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Kirk Keating

@ksquaredmathns.bsky.social
103 followers 101 following 9 posts
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Reposted by Kirk Keating
Grassroots Workshops @grassrootsworkshops.com · 25/08/2026
Build your own Thinking Classroom using 14 research-based practices that empower students to collaborate, persevere, and think deeply and critically. Learn more about Peter Liljedahl's Building Thinking Classrooms online workshop at grassrootsworkshops.com/wor...
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Reposted by Kirk Keating
Grassroots Workshops @grassrootsworkshops.com · 28/06/2026
Build your own Thinking Classroom using 14 research-based practices that empower students to collaborate, persevere, and think deeply and critically. Learn more about Peter Liljedahl's Building Thinking Classrooms online workshop at grassrootsworkshops.com/wor...
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Howie Hua @howiehua.bsky.social · 28/06/2026
Fun math trick: Here's how we can mentally calculate cube roots
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Nova Katz @novakatz.bsky.social · 22/06/2026
This is what a BTC Workshop sounds like! The beautiful buzz of Thinking: curiosity awakened, conversations started. Thanks Düsseldorf for your energy! 🐝⠄⠂⠠⠂݆
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Nova Katz @novakatz.bsky.social · 21/06/2026
This makes me think that when we have fixed mindset students, such as my fourth grader, instead of asking them to explain their thinking or do a glass assessment, we could ask them to groupitize. share.snipd.com/snip/3010151...
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Pierre Tranchemontagne @pierretranche.bsky.social · 21/06/2026
I finally took some time to add submitted images to the Number Talk Images website. Check them out on the Photos page. ntimages.weebly.com
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Nova Scotia Math Teachers Assn @nsmta.bsky.social · 24/02/2026
The Building Thinking Classrooms Regional Conference is on July 6–7, 2026 in Moncton, NB. An exciting opportunity for math teachers to learn more about fostering student thinking, collaboration, and problem-sovling. #ITeachMath #btcthinks @btcthinks.bsky.social
Building Thinking Classrooms regional conference July 6-7, 2026 in Moncton, NB.
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Fawn Nguyen @fawnnguyen.substack.com · 04/05/2026
Hey teachers! I appreciate you this week and every week. New post: No Prerequisites fawnnguyen.substack.com/p/no-prerequ...
fawnnguyen.substack.com
No Prerequisites
Two problems worth posing to every student in the room
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Robert Kaplinsky @robertkaplinsky.com · 25/04/2026
I love how effectively James Tanton takes down five of the most common objections to using the area model to conceptually teach multiplication. Check out his 9-minute video where he helps make sense of the madness. www.youtube.com/watch?v=Sfi...
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Robert Kaplinsky @robertkaplinsky.com · 22/04/2026
I have over 70 real world problem-based lessons from kindergarten through high school that you can download for free and use with your students. Check them out and let me know which are your favorites in the comments. robertkaplinsky.com/lessons
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Nova Katz @novakatz.bsky.social · 18/04/2026
Know a school in Europe looking to Build some Thinking Classrooms? Know a teacher in Europe who's read the BTC book and is hungry for more? Are YOU in Europe and ready to join me!? I'll be in Dusseldorf June 8-9. Details below!
drive.google.com
ISD x BTC 2026 Flyer.pdf
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JoAnn Sandford @jsandford.bsky.social · 11/04/2026
Check out my latest newsletter! This one is about working with ratios. I hope you like it! Here's the link: drive.google.com/file/d/1X3ZV... #iteachmath
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Nova Katz @novakatz.bsky.social · 11/04/2026
Coaches!! Are you getting Peter’s newsletter? Check out this video to ensure you’re supporting teachers who are making the switch to a Thinking Classroom!
m.youtube.com
What Teachers Need from Admin and Coaches to Build Thinking Classrooms
In Part 2 of this session, Peter Liljedahl shares findings from his research on how administrators and instructional coaches can support teachers in implementing Building Thinking Classrooms. A key…
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Reposted by Kirk Keating
Grassroots Workshops @grassrootsworkshops.com · 05/04/2026
Build your own Thinking Classroom using 14 research-based practices that empower students to collaborate, persevere, and think deeply and critically. Learn more about Peter Liljedahl's Building Thinking Classrooms online workshop at grassrootsworkshops.com/wor...
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Robert Kaplinsky @robertkaplinsky.com · 30/03/2026
Most theme park rides have height restrictions. Sometimes you have to be taller, sometimes shorter, and sometimes in between two heights. These restrictions are a great way to introduce the idea of inequalities such as greater than and less than. robertkaplinsky.com/work/ri...
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Howie Hua @howiehua.bsky.social · 24/03/2026
A quick way to check if a number is divisible by 11
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Nova Katz @novakatz.bsky.social · 22/03/2026
This would be an awesome task to thin slice for productive practice with perimeter with Grades 3 & 4 @GoodQuestionstoAskInMathClass Basic: Same size area, stacked evenly Intermediate: Same size area, stacked like bricks (as shown) Advanced: 2 sizes of area, stacked evenly or like bricks Thoughts?
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Robert Kaplinsky @robertkaplinsky.com · 12/03/2026
If you're a presenter, you'll want to read this short post about how to avoid sounding like you say the same thing every time. robertkaplinsky.com/present...
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Shelby Strong 💗💜💙 @sneffleupagus.bsky.social · 03/03/2026
You know you want to spend the day with me and Jenna, or with Dave and Amy!
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Jenna Laib @jennalaib.bsky.social · 03/03/2026
🚨 Math Ed friends in MA! ATMIM is hosting a professional learning event on March 19. There are two pathways, each with two half-day workshops K-6: @sneffleupagus.bsky.social & me 5-12: @amyschang.bsky.social & @davidporas.bsky.social Come join us! atmim.wildapricot.org/event-6549529
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Kirk Keating @ksquaredmathns.bsky.social · 26/02/2026
Check out new the BTC Moncton Regional Conference site. join us in July for two full days of learning with @peterliljedahl.bsky.social btcmoncton26.netlify.app #btcmoncton26
btcmoncton26.netlify.app
BTC Moncton 26
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Howie Hua @howiehua.bsky.social · 19/02/2026
Hot take: We need to stop racing to the final answer in math class. If we only teach the procedure to get the answer, we would get so many false positives. Yeah, they got the right answer, but do they actually understand the math?
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Kirk Keating @ksquaredmathns.bsky.social · 13/02/2026
Join us in Moncton, NB for the Building Thinking Classrooms Regional Conference on July 6–7, 2026 🧠 REGISTRATION is NOW OPEN! 🎟️ Get your ticket here: buytickets.at/btcregionalc... @btcthinks.bsky.social @peterliljedahl.bsky.social
buytickets.at
Select tickets – Building Thinking Classrooms Regional Conference - Moncton 2026 – Harrison Trimble High School
Building Thinking Classrooms Regional Conference - Moncton 2026 – Harrison Trimble High School, Mon 6 Jul 2026 - Tue 7 Jul 2026
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Reposted by Kirk Keating
Grassroots Workshops @grassrootsworkshops.com · 07/02/2026
Build your own Thinking Classroom using 14 research-based practices that empower students to collaborate, persevere, and think deeply and critically. Learn more about Peter Liljedahl's Building Thinking Classrooms online workshop at grassrootsworkshops.com/wor...
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Grassroots Workshops @grassrootsworkshops.com · 30/01/2026
Want to build your own Thinking Classroom using 14 research-based practices that empower students to collaborate, persevere, and think deeply and critically? Register for Peter Liljedahl's Building Thinking Classrooms online workshop by Fri 2/6. grassrootsworkshops.com/wor...
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Grassroots Workshops @grassrootsworkshops.com · 25/01/2026
Secondary math teachers, come learn how to use visual patterns to help students describe functions using numbers, pictures, symbols, and words. Learn more about Fawn Nguyen's @fawnnguyen.substack.com How To Use Visual Patterns online workshop at grassrootsworkshops.com/wor...
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Kirk Keating @ksquaredmathns.bsky.social · 21/01/2026
Registration opens Friday @btcthinks.bsky.social @grassrootsworkshops.com @peterliljedahl.bsky.social Join us and engage in the self paced 6 module workshop. grassrootsworkshops.com/workshops/bu...
grassrootsworkshops.com
Building Thinking Classrooms ® - Grassroots Workshops
Build your own Thinking Classroom using 14 research-based practices that empower students to collaborate, persevere, and think deeply and critically.
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Reposted by Kirk Keating
Erick Lee @theericklee.bsky.social · 15/01/2026
Had a wonderful evening at MoMath for the 2025 Rosenthal Prize presentation. It was great to meet everyone and to chat about the intersection of math, magic and music. @momath.bsky.social
Museum of Mathematics in New York City.Rosenthal prize winners for 2025
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Robert Kaplinsky @robertkaplinsky.com · 11/01/2026
I had the opportunity of a lifetime to work in Barcelona, Spain where I taught 6th graders and presented to educators in Spanish about Open Middle. It was even covered in a newspaper! I am so grateful for this amazing opportunity.
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JoAnn Sandford @jsandford.bsky.social · 07/01/2026
Click on the link below to check out my latest newsletter: drive.google.com/file/d/1MHZp... Hope you like it! #iteachmath
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Reposted by Kirk Keating
Grassroots Workshops @grassrootsworkshops.com · 16/12/2025
Build your own Thinking Classroom using 14 research-based practices that empower students to collaborate, persevere, and think deeply and critically. Learn more about Peter Liljedahl's Building Thinking Classrooms online workshop at grassrootsworkshops.com/wor...
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Robert Kaplinsky @robertkaplinsky.com · 11/12/2025
How do we find a balance between being in the classroom with students and our need to keep growing as professionals? Here's my take inspired by the Seven Habits of Highly Effective People. robertkaplinsky.com/sharpen...
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Robert Kaplinsky @robertkaplinsky.com · 06/12/2025
Check out fractiontalks.com/ from Nat Banting for fun images that get students reasoning about fractions. They're all free and ready for you to use.
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TODOS: Mathematics for ALL @todos-math.bsky.social · 02/12/2025
Join us Dec 2 @ 4PM PST as HS math teachers Monorasmey Arun, Ed Schneider, Yuliana Segura & Megan Wood share their work w/ Evidence Based Grading-its philosophy, equity focus, & how it’s used in Alg, Geo & AP Stats #MathEquity #TODOSLive #iTeachMath #EduSky Register👇 us02web.zoom.us/webinar/regi...
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Jason To | 杜澤信 @mrjasonto.com · 15/11/2025
Check out the latest episode of the @thinkthankthunk.ca podcast to hear me rant about inquiry-based vs. explicit instruction and how they fit: thinkthankthunk.ca/ep-27/ or wherever you get your pods.
thinkthankthunk.ca
Ep 27 - Jason To - Think Thank Thunk
Jason To joins Kyle to bridge the gap between cognitive science and Thinking Classrooms. Learn how cognitive load and collective memory may help explain why Building Thinking Classrooms works.
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BTCthinks.bsky.social @btcthinks.bsky.social · 03/11/2025
Celebrating 5 yrs since Building Thinking Classrooms in Mathematics, Grades K-12 was published! 🌍 The book has sparked a movement, been translated into 15 languages & inspired classrooms everywhere. Here’s to curious minds, thinking deeply and bravely! #btcthinks #iteachmath
There are four book covers with the largest reading, "Building Thinking Classrooms in Mathematics, Grades K-12." The other three are translations of the cover in French, Spanish and German. Text around the book covers reads, "Celebrating 5 Years since publication" and "Translated into 15 languages." In the bottom left corner, the text reads, "Let's keep building thinking classrooms together!"
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Robert Kaplinsky @robertkaplinsky.com · 31/10/2025
This lesson uses a time lapse thermometer video as a context for discussing integer operations and absolute value. The video should provide some added meaning to the classic temperature drop problem. robertkaplinsky.com/work/te...
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Robert Kaplinsky @robertkaplinsky.com · 30/10/2025
Want to challenge your Geometry students to find the area of triangles? Try out this Open Middle problem from Dan Wulf. www.openmiddle.com/area-of-...
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Mike Flynn @mikeflynn55.bsky.social · 29/10/2025
Avoid this phrase if you don’t want to stigmatize the use of manipulatives in your math class. #math #teaching #btc
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David Poras @davidporas.bsky.social · 26/10/2025
Interested in learning more about the FREE Polypad Virtual Manipulatives from @amplifyeducation.bsky.social? Sign up for the next Polypad webinar on Nov 5th at 7 PM ET. Even if you can’t make it, sign up to receive a link to the recording. tinyurl.com/5fb4m48z
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BTCthinks.bsky.social @btcthinks.bsky.social · 27/10/2025
Mathematics Tasks for the Thinking Classroom (6-12), @pgliljedahl.bsky.social & @webbkyle.bsky.social's new book, is shipping globally! ✅ 20 Non-Curricular Tasks ✅ 30 Curricular Tasks ✅ Tips for moving from page to practice Get discounts here: linktr.ee/btcthinks #thinkingclassrooms #btcthinks
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Dwayne Slobodnick @mrslobodnick.bsky.social · 24/10/2025
The morning sessions on #RichMathTasks at #NSMTA2025 went great. Wonderful participation from everyone!
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Kirk Keating @ksquaredmathns.bsky.social · 24/10/2025
Math is figureoutable with @pwharris.bsky.social. lots of additive & multiplicative reasoning through problem strings to help us construct strategies, models, and concepts. @nsmta.bsky.social #NSMTA2025
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Dwayne Slobodnick @mrslobodnick.bsky.social · 24/10/2025
Looking forward to presenting tomorrow on #MathRichTasks at #NSMTA2025.
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Nova Scotia Math Teachers Assn @nsmta.bsky.social · 24/10/2025
Kelly Power, presenting on Creating Leveled Assessments at #NSMTA2025.
Kelly Power at MTA Conference.
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Nova Scotia Math Teachers Assn @nsmta.bsky.social · 24/10/2025
Tomorrow is the day! The #NSMTA2025 conference will bring together 800 mathematics teachers from across Nova Scotia. A great day to connect, learn and share. #ITeachMath
MTA Conference is Friday, Oct. 24th, 2025
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Robert Kaplinsky @robertkaplinsky.com · 23/10/2025
Have you seen #ObserveMe but want to learn more? Check out these links: What it is: robertkaplinsky.com/observeme Ignite talk on it: robertkaplinsky.com/observe... Interviews with teachers: robertkaplinsky.com/tag/obs... Pro tips: robertkaplinsky.com/trouble...
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Robert Kaplinsky @robertkaplinsky.com · 20/10/2025
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...
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DavidPetro314 @davidpetro314.bsky.social · 19/10/2025
[New Post] Ontario Math Links - My favourite #math related links from this week: ontariomath.blogspot.com/2025/10/math... Links and help from @howiehua.bsky.social @looneymath.bsky.social @mnmmath.bsky.social @abeljennifer.bsky.social @benjamindickman.bsky.social &more #MathChat #MTBoS #iTeachMath
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Kyle Webb @webbkyle.bsky.social · 19/10/2025
After watching our book ship worldwide, my own copies finally landed. Surreal to say the least! So excited about what @pgliljedahl.bsky.social and I created, and even moreso to get this into the hands of teachers! #buildingthinkingclassrooms @btcthinks.bsky.social
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