This thesis is the outcome of a PhD CASE Studentship funded by the ESRC and British Telecom. It presents an exploration into the teaching of collaborative talk. The study was conducted in three phases: exploratory, development and implementation. During the exploratory phase, observations and interviews were conducted in authentic workplace settings to gain an understanding of workplace collaboration and collaborative talk. During the development phase, a teaching unit for the teaching of collaborative talk at GCSE was devised, informed by understandings gleaned during the preceding phase. During the implementation phase, the teaching unit was taught by two teachers in their secondary English classrooms. Both participating classes were arranged into groups of 4: 8 groups in School 1 and 7 in School 2. For the duration of the 3 week teaching unit, groups were recorded via camera and audio recorder, and the data later synchronised. Both teachers wore an audio recorder to capture interactions with groups and the whole class. To complement the core data set, students were interviewed for their views on their learning. Student booklets provided a means of collecting both group and individual reflections and evaluative comments. The data was analysed to explore the development of students’ collaborative talk. The role of the teacher in implementing the teaching unit and supporting students’ development was also examined. The findings provide an insight into the realities of implementing successful collaborative talk in the ‘real’ secondary classroom. It contributes to conceptualisations of collaborative talk and its development. It makes links between the role of emotional engagement and dialogic interactions in supporting that development. It proposes teaching strategies which challenge perceived notions of ‘good’ talk and encourages the development of meta-language to support self-evaluation and the development of collaborative talk.

Social knowledge about food was investigated from a social contingency perspective (Guerin, 1994, 1998, 2004), a functional linguistic approach that considers language use having functions both to establish 'facts' in order to control listeners, and to maintain social relationships with words. In Study 1, whether people shared knowledge about food or not was examined. One hundred and fourteen New Zealand and 23 Japanese participants were asked to answer free format questionnaires asking the reasons they and others eat or do not eat particular food items. Those answers were categorised into 8 categories and 30 sub-categories of the knowledge about foods by qualitative content analysis. The results of a cluster analysis of those categories showed that participants used the categories homogeneously although there were some differences between New Zealand and Japanese participants, and that the participants selectively used different types of knowledge according to food items especially when explaining why people do or do not eat some foods. In Study 2, rhetorical features about foods were investigated: (1) numerical quantification rhetoric; (2) narrative use rhetoric; and (3) enumeration rhetoric. Factual statements from a corpus of 118 New Zealand TV commercials and 249 Japanese TV commercials were coded by the categories generated in Study 1. The results showed that the categories of factual statements were selectively used on TV commercials depending on the food types, and related closely to the results of Study 1. The rhetorical strategies appeared in commercials according to the categories of factual statements. When more than one factual statement was presented in a commercial, the relations of the factual statements were usually of a conjunctive form such as quotfact A however fact Bquot or quotfact A moreover fact Bquot, or else the factual statements were presented independently rather than the one statement logically warranting the other. These results suggest that those rhetoric uses and the arrangements of the factual statements were selectively used according to the effectiveness against counter arguments using shared knowledge. Study 3 and Study 4 analysed the functions of shared knowledge about food for maintaining social relationships through investigating the cases in which knowledge about foods presented as the form of 'collaborative talk', which occurs when one speaker completes the preceding saying by another speaker. In Study 3, the collaborative talk as sentence completions of knowledge about food was qualitatively analysed from conversations of 30 to 45 minutes produced by four groups consisting of four or five Japanese participants who were friends. From a social contingency view, the analysis focused on the following conversational properties: (1) who the listener was; (2) the degree of sharing of the information between the speakers; (3) the degree of sharing of the information between the 2nd speaker and the listener; and (4) the disagreement between the 2nd speaker and the listener. The results of Study 3 suggested some possible functions of sentence completions of knowledge about food: (1) the function when the first speaker is the listener may be enhancement of the relationship between the first and the second speakers through showing the second speaker's attention and understanding to the first speaker's utterance, because those sentence completions were often followed by the affirmation or negation by the first speaker; (2) when a third person is the listener, and the first and the second speaker refuted the third person using sentence completion, the function seems to be just establishing 'facts'; and (3) in the cases of 'assisted explaining' (Lerner Takagi, 1999) , the function may be not only establishing 'facts' but also enhancement the relationship between the listener and the speakers, because the constructed 'facts' may work as a kind of conversational 'gift'. In Study 4, five Japanese groups consisting of four participants who were friends were asked to talk about four topics about foods that all participants either agreed or disagreed ('All agree' condition) and four food topics for which there was disagreement about it between participants ('Some agree' condition). When the listeners could not be identified, and the second speakers did not used the utterance-final element such as 'yo ne' that is regarded as having a function of showing agreement between the speakers, the participants used sentence completions more frequently in 'All agree' conditions. The results suggested that the function of this type of sentence completion is not merely establishing 'facts' but also enhancing the relationship between the speakers through showing agreement about the relevant things to the topic. In conclusion, the results of the present studies suggest some possible social contingencies involved both when people get knowledge about food and when they use it.

Evaluation of teacher training has been conducted primarily on pre-service contexts and has focussed almost exclusively on evidence of impact in terms of changes in teachers’ behaviour or beliefs. Using a responsive / constructivist methodology my research focuses on an in-service context and takes the participants as the starting point of the research in order to examine both the processes of teacher learning (i.e. how do teachers learn) as well as the product (what are their claims, concerns and issues) regarding the training programme. The emergent data is analysed with findings grounded in the literature of teacher learning and parallels made with my own reflections on the processes of learning through the research experience itself. The evaluation focuses on a Cambridge In Service Certificate of English Language Teaching (ICELT) training course which is designed as an internationally appropriate INSET programme that can satisfy the training needs of (both native and non-native) EFL teachers. The research is valuable because we do not know how teachers learn on a training course. Through a review of the literature and exploiting the imagery of a metaphorical journey of development, I formulate a framework for analysing teacher learning which distinguishes between practical (applied) knowledge, conceptual knowledge and knowledge of self. This theoretical framework provides a lens to analyse data emerging during the evaluation. The research advocates an alternative ‘constructivist – responsive’ method of evaluation for teacher education programmes that has the dual aim of learning through the evaluation (process) as well as from the evaluation (product). The research methods follow a Fourth Generation Evaluation model (Guba and Lincoln 1979). The results show that in terms of the evaluation outcomes (product) we can identify modes of learning that concern tasks (how), knowing (what) and awareness of self and socio-cultural context (why). Analysis of the teachers’ talk as collaborative interaction showed little evidence of learning taking place. There were no obvious sections of exploratory talk that is conducive to the construction of new meanings and learning. However by analysing teachers’ talk as a manifestation of individual modes of thinking we are able to identify modes of thinking that have clear parallels with the framework of teacher learning depicted above: techno-rationale thought (how), reflective thought (what) and critical thought (why).The descriptive framework therefore depicts the integration of levels for both the process of learning and the products of learning and as such is a powerful tool for teacher educators. Teachers need to operate on all three levels in their professional lives. The study challenges some well-established assumptions in teacher training evaluation. In terms of epistemology, teacher learning is life-long and individual. Human learning occurs on three levels: physical (body), mental (mind) and spiritual (soul) and these levels describe how we think as well as what we do. Evaluation of any training course needs to take into consideration the dimensions of learning, the influence of the socio-cultural context and recognise the interconnectedness of process and product (i.e. how the traveling and the journey interact).

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