California State University (CSU): Open Journal Systems
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A Medial-Axis-Based Measure of District Compactness
Get PDFAn essential question for democracy is how to rigorously determine the likelihood that a congressional map has been gerrymandered. A number of state constitutions require districting plans to be "compact", yet no set definition of compactness exists, other than an oft-cited sentiment that you "know it when you see it". We introduce a novel compactness measure based on a geometric structure known as the medial axis, which has strong ties to the science of how humans perceive and process shapes. As such, we argue that our metric performs well as a mathematical quantification of ``"knowing it when you see it”. We compare our medial-axis-based measure to a recent machine-learning-based compactness metric introduced by Kaufman, King, and Komisarchik. Specifically, we examine the performance of our measure and theirs in several case studies, including two states whose districting plans have been extensively covered in the media as well as the entire 2016 congressional district map
Community Action and Empowerment Using Community Based Participatory Research to Create CBPR Methodology Curriculum and Pilot Course
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David Trinidad’s “Ode to Dusty Springfield” and Learning How to Live (with yourself and death)
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Journal of the California Mathematics Project Volume 13, Fall 2025
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Ancestral Healing Studies: Preparing the Next Generation of Practitioners: Plenary Address
No full textWhen I read the title of the plenary, “Reshaping our Bodies of Knowledge: Transcending the Limits of Chicana/x Studies,” my spirit was activated, my heart jumped, and my mind began to imagine what it might look like to incorporate my work in ancestral healing traditions more fully into our curricula as part of a larger cohesive area of study, perhaps as a concentration or certificate. I hope to show through my platica that we are ready for this next step and more importantly, that our ancestral medicine is desperately needed
Making Experiential Education Visible Through Definition: A simple, three-part definition helps practitioners communicate to other stakeholders.
No full textThis article describes the circumstances, process, and decisions which led to Purdue University’s definition of experiential education. The motivation for creating the definition came from a realization that though experiential education was a common practice at the university, it was not visible to nor well understood by university decision-makers. The definition created states that “experiential education is a planned pedagogy centering on an authentic experience to strengthen students’ knowledge, skills, and abilities, paired with student reflection.” This definition was shaped by relevant scholarship documented by academic literature and professional associations and by expertise developed through local practice. It has three key components: 1) planned pedagogy (intentionality), 2) authentic experience, and 3) student reflection. Intentionality emphasizes the planned and designed nature of experiential education, differentiating it from the learning from experience that happens just from moving through the world. Authentic experience allows students to develop and/or apply knowledge, skills, and experiences in the same fashion that they are used in the world at large, such as in an industry, a workplace, or a community. Finally, reflection is the key to extracting lasting learning from experiences. This article explicates the definition in detail and discusses transferability to other contexts
