First language theories view a learner's native language as an influence in second language learning and advocate practicing specific sounds and patterns in the target language to overcome potential errors. Dual language programs provide at least 50% of instruction in the partner language at all grade levels and teach both literacy and content in both languages without translation. A study explored language ideologies of administrators and teachers involved in a district-wide dual language program, finding that views of other languages as assets and multiple languages as problems accounted for much of the variability in attitudes. Educators must apply language proficiency standards to systematically develop speaking, listening, reading, and writing skills and consider a student's developmental stage for an individualized approach.