Tags » Geometry

"Crop Circles" drawing in progress

I’m currently working on “Crop Circles” which is loosely inspired by the subject of the title. My color palette is greens and earth tones. The images are work in progress. 33 more words


Euclid's Elements - In Our Time with Melvyn Bragg

Euclid’s Elements

BBC Radio 4 In Our Time.

Melvyn Bragg and guests discuss Euclid’s Elements, a mathematical text book attributed to Euclid and in use from its appearance in Alexandria, Egypt around 300 BC until modern times, dealing with geometry and number theory. 85 more words


Making a Better Question Worse

I recently read a post on betterQs from @srcav with an area question from Brilliant that I added to today’s opener.

I knew something was up when I saw my students’ results. 85 more words


Playing Sports in Hyperbolic Space - Numberphile

“Dick Canary on baseball and golf in hyperbolic space” from Numberphile.


The Surface Area of a Sphere

I’ve written before about making sense of the surface area of a sphere. The lesson this year unfolded (unpeeled?) a bit differently.

I’m not sure how students might guess that the surface area of a sphere has something to do with the area of a great circle of the sphere. 200 more words


End of 3rd Quarter

Hi everyone.

It’s the end of 3rd quarter, and we’ve got a grading day. Actually half-day. But, tbh, as my kids say, I got here 15 minutes late (f off, I biked 7 miles in the snow), met with my mentor, made a sweet playlist, did some grading, went out to lunch with my department, and now I’m back again to finish grading. 568 more words