RSVP for final SFMTC session of 2024-25

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Brianna Donaldson

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Apr 29, 2025, 2:20:07 PM4/29/25

to aim-math-tea...@googlegroups.com

[posting on behalf of Paul Zeitz]

Hi Folks,

Please mark your calendars and RSVP to our final event of the academic year!

Episode 5 of Season 8 of the SF Math Teachers Circle takes place on

Saturday, 17 May 2025

at Proof School, 973 Mission St.,

from 10:30AM--1PM.

Our presenter will be Paul Zeitz (it was originally Alon Amit, but he had an unavoidable conflict and will present at an upcoming session in the fall).

Pattern Recognition

We will explore various interesting and sometimes not obvious patterns that emerge when you just mess around with pencil and paper (ideally, graph paper). Here is a simple example: In an n x n graph paper grid, draw diagonals from one vertex of a square to the opposite vertex. What is the maximum number of diagonals that you can draw with no intersections? For example, verify that a 2 x 2 grid can have 3 such diagonals, and a 3 x 3 will have 6 diagonals, but no more. What is the general case?

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We will provide coffee, tea, pastries, and lunch.

Proof School is located on Mission Street between 5th and 6th. There's cheap metered street parking across the street (only good for 2 hours, though; tied to your license plate) and more expensive parking at the Fifth and Mission garage at...guess! And BART and buses are nearby.

All teachers at all levels are welcome. Please share this invitation with others. Our events are free (including lunch).

Please RSVP with this form by Wednesday 14 May 2025 (so that we can plan our lunch order).

We hope to see you soon!

-SFMTC Organizing Teamgi

Sophie Ehlen

Avery Pickford

Paul Zeitz

Professor Emeritus, Department of Mathematics and Statistics

University of San Francisco

2130 Fulton

San Francisco, CA 94117-1080

Academic Director, Math in the Mountains