In preparation for a piece of writing I did about starting a math circle in county jails in Boulder and New Orleans, I collected the activities that we’ve developed (based on many other math circle resources available online and in print) to share broadly via Google Drive. The piece got long and may turn into a journal article rather than the original intention of blog post, but when it is available I will link to it here. It describes the issues, obstacles, and joys of engaging in this kind of outreach which I’ve been organizing on a weekly basis since April 2023. Look out for more coming soon!