transformation in the ZpD. The ZPD occurs in interactive activity where novices and experts work together to solve problems and, in the process, transform their individual knowledge of the task and understanding of each other (Newman & Holtzman, 1993). As presented in the last section, working in the ZPD produces learning, which is reciprocal, and not just unidirectional from expert to novice. Wells (1999) points out that the results of this kind of ZPD activity enable learners to participate easily in similar communicative events and learn from them, such as when they speak with native speakers of the TL. In addition, by collaborating on a problem or task, the novice and expert transform their relationship and understanding of each other and of the task at hand.
When discussed in the context of the foreign language classroom, some view activity in the ZPD as limited to instruction on language content, such as a grammatical struc- ture. The ZPD can be conceived of more broadly, as pointed out by Kinginger (2002), and applied to all aspects of foreign language instruction and learning, including devel- oping discourse competence and pragmatic and cultural appropriateness. For instance, in a setting where a teacher and a small group of students are helping each other to write and edit an email letter to a school in Madrid, one student might suggest, “You mentioned that you went to a football game, and that your team won by an extra point at the end of the game. Will the reader understand what an extra point is in American football?” The student who wrote the letter might say, “Do you think I need to explain a little about American football?” The assistance the first student provides could then lead the teacher to another suggestion, such as, “Your audience in Madrid may not be familiar with American football since they play soccer. Let me check with their teacher in Madrid and get back to you.” By working in the ZPD, this teacher and his or her learners provide mutual assistance and co-construct cultural knowledge that is available for present and future learning events. Perhaps in the future and because of this assistance, the concept of “audience” and the need to make cultural references clear will re-emerge for these students as an important aspect of the writing process. Moreover, as students make sug- gestions for what they want to say, they set their own learning agenda. Thus within the ZPD, teachers are informed of areas of interest to the learners and language and cultural knowledge they want to know.
When individuals work in the ZPD, scaffolding often arises. Scaffolded interactions occur when the expert, e.g., the teacher or a more knowledgeable peer, reduces the frustration level of the task. In the case of the collective email letter writing, the teacher provides suggestions and tools in the form of information about the audience to reduce student frustration in trying to provide necessary details in the letter. Scaffolding also sug- gests that the expert identifies critical features of the task (e.g., considering the audience when writing a letter and not assuming that football is played the same way everywhere in the world). During scaffolded interactions in the ZPD, the teacher is transformed from one who provides solutions to one who facilitates the learners’ search for solutions. The teacher also gains from the interaction by observing how his or her assistance is used by the students, how his or her help leads them to a potential level of development, and where his or her students might be in their letter-writing ability in the future. Empirical evidence also supports the function of the ZPD as an activity through which social pat- terns of interaction and mutual assistance can result in learning (Donato, 1994; Ohta, 1995; Swain & Lapkin, 1998). It is important to note that the ZPD is an activity that is at the same time the tool for learning language and the result of using language with others. It is not just a tool for a result, but rather tool and result; e.g., a teacher uses the tool of a story and engages students in short retelling or writing, which results in the creation of the ZPD where he or she may provide scaffolding. Language use creates a ZPD so learn- ing can happen; this learning may be decided upon by the learners (that is, not just by curricular objectives) and involve what they need to know to accomplish the activities in
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which they are engaged. The ZPD, therefore, is a powerful concept that offers a different view from that of the typical “delivery of instruction” model of language teaching. Donato points out that the concept of the ZPD and sociocultural aspects of interactions in sec- ond language classrooms have been largely ignored, but that they offer a rich source of understanding about how a language can be learned by learners who are actively using it in collaborative interaction.