The Unit of Analysis in Mathematics Education: Bridging the Political-Technical Divide?1 Paul Ernest University of Exeter ABSTRACT Mathematics education is a complex, multi-disciplinary field of study which treats a wide range of diverse but interrelated areas. These include the nature of mathematics, the learning of mathematics, its teaching, and the social context surrounding both the discipline and applications of mathematics itself, and as well as its teaching and learning. But research and researchers in mathematics education fall loosely into two camps: On the one hand there is technical research, drawing on mathematics, psychology and pedagogy, concerned with narrow questions about the teaching and learning of mathematics. On the other hand there is political and social research drawing on sociology and philosophy, addressing large scale problems of social consequence. These two camps tend to draw on different theoretical underpinnings as well as having different interests. Is it possible to find a shared theoretical element, a single unit of analysis for mathematics education which provides a unified approach to both analysing and explaining all of these diverse aspects? Can such a unit provide a bridge across the technical-political divide? Before these questions are addressed the meaning of the term „unit of analysis‟ is clarified. After distinguishing between methodological and ontological senses, I propose units of analysis within each of the four listed subdomains of mathematics education. Then drawing on Blunden's (2009, 2010) interdisciplinary version of cultural historical activity theory I propose a single over-arching unit of analysis, the collaborative project, for the whole field, thus potentially bridging the technical-political divide. Mathematics Education What makes up the field of mathematics education as a research domain? A good starting point is Joseph Schwab's (1961) four commonplaces of teaching. These include the subject taught, the learner, the teacher, and the milieu of teaching, comprising the relationship of the subject, and its teaching and learning aims, to society in general. Applying these four commonplaces of teaching to the field of mathematics education results in the specification of four domains of theory that mathematics education as a research field must accommodate. These are: 1. An account of the nature of mathematics (philosophy of mathematics), 2. A theory of learning mathematics (psychology of learning mathematics), 3. A theory of teaching mathematics (mathematical pedagogy), 4. A theory of the social context of mathematics education, incorporating the interpersonal, cultural, social, societal and political milieu of mathematics education in its theoretical and practical forms (sociology of mathematics). This is a tentative listing because there might well be further subdomains of mathematics education beyond those identified here. However, many of the issues not explicitly mentioned, such as the aims of teaching and learning of mathematics, the mathematics curriculum and its assessment systems, and issues of diversity defined in terms of class, 1 The (first) definite article in this title is intended to designate the topic of discussion as specific singular area, and is not intended to imply that the unit (or units) of analysis proposed are unique or constitute the only viable constructs. ability/achievement, gender, race and culture, can in my view be treated under the fourth heading, the social context of mathematics education. Mathematics education is a newly emergent field of study in social science research that is strongly influenced or even shaped by adjacent disciplines and practices. Top-down, mathematics and psychology were the original parent disciplines and continue to be very influential. Bottom up, pedagogical practices, and in particular the various technologies used in mathematics and its teaching, have also been very influential.2 Thus a good deal of research is based on detailed mathematical or psychological analyses of the teaching or learning of mathematics, or on detailed studies of the effects of technologies, including information and communication technologies. Such research is in the main detailed and technical, focusing on scientific studies of the teaching and learning of mathematics, that is on the psychology and pedagogy of mathematics. Typical theories employed have been neo-Piagetian and constructivist, as well as process-product experimental designs within the scientific research paradigm. There have also been detailed constructivist studies of individual learners and groups of students within the interpretative research paradigm. My point is that such studies are largely detailed and technical and mostly only refer to social contexts as secondary aspects of the research insofar as they impinge on the main focus of study. Some studies are now also using Vygotskyan and „community of practice‟ theories, so there are greater possibilities of incorporating social aspects of learning, but these are mostly local interpersonal aspects of the social. In contrast, an area of research that has been growing over the past two or three decades comprises studies primarily directed at the social and political aspects of mathematics education. This includes studies of gender, race and class in school mathematics. It also includes the aims and goals of teaching mathematics. Looking critically at aims and indeed at the discipline of mathematics itself brings in philosophy: philosophy of education and philosophy of mathematics. Thus typically sociology and philosophy underpin social and political research in mathematics education. I want to stress this distinction between types of mathematics education research according to the style and focus of the research. On the one hand I want to claim there is technical research, concerned to discover and test details of the teaching and learning of mathematics. On the other hand there is political and social research with a social interest. Typically this is concerned with social critiques and follows a social justice agenda. This is a crude distinction because sometimes detailed studies have strong social implications, and some social justice motivated research must become closely detailed for its substantiation. Despite this boundary blurring, an important distinction can be drawn between technical and (socio)political research. This distinction is also paralleled between four other dichotomies (or end points of 2 Mathematics has a long tradition of calculation aids and technologies (abacus, Napier‟s bones, logarithm tables, ready reckoners, slide rules, mechanical calculators, electronic calculators, computers) that have been influential in teaching mathematics. Of course mathematical apparatus such as the compasses, divider and ruler (or straight edge) have been in use since ancient times. In addition, for over a century specially designed mathematics teaching apparatus or manipulatives of all sorts has been developed, including Montessori‟s golden beads, Cuisenaire rods, Dienes‟ blocks, etc. (One of the two major mathematics teaching organisations in United Kingdom, the Association of Teachers of Mathematics was originally called the Association for Teaching Aids in Mathematics when formed in 1955.) The list of aids indicates the powerful impact of various technologies used in mathematics and its teaching (without even mentioning symbolic technologies such as Hindu-Arabic numerals, decimal place value notation, algebraic notation, geomentric figures, logical and proof notations, statistical tables and tests, computer software, etc.) This illustrates the technological, tool-based roots of much of mathematical pedagogy. 2 continua) that occur in the literature. These concern the identity of mathematics education academics, their academic interests, the underpinning methodological research paradigms, and the underlying base disciplines: 1. The academic as functional vs. critical (Lerman et al., 2003)3 2. The technical vs. social justice orientation of academic interests (Ernest 2007) 3. Interpretative and scientific paradigm research paradigm vs. Critical-Theoretic paradigm research, according to their interests (Habermas 1972) 4. The underlying disciplines: mathematics, psychology and pedagogy vs. philosophy and sociology.4 These are contrasted in Table 1. Table 1: Dichotomies paralleling the technical / political divide in research Domain of dichotomy Academic identity Academic interest Research methodology (paradigm) Base disciplines Technical research Functional Technical Interpretative, Scientific Social/Political research Critical Social Justice Critical Mathematics, Psychology, Pedagogy Philosophy, Sociology By showing the domains of difference as dichotomies I am of course simplifying complex relationships and continua. My aim is to demonstrate the validity and widespread presence of the distinction, rather than claiming that the two positions are wholly disjoint, and that a single fault line divides all of these domains of dichotomy in the same place. Because of the underlying diversity between these two positions, mathematics education might be said to suffer from a technical/ political divide in research. What I have labeled as technical researchers can regard social and political research as too diffuse and as irrelevant to the classroom the teaching and learning of mathematics; perhaps even a political distortion. In contrast, social/political researchers can regard technical research as overly narrow and detailed, and tacitly supportive of the political status quo through its failure to engage with larger socio-political issues. Such differences are exacerbated by the lack of shared theories or underlying disciplines of the two sides. Is it possible to bridge this divide? A shared „super theory‟ might offer grounds – if not for reconciliation – at least for using the same theoretical language. This might be the aim of some ambitious projects such as that of Godino in his grand onto-semiotic model of mathematics education (Godino, Batanero and Vicenc 2007), although I have yet to see it applied to politically orientated research. Instead, what I offer here is something rather more modest, a proposed unit of analysis as a shared theoretical basis or language of description. Since mathematics education is by its very nature an interdisciplinary field of study the question is, can a single unit of analysis be found to link the disparate domains that make up the field? Asking for an overall unit of analysis for mathematics education is very ambitious, 3 In this research more complex distinction are drawn using 2 axes (1) the form of engagement (functional vs. critical) and (2) positioning in overall activity (looking inwards or outwards) resulting in four academic „types‟. 4 Pedagogy is not a discipline in itself, nor does it rest on an underlying discipline – rather it rests on an applied inter-disciplinary area. The lack of an underpinning discipline for pedagogy is reflected in the lack strong theories in research in the area which, with the possible exception of the Theory of Didactic Situations (Brousseau 1997). The area also often draws upon information and communication technologies, itself a recent interdisciplinary development. 3 given that it is first necessary to show that each of the four elements of mathematics education listed above can itself be based on an individual unit of analysis. Only when this challenge has been met then is it necessary to show that there is a „super unit‟ of analysis that can serve as a basis for all four of these element simultaneously. This is what I propose to do in this paper, after I have first clarified what is meant by the term „unit of analysis‟. The Unit of Analysis Across the social sciences a number of authors have proposed or called for a unit of analysis. For example, Demorest (1995) proposes the personal script as a unit of analysis for the study of personality. More generally, in Wikipedia it is suggested that the unit of analysis is the focus of any research study in the social sciences. “The unit of analysis is the major entity that is being analyzed in the study. It is the 'what' or 'whom' that is being studied. In social science research, typical units of analysis include individuals (most common), groups, social organizations and social artifacts.” (Wikipedia 2010) This is widespread and similar descriptions appear in research methodology texts, such as Trochim and Donnelly (2007). In addition, the term unit of analysis is also is used in statistical methods and research methodology to describe what is taken as a unit for statistical analysis, e.g., as in Knapp (1977). Hopkins (1982), for example, discusses the methodological choice of group means versus individual observations in a study without any concerns about the ontological implications of such a choice. These are legitimate but restricted usages of the term unit of analysis, and I shall term these them methodological. These usages do not correspond to the central notion or usage I wish to focus on here. What I wish to signify by unit of analysis goes beyond simply being the methodological focus of a study. As well as serving as a methodological focus it is intended that a unit of analysis should be a prototype or microcosm that represents the key relationships as well as the entities of a study. I term this the ontological use or meaning of the term.5 This expanded idea is better captured by Eckert and McConnell-Ginet (2003) who introduced the idea of community of practice to sociolinguistics as their unit of analysis in research on language and gender. They chose community of practice as their unit because, as they put it, they wanted a smaller unit than a social network. Their unit of analysis reflects the relationships they regard as central to their field of study, and in particular the speaker‟s agency. Co-membership of a community of practice is defined by them on three criteria: mutual engagement, a jointly negotiated enterprise, and a shared repertoire. Thus the term „unit of analysis‟ is employed by Eckert and McConnell-Ginet in a deeper way to embody the prototypical unit in terms of both the entities studied and their relationships. As I shall elaborate below, the choice of community of practice as a unit of analysis in this ontological sense is widespread both across the social sciences in general, and in mathematics education research as well. In modern times the concept of unit of analysis was first foregrounded by Vygotsky who argued that psychology needs to be founded on such a unit. He rejected the stimulus-response unit as proposed by behaviourists and first proposed word meaning as his unit. The idea is that, just as in chemistry and physics in which all matter can be based on the atom or molecule as a unit (ignoring sub-atomic particle physics that goes even deeper), so too any other 5 Evans (2011) argues that the methodological/ontological distinction is not as clear cut as I claim, and that what I have termed methodological uses of the term unit of analysis have deeper ontological implications than just statistical convenience. In some ways this parallels Quine‟s (1969) argument that the range of the variables involved in any theory or language usage defines or enlarges the boundaries of its ontological commitments. 4 science or field of study ideally should be based on an irreducible elementary assemblage of elements, its unit of analysis.6 Historically, a number of theorists have argued that a unit of analysis, or as it was alternatively described, an explanatory cell, is needed in different fields of study. Goethe (1996) described the need for an underlying basic cell form or Urphänomen (ur-phenomenon) from which all more elaborated forms could be built up. Hegel (1822) argues that private property plays an equivalent role. In the Philosophy of Right Hegel proposes that all the social and political phenomena of the modern nation state grow out of the notion of private property, which he calls „abstract right‟ – the cell or unit of analysis for what Hegel called „objective spirit‟. Marx (1867) proposes the commodity relation (the exchange of commodities between persons) as the unit of analysis of his political economics. His major work Das Kapital bases its critique of capitalism and the related organization of society on this unit of analysis. More recently the behaviourists, and in particular Pavlov, posited the conditioned reflex (stimulusresponse) as a unit of analysis. However, ultimately it is the work of Vygotsky (1934) that raised widespread awareness of, and interest in, the concept of a unit of analysis. As is well known, word meaning is stated to be Vygotsky‟s (1934) unit of analysis in his seminal work Thought and Language (also translated as Thinking and Speech in Vygotsky, 1987). However, scholars have argued that in fact tool-mediated action serves as his later and more developed unit of analysis (Zinchenko 1985), and of course this latter serves as the basis for the unit of analysis of Activity Theory (Leontyev 1978). Lerman (2000), drawing on Minick (1987) and Zinchenko (1985), offers a nuanced account of the development of Vygotsky‟s thought. This includes the shift between different units of analysis in his work, from word meaning in earlier work to socially embedded tool-mediated action, in his later work. Despite these changes, Vygotsky is clear about the essential aspects of a unit of analysis, understood in what I term its ontological sense. The unit “designates a product of analysis that possesses all the basic characteristics of the whole. The unit is a vital and irreducible part of the whole.” Vygotsky (1987: 46, original emphasis). One of Vygotsky‟s lasting contributions is the theoretical importance and prominence he accorded to the concept of a unit of analysis. “The basic concept of using a unit of activity [analysis] that maintains the functions of the larger system is one of Vygotsky‟s important contributions” (Rogoff 1998: 683). Rogoff goes on to cite corroborations of this judgement in the work of Bakhtin, Cole, Leontyev, Wertsch and Zinchenko. Building on the work of Vygotsky, and further developing his concepts, Blunden (2009, 2010) argues that if a unit of analysis is to respect Vygotskyan ideas it needs to be a prototypical entity within a study that serves to represent the key relationships involved, possibly in simplified form. In order to fulfil this function it needs to have the following properties. 1. It should be a singular and indivisible entity (not a collection or combination) so that it cannot be broken down into simpler parts that can perform the same function. 2. It should exhibit the central properties of a class of more developed phenomena. As the most primitive of its type, it should be able to serve as a prototype or basic form for the area it represents 6 The molecule is an irreducible unit – not because it does not have parts - but because further analysis into elements or particles results in the loss of its characteristics, especially its chemical properties. 5 3. It should itself be an existent phenomenon that can be located within the realm of entities with which the subject area is concerned. A number of authors have proposed different units of analysis corresponding to these notions, that is, defined ontological units of analysis. Radzikhovskii (1991) offers an account of dialogue as a unit of analysis of consciousness. Lave and Wenger (1991) identify the informal community of practice as their unit of analysis, as does Wenger (1998) in his subsequent work. Likewise, Brown and Duguid (2001) take the community of practice as a unifying unit of analysis for understanding knowledge in the corporation or firm. Thus the idea of unit of analysis, with the deeper ontological meaning, is widely used in the social sciences. My intention in this paper is to apply this idea to mathematics education. In each of the following sections I present a unit of analysis for the four commonplace-based domains of mathematics education listed above. I then go on to suggest that Blunden‟s (2009, 2010) own proposed unit of analysis (the collaborative human project) for an interdisciplinary theory of activity can serve as an overall unifying unit of analysis for mathematics education. 1. THE NATURE OF MATHEMATICS, THE PHILOSOPHY OF MATHEMATICS Traditional philosophy of mathematics has proposed a number of objective elements of mathematics as serving a function similar to a unit of analysis. These elements extend, in order of increasing complexity, from the mathematical concept, term (or expression), proposition or sentence, proof, to the mathematical theory. Probably the most common item used equivalently to a unit of analysis for mathematics is the proposition or sentence, since this is the smallest unit with a full epistemological function, namely expressing a claim or assertion that can be characterised as true or false. A major problem with any of the putative units of analysis in this list including the sentence is that they objectify and mystify mathematical knowledge and its components, expressing it in a self-subsistent form that has no essential relation, as many persons see it, with human beings. Philosophical positions that follow this line put mathematical knowledge beyond the reach of human making or shaping. Of course there are good arguments for objectifying mathematical expressions and knowledge, and there is a long and honourable tradition in epistemology and the philosophy of mathematics that proposes such views and indeed such a philosophy. I will not rehearse the arguments that I and others have offered elsewhere in critique of what may be termed absolutist philosophies of mathematics (Ernest 1991, 1998, Hersh 1997). However, from a humanistic perspective, such an objectification appears to be an unjustified mystification. Although I do not expect this assertion to convince absolutists, I shall assume this perspective and develop the ideas here in line with my social constructivist philosophy presented in preliminary form in Ernest (1991) and in developed form in Ernest (1998). On this basis, what I propose to do here is to adopt as a unit of analysis the underlying idea of persons in conversation which I have previously used as an epistemological unit (Ernest 1998). The idea of persons in conversation as epistemological unit in the social constructivist philosophy of mathematics rests on a synthesis of the philosophical ideas of Wittgenstein (1952) and Lakatos (1976). Wittgenstein bases his philosophy on the notions of language games and forms of life. He proposes that humans share forms of life that are social activities with shared purposes. Within these activities humans operate with language games that are 6 part of, and embedded in, these forms of life and are the semiotic means of working towards, and coordinating cooperation in achieving the shared purposes and goals. Persons in conversation with the implicit social context of such activities acknowledged thus corresponds to Wittgenstein‟s basic ideas of language games in forms of life. Lakatos (1976) argues that the development of mathematical knowledge, including its warranting, takes place through proofs and refutations, following a Logic of Mathematical Discovery. In this process or Logic, based on Hegel‟s Dialectic, different speakers/authors take turns in proposing and critiquing mathematical concepts, propositions, proofs and theories. This too can therefore be characterised as a conversation between persons, although Lakatos would not be happy of the foregrounding of the social dimension of knowledge construction. Thus the idea of conversation between persons as a unit of analysis for the philosophy of mathematics builds on the foundations of both Wittgenstein‟s and Lakatos‟ work, and in my account in Ernest (1998) also sits on Vygotsky‟s psychology. As a unit of analysis conversation can be represented as a triple or diagrammatically as a triangle with the vertices corresponding to Speaker/Proposer, Listener/Critic, and Text (semiotic expression of mathematics, both formal/written and informal/spoken/otherwise represented). The roles of Speaker and Listener alternate in conversation, and both roles are internalized within a single person (following Vygotsky‟s theories, but also in accordance with Mead 1964). Indeed I doubt that a person can be a competent mathematician without such internalization of both these roles, as one needs to propose and construct new, putative mathematical knowledge, and then critique and edit it oneself, in order to shape it in accessible form so that it can be responded to, although not necessarily accepted, by others. Thus a mathematical author incorporates criticisms and refutations that public presentation will inevitably bring, insofar as she can anticipate them, in mathematical texts. Furthermore, in any true conversation the participants need to alternate between the roles of speaker/listener and proposer/critic. Figure 1: Conversation as the Unit of Analysis for Mathematics Mathematical Text Speaker / Proposer Listener / Critic 7 Note that by speaker I also include writer, the utterer of the text in some mode or other. Likewise the listener also incorporates the reader of the text. Thus the unit of analysis for mathematics can be represented as in Figure 1. In this figure, the arrow between speaker and listener indicates the back and forth flow of conversation, mediated by the text. The arrow from the speaker to the text shows the relationship of the author to the text indicating its production and revision, and the reverse direction arrow shows the author‟s reading of her own text, either in original or modified form. The arrow between the text and the reader indicates similar bidirectional relations. And as indicated above, the roles of speaker and listener are alternated/switched. What Figure 1 shows is the path of a single cycle in a conversation, for conversations involve a repeated cycling or spiralling as speakers utter or propose a text, followed by listeners responding to this text and modifying it or uttering their own responsive text. This back and forth between speaker and listener each modifying the text (sometimes purely by appending their own response) continues repeatedly with other persons participating. The number of persons involved can be anything greater or equal to two (or one, in an internalized conversation), and indeed the identities of the speaker, listener and text can and often will change during the process of conversation. Furthermore, conversations can be extended indefinitely over time and space through repeated face to face meetings, or through information and communication technology mediated communications such as written texts, letters, telephone conversations, electronic exchange of documents, and so on (Ernest 1994a). Conversation as a unit of analysis for mathematics shows the mechanism or communicational means whereby mathematical knowledge productions are created, reformatted, questioned, modified, warranted and transmitted. This unit of analysis emphasizes that mathematical knowledge representations are always materially present in some form and are an organic and evolving part of human culture. However, the material presence of texts or other knowledge representations does not mean that knowledge can be turned into a material product. Only in the presence of a reader or interpreter does a text become meaningful. Furthermore a person can only act as a reader or interpreter after enculturation, that is after an extensive social apprenticeship in language use. So the social aspect of conversation cannot be meaningfully stripped away to reveal a new objectification of knowledge. If it were so, conversation could not serve as an epistemological unit, let alone a unit of analysis. Although the insight that conversation works as a unit of analysis may be controversial in the philosophy of mathematics, beyond in the social sciences it is more commonplace. Collingwood (1939) proposes the epistemological project of substituting a 'logic of question and answer' for a logic of propositions. In Gadamer‟s (1965: 333) view the quest for knowledge "contains within itself the original meaning of conversation and the structure of question and answer". And lastly, according to Harré (1990: 117) “in providing an ontology ... we must take the individual speaker locked into a pair with an interlocutor as the conversational unit.” 2. LEARNING MATHEMATICS There has been a great deal of attention given to the theories of learning mathematics over the past two decades (see, e.g., Steffe et al. 1995, Sriraman 2010) with different forms of constructivism much discussed and criticized. Various forms of individual or radical 8 constructivism seem to be based on a binary relationship between the learner or subject and its environment or object. In such models the learner actively interacts with the environment both selecting what it samples from the environment and actively interpreting its experiences of the environment and regularities that occur within them to build up a growing knowledge base and interpretative framework. This model has strengths that derive from its recognition of 1. The experiential basis of all knowledge, 2. The importance of interpretation and the active construction of meaning, and 3. the learner and subject as a growing being, whose interpretative framework is, at least partially, self-constructed. However, the weakness of this model is that it describes equally well the growth of knowledge of an amoeba, a shark or a higher primate. It omits the fact that human beings are fundamentally social creatures whose cultural inheritance (most notably language) natures and shapes the way that they (we) interact with the world and each other. Thus, for example, Bottino and Chiappini (2002) argue that the individual student in interaction with tools (e.g. computer software) is an inadequate unit of analysis because of the stripping away of the social context. Sfard (1998) distinguishes between two metaphors for learning: the acquisition and the participation metaphors. Constructivism in its individualistic forms described above falls under the acquisition metaphor because it reifies knowledge as something to be gained and acquired, and thus as something that can be transmitted or delivered. But this perspective makes the category mistake of thinking that when learners demonstrate competence or abilities they „have‟ or acquire something, rather than they are just able to do something. As in traditional absolutist accounts of the nature of mathematics, from the acquisitionist perspective learning is seen as based on mathematical knowledge as externalized objects such as concepts, rules or truths (propositions or theorems) and methods, that can be acquired or owned by learners. These objects would be the unit of analysis from this perspective. In contrast Sfard‟s (1998) participation metaphor foregrounds the fact that knowing is manifested in doing, and it also requires recognition of the constitutive and ineliminable social dimension. Doing is action in the real world that we all inhabit, not in some fictional space of reified concepts and knowledge. It is learned socially by participation in relationships or human communities, even if only fleetingly. In these social contexts one learns to use a range of cultural tools including the full range of communicative modes and technologies. Some key examples of these in mathematics are gestures, signs, spoken and written language, mathematical notations, pens, books, electronic calculators, computers, and the World Wide Web. With regard to the learning of mathematics a number of authors agree that the isolated individual is not an adequate unit of analysis. Cobb (2000) argues that the mainstream characterisations of the individual as the unit of analysis within cognitive psychology have been delegitimized by situated accounts of intelligence and learning. Likewise, as mentioned above, Bottino and Chiappini (2002) argue that the individual student alone in interaction with tools (e.g. computer software) is an inadequate unit of analysis. Lerman (2000) is critical of any unit of analysis based on the isolated individual and proposes the person-in-practice or mind-in-society as unit of analysis. Perhaps playfully he goes on to extend this unit of analysis to the rather Byzantine ideas of person-in-practice-in-person or mind-in-society-inmind. Irrespective of this formulation his main point is that the social dimension is an integral part of both self and learning that no adequate unit of analysis can ignore or factor this out. Lave and Wenger‟s (1991) „community of practice‟ idea has been widely promoted as a unit of analysis for learning (e.g., Boylan 2007, Graven & Lerman 2003). Its adoption is not 9 without dissenters, such as Boaler (2000b) who argues that it does not adequately cover formal learning situations, such as schools and universities. In keeping with the thrust of these developments in my quest for a unit of analysis for human learning I adopt a Vygotskyan or neo-Vygotskyan social constructivist theory, This sees an essential role for other humans (i.e., participation) in all but the most rudimentary (preverbal) human learning. Even there, gestures and touch play a key role from day one (birth), and represent a primitive form of conversation. Vygotsky sees learning as taking place primarily in the learner‟s Zone of Proximal Development. This is the cognitive space in which a more capable other, a relative expert (no pun intended), helps a less capable learner master some tool-based action in pursuit of a goal. Such tools can include language, eating utensils, toys, algebraic symbolism, computers, cars, etc., in other words, all the tools, materials and information and communication technology artefacts that humans have developed over that past few hundred thousand years. Thus the concept of tool or cultural artefact is taken in the broadest sense from material tools such as a stick or hammer or jet plane, to conceptual and semiotic tools and artefacts such as language, texts, performed plays, paintings, ideas and theories. Tool-mediated action is the unit of analysis for this theory of learning. It is represented as a triple with the Learner / novice in one position, the teacher / expert in another, and the action as the third apex (with the mediating tool/cultural artefact within it, sometimes implicitly). This triple as the unit of analysis for learning theory is represented as in Figure 2. Figure 2: Tool-Mediated Action as the Unit of Analysis for Learning Theory Action mediated by Cultural Tool Teacher / Expert Learner / Novice In Figure 2 the arrow between teacher and learner indicates the back and forth flow of actions, mediated by the cultural tool (including language). The arrow from the teacher to the tool shows this agent‟s active use of this tool, while the reverse arrow indicates that teacher is also attending to and interpreting the tool in action. The arrow between the tool and the learner indicates a similar bidirectional relationship. This could also be described as a conversation, and evidently resembles Figure 1 (Ernest 1994b). 10 According to this model, learner mastery of some action using a mediating tool or cultural artefact is the prototypical learning activity and takes place within the learner‟s ZPD. Typically, as shown in the unit of analysis illustrated in Figure 2, this involves a more capable other guiding the learner. Learning on one‟s own can be understood as a simplified version of this triad where the social element is implicit in the tool/cultural artefact. A learner reading a book or solving some mathematical problems on her own can only do this because of earlier work within such a triad, with guided use of a tool, under the supervision of a more capable other. It could also be interpreted in terms of the learner having internalized the role of the teacher. 3. TEACHING MATHEMATICS The teaching of mathematics is a complex affair that can be represented relatively simply by a triad as unit of analysis. The three elements are two asymmetric partners, the teacher and student, plus the mathematical task used for instruction. This task is presented as a text using one or several of a variety of means and modes of representation. Thus the proposed unit of analysis is very similar to that for learning mathematics shown in Figure 2. In keeping with modern semiotics I want to understand a text as a simple or compound sign that can be represented as a selection or combination of spoken words, gestures, objects, inscriptions using paper, chalkboard or computer displays, as well as recorded or moving images. Mathematical texts can vary from, on the one hand, printed documents that utilize a very restricted and formalized symbolic code in advanced mathematics teaching, to, on the other hand, multimedia and multi-modal texts, such are used in kindergarten arithmetic. The latter can include a selection of verbal sounds and spoken words, repetitive bodily movements, arrays of sweets, pebbles, counters, various objects including specially designed structural apparatus, sets of marks, icons, pictures, written language including number words, symbolic numerals, and so on. Texts figure in the teaching of mathematics in two ways, as texts authored or presented by the teacher to the student, and by responsive texts constructed by the student and directed back to the teacher. The first of these is primarily the task used in mathematics teaching. Such a task has the following properties (based on Ernest 2008): 1. It is an activity that is externally imposed or directed by a person or persons in power (the teacher) representing and on behalf of a social institution (e.g., the school). 2. It is subject to the judgement of the persons in power (the teacher) as to when and whether it is successfully completed. 3. It is a purposeful and directional activity that requires human actions and work in the striving to achieve its goal or goals. 4. It requires learner acceptance of the imposed goal, explicitly or tacitly, in order for the learner to consciously work towards achieving it. 5. It requires and consists of working with texts: both reading and writing texts in attempting to achieve the task goal. 6. It carries with it set of assumptions about what to attend to and what to ignore among the available meanings (Gerofsky 1996). 11 Figure 3: The Teacher-Student-Task Triple as the Unit of Analysis for Mathematics Teaching Task presented via text Teacher Learner There is a very large literature on educational tasks in general and on the role and variety of mathematical tasks used in the teaching and learning of mathematics. For example Brousseau (1997) proposes the well known theory of didactical situations concerned with the nature of mathematical tasks and their relationship with the social context of the teaching of mathematics. Figure 3 shows the Teacher-Student-Task triple as the unit of analysis for mathematical teaching. Teacher communication with student(s) is mediated by texts presenting mathematics teaching/learning tasks (and by student responses). For present purposes it is enough to point out the overall structure is that in which a teacher communicates a mathematical task to a student, that is directs a student‟s attention to a text embodying a mathematical task, and possibly directs the student‟s attention beyond it to its mathematical or social context. This is the instructional direction of communication (left to right in Figure 3). However, as discussed above, and indicated by the double headed arrows, such traffic is not intended to be unidirectional only. Students construct their own texts in response to teacher texts and tasks, and then communicate these to the teacher in one or more of the available modes, including oral, written on paper, written on chalkboard or electronic whiteboard, by electronic transmission, etc. They may even pose problems themselves and submit them to the teacher for approval. This is the responsive or assessment direction of communication (right to left in Figure 3). The teacher responds to such student texts by assessing them and feeding back further responses in the instructional direction, providing either informal or formal assessment responses to the student, and possibly also providing responses to others too, given the broad and varied functions of assessment. The triple as illustrated in Figure 3 is not a controversial proposal as a unit of analysis for mathematics teaching. Indeed similar diagrams are widespread in the literature. More likely the criticism is that this triple is so rudimentary, so simplistic, that it adds little to the understanding of the teaching and learning of mathematics. However, its emphasis on the 12 inescapably mediated nature of the teaching/learning of mathematics, the centrality of textually presented tasks, and the essentially bi-directional direction of teacher-student interaction are of value because they are not always evident in accounts of mathematics teaching. Beyond these aspects, the unit of analysis is presented here as one that can be subsumed by a still more general unit, which is the overall purpose of this paper. 4. THEORY OF SOCIETY OR THE SOCIAL CONTEXT A theory or model of the social context of mathematics education, one that fulfils all of the theoretical needs of the area, is not something easily found. On the one had it needs to accommodate the macro-social context, including the cultural, social, societal and political milieu of mathematics education in its theoretical and practical forms. On the other hand it must accommodate the micro-social, interpersonal, interactional aspects including the social construction of agency, self and identity. In addition there must be space in it for knowledge, especially mathematical knowledge. A number of theories have either been used in mathematics education or appear to have potential for such use. Some accommodate the macro-social but seem to have less potential for the micro-social, such as: Marx‟s (1867) ideas of society as economic base and superstructure (and its development by Gramsci, Althusser and others), Pierre Bourdieu‟s notions of reproduction and Habitus (Bourdieu and Passeron 1977) Basil Bernstein‟s (1996) ideas of the social role of knowledge. Some theories are better on the micro-social but may have less potential for accommodating the macro-social or knowledge, such as: The Family as a model for society and the state, first found in Aristotle (1995) Freire‟s (1972) ideas of education as emancipatory, None of these above approaches provides a rich enough framework to encompass potentially all of teachers, students, school mathematical knowledge, tools, texts, institutions, roles, rules, aims, power, inequalities, and economic activity. Such models need to treat both social/structural inequalities in society and the formation of identity in individuals. One family of theories that has potential to accommodate both of the two realms are various versions of Activity Theory. Lave and Wenger‟s (1991) model of a community of practice, Engeström‟s (1987) extension of Activity Theory, Blunden‟s (2009) interdisciplinary version of Cultural Historical Activity Theory. Lave and Wenger‟s (1991) model of a community of practice suggests a unit of analysis consisting of participants in the practice (both novices/apprentices and experts/masters) and the practice itself. The practice is organized around a purposive activity. Although it provides a good way to conceptualize productive practices, it has not been elaborated to encompass large scale social divisions (although Wenger 1998 is a possible exception to this claim). As mentioned above, it has also been criticised for not adequately covering formal learning situations (such as schools and universities) as opposed to informal workplace contexts (Boaler 2000b). However, Blunden‟s (2009) Cultural Historical Activity Theory extends some its key elements so I shall consider this instead. 13 Engeström‟s (1987) version of Activity Theory with its well known set of nested triangles (Figure 4), represents social relationships and related elements. Engeström (1987) claims that in order to analyze composite phenomena like social interactions and interpersonal relationships, one needs a new unit of analysis. He argues that his theory is “a strong candidate for such a unit of analysis in the concept of object-oriented, collective, and culturally mediated human activity, or activity system” (Engeström & Miettinen 1999: 9). Figure 4 Engeström’s dialectical triangle Figure 4 shows the dialectical triangle developed by Engeström (1987), used as a model for analysing activity systems. The elements of such a system include the object, subject, mediating artefacts (signs and tools), rules, community, and division of labour. These lead to the outcome of the system. The internal tensions and contradictions in such a system are the driving force behind change and development (represented in Fig. 4 by three internal double headed arrows, each originating from an apex). These contradictory forces are accentuated by the continuous transformations that take place within and between the components of this system and between the hierarchical levels of activity, action and operations (Engeström 1999, Leontyev 1978). This is not the place here to elaborate Engeström‟s (1987) version of Activity Theory, but it is clear from its elements that it is potentially a good candidate for accommodating the social context of mathematics education. It includes relationships between individual (subject), object, outcome, community, social rules, division of labour. From these it is a short step to the environment, instruments of production, production itself, distribution, exchange and consumption. The upper triangle of subject, object, and instruments or tools has been shown a capable of modelling the development of individuals and identity within second generation Activity Theory7 (Alvarez and Del Rio 1999, Gee 2001). However, as Blunden (2009) argues, such a complex as is illustrated in Figure 4, with all of the elements listed, even with redundancies or reducible elements eliminated, can hardly be regarded as a simple unit of analysis. It is a macro-model, rather than a unit of analysis, from which elements and relationships are selected to be foregrounded. Furthermore, many of these elements are secondary or derived from the fundamental unit. ... attempts to incorporate „supra-individual‟ aspects of society such as social division of labor, norms and rules, systems of production and distribution, and so on, fail to provide 7 Núñez (2009), drawing on Engeström (2001), distinguishes between three generations of Activity Theory based on the work of: 1. Vygotsky, 2. Leontyev, 3. Engeström, each with their own unit of analysis. 14 the basis for a unit of analysis. The fact is that these societal phenomena exist for the individual only through (1) the use of artifacts which originate and carry culturally determined meaning from outside the immediate setting of their use, and (2) the regularity of expectations and experiences of interaction with other individuals. (Blunden 2009: 19) Because of this irreducible complexity I reject the use of Engeström‟s (1987) version of Activity Theory as a unit of analysis for the social context of mathematics education. This in no way casts any shadow on its utility, but simply on its ability to serve the function presently sought. Blunden (2009) in his version of Cultural Historical Activity Theory addresses the issue of finding a unit of analysis directly. He fixes upon „project collaboration‟ – the interaction between two or more persons in pursuit of a common objective (p. 1) and the “artefactmediated collaboration of individuals in common project” (op. cit. p.19) as his unit of analysis. He goes on to elaborate this notion further. A project‟ differs from „an activity‟ understood à la Leontyev, as a system of actions directed towards a given socially defined object in several respects. Firstly, a project includes the individuals and all the artefacts and norms and rules indigenous to that project. A project is always directed towards some ideal. Projects need to be understood as historically articulated, and individual projects carry forward projects that may have a long history. In this sense the idea of project is subject-centered rather than objectcentered. (op. cit. p.19) From this idea Blunden is able to derive the secondary notions so prominent in Engeström‟s (1987) account. “Notions of social norms, division of labor, markets, and so on, must therefore be derived from their foundation in the artifact-mediated collaboration of individuals in common projects or „project collaboration‟. “To be clear, „project collaboration‟ is not something different from activity, but simply a unit of activity, a unit of joint mediated activity.” (Blunden 2009: 19). Now the question arises, to what extent can the notion of project collaboration serve as a unit of analysis for the social context of mathematics education? Can it accommodate different social groups, inequalities, hierarchies, curriculum contestation, competing and rival groups with different ideologies as well as small scale phenomena such as learning careers and identity projects? Blunden (2009, 2010) broadens and deepens his notions in ways that make such coverage plausible. He notes that projects include conflict as well as cooperation. He sees cooperation (pursuing the same end using some division of labour, whether natural or artificial) and conflict (pursuit of mutually exclusive states of affairs) as special, limiting cases of collaboration. He also remarks on other important limiting cases of collaboration concerning „ownership‟ of the project: solidarity, where one subject voluntarily subordinates themself to the other‟s ends, and cooption, where one subject subsumes another under their own project. He argues that collaboration not only provides a starting point for science, but is also normative and thus provides a reference point for ethics. Blunden analyses three broad types of cooperation: hierarchy, exchange and collaboration, which between them potentially accommodate all forms of social organisation. He draws on John Steiner‟s (2000) categories 15 of different types of collaboration to show the range of projects and activities that can be described or elaborated from his basic unit. Social movements, nations, religious communities all constitute themselves as projects. The pursuit of an art or profession, is also constituted as a project, with practitioners striving to perfect the art, each generation standing on the shoulders of the generation before. (Blunden 2009: 24) The outcome is a very promising unit, within Blunden‟s particular take on Cultural-Historical Activity Theory, on which to base an analysis of the leading social phenomena, in general, and the social context of mathematics education, in particular. So much for it as a potential unit for macro-social phenomena. What about micro-social phenomena such as individual identity? A number of authors regard Activity Theory as a valuable theoretical tool for treating this area, e.g., Alvarez and Del Rio (1999), Côte and Levine (2002), Gee (2001), Rogers (2007) and Wenger (1998). Blunden sees such phenomena as accommodated within his own version of Activity Theory. When concepts first appear, they constitute projects, but in time, they become objectified and merge into the fabric of social life, the language and culture generally. Once a concept has become objectified, it ceases to have an independent life, but participates as an aspect of all subsequent projects. Some concepts however, not yet objectified, retain vitality, and constitute living, self-conscious projects. Consciousness is therefore constituted by participation in a multiplicity of different projects and activity organized around a multiplicity of different more or less independent concepts, which represent the sediment of past projects. (Blunden 2009: 25) Although not based on this particular formulation, within the mathematics education research community a growing body of research on identity and individual agency discusses or utilises Activity Theory as its basis, including Black et al. (2010), Boaler and Greeno (2000), Graven and Lerman (2003), Grootenboer et al. (2006), Williams, J. (n. d.). Thus the prospects appear optimistic for Blunden‟s (1009, 2010) project collaboration to serve as a unit of analysis for mathematics education. Collaborative Projects as the Unit of Analysis for Mathematics Education Figure 5 offers a representation of the collaborative project as unit of analysis. It comprises the individuals engaged in the project shown as participants 1 and 2. It also comprises the project itself with its goals and direction towards some object, and the tools and artefacts including norms, rules and roles indigenous to that project. In Figure 5 the arrow between the participants indicates cooperative activity, encompassed by the project itself. This provides both the direction of the activity as well as the means of accomplishing the project or at least the means of engaging in actions subsumed into the project. Does the collaborative project constitute a potential Unit of Analysis in the ontological sense? To answer this it must be seen to satisfy the three criteria proposed earlier in the paper. First of all, it is minimal in that cannot be broken down into simpler parts that can perform the same function. A project cannot exist without the agency of its participants, and it cannot be a 16 collaborative project without more than one participants (except in the internalized ways described above). Second, a collaborative project is not an abstraction, but an existent phenomenon, for every instantiation is constituted by the historically situated activities of real persons. Third, as demonstrated in the previous section, in outline at least, collaborative projects exhibit the central properties of a class of more developed phenomena on both the macro-social and micro-social planes. It only remains to show that it is a prototype or basic form for the subareas of mathematics education discussed above. Figure 5: The Collaborative Project as Unit of Analysis for Social Phenomena Collaborative Project Participant 1 Paricipant 2 Without labouring the point it is pretty evident from the form of the Figures 1, 2 and 3 that these can be subsumed into the collaborative project form as represented by Figure 5. Each has been represented as a triangle with persons or persons-in-roles as represented by the two base vertices. In each figure human activities or the tools resulting from such activities have been represented as the apex. Whether this is text exchanged and co-constructed as in Figure 1 representing the conversational nature of mathematics, or as in Fig. 2, during the learning of mathematics, whether it represents actions mediated by the cultural tools in Figure 3, during the teaching of mathematics, these are all fundamentally analogous or inter-translatable.8 What the collaborative project form adds, as well as generalizing them all, is to emphasize the goals and directedness of all of these fundamental units of activity. The creation of mathematics, and its learning and teaching, all involve persons in relationships with texts and cultural tools as mediating means that are ordered by the goals and purposes of the activities, the projects. 8 In this brief paper I somewhat gloss over the differences between the apex elements in Figures 1 to 3 (be they human activities or tools). Thus my argument only demonstrates the plausibility of the unification of the various units of analysis under the single collaborative project unit, and needs to be more extensively argued and elaborated to be fully convincing. 17 Thus I have come to the end of my quest. I have demonstrated that it is plausible that the collaborative project, at least potentially, can serve as a unit of analysis for mathematics education. Furthermore, it does so in the ontological sense distinguished above. What this shows is the perhaps surprising fact that that same unit can be applied not only to the teaching and learning of mathematics, but also to the nature and philosophy of mathematics and to the social context of mathematics education too: not only for technical research, but also forpolitical and social research. The value of this is that it leads to an interdisciplinary unification. It links the elements of mathematics education that are drawn from philosophy, psychology, pedagogy and sociology. In doing so it offers a bridge across the technicalpolitical divide. It presents a single theoretical underpinning that allows the two camps of technical and social-political researchers to communicate through a shared language. No longer need these two camps be separated by the scale or mode of description of their concerns. However, it must be acknowledged that this proposed unification does not come without presuppositions and indeed costs. It is persuasive only if a social view of teaching, learning and mathematics, and in particular an Activity Theoretical account is adopted. But the form of Activity Theory used here is not ideologically narrow, and it is open to expansion and further elaboration to better theorize the phenomena involved. So a theoretical straitjacket is not part of the cost, even if a social perspective is required for this solution. REFERENCES Alvarez, A., and Del Rio, P. (1999) „Cultural mind and cultural identity: Projects for life in body and spirit‟, in S. Chaiklin, M. Hedegaard & U. J. Jensen, Eds., Activity theory and social practice: cultural historical approaches, Aarhus: Aarhus University Press, 1999: 302-324. Aristotle (1995) Politics (transl. E. Barker), Oxford: Oxford University Press. Bartolini Bussi, M. G. (2005) „When Classroom Situation Is the Unit of Analysis: The Potential Impact on Research in Mathematics Education‟, Educational Studies in Mathematics Vol. 59, No. 1/3 (2005): 299-311. Bernstein, B. (1996) Pedagogy, Symbolic Control and Identity: Theory, Research, Critique, London: Taylor & Francis. Black, L., Williams, J., Hernandez-Martinez, P., Davis, P., Pampaka, M. and Wake, G. (2010) „Developing a „leading identity‟: the relationship between students‟ mathematical identities and their career and higher education aspirations‟, Educational Studies in Mathematics, Vol. 73, No. 1 (2010): 55-72. Blunden, A. (2009) „An Interdisciplinary Concept of Activity‟, Outlines, No. 1 (2009): 1-29, consulted 5 May 2011 at URL <http://ojs.statsbiblioteket.dk/index.php/outlines/article/viewFile/2119/1877> Blunden, A. (2010) An Interdisciplinary Theory of Activity, Leiden and Boston: Brill: Boaler, J., and Greeno, J. G. (2000) „Identity, agency, and knowing in mathematics worlds‟, in J. Boaler, Ed., Multiple perspectives on mathematics teaching and learning Westport, CT: Ablex, 2000: 171-200. Boaler, J., Ed., (2000a) Multiple Perspectives on Mathematics Teaching and Learning, New York: Praeger. Boaler, J. (2000b) „Introduction: Intricacies of Knowledge, Practice and Theory‟, in Boaler, J., Ed., Multiple Perspectives on Mathematics Teaching and Learning, New York: Praeger, 2000: 1-17. Bourdieu, P. and Passeron, J. C. (1977) Reproduction in Education, Society and Culture, London: Sage. Boylan (2007) „Teacher Questioning in Communities of Political Practice‟, Philosophy of Mathematics Education Journal No. 20 (June 2007), consulted 1 May 2011 at URL <http://people.exeter.ac.uk/PErnest/pome20/index.htm> Brousseau, G. (1997). The theory of didactical situations in mathematics: Didactique des mathématiques, 19701990. (N. Balacheff, M. Cooper, R. Sutherland, & V. Warfield, Eds. and Trans.). Dordrecht, The Netherlands: Kluwer. Brown, J. S. and Duguid P. (2001) „Knowledge and Organization: A Social-Practice Perspective‟, Organization Science, Vol. 12, No. 2 (March-April 2001): 198-213. Cobb, P. (2000) „The importance of a situated view of learning to the design of research and instruction‟, in Boaler, J., Ed., Multiple Perspectives on Mathematics Teaching and Learning, New York: Praeger, 2000: 45-82. Collingwood, R. G. (1939) An Autobiography, London: Penguin Books, 1944. 18 Côte, J. E., and Levine, C. G. (2002). Identity formation, agency and culture: A social psychological synthesis, Mahwah, New Jersey: Lawrence Erlbaum. Demorest, A. P. (1995) „The Personal Script as a Unit of Analysis for the Study of Personality‟, Journal of Personality, Vol. 63: 569–592. Eckert, P. and McConnell-Ginet, S. (2003) Language and Gender, New York: Cambridge University Press. Engeström, Y. (1987): Learning by Expanding: An Activity-Theoretical Approach to Developmental Research. Helsinki: Orienta-Konsultit. Engeström, Y. (1999) „Activity theory and individual and social transformation‟, in Y. Engeström, R. L. Punamaki-Gitai, & R. Miettinen, Eds., Perspectives on activity theory, Cambridge: Cambridge University Press: 19-38. Engeström, Y. (2001) Expansive Learning at Work: toward an activity theoretical reconceptualization‟ Journal of Education and Work, Vol. 14, No. 1: 133-156. Engeström, Y. and Miettinen, R. (1999) „Activity theory: A well-kept secret‟, in Y. Engeström, R. Miettinen and R. L. Punamäki-Gitai, Eds., Perspectives on activity theory, Cambridge: Cambridge University Press, 1999: 1-16. Ernest, P. (1991) The Philosophy of Mathematics Education, London, The Falmer Press. Ernest, P. (1998) Social Constructivism as a Philosophy of Mathematics, Albany, New York: SUNY Press. Ernest, P. (1994a)„The dialogical nature of mathematics‟ in Ernest, P., Ed., Mathematics, Education and Philosophy: An International Perspective, London, The Falmer Press, 1994: 33-48. Ernest, P. (1994b) „Conversation as a Metaphor for Mathematics and Learning‟ Proceedings of British Society for Research into Learning Mathematics Day Conference, Manchester Metropolitan University 22 November 1993, Nottingham: BSRLM, 1994: 58-63. Ernest, P. (2007) „Why Social Justice?‟, The Philosophy of Mathematics Education Journal, No. 21. <http://people.exeter.ac.uk/PErnest/>. Evans, J. (2011) Personal Communication, May 2011. Freire, P. (1972) Pedagogy of The Oppressed, London: Penguin Books. Gadamer, H. G. (1965) Truth and Method, (Trans. by W. Glen-Doepler), London: Sheed and Ward, 1979. Gee, J. P. (2001) „Identity as an analytic lens for research in education‟, Review of Research in Education, 25, 99-125. Gerofsky, S. (1996) „A linguistic and narrative view of word problems in mathematics education‟, For The Learning of Mathematics, Vol. 16, No. 2 (1996): 36-45. Godino, J. D., Batanero, C. and Vicenc, F. (2007) The onto-semiotic approach to research in mathematics, Zentralblatt fur Didaktik der Mathematik, Vol. 39: 127–135. Goethe, J. W. v. (1996) Goethe on Science. An Anthology of Goethe’s Scientific Writings, Selected and introduced by Jeremy Naydler, Edinburgh, UK: Floris. Graven, M. & Lerman, S. (2003) „Communities of practice: Learning, meaning and identity‟, Journal of Mathematics Teacher Education, Vol. 6, No. 2: 185-194. Grootenboer, P., Smith, T. and Lowrie, T. (2006) Researching Identity in Mathematics Education: The Lay of the Land, consulted 1 May 2011 via URL <http://www.merga.net.au/documents/symp12006.pdf> Habermas, J. (1972) Knowledge and Human Interests. London: Heinemann. Harré, R. (1990) „Explanation in Psychology‟, in Robinson, D. N. and Mos, L. P., Eds., (1990) Annals of Theoretical Psychology (Vol. 6), New York: Plenum Press: 105-124. Hegel, G. W. F. (1822) The Philosophy of Right, translated by T. M. Knox, Oxford, UK: Oxford University Press, 1952. Hopkins, K. D. (1982) „The Unit of Analysis: Group Means Versus Individual Observations‟, American Educational Research Journal, Vol. 19, No. 1 (March 1982): 5-18. John Steiner, V. (2000) Creative Collaboration, Oxford UK: Oxford University Press. Knapp, T. R. (1977) „The Unit-of-Analysis Problem in Applications of Simple Correlation Analysis to Educational Research‟, Journal of Educational Statistics, Vol. 2, No. 3 (Autumn, 1977): 171-186. Lave, J. and Wenger, E. (1991) Situated Learning: Legitimate Peripheral Participation Cambridge: Cambridge University Press. Leontyev, A. N. (1978) Activity, Consciousness, and Personality, New Jersey: Prentice-Hall. Lerman, S. (2000). The social turn in mathematics education research. In J. Boaler, Ed., Multiple perspectives on mathematics teaching and learning. Westport: Ablex Publishing, 2000: 19-44. Lerman, S., GuoRong, X. and Tsatsaroni, A. (2003) A Sociological Description of Changes in the Intellectual Field of Mathematics Education Research: Implications for the Identities of Academics, in Williams, J. (Ed.) Proceedings of the British Society for Research into Learning Mathematics, Vol. 23, No. 2 (June 2003): 43-48. Marx, K. (1867) Capital (Marx’s English Complete Works, Vol. 35), London, UK: Lawrence & Wishart, 1996. Mead, G. H. (1964) Selected Writings (Edited by A. J. Reck), Chicago: University of Chicago Press. 19 Minick, N. J. (1987) „The development of Vygotsky's thought: an introduction‟, in L. S. Vygotsky, Collected Works of L. S. Vygotsky. Vol. 1., New York: Plenum, 1987: 17-36. Núñez, I. (2009) „Activity Theory and the Utilisation of the Activity System according to the Mathematics Educational Community‟, Educate~ Special Issue, December 2009: 7-20, consulted 5 May 2011 via URL <http://www.educatejournal.org/index.php?journal=educate&page=article&op=viewPDFInterstitial &path%5B%5D=217&path%5B%5D=201> Quine, W. V. O. (1969) Ontological Relativity and Other Essays, New York: Columbia University Press. Radzikhovskii, L. A. (1991) „Dialogue as a Unit of Analysis of Consciousness‟, Journal of Russian and East European Psychology, Vol. 29, No. 3 (May-June 1991): 8 – 21. Rogers, J. (2007) „Identity as a Mediator of Student Praxis: Ethnographical Musings‟, consulted 5 May 2011 via URL <http://www.education.manchester.ac.uk/research/centres/lta/LTAResearch/SocioculturalTheoryIntere stGroupScTiG/SocioculturalTheoryinEducationConference2007/Conferencepapers/GroupThreePapers/ _Files/Fileuploadmax10Mb,135208,en.pdf> Rogoff, B. (1998) „Cognition as a collaborative process‟, in D. Kuhn and R. S. Siegler, Eds., Cognition, perception and language [Vol. 2, Handbook of Child Psychology (5th ed.), W. Damon, Ed.,] New York: Wiley, 679-744. Sfard, A. (1998) „On Two metaphors for learning and the dangers of choosing just one‟, Educational Researcher, Vol. 27, No. 2. (Mar., 1998): 4-13. Trochim, W, and Donnelly, J. P. (2007) The Research Methods Knowledge Base, 3rd edition, Cincinnati: Atomic Dog Publishing. Vygotsky, L. S. (1934) Thought and Language, Cambridge, Massachusetts: Massachusetts Institute of Technology Press, 1962. Vygotsky, L. S. (1987) Thinking and Speech (edited and translated by N. Minick), Collected Works of L. S. Vygotsky. Vol. 1. Problems of general psychology. New York: Plenum. Wenger, E. (1998) Communities of Practice: Learning, Meaning and Identity, Cambridge: Cambridge University Press. Wikipedia (2010) „The unit of analysis‟, consulted 24 April 2011 via URL <http://en.wikipedia.org/wiki/Unit_of_analysis>. Williams, J. (n. d.) „Learning and using signs at the boundary between activities: socio-cultural and activity perspectives‟, consulted 5 May 2011 via URL <http://orgs.man.ac.uk/projects/include/experiment/julian_williams.pdf> 20
© Copyright 2026 Paperzz