GeT Seminar - April 12, 2024


Extending and Elaborating on the Role of Definitions in GeT Courses

Friday, April 12th, 2024
11:00 am PT | 12:00 pm MT | 1:00 pm CT | 2:00 pm ET
Presenter: Nathaniel Miller, Henry Escuadro, Steven Boyce


In this seminar, three of the authors of the SLO-5 (Definitions) narrative extend our discussion of the role of definitions in GeT courses. We expand our framing of what understandings of definitions are important for secondary Geometry teachers to learn. We then elaborate on three activities from our GeT courses that can provide some of these learning opportunities.

Registration Open: Closes April 10th

Duration: 60 minutes

Format: Online seminar via Zoom web meeting software with questions and discussion. Detailed instructions for joining the seminar will be emailed to registered participants.



The presenters are each GeT instructors who collaborated to help author the narrative for SLO-5 on Definitions. Henry came to Juniata College, a small liberal arts college in Pennsylvania, in 2006 after finishing his PhD in mathematics. He is tasked with teaching the only geometry course at Juniata which he has done every other year since joining the college.  Steve’s PhD is in mathematics education. Prior to pursuing graduate studies in mathematics, he taught high school geometry for five years. Since 2014 he has taught at Portland State University, where he is often the instructor for two geometry courses for teachers: one course primarily serving undergraduate mathematics majors and one course primarily for in-service secondary mathematics teachers. Nat did his PhD in mathematics, in the foundations of Euclidean geometry. He is the author of Euclid and his Twentieth-Century Rivals: Diagrams in the Logic of Euclidean Geometry (2007). He has been at the University of Northern Colorado since 2001 where he has taught more than 40 geometry courses to pre-service secondary and elementary teachers, in-service secondary teachers, and PhD candidates in mathematics education.

Steven Boyce

Nathaniel Miller
Henry Escuadro