Ryan Flessner

@ryanflessner.bsky.social

356 Followers 289 Following

Professor of Teacher Education at Butler University. My passions are math education, practitioner inquiry, and equitable and just schooling for all students. Opinions are my own.

Seven books: Millions of Snowflakes, A Million Fish…More or Less, One Grain of Tice, Sadako, Again, Essie?, Round is a Mooncake, One Leaf Rides the Wind.
The cover of the book Boot & Shoe by Marla Frazee.
Ryan with 14 of his ED316 students at the Goodwill Outlet.
A flyer that reads “I’m presenting! NCTM 2026 Annual Meeting & Exposition Denver, CO” On the flyer is a man with a beard who appears to be giving a speech.
A lime green square advertising registration for KINLCon this summer.
Butler students pose with James Whitcomb Riley School #43 staff members.
Courtney presenting for a room of district leaders from around Indiana.
Six Butler College of Education students standing with Ryan behind large block letters that spell NCTM.
A plate full of cookies and candies. The treats are arranged in a circular pattern.
Irregular shapes in carpet patterns.
Ryan and Courtney with Michael Deutsch.
Three large dinner tables full of the #mtbos crew.
Ryan at a dinner table at Mary Mac’s Tea Room in Atlanta, Georgia.
Ryan at a lunch table with Karina Moran, Courtney Flessner, Laura Tomas, and T.J. Jemison.
A dinner table of math educators dining and talking math!
Ryan hearing Fawn Nguyen speak live for the first time!
Cover slide from Leslie and Ryan’s presentation, Curiosity as a Mechanism for Teacher Learning
Ryan with Jeff Harker and Brendan Scribner.
Ryan with Kim Montague, Alison Mellow, Kourtney Peters, Shelby Strong, Courtney Flessner, Nova Katz, and Brendan Scribner sharing a night cap at NCTM.
A multi-colored carpet with geometric shapes.
A poster advertising NCTM’s Game Night @ 8pm tonight in OMNI International Ballroom E.
Ryan with Annie Forest and Laura Tomas.
Ryan with Nolan Fossum.
Ryan with Heidi Sabnani and Molly Vokey.
Laura Tomas, Courtney Flessner, and Ryan with Gloria Ladson-Billings after her NCSM25 Opening Keynote.
Ryan with Gloria Ladson-Billings at NCSM25 in Atlanta, Georgia.
After dinner selfie with Ryan, Melynee Naegele, Rachel Lambert, Jeff Harker, and Courtney Flessner.
Ryan with Melynee Naegele.
Ryan with Marria Carrington, T. J. Jemison, his husband Sean, and Courtney.
The picture shows a classroom at Butler University. There are eight tables in the room. Three tables have table tents on them for students to create name plates. Five tables have provocations prepared to engage students in thinking about math. Tools at the provocation stations include foam cubes, Legos, game pieces, number cards, and a box of items for counting collections.
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!
Ryan and Courtney with Monique Pollitt.
Ryan with Amanda Ray.
Ryan, Peter Liljedahl, and Courtney pose for a selfie with conference attendees filling the ballroom behind.
A long dinner table with plates of food and drinks. On the right (from front to back) are Jeff Harker, Dr. Pam Seda, her wonderful husband, Court, and Heidi Sabnani. On the right (from front to back) are Ryan, Mandy Ramey, Amanda Ray, and Melisa McCain.
Courtney leans in to talk to two of the participants in her session. She has a big smile on her face as she listens to a woman speak. The woman next to her is taking notes on what is being said.
Court prepping her slides as people file in for her session.
Theresa Liljedahl and Tim Brzezinski engage in an intense game of Jenga as Peter watches.
Ryan with Kristen Kuri.
Ryan with Sasha Wise and Laura Tomas.
Court and me emceeing the opening session at the Building Thinking Classrooms Conference.
Ryan and Courtney with Nolan Fossum. I finally met him in person!
Kristen Acosta strikes a pose in front of a picture of M&Ms labeled “How Many?”
Ryan with Jennifer Lempp. Check out her Math Workshop books!
A group of several math educators outside a restaurant in Chicago.
Ryan and Courtney with Todd Agee of Indianapolis Public Schools.
Ryan with Deborah Peart Crayton and Rob Baier.
Ryan and Courtney with Vanessa Vakharia.
A photo of 23 undergraduate pre-service teachers at the Goodwill Outlet.
Cover of the book “Learning Together: Organizing Schools for Teacher and Student Learning” by Elham Kazemi, Jessica Calabrese, Teresa Lind, Alison Fox Resnick, and Lynsey K. Gibbons