This is a year of transitions for the GeT: A Pencil community. In May of 2024, project leaders Pat Herbst and Amanda Brown asked if Steve Syzdlik and I would assist with editorial duties for GeT: The News in the 2024-2025 academic year, working with Research Technician Anthony Davis. Our vision for the newsletter this year is that it will provide opportunities to engage, maintain, and expand our community. The GeT: A Pencil community is special because it brings together mathematicians, mathematics educators, teacher educators, and educational researchers from across the country to work together toward a shared goal: to productively impact the ways teachers become prepared to teach geometry. As you read this, I hope you believe that there is a place for you in our community. Whether you are an emeritus professor, a new instructor, or a teacher leader, your experiences and insights are welcomed!

In October, Hurricane Helene forced the cancellation of a Special Session of the American Mathematical Society Southeast Sectional Meeting in Savannah, Georgia focused on Geometry for Teachers courses. We extended invitations to community members whose sessions were canceled to write about their work in this newsletter instead. This issue of GeT: The News includes three articles by GeT community members, collectively addressing topics of technology, definitions, and transformations. In the first article, An, Buchbinder, and Krupa reflect on the current and potential role of technology in their GeT courses. In the second article, McLeod describes new insights on relationships between angle measure and angle definition and the choice of definition of rotation to support transformational proof. In the third article, Sears and Buchbinder discuss outcomes from a sorting activity (using technology) for teaching geometric definitions.

Working Groups for the GeT: A Pencil have been hugely impactful on me. I consider myself a “mid-career” mathematics educator, as I enter my 8th year teaching College Geometry courses.
I’ve been a member of the SLOs working group and the Transformations working group, and in both situations I’ve had the opportunity to deepen my Geometry Knowledge for Teaching and improve my teaching. This Fall, the GeT community started three new Working Groups. In this newsletter, the organizers for each Working Group summarize their current foci. The primary contact for each working group is available as well if you would like to learn more. I encourage you to check them out, particularly if you haven’t been part of a Working Group before.

Lastly, an important aspect of the newsletter is building our community and inviting new members. The newsletter closes with a shout out to our wonderful GeT Community members Stephen Szydlik and Dorin Dumitrascu. We also close with an introduction to a “returning” GeT member, Dr. Irma Stevens from the University of Rhode Island. Maybe next time we’ll GeT: to know more about you!