Courtney Flessner
@cfless.bsky.social
340 followers 290 following 120 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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cfless.bsky.social
👋One of the absolute best nights of my life. What an experience to have had the privilege to be a part of this concert!
dmbofficial.bsky.social
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
Reposted by Courtney Flessner
edutopia.org
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
cfless.bsky.social
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!
cfless.bsky.social
I love how when I show teachers a photo like this they ask, “How many can you see or how many are there? Are we counting the total or how many of each?”etc. When I don’t have a straight answer, and they find themselves counting both ways, I get - “I see what you did there.” 💚 images like this one.
cfless.bsky.social
Isn’t a s’more all about the melty marshmallow? When in a bind for cash I suppose you can still get the flavor from raw…
cfless.bsky.social
@annieforest.bsky.social your engagement here is amazing. Please hold while I go simple and char my marshmallow and grab a graham cracker and Hershey’s!
Reposted by Courtney Flessner
ryanflessner.bsky.social
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!
cfless.bsky.social
It was so great to meet you in real life!
cfless.bsky.social
I loved doing this session! So many great participants, fantastic engagement, and thoughtful questions!
novakatz.bsky.social
@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
cfless.bsky.social
Love these pics! Thank you! And yes! Greatest hype man around!
cfless.bsky.social
I feel like everyone is actually smiling in the background for that pic! I love it!
Reposted by Courtney Flessner
ryanflessner.bsky.social
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.
cfless.bsky.social
@ryanflessner.bsky.social is a great leader of my hype squad!
ryanflessner.bsky.social
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!
Court prepping her slides as people file in for her session. Eleven rows of tables with eight chairs each. All seats are full, and people are standing along the walls.
Reposted by Courtney Flessner
ryanflessner.bsky.social
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!
Reposted by Courtney Flessner
novakatz.bsky.social
#BTCC25 it’s getting started with some energy!!! Thanks to our Emcees @cfless.bsky.social @ryanflessner.bsky.social !!!
cfless.bsky.social
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.
debatemath.bsky.social
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!
Reposted by Courtney Flessner
annieforest.bsky.social
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.
Reposted by Courtney Flessner
annieforest.bsky.social
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.
Reposted by Courtney Flessner
ryanflessner.bsky.social
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?”
Reposted by Courtney Flessner
ryanflessner.bsky.social
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.
Reposted by Courtney Flessner
jennifer-lempp.bsky.social
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 Courtney With Ryan With Annie With Amy, Steve, and Bert
Reposted by Courtney Flessner
Reposted by Courtney Flessner
Reposted by Courtney Flessner
ryanflessner.bsky.social
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.