Proofing #SubtractionbyHeart! The new cards are looking lovely :-) We should have these out by early 2026! #iteachmath #mtbos

I'm excited to present a free webinar on September 30. Register here: heinemann.zoom.us/webinar/regi...

Don’t miss this one-night-only event! COUNTED OUT screens at Jacob Burns Film Center on 10/6 — a powerful doc that shows how math shapes democracy, opportunity, and our future. 🎟️https://buff.ly/tcioEb3 #CountedOut #MathForAll #CountMeIn

Pattern block play! #21CenturyPB #iTeachMath

Visual Patterns 🤝 Pattern Blocks I am currently OBSESSED, in a (mostly) healthy way, with @fawnnguyen.substack.com visual patterns and @mathforlove.bsky.social pattern blocks for kids to learn and create patterns. Ah-may-zing. Also, I am in LOVE with Mary Vail's Thinking Desks, they are phenomenal!

Pattern block play! #21CenturyPB #iTeachMath

Pattern block play! #21CenturyPB #iTeachMath

👉 SEE YOU IN SEATTLE!! 👈 Town Hall, October 21st, 6 pm See thread below for details!!

Happy 3²/4²/5² ! Here's a cool fact about a 3-4-5 right triangle: The circle that fits perfectly in a 3-4-5 right triangle has an area of pi square units! Here's why.

Pattern block play! #21CenturyPB #iTeachMath

This seems like the kind of scientific discovery @aptshadow.bsky.social would turn into a novella (if he's not already working on it). www.nytimes.com/2025/09/15/s...

Watch the trailer of Counted Out: https:// countedoutfilm.com Friday Nights at Oakland Museum with Off the Grid: museumca.org/about-friday... Pre-Registration: docs.google.com/forms/d/e/1F... #cmcmath

I shared some resources at @pwharris.bsky.social's blog: www.mathisfigureoutable.com/blog/%2Fblog...

Pattern block play! #21CenturyPB #iTeachMath

Pattern block play! #21CenturyPB #iTeachMath

NEW Post: When ChatGPT Calls Me Evil, I Know I’m Winning fawnnguyen.substack.com/p/when-chatg... HT to @mathforlove.bsky.social for the fun riddle!

Pattern block play! #21CenturyPB #iTeachMath

Curious how upper elementary teachers use apps/tablets in their classrooms. Do students log on 2 - 3 times a week? Every day? Not at all? How long are students on the app/tablet at a go? 10 minutes? 20? More?

Pattern block play! #21CenturyPB #iTeachMath

Most people: I cant understand why you like math so much, math is boring Meanwhile in math:

Pattern block play! #21CenturyPB #iTeachMath

11yo daughter: CAN I SLEEP WITH THIS!!? 😆🤣🤣🤣🤣🤣 @mathforlove.bsky.social #iteachmath

Pattern block play! #21CenturyPB #iTeachMath

Pattern block play! #21CenturyPB #iTeachMath

Pattern block play! #21CenturyPB #iTeachMath

We are literally rolling out the red carpet at this year's #NCSM2025! 🍰 Hors d'oeuvres 🥂 Beverages 🤓 Math leaders geeked about HQIM 🎬️ And "Counted Out" watch party & live Q&A with film director, Vicki Abeles! Add this event to your registration for just $5 www.mathedleadership.org/57th-annual-...

Pattern block play! #21CenturyPB #iTeachMath

The dodecagon in the post above was created by arranging six rectangles and six equilateral triangles around a central hexagon. #21CenturyPB #iTeachMath

Pattern block play! #21CenturyPB #iTeachMath

The dodecagon in the post above was created by arranging six rectangles and six equilateral triangles around a central hexagon. #21CenturyPB #iTeachMath

New pattern block play for September! Building dodecagons! #21CenturyPB #iTeachMath

@countedout.bsky.social - this is how we grow and roll mathematics at the MN State Fair. Will be talking with "Math On A Stick" folks about a "Counted Out" showing after they recover from 12 days of working MN State Fair.

Minnesota's Largest Pattern Block Mosaic! talkingmathwithkids.com/blog/minneso...

This mini mosaic was inspired by ‪@triangleman.bsky.social‬'s post on building Minnesota’s Largest Pattern Block Mosaic.

Progress!

Seriously, just so cool 🤩

Math On A Stick at Minnesota State Fair. 10th anniversary celebration includes making a ginormous collection of hexagon pattern block tilings. Visiting mathematical artists curated pool noodle building. If I win the lottery I am flying all my blue sky math pals to come and play here.

"Watching this film made me realize that math is something I want to try again." #CountMeIn #CountedOut #MathForAll

This blog post I wrote (at the start of the pandemic) about having math conversations at home feels like a useful article to revisit as school is about to start :-) mathforlove.com/2020/04/math...

IT. IS. AT. THE. PRINTER!!! My next book, Building a Positive Math Identity: A Brain Science Approach will be available in less than a month! Pre-order now for a 20% off discount: lieslmcconchie.com/books @CorwinPress

Pattern block play with octagons! #21CenturyPB #iTeachMath

Some deep wisdom to this, imo

#MathOfTheMoment - Gerrymandering. As recent headlines remind us, math isn’t just in classrooms — it decides who gets represented, and whose voice is counted out. #CountMeIn #CountedOut #MathForAll #Democracy

I had some time today to download and try my hand at a few of the Bloom class of origami folds. They were a lot of fun, data set with select crease patterns available here scholarsarchive.byu.edu/data/85/ (YT video of the researchers who found them: youtu.be/YMV43l1nnoM?...)

This is a beam of sunlight. I can't wait to see photos of the final mosaic!

Meanwhile, back in Minnesota… (photo credit: J Ostlund, who joined the leadership team in order to kick things off this morning)

Heckuva trick!

Great thread 😀