; (2) establishes an infrastructure that supports a rigorous assessment system, including dedicated staff time and professional development in assessment, a data collection plan, and the collection of multiple measures of academic progress, bilingualism, and biliteracy; (3) implements and aligns a curriculum that promotes the development of bilingual and biliterate competencies for all students through at least grade five; (4) utilizes and aligns student-centered instructional methods that enhance the development of bilingualism, biliteracy, and academic achievement; (5) aligns professional development and training for early childhood education instructors and elementary school teachers and staff, with an emphasis on dual language instruction, second language acquisition, and content knowledge; (6) recruits, trains, and continuously develops staff to implement high-quality, dual language programs