the Fourier transform [thanks to Kalid for referring me to it]. The author, Stuart Riffle, begins with a familiar experience… a mathematical [...]
[See Squares of Differences I and Squares of Differences II, and apologies for the tardiness of the posting] I’ve learned a lot about Squares of Difference in the last months. [...]
Katherine and I are back in Seattle after a summer away, exploring the mathematics of activities not normally associated with math: building a kitchen, planting gardens, and [...]
Katherine submitted the puzzle for this week’s Numberplay at the New York Times Puzzle Blog, a lovely puzzle in honor of Avoid Triangles At All Costs (ATAAC) Day. So… 1. Check it out here! 2. Comment! We (and the people in charge of [...]
This blog post on the educational value of creative disobedience has been making the rounds lately in some math/science circles. It’s excellently conceived and well written. I found myself nodding for the duration of the read.
When I was in high school, I went through an experimental phase of essay writing. The standard essay form was too dry, too monotonous to express everything passing through me and [...]
The conversation around gender and mathematics is often driven by poignant anecdote or by statistics. We have either the individual story of heartache or we have a set of disheartening numbers, and in either case, I feel frustrated. But [...]
Unlike toys, you should always try to break your mathematics. An example: at some point, we get used to the idea of powers as being a shorthand for repeated multiplication. What is 34? It’s three multiplied by itself four times, [...]
[Note: this is a continuation to the first Squares of Differences post. Read that before continuing.] A week after introducing her class to squares of differences (see for the first post on this lesson), one of Katherine’s students [...]
How to Solve a Song with Math https://youtu.be/pCrD9N_3Jkw
I had the opportunity to speak at the University of Washington Monthly Math Hour on April 17. Following my talk a six and a half year old named Rebekah gave me this drawing she [...]
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