QED, a conversation about
math and math education
A monthly online series hosted by Dr. Arthur Benjamin.
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Next up
QED, a conversation about
math and math education
Hosted by Dr. Arthur Benjamin
with special guest Karl Schaffer
Monday, September 8
6:30 pm to 7:30 pm ET
(online)


Join Dr. Arthur Benjamin, MoMath’s 2025-2026 Visiting Professor for Public Outreach, as he welcomes Karl Schaffer to the MoMath stage for an engaging conversation about math and math education.
Karl Schaffer, math professor emeritus at De Anza College in California, directs the dance ensemble MoveSpeakSpin, which has been touring internationally for more than 30 years. He is on the Kennedy Center Teaching Artist Roster, publishes widely on dance and mathematics, and received the 2023 Rosenthal Prize in Math Teaching.
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October
QED, a conversation about
math and math education
Hosted by Dr. Arthur Benjamin
with special guests Doug O’Roark
and Lauren Siegel
Monday, October 27
6:30 pm to 7:30 pm ET
(online)


Join Dr. Arthur Benjamin, MoMath’s 2025-2026 Visiting Professor for Public Outreach, as he welcomes Doug O’Roark and Lauren Siegel to the MoMath stage for an engaging conversation about math and math education.
Lauren Siegel is the co-founder and Executive Director of the MathHappens Foundation, established in 2014 to bring hands-on math experiences into public spaces. MathHappens designs and freely distributes custom mathematical materials to museums, libraries, and other learning venues in 17 states.
Doug O’Roark has spent the past decade leading Math Circles of Chicago, now the largest math enrichment program in the country. His career has also included heading the AIM-TRU research project at DePaul University, helping to improve math teaching across Chicago Public Schools, and directing the secondary math component of the University of Chicago Urban Teacher Education Program. The first math teacher hired at Walter Payton College Prep, Doug has earned numerous awards, including MoMath’s 2020 Rosenthal Prize for Innovation and Inspiration in Math Teaching, and has math awards named in his honor at both Payton and the City of Chicago Math League.
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About the QED monthly series

Join Dr. Arthur Benjamin, MoMath’s 2025-2026 Visiting Professor for Public Outreach, each month as he welcomes special guests to the MoMath stage for engaging conversations about math and math education.