Introduction to the main aspects of first language acquisition from infancy through childhood. Topics areas include phonology, morphology, syntax, semantics, discourse-pragmatics, language variation, multilingualism, child- directed speech, cognitive development, and theories of language acquisition. 4 cr. Effective Fall 2020, this course fulfills a single unit in each of the following BU Hub areas: Scientific Inquiry I, Social Inquiry I, Critical Thinking.