On vehicles and the meanings of words | Talking Math With Your Kids The following is an extended excerpt of a cover letter for Is It a Vehicle?, a book I have play-tested many hundreds of times in a wide range of situations over the last five-plus years and not yet fo...

New #tmwyk!

If you've been following #vehiclechat (or if you've been puzzled by it), here's some more depth and background.

talkingmathwithkids.com/blog/on-vehi...

Inputs and Outputs I recently returned from NCTM in Atlanta. It was a beautiful week of learning and connection (and late night karaoke -- priorities). "Let's See What You're Saying." On Friday, I attended a session with Grace Kelemanik and Amy Lucenta entitled "Engage all students in mathematical ideas and processes by planning from the margins in." (It was predictably brilliant; I love…

New Blog Post:
Inputs & Outputs

Reflecting on a session with Amy Lucenta and Grace Kelemanik at NCTM 2025, examining areas of cognition and micro-routines for engagement of all students.

Lovely collection of Same & Different prompts for high school from @karencampe.bsky.social!

The Power of Slow Reveal Graphs Teachers can leverage students’ curiosity to explore visual representations of data in an engaging way.

By revealing graphs piece by piece, teachers can build student curiosity and guide them to more effectively make sense of data! 📊

#DataLiteracy #EduSky #MathSky

Don't forget about the 100+ free challenging tasks for secondary math teachers at www.map.mathshell.org/lesso... There are around 20 per grade level.

@camatsumoto10.bsky.social

My Attempts at Estimation 180 tasks - YouTube Andrew estimates tasks that he has not seen in years.

I'm having a blast revisiting Estimation 180 tasks.
My next attempt: Cheeseballs day 207. www.youtube.com/playlist?lis...

If you missed 206...it's there too. #estimation180 #iteachmath #mtbos

@camatsumoto10.bsky.social

🚨Attention #Algebra Ts, are you looking for ideas to review for a final exam❓🤔Check out this @geogebra.org collection of resources: interactive, engaging, and great for #MathPlay 🧮

🔗👇
www.geogebra.org/m/bmyse2ca

#MTBoS #ITeachMath #MathSky #MathsToday #STEM #ElemMathChat #EdTech #EdChat #EduSky

New lesson added to our free lesson library!

__The Tax Collector__

This is an expanded writeup of my original @nytimes.com Numberplay writeup from 2015. Features a tie-in to my more recent @ted-ed.bsky.social riddle too!

Great for grades 4 - 10.

mathforlove.com/lesson/tax-c...

Did the Dog vs People Names scatter plot today with a room full of k-12 computer science teachers, and WOW, the discussion we had! 🤓 #slowrevealgraphs

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...

A Great Day of Teaching—and a New Home for the Blog Hey friends,

Happy Friday, everyone! Same old me, but my blog has a new home:
fawnnguyen.substack.com/p/new-blog-h...

Please come by to visit when you have a moment!
#MTBoS #iteachmath

[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

same parabola

Dynamic window size in @desmos.com means that we only need 1 parabola now! Hooray!

www.desmos.com/calculator/z...

Craig Berube speaks to the media after the Leafs were eliminated from the 2025 Stanley Cup playoffs in front of a sign that reads "No Grit. No Grind. No Greatness." which is meant to be inspirational but instead is the most on-point thing ever written.

Canucks have made marketing misstep after marketing misstep over the past decade...but never done anything like this

Register by May 4 spring.ourconference.events

Join me for "Multiplication: More Than Repeated Addition and Times Tables" at the 2025 @mypita.bsky.social Spring Conference in Squamish on May 9!

Can you solve the puzzle? What goes in each blank of the area model? A 2 row by 3 column array is shown. To the left of the array, a 2x is shown in row 1 and a 3 is shown in row 2. A 10x^3 is shown in the 1st row, 1st column cell. The rest of the cells and the 3 spaces above the first row all have question marks. Under the array, the total area is given as 10x^3 + 23x^2 – 4x – 24.

Launch for tomorrow's polynomial division lesson. #iteachmath #MTBoS

With CBC now having called all ridings it's time for the land-vs-people-vote animation.

This year, I joined NCSS (social studies) as part of my registration for their national conference. (I presented about slow reveal graphs!) Today, their journal arrived.

What a beautiful surprise to see an article from fellow math educator/SS enthusiast @mathillustrated.bsky.social! 🤩

I'm not crying, you're crying.

chrishunter.ca/2017/11/05/o...

The Gr8 Chase Is Over! www.desmos.com/calculator/t...

(From 5 years ago… chrishunter.ca/2021/10/08/o...)

#MTBoS #iTeachMath

My favourite burn was when I was wearing a shirt with wide horizontal burgundy/light grey stripes. Kid announced “Hey guys, stop looking. I found him. Waldo.”

Cha-Ching!

Your outie makes art...in Desmos.
#severance #lumon #mathsky

This is a nice problem for students to think about!

The picture shows the word power with subscript 2 of 8 equals 3 and power with subscript 5 of 25 equals 2, followed by nine more without the value for students to figure out.

#MathsToday
Today was day 1 of logarithms in #MHF4U so I presented students with this, inspired by James Tanton.

Three square pans full of unbaked dark fruitcake, one large,one medium, and one small are sitting on a brown kitchen chair.

Made fruitcake from an old recipe that makes one large (8x8), one medium (6x6) and one small (4x4) cake.

How would you turn this into a math problem?

#mtbos #iteachmath