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# Monthly Math Hour at the University of Washington

Each spring, Seattle-area middle- and junior high-school students are invited to participate in the Monthly Math Hour at the University of Washington. Due to the pandemic, the this year's Math Hour talks in March and April were held virtually, via Zoom, although the final talk in May will be in person. We are excited to welcome a fantastic selection of speakers who typically would not be able to join us in Seattle, but who now can because of the remote nature of the talks.

The events are free, but registration is required. Registration links will be distributed through our mailing list: to join the list, click here.

• Julia Pevtsova: julia [at] math [dot] washington [dot] edu.
• Steve Klee: klees[at] seattleu [dot] edu.

### Events for 2022

We are excited to present:
• Sunday, March 20, 1:00 PM (on Zoom)
Patterns in permutations
Lara Pudwell, Valparaiso University

A permutation is a list of numbers where order matters. While it is well-known that there are n! ways to put n different numbers in order, there are a variety of follow-up questions to explore, especially when we study permutations that have specific properties. In this talk, we will focus on permutation patterns – that is, smaller permutations contained inside of larger permutations. From a pure mathematics perspective, permutation patterns lead to a variety of interesting counting problems. Looking further afield, these patterns have connections to computer science, chemistry, and more!

• Sunday, April 10, 1:00 PM (on Zoom)
Boards, cards, and coins
Dimitar Grantcharov, University of Texas, Arlington

We'll talk about games involving boards, cards and coins, and discuss winning strategies and the invariants which can help you win!

• Sunday, May 22, 1:00 PM (in person)
Multiplication algorithms, new and old
Ricky Liu, University of Washington

What's the fastest way to multiply? We'll take a look at multiplication tools and methods from antiquity to present day and discover whether there is a faster way to multiply than what you were taught in school.

Note: This talk will occur in person at Johnson Hall 102, University of Washington, Sunday 1:00 PM. Per UW's Covid-19 policy, face masks are strongly recommended — see https://www.ehs.washington.edu/covid-19-prevention-and-response/face-covering-policy for more information.

We hope to see you there!

### Thank you!

The Monthly Math Hour at the University of Washington is supported by the NSF awards DMS-095-3011 and DMS-16000048 and the UW Department of Mathematics.