Join me tomorrow at 11a EST to learn a bit about the history of this ancient toy and it’s close relationship to some flexagons. Catch this great conference organized by Orlando Math Circle before it ends. Register at bit.ly/fmcn-conference #FMCN22 #iteachmath #matheducation

Things will be a-happening for Global Math Week, Oct 10-17. Join The Global Math Project co-founder Raj Shah for surprising fun with shapes! globalmathproject.org/events/ Math Plus Academy AIM_MathCommunities MAA

Are you in the UF area? There's a UF Math Circle for the Fall! How tremendously fabulous!! circle.math.ufl.edu CYFEMAT Orlando Math Circle AIM_MathCommunities

Is it half?

We love #mathart (including quilt designs)!

In this week's #ThrowbackThursday, we revisit A. Rodin’s activity guide for “Art Meets Math: Escher’s Tilings.” We love the exploration of #tessellations & #symmetry! See mathcircles.org/activity/art-m… [📷: M. Dağlı] Anyone have #tiling pics to share? Post them here!

Partitive versus Quotative division? Or is it Quotative versus Partitive? (Really unenlightening K-12 education jargon!) Have I got it right with my pics? My question: In what sense are these the same? How explain to a student in a convincing/meaningful way?

It's Maths Talk Monday! How many dots do you see? More interestingly, how do you see them? For great maths teaching ideas straight to your inbox, sign up at: mathsteachercircles.org/sign-up/ #MTCoz #MathsTalkMonday #iteachmath #mtbos

Here's a YT playlist of some mathematical puzzles. Enjoy! youtube.com/playlist?list=… The Global Math Project MAA Math Plus Academy Michaela Epstein

Okay. I am fully owning it! For those for which this is a "thing," here's my take on folding a fitted sheet. For those for which this is not a "thing,"...great! youtu.be/DEwConOQmWM (For some reason, this video is garnering some notice again. It does so every now & then.)

One can fold a 2x2 square of paper into a 1x1 square with four layers in two folds. What's the minimum number of folds needed to fold a 3x3 square of paper into a 1x1 square with nine layers? (How do you know your answer is minimal?)

Math educators: The IES Math Summit is taking place virtually over the next 3 Tuesdays: Sep 12, 19, 26. Lots of great sessions and panels, covering preK-12. Free. Register here: registration.socio.events/e/iesmathsummit

Polypad is a great tool for exploring the artistic style of Piet Mondrian while also working on the Mondrian Art Puzzle by Gordon Hamilton (MathPickle). Explore for yourself at mathigon.org/task/mondrians…

More than 2,000 years ago, the Greek mathematician Eratosthenes came up with a method for sifting prime numbers out from the number line. In 1965, Paul Erdős called sieve methods “perhaps our most powerful elementary tool in number theory.” quantamagazine.org/a-new-generati…

“If gifted kids resist explaining their thinking, maybe the problems aren’t challenging enough.” Rich (and fun) mathematical discussion among this group with an elementary addition challenge! Cobb ALP #lovetothinkhere #NAGC23

Yahoo! Won a door prize during an inspiring session on math circles. Thank you to the Orlando Math Circle—I’ll love exploring these resources with our Cobb ALP Ts! Orlando Math Circle #NAGC23 #lovetothinkhere

MIT University just released free online courses. No payment required. Here are 10 courses you don't want to miss in 2024: