This paper examines teachers' implementation of a bilingual intercultural education (BIE) program in Peru. This program is inspired by global policies that promote cultural pluralism and educational access to marginalized indigenous populations. Broadly addressed in policy in Andean countries, interculturalism in Peru has remained a core educational principle with a neglected pedagogy. The lack of preparation of BIE teachers in intercultural pedagogy has both forced and allowed them intuitively to make sense of interculturalism in practice. Based on an ethnographic study of BIE teachers, this paper discusses teachers' interpretations of interculturalism and of indigenous culture. The study aims to inform educators and policy-makers concerned with interculturalism about the challenges and possibilities of a pedagogy that affirms diversity and advocates quality education for all. (Contains 2 notes, 1 table and 1 figure.)