Introduction to the main aspects of language and language acquisition in typical, atypical, and second language learners. Topic areas include phonology, morphology, syntax, semantics, pragmatics, child- directed speech, the role of 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.