Based on a long-term comparative ethnographic study in two Philadelphia (Pennsylvania) public schools, the study reported here describes what two teachers do to create successful learning contexts for the biliterate development of linguistic minority children in their classes. Two classrooms situated in contrasting community, program, and language contexts are examined: a fourth/fifth grade in a two-way maintenance bilingual education program for Puerto Rican children and a fourth grade in a mainstream/English-as-a-Second-Language pullout program for Cambodian children. The learning contexts are discussed in terms of four themes identifying critical aspects of contexts for teaching biliteracy: motivation, purpose, text, and interaction. Specifically, the study asks what it is that these teachers do that goes beyond good teaching to be good teaching for biliteracy, and how their approaches differ according to the particular configuration of biliterate contexts, biliterate media, and individual biliterate development of the linguistic minority children in their classes. (Author/MSE)