• 4. Theories of 2nd Language Acquisition

    This lecture explores several influential theories that aim to explain the process of Second Language Acquisition (SLA). Krashen’s model, which adopts the innatist perspective, emphasizes the importance of exposure to Comprehensible Input (i+1), arguing that acquisition (natural uptake) is a separate and more vital process than conscious learning (grammar study). Developed from the input hypothesis, the Interaction Hypothesis posits that comprehensible input is facilitated through meaningful interaction, allowing for input modification and feedback between interlocutors. Conversely, Swain's theory of Comprehensible Output maintains that language acquisition requires learners to be pushed to produce language precisely and appropriately, thereby shifting their attention from meaning to form. 

    Objectives of this Lecture

    At the end of the lecture, students will be able to:

    • Explain the core tenets of Krashen’s model.
    • Contrast the Interaction Hypothesis with the Comprehensible Output theory 
    • Analyze models focusing on individual and environmental factors

    • Lecture 4
      Lecture 4
    • Watch Summary of Lectures 3 and 4 
    • Assignment (Devoir)
      Assignment (Devoir)
    • References
      • Ellis, R. (1997). Second language acquisition. Oxford: Oxford University Press.
      • Long, M. H. (1983). Native speaker/non-native speaker conversation and the negotiation of comprehensible input1. Applied linguistics, 4(2), 126-141.

      • Krashen, S. D. (1981). Second language acquisition and second language learning. Oxford University Press.

      • Schumann, J. H. (1986). Research on the Acculturation Model for Second Language Acquisition. Journal of Multilingual and Multicultural Development,7(5), 379-92.