This course introduces students to the theory and practice of language and early literacy development, with a focus on bilingualism and second language acquisition from birth to five years of age. Students examine the major subsystems of language - phonology, morphology, vocabulary, grammar, pragmatics, and discourse - and the development of these subsystems in both first and second language acquisition processes. Students explore social, cultural, cognitive and instructional influences on language and early literacy development, and learn strategies to facilitate dual language learning in preschool classroom contexts. They use language research procedures to document a child's bilingual development and plan instructional adaptations that support dual language and emergent literacy growth.