The Interaction Hypothesis
The interaction hypothesis states that… …through input and interaction with interlocutors, language learners have opportunities to notice differences between their own formulations of the target language and the language of their conversational partners. They also receive feedback which both modifies the linguistic input they receive and pushes them to modify their output during conversation.
Our own experience?
But.. Seedhouse, P. (1999). Task-based interaction. English Language Teaching Journal, 53(3), 149-56.
Practical implications?