English learners are best supported when they receive culturally relevant content-area instruction in their first language. Numerous studies (e.g., Lindholm-Leary 2001) support this approach, and bilingual and dual language teachers in the community of Austin, Texas, have called for curricular resources. In response, a group of researchers, community advocates, and former public school teachers established the community-based organization "Nuestro Grupo" ("Our Group") in September 2013 to lead the effort. Through a series of partnerships that included Nuestro Grupo, the school district, the City of Austin, university faculty and students, Mexican American scholars, civic and cultural organizations, indigenous leaders, and many others, the authors co-constructed a Mexican American history curriculum for fourth-grade Austin Independent School District (AISD) students who attend a Saturday morning school that the authors created and named "Academia Cuauhtli" ("Eagle Academy"). In the process, the authors, as researchers and community leaders, were transformed, and the curriculum they developed evolved into a deeper learning experience than we ever imagined. This article explains how this happened.