OneWorld Now! (OWN) is an after-school program that focuses on global citizenship education by serving
Seattle high school students with Arabic or Mandarin instruction, leadership coursework, and study abroad. A participatory
program evaluation showed (a) OWN’s leadership curriculum to align with most standards for promising and evidence-based
practices, (b) a year of OWN’s leadership coursework to associate with elevated levels of global citizenship on three measures,
and (c) mixed results when comparing OWN’s recruitment methods to a high school-specific definition for global citizenship
development. We discuss OWN’s status as a rare program to prioritize global citizenship and serve mostly
economically disadvantaged students, plus opportunities for OWN to improve its design and theory.