Kirk Keating

Thanks to all the participants in my Rich Task and AI Workshop today at #ITCamp2025. So much wonderful learning! @wipebook.bsky.social #hrcemath

Where do you notice circles, cylinders, spheres or ellipses in the world around you? Example photos include an orange life ring, a marshmallow toasting in a circular fire pit and cylidrical bales of hay drying in a field.

The penultimate week of #MathPhoto25 is #circles! Where do you notice circles, cylinders, spheres or ellipses in the world around you? #ITeachMath #MathsToday

Go from wondering about how to use open questions in math instruction to confidently creating your own or adapting ones you find.

Learn more about Marian Small's How To Create And Use Open Questions In Math Class online workshop at grassrootsworkshops.com/wor...

I've heard lots of great ideas in presentations, but I often need more time to think about an idea, try it out, and learn more. That's why I made my six-week online workshop to help teach math through problem solving.

Learn more at: https://robertkaplinsky.com/eps/

Playing Mastermind with my 6 year old inspired me to make this in #Desmos. I discovered I'm a lot worse at guessing than I thought! #MTBoS #iteachmath classroom.amplify.com/activity/687...

Can your high school students create a parallelogram, triangle, or rectangle by listing their points when given one? Find out using these three Open Middle problem from Bryan Anderson.
www.openmiddle.com/creating...
www.openmiddle.com/creating...
www.openmiddle.com/creating...

cover of mathematics tasks for the thinking classroom, grades 6-12

ICYMI, Math Tasks for the Thinking Classroom, Grades 6-12 (aka "the burgundy book") is available for preorder!
US customers: Pre-order from Corwin.com and use code SAVE20 to receive 20% off!
Canadian customers: Pre-order from University of Toronto Press (t.ly/WVNCg) with code TASKS20 for 20% off!

Vancouver!📣
I’m hosting a laid-back Choosing To See Book Tour coffee meet-up on July 7 — come connect, sip ☕, and chat about student-centered learning.
📍 We Bake Cafe, 9630 Cameron Street, Burnaby, BC | 🕖 5-6 PM
🔗 RSVP: sedaeducationalconsulting.com/events-1
#Choosing2See #ICUCARE #dbc_inc

66. Most Generous Interpretation Little Minds Big Thinkers · Episode

Feeling inspired by @amyschang.bsky.social today, which is not at all surprising. Leading with curiosity in the #thinkingclassroom. open.spotify.com/episode/1Nru...

Peter's first ever online workshop is coming to @grassrootsworkshops.com! Pretty exciting news.

Just a few of our INCREDIBLE lineup at #BTCC25

@tammymcmorrow.bsky.social @latrendak.bsky.social @peterliljedahl.bsky.social

Join the 1st @grassrootsworkshops.com for Building Thinking Classrooms! Learn directly from @pgliljedahl.bsky.social through 6 modules, 20 research-backed lessons, and 80+ videos.

Put your BTC learning into practice right away!

More info here: grassrootsworkshops.com/workshops/bu...

If you are attending #BTCC25, Corwin will take orders there, and @pgliljedahl.bsky.social and @webbkyle.bsky.social can sign a "book plate" for you to insert into your book when they you receive it in the fall!

The image is of the book cover of "Mathematics Tasks for the Thinking Classroom: Grades 6-12." On the cover is an illustration of stick figures in groups of three orange, three green and three blue. The figures are working on math problems on vertical boards. Authors Peter Liljedahl and Kyle Webb are listed, as well as the illustrator, Laura Wheeler.

Exciting news!

Mathematics Tasks for The Thinking Classroom, Grades 6-12 is in production and available for pre-order, with a publication date of early October!

Pre-order your copy here: corwin.com/books/btc-ma...

#btcthinks #iteachmath #MTBoS #thinkingclassrooms

Excited to continue using EdTech to empower Ss to actively explore, discover, & THINK as I further integrate it in BTC practices. Here, the start of a new workshop for 2025 BTC conference in Seattle, & one I'll virtually facilitate later this yr. @peterliljedahl.bsky.social @btcthinks.bsky.social

For those of you who are interested in seeing what a BTC lesson looks like, the Dutch BTC website has just posted some amazing classroom videos of Maarten Müller doing a convergent and a divergent lesson. They are in Dutch but the visuals are amazing. buildingthinkingclassrooms.nl/beeld-en-geluid/

It's Mental Math Monday! How would you mentally calculate this: 45 is 30% of what number?

Jason speaking to a crowd.

An audience holding up whiteboards

A diagram with 3 axes. One is Rachel Lambert’s continuum of instructional practices from less to more support (unassisted discovery, guided inquiry, guided strategic development, strategic coaching, and explicit instruction). A second axis is high fidelity to surface level, and the third is timely to ill-timed.

A diagram on presenting new material in small steps illustrated by thin-sliced tasks

Some screen grabs of my OAME presentation, “Let’s Get This Straight: Making Sense of the Explicit vs. Inquiry-based Instruction Discourse and What it Means for your Math Teaching.”

The audience created word clouds, shared ideas, answered math questions & sang a little Bon Jovi. All in a day’s work.

[New Post] Ontario Math Links-My favourite #math related links from this week:

ontariomath.blogspot.com/2025/05/math...

links&help from @mrvalencia24.bsky.social @comapmath.bsky.social @openmiddle.com @robertkaplinsky.com @howiehua.bsky.social @unsolvedmre.bsky.social #MathChat #MTBoS #iTeachMath

Photos of all the keynote and featured speakers for the ATMNE 2025 Conference and dates of October 30 & 31, 2025.

Calling all math teachers! Registration is now open for the 2025 ATMNE Conference in Massachusetts October 30-31st! Click the link below. #ITeachMath #MTBoS #ElemMathChat @atmnemath.bsky.social
atmim.wildapricot.org/event-5937758

Dot Paper Task A low-tech task with high-level thinking

One of those heart-FULL teaching days:

New post: open.substack.com/pub/fawnnguy...

Common denominators is a common fraction comparison strategy, but did you know we can use common numerators as well? Here's how we can do this:

Assessment is a process, not an event.

A GIF showing the Contour Golf activity in action.

Take a swing at our latest monthly challenge: Contour Golf! ⛳

In this activity for grades 8+, students will aim for a hole-in-one by mastering the right combination of power and direction on various 3D graphs.

Join classrooms nationwide here: student.desmos.com/join/w2cpb8

#MTBoS #ITeachMath

Sneaky Brilliance Built Into the Desmos Platform A This is a 6th-grade digital activity in Amplify Desmos Math (ADM).

New: Sneaky Brilliance Built Into the Desmos Platform
open.substack.com/pub/fawnnguy...

#MTBoS #iteachmathh

Thinking about #BuildingThinkingClassrooms?

Here’s your chance to learn directly from Peter Liljedahl.

💡 Practical, high-impact workshops—no matter where you are in your journey.

🗺️ Explore the BTC PD roadmap: wix.to/qnr1Hmh

#ThinkingClassrooms #Education #iteachmath #MTBoS

You can now embed Open Middle problems in your Canvas or on your website!

Want to know the secret to become a more effective math teacher?

Learn more and register here: flynneducation.com/memberinfo

#math #teacher #education

Our sincere thanks to CCRCE, EECD, Truro Middle School, and all participating teachers and students for your support of the 2025 Nova Scotia Innovation Fair.
#MakeSomethingBrilliant #NSIF2025 #WhatIf2025