A Novel Format for Math Circles: Circles with no Center

This paper shares a novel format for Math Circles, which we call “circles with no center.” Circles with no center do not have a traditional facilitator. The problem or activity is novel to everyone in the room. All members engage in mathematical inquiry, and everyone takes responsibility for running the gathering. The “no center” format has benefits for participants and organizers. For participants, the format offers more freedom and more responsibility. For organizers, the format is easier to organize, more fun, and involves less pressure. Our assessment of a 3-day retreat for teachers suggests participants may prefer a circle with no center to a traditionally facilitated gathering. In the paper, we introduce the “no center” format, describe the format in detail, discuss the benefits of the format, and provide tips for organizers for implementing a circle with no center.