The ESLO working group is a cooperative group of high school geometry teachers, university GeT instructors who are mathematics teacher educators, and university GeT instructors wo are pure or applied mathematicians. Our group was founded in fall of 2022 and has continued to meet twice monthly this semester. Our charge over this academic year was to come together as a subset of unique stakeholders in the GeT: A Pencil community to share our opinions and feedback on the first published draft of the Student Learning Objectives (SLOs hereafter).

At each meeting, we focus on one SLO. Each member of the group shares their reactions to parts of the SLO text, which typically includes anecdotes from teaching experience or research. Together, we contemplate the degree to which the SLO captures what our collective experiences have taught us and what we would hope to see in a GeT course. We begin by looking at the parts of each SLO that resonate with us most and then formulate ideas for edits to the text which may make certain ideas clearer to different readers: GeT instructors, GeT students, or high school geometry teachers.This semester, the ESLO group also met in smaller groups of 3 members to craft summaries of the group’s feedback for each SLO. These summaries were then posted to the GeT: A Pencil forum (https://getapencil.org/community/). We hope that in this way, we can not only celebrate the work of the authoring team and provide useful feedback to them, but also make others interested in GeT instruction aware of this guiding document and encourage them to join the conversation. By bringing together instructors of geometry at different levels, the ESLO group has put the SLOs into the hands of many who plan to disseminate the guidance and insight that the SLOs provide.