This photo tells half the story of today’s Math Circle: people working together to solve a problem. The question was whether the famous “Gas Water Electricity" problem is solvable or impossible...

After we played with Polydrons and Schläfli symbols* for about 10 minutes, we created a function machine. The students dictated the machine’s parts (various polygons, a cupcake, and sprinkles...

“How many points should our polygon have?” R asked G. They were playing with the dynamic geometry software Geogebra* before today’s Math Circle began.

As I was setting up, I had mentioned...

“Oh no, now she’s going to ask us the definition of the word flat,” said Z, after the whole group had agreed that a plane can be defined as a “never-ending flat surface without thickness.” I...

“I worked on my Flower of Life at home,” said Z as the students entered the room. As she showed me her work, the others began to draw compass designs long before our circle officially began. I...

I had hoped that we could quickly focus attention by starting with a game of “How Are They Different?” I had thought that we could eliminate the distraction of inequitable turn-taking by saying...

“Something is in the air today,” said Talking Stick co-director Angie. The kids came in brimming with energy, and most came early. As we waited for the last child to arrive (still early), four...

We had a few visitors today, so we started with a collective recap of our voting scenario from last week. Kids immediately started suggesting still more voting/counting methods. M, who has...