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ksquaredmathns.bsky.social
Kirk Keating
@ksquaredmathns.bsky.social
95 followers 100 following 6 posts
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Reposted by Kirk Keating
btcthinks.bsky.social
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!"
November 3, 2025 at 11:39 AM
Reposted by Kirk Keating
robertkaplinsky.com
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...
October 31, 2025 at 7:07 PM
Reposted by Kirk Keating
robertkaplinsky.com
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-...
October 30, 2025 at 12:10 AM
Reposted by Kirk Keating
mikeflynn55.bsky.social
Avoid this phrase if you don’t want to stigmatize the use of manipulatives in your math class. #math #teaching #btc
October 29, 2025 at 9:21 AM
Reposted by Kirk Keating
davidporas.bsky.social
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
October 26, 2025 at 8:51 PM
Reposted by Kirk Keating
btcthinks.bsky.social
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
October 27, 2025 at 1:35 AM
Reposted by Kirk Keating
mrslobodnick.bsky.social
The morning sessions on #RichMathTasks at #NSMTA2025 went great. Wonderful participation from everyone!
October 24, 2025 at 4:09 PM
ksquaredmathns.bsky.social
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
October 24, 2025 at 2:05 PM
Reposted by Kirk Keating
mrslobodnick.bsky.social
Looking forward to presenting tomorrow on #MathRichTasks at #NSMTA2025.
October 23, 2025 at 11:39 PM
Reposted by Kirk Keating
nsmta.bsky.social
Kelly Power, presenting on Creating Leveled Assessments at #NSMTA2025.
Kelly Power at MTA Conference.
October 24, 2025 at 1:52 PM
Reposted by Kirk Keating
nsmta.bsky.social
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
October 23, 2025 at 11:21 PM
Reposted by Kirk Keating
robertkaplinsky.com
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...
October 23, 2025 at 10:34 PM
Reposted by Kirk Keating
robertkaplinsky.com
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...
October 20, 2025 at 10:33 PM
Reposted by Kirk Keating
davidpetro314.bsky.social
[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
October 19, 2025 at 6:38 PM
Reposted by Kirk Keating
webbkyle.bsky.social
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
October 19, 2025 at 10:28 PM
Reposted by Kirk Keating
kurt-salisbury.bsky.social
✈️ Heading to NCTM?
I’m honored to be presenting again this year!
📅 Thursday, 2:30 PM
🎯 Session Title: Early Algebraic Thinking with Desmos Classroom
Here’s a short preview of the ideas we’ll discuss:
kurtsalisbury.substack.com/p/when-does-...
#mtbos #math @amplifyeducation.bsky.social
🧩 When Does Algebraic Thinking Begin?
Thinking About “Algebra” Before Algebra
kurtsalisbury.substack.com
October 13, 2025 at 3:58 PM
Reposted by Kirk Keating
theericklee.bsky.social
Just submitted a session proposal for OAME 2026. Looking forward to this always fantastic conference. #ITeachMath
oamelearns.bsky.social OAME 2026 Annual Conference @oamelearns.bsky.social · Sep 20
Apply now to be a presenter at OAME 2026 - Let’s Talk Math. We are looking for diverse session proposals under the following themes:
Let’s talk equity
Let’s talk assessment
Let’s talk technology
Let’s talk content
Let’s talk pedagogy
We would love to have you!!!! bit.ly/callforproposals2026
October 12, 2025 at 6:13 PM
ksquaredmathns.bsky.social
Join us in Moncton NB for the 2026 Building Thinking Classrooms Regional Conference with @peterliljedahl.bsky.social @btcthinks.bsky.social July 6–7, 2026! 🧠📚
💡 Discover practical strategies to spark deep thinking in your classroom
📩 Sign up for updates: tinyurl.com/yc6cfbzk
October 12, 2025 at 12:34 PM
Reposted by Kirk Keating
fawnnguyen.substack.com
Look what arrived! Just when you thought the K-5 book was big, the 6-12 is even thicker!
I've been through it already and wow—peterliljedahl.bsky.social and @webbkyle.bsky.social really delivered. You want this. 🔥
October 10, 2025 at 8:32 PM
Reposted by Kirk Keating
howiehua.bsky.social
TODAY'S THE DAY! It's one of the coolest dates of our lifetime.

Whether you go by month/day/year or day/month/year, if we write the date as one number, we will get a square number! Both sides can agree that today's date is a square date.

9,272,025=3045²
27,092,025=5205²
September 27, 2025 at 7:11 AM
Reposted by Kirk Keating
pamseda1.bsky.social
At NCTM 2025 Annual Meeting & Exposition, we’re showing how BTC & ICUCARE transform math for learners who’ve been left out.
📢Empowering Marginalized Learners in Mathematics
📅 Oct 18 | 8 AM | Georgia World Congress Center
With Dr. Peter Liljedahl
🔗 www.nctm.org/atlanta2025/...
#NCTM2025 #NCTMATL25
September 24, 2025 at 6:00 PM
Reposted by Kirk Keating
mathforlove.bsky.social
Proofing #SubtractionbyHeart! The new cards are looking lovely :-)
We should have these out by early 2026!
#iteachmath #mtbos
A box of flash cards called Subtraction by Heart
September 24, 2025 at 10:01 PM
Reposted by Kirk Keating
mburnsmath.bsky.social
I'm excited to present a free webinar on September 30. Register here: heinemann.zoom.us/webinar/regi...
September 23, 2025 at 10:07 PM
Reposted by Kirk Keating
howiehua.bsky.social
Did you know that we can visually see why sqrt(40)=2sqrt(10)? Let's see how we can visualize rewriting square roots!
September 21, 2025 at 2:08 PM
Reposted by Kirk Keating
btcthinks.bsky.social
🚨 Registration is OPEN for the Building Thinking Classrooms online workshop w/ @pgliljedahl.bsky.social via @grassrootsworkshops.com!

🧠 6 modules packed videos, strategies & real examples to get students collaborating & thinking deeply.

👉 Register by Oct 3

grassrootsworkshops.com/workshops/bu...
The image at the bottom shows Peter Liljedahl being video recorded. The top of the poster includes this text: "Grassroots Workshop" "Building Thinking Classrooms Online Workshop with Peter Liljedahl" Dates are October 6 to November 14, 2025. Also included in the text is 6 modules, 14 BTC practices and 16 PD Hours. The cost is described as 4 months access for $345 USD and 12 months access for $414 USD.
September 19, 2025 at 9:46 PM