San Francisco Math Teachers’ Circle

San Francisco Math Teachers’ Circle

Welcome to the San Francisco Math Teachers’ Circle! Founded in 2016, we are a professional community of teachers and mathematicians who love solving fun, challenging math problems. The SFMTC offers monthly Saturday meetings for math teachers interested in exploring accessible, exciting topics in mathematics. All teachers are welcome to attend. Meetings include lunch, which is complimentary.

The San Francisco Math Teachers’ Circle will be meeting at Proof School, 973 Mission St., San Francisco, CA 94103. Our sessions take place on Saturdays from 930–1230, approximately.



Proof School: 973 Mission St., San Francisco, CA 94103


For more information, please contact Paul Zeitz, zeitzp (at) usfca . edu

Leadership Team

Avery Pickford, Nueva School
Sage Moore, McClymonds High School
Paul Zeitz, University of San Francisco (emeritus)

Upcoming Events

SFMTC Season 5, episode 2
Dec 11 @ 9:30 am – 12:30 pm
SFMTC Season 5, episode 2
The facilitators will be Proof School teachers Anna Weltman and Graham Gordon. Here is a description.
Measuring Squareness
What makes a square so square? And what makes one rectangle more square than another? Maybe those questions sound simple, but like many simple math questions they lead to some interesting places! Explore squareness, rectangleness, and other ways to order and measure polygons in this session. 
Proof School, like most schools, has a strict health protocol, and we will ask for proof of vaccination or a negative COVID test within 72 hours.  We will also take your temperature and require masks indoors. There will be coffee, tea, and bagels, but we ask that you only take off masks while eating and drinking, not talking.  If you came in October with proof of vaccination, we recorded this so we can expedite your entry.
We plan to provide lunch, but to facilitate socializing, we will try to find a way to eat outside, either at the Kapwa gardens next door or Yerba Buena Gardens a few blocks away, weather permitting (YBG worked pretty well in October).  If the weather is nasty we will eat inside, which will be warmer but maskier.
Proof School is located on Mission Street between 5th and 6th.  There’s cheap metered street parking across the street (you’ll need to refresh the meter after 2 hours) 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.  Feel free to share this invitation with others.  Our events are free (including lunch).
Please RSVP with this form by Wednesday 8 Dec 2021.

Proof School

555 Post St, San Francisco, CA 94102


If you’d like to attend an upcoming meeting, please contact us.

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