Courtney Flessner
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cfless.bsky.social
Courtney Flessner
@cfless.bsky.social
Director at Keep Indiana Learning, enthusiastic math educator, and working to help instructional leaders create schools where teachers embrace teaching math ambitiously. Host of the Math and Other Things podcast. Be grateful and do good work.
The Math and Other Things podcast is back! I’m a big fan of the episodes (and people in them) that have dropped. Special thanks to @ryanflessner.bsky.social, @rob-baier.bsky.social, @cluzniak.bsky.social, and @themathguru.bsky.social for amazing conversations!

podcasts.apple.com/us/podcast/m...
Math and Other Things
Education Podcast · Updated Weekly · Join us as we explore math - and other things with educators and educational thought leaders. In my 28+ years of teaching, I've learned A LOT about teaching, leadi...
podcasts.apple.com
November 6, 2025 at 4:45 AM
Reposted by Courtney Flessner
🎲✨ NCTM Game Night 2025!✨🎲
Join us for math games, puzzles, raffle prizes & fellowship! Bring a friend & connect in a fun, relaxed setting.
📅 Wed Oct 15
🕕 8 PM
📍Omni Intl Ballroom E
🍸 Cash bar.
Play, laugh & celebrate math together! #MTBoS #ITeachMath #NCTMATL25! #GameNight #ElemMathChat
October 12, 2025 at 7:15 PM
👋One of the absolute best nights of my life. What an experience to have had the privilege to be a part of this concert!
On this day in 2003, DMB performed a historic concert at the Central Park in NYC. The show was later released as the now classic The Central Park Concert. Raise your 🖐 if you were you there! #DMBHistory
September 25, 2025 at 8:34 PM
Reposted by Courtney Flessner
By revealing graphs piece by piece, teachers can build student curiosity and guide them to more effectively make sense of data! 📊

#DataLiteracy #EduSky #MathSky
The Power of Slow Reveal Graphs
Teachers can leverage students’ curiosity to explore visual representations of data in an engaging way.
edut.to
September 21, 2025 at 2:34 AM
I was just in a first year teachers classroom and it was delightful to see that it didn’t look like Pinterest had thrown up in her room. The environment was all about the students and their work. I absolutely love this fact!
August 27, 2025 at 1:04 PM
Reposted by Courtney Flessner
Quick reminder to the #mtbos and #elemmathchat crews. Get those proposals in ASAP! Who’s joining @cfless.bsky.social and me in Indy for the @nctm.org Spring Conference in February?!
July 7, 2025 at 5:48 PM
I loved doing this session! So many great participants, fantastic engagement, and thoughtful questions!
@cfless.bsky.social Lighting up the room at #BTCC25 talking about getting fluency right in the thinking classroom!

My favorite part: her personal hype man! @ryanflessner.bsky.social
July 3, 2025 at 3:39 PM
Reposted by Courtney Flessner
Thanks to the #BTCC25 planning committee for trusting @cfless.bsky.social and me with microphones! It was amazing to emcee the opening session, to get everyone up and dancing, and to hear @pamseda1.bsky.social’s keynote. Can’t wait for tomorrow’s closing session!
June 30, 2025 at 9:15 PM
@ryanflessner.bsky.social is a great leader of my hype squad!
Ten minutes before @cfless.bsky.social’s #BTCC25 session and the room is packed. People are sitting on the floor, bringing in extra chairs, and finding spots to stand along the wall. Fact fluency is important, and Courtney Flessner is the real deal!
July 1, 2025 at 5:40 PM
Reposted by Courtney Flessner
It’s here! It’s finally here! #BTCC25 is off to a great start. Fun people, new friends, great energy. It’s everything we’ve come to expect from a BTC conference!
@cfless.bsky.social @nolanfossum.bsky.social
@iteachthewhy.bsky.social @novakatz.bsky.social @jharker314.bsky.social
June 30, 2025 at 4:40 PM
Reposted by Courtney Flessner
#BTCC25 it’s getting started with some energy!!! Thanks to our Emcees @cfless.bsky.social @ryanflessner.bsky.social !!!
June 30, 2025 at 2:57 PM
It will always baffle me why anyone would actually argue against this! A great listen for anyone who is a hater about cultivating math identity.
Our HOT SEATS are back!
First up: Should We Cultivate Math Identity??

Listen and subscribe on Apple Podcasts: podcasts.apple.com/us/podcast/d...
Or on Spotify:
open.spotify.com/show/3soGg9I...

Or check us out wherever you listen to podcasts!
June 28, 2025 at 2:29 PM
Reposted by Courtney Flessner
Elementary teachers loving learning about Clothesline Math from @kristenacosta.bsky.social at KINLCon!

It was new for everyone and they all seemed excited to give it a try! 🤩

@keepinlearning.bsky.social
June 25, 2025 at 6:43 PM
Reposted by Courtney Flessner
Appreciated learning about @jennifer-lempp.bsky.social’s ideas for ways to structure your time using math workshop. Having a few different structures gives teachers the ability to pick the one that matches the purpose/goals of the day!

@keepinlearning.bsky.social
June 25, 2025 at 8:29 PM
Reposted by Courtney Flessner
When @kristenacosta.bsky.social comes all the way from California to present at #KINLCon, you get into that room! And, she didn’t disappoint - thoughtful, humorous, and practical.

Thank you, Kristen, for making the trek. I’m grateful you came to Indiana, and I can’t wait to see you again soon!
June 25, 2025 at 9:37 PM
Reposted by Courtney Flessner
What a fantastic first day at #KINLCon! It was great to have a chance to present, reconnect with longtime friends, and learn alongside amazing educators. If you’re not here, get ready to sign up for next year!

@jennifer-lempp.bsky.social @annieforest.bsky.social
June 24, 2025 at 7:30 PM
Reposted by Courtney Flessner
Well, @keepinlearning.bsky.social held a great conference! Participants were amazing, & the conf well organized! Wonderful to see awesome math friends! Put #KINLCon on your calendar for next year! @heinemannpub.bsky.social @ryanflessner.bsky.social @cfless.bsky.social @annieforest.bsky.social
June 25, 2025 at 1:53 PM
Reposted by Courtney Flessner
June 17, 2025 at 2:01 AM
Reposted by Courtney Flessner
June 17, 2025 at 2:10 AM
Reposted by Courtney Flessner
Day 2 of @nctm.org and @ncte.org #LitMath25. It’s so fun to reconnect with colleagues and meet new friends. What an inspiring few days! @cfless.bsky.social @toddagee @mjwallus.bsky.social @shanelparette.bsky.social @nicolerigelman @jlmilleric.bsky.social
June 17, 2025 at 9:18 PM
Reposted by Courtney Flessner
June 18, 2025 at 1:54 AM
Reposted by Courtney Flessner
Another thing I REALLY love about conferences is learning about new to me ideas that are connected to or grow my teaching practices!! Thank you @cfless.bsky.social and @ryanflessner.bsky.social for bringing your Mentor Text session! The challenge to you still stands, WRITE THAT BOOK! Pretty please!
June 18, 2025 at 5:36 PM
#iteachmath #elemmathchat I’m crowdsourcing two things: 1) Digital intervention tools for math 2) Math pre-screeners. Potentially these two could work together. I know my answers to these questions but am super curious how others would respond in the math ed world. Thanks in advance!
April 28, 2025 at 2:03 PM
#iteachmath #elemmathchat I’m crowdsourcing two things: 1) Digital intervention tools for math 2) Math pre-screeners. Potentially these two could work together. I know my answers to these questions but am super curious how others would respond in the math ed world. Thanks in advance!
April 28, 2025 at 2:03 PM
I believe it was @lenadarnay.bsky.social and Ryan Murray, my colleagues from @keepinlearning.bsky.social who suggested we do the show. We talk about this topic often at our house and it’s particularly controversial for me, which you’ll understand if you listen!
New EPISODE! Should we compare teaching reading & math?

With @cfless.bsky.social & @ryanflessner.bsky.social

Listen and subscribe on Apple Podcasts: podcasts.apple.com/us/podcast/d...
Or listen on Spotify:
open.spotify.com/show/3soGg9I...
Or check us out wherever you listen to podcasts!
April 17, 2025 at 12:09 PM