This course introduces major theories of second language acquisition, explores how these theories have influenced the history of the field of TESOL, and examines how the theoretical foundations of SLA have practical implications for TESOL program models, pedagogical methods, and assessment. It also considers ethical implications for teachers and students of the sociocultural context of language learning. Historical legal actions as well as current state and federal requirements affecting provision of services for English language learners are reviewed. Opportunities for continued development as a TESOL professional are introduced.