“hypothesis was influenced by cognitive theory, but more recent work has been motivated by sociocultural theory. Using the term collaborative dialogue, Swain and Lapkin and their colleagues have carried out a series of studies to determine how second language learners co-construct linguistic knowledge while engaging in production tasks (i.e. speaking and writing) that simultaneously draw their attention to form and meaning. As shown in Communication task B in Chapter 5, learners were testing hypotheses about the correct forms to use, discussing them together and deciding what forms were best to express their meaning.”