I've often had a gut feeling that we actually invest life into math questions that grab us. Here' s a question I like: Question: How does a bishop behave on a torus chess board?
I was planning to redo this video, but with the Julia Robinson Festival coming up on Sunday, it’s going to be a while before I get it together, so here it is, as it is. Let me [...]
Looking for another reason to sign up for the Julia Robinson Math Festival, happening this Sunday, March 18? https://mathforlove1.wpenginepowered.com/events-festival Nickolai Pirak is a professional juggler from Seattle who will be giving [...]
We are expanding our class offerings at the Robinson Center, with Saturday classes now available for students K-11. Registration opened today, and these classes have a way of filling up fast! Registration and class info is here: [...]
28325674549 A hand made a number. It joined one little stone to another, one thunderclap to another, one fallen eagle to another, one arrowhead to another, and then with the patience of granite the hand made a double incision, two wounds [...]
I’ve had Conrad Wolfram on my mind for some time. He gave a TED talk on computer-based math a while back, and just gave an updated talk at Learning Without Frontiers. Here’s [...]
I was asked last week to teach a guest lesson for 3rd graders on fractions using Everyday Math. The book had some nice lessons, including one that involved building pattern block [...]
I finally tried my hand at a video explanation of a mathematical idea I like. This is part 1 in a short series on the Pythagorean Theorem. It starts where I’ve always felt the [...]
Seattle’s first Julia Robinson Mathematics Festival is coming up, and you are invited! What fraction of the regular star is shaded? What : The Julia Robinson Math Festival, a noncompetitive event featuring an abundance of inspiring [...]
Take any quadrilateral, like this one then mark the midpoints, and connect them up. It sure looks like we’ve built a parallelogram, doesn’t it? The amazing fact here is [...]
“Beauty is the first test: there is no permanent place in the world for ugly mathematics.” – G. H. Hardy I’ve been reading Proofs from THE BOOK by Aigner and Ziegler, a [...]
(Click here for Part I or Part II) Recall the puzzle: Step 1: Choose a starting number. Step 2: Square the number. Step 3: Sum up the digits of that number. Step 4: Repeat steps 2 and 3 until you understand what’s going on. and recall [...]
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