What do theorists gain from examining only the "idealized" speaker-hearer? What do they lose?

How might Tarone's notion of "heterogeneous" competence go beyond the limitations of Chomsky's understanding of competence?

2. Look at the organizing principles presented in this session's notes. React in terms of how accurate it reflects your teaching style and the way you address language needs of ELL learners in your classroom. Do you agree or disagree. Add any other guiding principles to the list that reflects your understanding of language acquisition.