I taught geometry to two different audiences: Math majors with some inclination to proceed to secondary teaching or a graduate program in mathematics. Students taking mathematics to fulfill some general education requirements for a bachelor’s degree. In different ways, what I enjoyed in teaching both these groups was seeing the positive energy and enjoyment when […]

People often wonder whether artists really use geometry. I am convinced that they use geometry all the time—and that they use every kind of geometry. Sometimes artists have studied geometry; Salvador Dalí learned mathematics from Thomas Banchoff and René Thom. M.C. Escher used ideas from H.S.M. Coxeter and Roger Penrose; Leonardo da Vinci was himself […]

Over the past few months, many of you have contributed chapters to an edited volume that the GeT:A Pencil Community will soon be submitting to the MAA. Some of you are still in the process of wrapping up a chapter. In the next month or so, the co-editorial team will be asking many of you, […]

Four questions with Scot Acre, Mathematics Teacher at the Macomb Mathematics Science Technology Center On the job, memories from high school, attending conferences, reading books, belonging to professional organizations.  I love the visual nature of the subject. I love how Geometry began as a way to figure out what was going on in the world. […]

Early in my involvement with the GeT ESLO group, I asked about the end goal of the group. I asked this question because I suspected that my goal was different from some of the other members of the group. Sure, I agreed that the Geometry for Teachers courses needed guidelines to ensure that the course […]

Introduction  Makerspaces, varying in shape and size, serve as spaces where students convene to create, invent, tinker, explore, and discover using a diverse range of tools and materials. Makerspaces are natural places for developing mathematical arguments and mathematical models, where geometric assumptions are supported and real-world complexities arise. Drawing inspiration from an eighth grade makerspace […]

The emergent consensus our community has reached on the student learning outcomes for geometry courses for teachers allows us to come back to one of the aspirations of the initial working groups in GeT: A Pencil–the creation of a task repository. Indeed, the collaborative curation of resources for teaching GeT courses could be a next […]

Abstract In this article, I propose a reconsideration of mathematical content for teaching high school geometry for preservice teacher education based on my own experience teaching geometry courses. The Conference Board report on the mathematical preparation of teachers recommended that future teachers complete three courses focused on school mathematics from an advanced viewpoint (CBMS, 2012). […]

Our winter newsletter comes late this winter; it is officially spring! We wanted to wait until after our GeT: Together at RUME1 pre-conference and workshop to publish this issue. Indeed, I wanted to wait until after the conference to write this note, in part because it is somewhat of a spring time for GeT: A Pencil also. Valuable ideas […]

I was delighted to be invited to join the GeT community in Omaha this past February. As a high school teacher, this was my first time attending this type of gathering. Also, because I work in Massachusetts, I have not had the opportunity to attend local events in Michigan before. At first, I was worried […]