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Courtney Flessner

@cfless.bsky.social
373 followers 297 following 140 posts

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.

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Courtney Flessner @cfless.bsky.social · 16/02/2026
Have you listened yet? You should and join the conversation! Thank you @robertkaplinsky.com for engaging with me and @cluzniak.bsky.social and @rob-baier.bsky.social for having the platform for such good conversations!
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Annie Fetter @mfannie.bsky.social · 24/01/2026
Ultra excited to a) reboot the Math Routine Collaborative, and b) partner with @cfless.bsky.social to create an accompanying podcast. Check it out! #ITeachMath
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Courtney Flessner @cfless.bsky.social · 20/01/2026
Calling all educators! Speaking at #KINLCon is such a rewarding way to grow professionally and give back to the education community. I’d love to see your session on the schedule this year! 🌟 Propose now to speak: KeepIndianaLearing.org/KINLCon
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Shelby Strong 💗💜💙 @sneffleupagus.bsky.social · 18/01/2026
HI HI THIS IS TODAY If you're not busy at 4:00 ET, you should come hang out and do math with us! Register here: strongermath.com/mrc
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Courtney Flessner @cfless.bsky.social · 09/01/2026
Join us! These are topics ALL educators need to know more about! I can hardly wait!
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Pam Brett - Blue Glasses Math Podcast @pambrett.bsky.social · 15/12/2025
This clip marks a turning point—recognizing that when students don’t understand something, the reflection starts with me 🪞. What moment pushed your practice forward? 🚀 #MathTalk #MathEducation #EdChat #GrowthMindset
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Pam Brett - Blue Glasses Math Podcast @pambrett.bsky.social · 17/12/2025
Asking kids what they think about math opened up a whole new world 🌍➗. Their ideas guide our work more than any textbook can. What’s your favorite prompt to uncover student thinking? 💡 🎧 shorturl.at/IdrbJ 👀 youtu.be/3Sznsbytk5E #MathChat #MathEducation #EdTech
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Liesl McConchie @lieslmcconchie.bsky.social · 13/12/2025
Courtney Flessner is an incredible podcaster (is that a word?)! Such great questions led to an amazing conversation. I learned so much throughout the conversation. Highly recommend giving it a listen.
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Rachel Lambert, prof at UCSB, teacher! @mathematize4all.bsky.social · 08/12/2025
A great roundup by Edutopia on 10 best ed research pieces in the last year. Why helping can be counterproductive, another approach to math word problems, a study of practice-based pre-service education with implications for PD in mathematics, and MORE #MTBOS #LearningSciences4ever
edutopia.org
The 10 Most Significant Education Studies of 2025
We’re back with our roundup of the most insightful studies of the year, from the power of brain breaks to groundbreaking research on AI, cell phones, and handwriting in the classroom.
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Courtney Flessner @cfless.bsky.social · 06/12/2025
Another AMAZING episode is out of Math and Other Things and I just really hope lots of educators get a chance to hear from the amazing @lieslmcconchie.bsky.social! podcasts.apple.com/us/podcast/m...
podcasts.apple.com
Why Math Identity Matters with Liesl McConchie
Podcast Episode · Math and Other Things · 12/05/2025 · 1h 9m
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Courtney Flessner @cfless.bsky.social · 14/11/2025
A1: B and C both have dots. Although I suppose that me could argue so does D but not 4 of them… #elemmathchat
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Courtney Flessner @cfless.bsky.social · 14/11/2025
Courtney from Indianapolis, IN. You coming to NCTM here in February? Can’t wait to see you! #elemmathchat
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Courtney Flessner @cfless.bsky.social · 14/11/2025
A1: C! Triangle pose is my favorite pose. Feels so good every time. Hold on. I’m going to go do one now. #elemmathchat
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Courtney Flessner @cfless.bsky.social · 06/11/2025
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...
podcasts.apple.com
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...
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Melynee Naegele @mnmmath.bsky.social · 12/10/2025
🎲✨ 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
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Courtney Flessner @cfless.bsky.social · 25/09/2025
👋One of the absolute best nights of my life. What an experience to have had the privilege to be a part of this concert!
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Edutopia @edutopia.org · 21/09/2025
By revealing graphs piece by piece, teachers can build student curiosity and guide them to more effectively make sense of data! 📊 #DataLiteracy #EduSky #MathSky
edut.to
The Power of Slow Reveal Graphs
Teachers can leverage students’ curiosity to explore visual representations of data in an engaging way.
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Courtney Flessner @cfless.bsky.social · 27/08/2025
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!
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Ryan Flessner @ryanflessner.bsky.social · 07/07/2025
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?!
A photo of an email from the National Council of Teachers of Mathematics reminding everyone that proposals are due in one week: Monday, July 14!
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Courtney Flessner @cfless.bsky.social · 03/07/2025
I loved doing this session! So many great participants, fantastic engagement, and thoughtful questions!
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Ryan Flessner @ryanflessner.bsky.social · 30/06/2025
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!
Court and me emceeing the opening session at the Building Thinking Classrooms Conference. Ryan and Courtney with Dr. Pam Seda after her keynote at the opening session. A wonderful crowd of BTCC attendees is in the background.
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Courtney Flessner @cfless.bsky.social · 01/07/2025
@ryanflessner.bsky.social is a great leader of my hype squad!
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Ryan Flessner @ryanflessner.bsky.social · 30/06/2025
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
Ryan and Courtney with Nolan Fossum. I finally met him in person! Laura Tomas collaborating with Courtney to teach me how to take a GOOD selfie. 🤣Ryan and Courtney with Nova Katz after the Opening Keynote. Day one is off and running!Ryan and Courtney with Jeff Harker. Indiana in the house!
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Nova Katz @novakatz.bsky.social · 30/06/2025
#BTCC25 it’s getting started with some energy!!! Thanks to our Emcees @cfless.bsky.social @ryanflessner.bsky.social !!!
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Courtney Flessner @cfless.bsky.social · 28/06/2025
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.
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Annie Forest @annieforest.bsky.social · 25/06/2025
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
Kristen Acosta putting cards on a clothesline to represent a number line.
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Annie Forest @annieforest.bsky.social · 25/06/2025
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
Jennifer Lempp presenting at KINLCon about math workshop. The screen shows 3 different ways to structure a math block.
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Ryan Flessner @ryanflessner.bsky.social · 25/06/2025
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!
Kristen Acosta strikes a pose in front of a picture of M&Ms labeled “How Many?”
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Ryan Flessner @ryanflessner.bsky.social · 24/06/2025
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
Ryan with Jennifer Lempp. Check out her Math Workshop books!Ryan with Kelsey Kacz from EM2.Ryan and others with Annie Forest after her amazing session on classroom routines. Adults collaborating while discussing strengths, next steps, and teacher moves related to student work samples.
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Jennifer Lempp @jennifer-lempp.bsky.social · 25/06/2025
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
With CourtneyWith RyanWith AnnieWith Amy, Steve, and Bert
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Ryan Flessner @ryanflessner.bsky.social · 17/06/2025
What a fun first day a #LitMath25. Thank you @nctm.org and @ncte.org for hosting! (Post 1 of 2 - Monday morning!) @cfless.bsky.social @themathguru.bsky.social @mnmmath.bsky.social @jlmilleric.bsky.social @drnickinewton.bsky.social @tjmath.bsky.social @nankinator.bsky.social @moniquepollitt
Ryan and Courtney with Vanessa Vakharia.Ryan and Courtney with Monique Pollitt.A photo of friends at the NCTE/NCTM conference in Chicago.
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Ryan Flessner @ryanflessner.bsky.social · 17/06/2025
Post 2 of 2 - Monday afternoon at #LitMath25 @deborahpeartcrayton @rob-baier.bsky.social @triangleman.bsky.social @zakchamp.bsky.social @cfless.bsky.social @howiehua.bsky.social
Ryan with Deborah Peart Crayton and Rob Baier.Ryan with Christopher Danielson. Ryan with Zak Champagne. Ryan and Courtney with Howie Hua.
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Ryan Flessner @ryanflessner.bsky.social · 17/06/2025
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
Ryan and Courtney with Todd Agee of Indianapolis Public Schools. Ryan with Mike Wallus and Shanel Parette of the Math Learning Center. Ryan with Nicole Rigelman. Ryan with Jessica Miller.
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Ryan Flessner @ryanflessner.bsky.social · 18/06/2025
Ending the second day of #LitMath25 with some of the best Mathers around! @jennifer-lempp.bsky.social @cfless.bsky.social @annieforest.bsky.social @drnickinewton.bsky.social @talknumber2me.bsky.social @mnmmath.bsky.social @rob-baier.bsky.social @mfannie.bsky.social @marriacarrington (1/2)
A group of several math educators outside a restaurant in Chicago.
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Melynee Naegele @mnmmath.bsky.social · 18/06/2025
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!
Courtney holding a mentor text Courtney and Ryan connecting with participants Courtney, Melynee and Ryan
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Courtney Flessner @cfless.bsky.social · 28/04/2025
#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!
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Courtney Flessner @cfless.bsky.social · 28/04/2025
#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!
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Courtney Flessner @cfless.bsky.social · 17/04/2025
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!
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Courtney Flessner @cfless.bsky.social · 17/04/2025
@ryanflessner.bsky.social and I had a blast with @cluzniak.bsky.social and @rob-baier.bsky.social on the @debatemath.bsky.social podcast. Check it out! Apple Podcasts: podcasts.apple.com/us/podcast/d... Spotify: open.spotify.com/show/3soGg9I... YouTube Channel: www.youtube.com/channel/UCjk...
podcasts.apple.com
DebateMath Podcast
Education Podcast · Updated Monthly · Bringing together educators with opposing viewpoints to have a discussion and explore the arguments
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Keep Indiana Learning @keepinlearning.bsky.social · 18/03/2025
🎂 5 years of learning together! 🎂 To every educator who's opened their Professional Learning Communities to us – thank you! We've cherished every moment of shared growth across Indiana & beyond.
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Keep Indiana Learning @keepinlearning.bsky.social · 16/03/2025
🎂 Happy 5th Birthday to us! 🎂 We couldn't have reached this milestone without YOU! We'll be rolling out some fun things this coming week, so stay tuned!
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Keep Indiana Learning @keepinlearning.bsky.social · 17/03/2025
🎂 Happy 5th Birthday to us! 🎂 We're celebrating 5 years of investing in educators to impact student learning. To our past & present team – your vision & dedication made it possible! #EduSky
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Courtney Flessner @cfless.bsky.social · 14/03/2025
Today a teacher literally FaceTimed her instructional coach back at her building she was so delighted at how much sense she was making of the math she was doing. We just have to give them time. And a chance. There is a lot of joy in doing math when we’re teaching and learning it the right way.
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Courtney Flessner @cfless.bsky.social · 28/02/2025
The amazing team @keepinlearning.bsky.social spent the day reviewing the incredible proposals for our first ever KINLCon. This is going to be an incredible conference for teachers, admin, instructional coaches, and counselors in K-12 buildings. Sign up now! keepindianalearning.org/events/kinlc...
keepindianalearning.org
KINLCon 2025
[vc_single_image image='17112'
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Keep Indiana Learning @keepinlearning.bsky.social · 01/02/2025
🌍 Collaboration, leadership, & professional growth await you at #KINLCon! 🌍We are now accepting presenter proposals! We'd love to hear from creative & innovative educators! ✨ Inspire others & be inspired! ✨ Learn more: KeepIndianaLearning.org/KINLCon #KINLCon #EduSky
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Courtney Flessner @cfless.bsky.social · 01/02/2025
If we don’t believe they can, they won’t. Students, teachers, administrators, schools…believe they all can, and they will.
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Courtney Flessner @cfless.bsky.social · 27/01/2025
I have the distinct joy of having a lot of incredible thought partners in my career. @ryanflessner.bsky.social, I’m glad you were the original.
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Courtney Flessner @cfless.bsky.social · 27/01/2025
At #ICTM25, I was thinking about the question posed about why do you love math? I think my answer is the teaching and learning of math continues to reignite my passion for education. There are many obstacles to muddle through. 97% of the time, the messiness keeps things interesting!
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Courtney Flessner @cfless.bsky.social · 27/01/2025
Watching the collaboration and a-has as participants engaged in thoughtful mathematics in my sessions at #ICTM25 is why I love the work I do. So incredibly grateful for educators who devote time to learning. Your students are just so lucky.
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Courtney Flessner @cfless.bsky.social · 27/01/2025
#ICTM25 was a great weekend full of lots of learning and laughs. @ryanflessner.bsky.social and I had a great time as emcees. Special thanks to our 4 awesome keynotes @robertkaplinsky.com, @drindiagrit.bsky.social, @kimrimbey.bsky.social, and @howiehua.bsky.social for indulging us in stage selfies!
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