From “Try It and See” to strategic exploration: Characterizing young children's scientific reasoning

This article explores ways of characterizing different dimensions and levels of scientific reasoning in early elementary school children, in the context of open explorations. The article focuses on children's performance on three probes which involve using evidence to generate and evaluate knowledge claims. A number of dimensions have been used to characterize children's approaches to exploration and knowledge construction, which demonstrate the interrelationship between conceptual knowledge and scientific reasoning. Children differed markedly across these dimensions, yet individual children were relatively consistent in their approach to the tasks. The major differences in performance are linked to fundamental distinctions in the way ideas are viewed in relation to evidence. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 41: 94–118, 2004     

Promotion of Cultural Content Knowledge Through the Use of the History and Philosophy of Science

Historical excurse was suggested as a beneficial form of using the history and philosophy of science in the modules of learning materials developed within the History and Philosophy in Science Teaching project. The paper briefly describes the theoretical framework of the produced modules, addressing ontological and epistemological aspects of historical changes in physics knowledge with regard to several particular concepts relevant to school course of physics. It is argued that such excurses create Cultural Content Knowledge which improves the Pedagogical Content Knowledge in teachers and are appropriate to facilitate the meaningful learning by students. The modules illustrate the new aspect of the scientific knowledge not sufficiently addressed in the current science educational discourse??the constructive diachronic discourse that took place in the history. Historical excurse makes explicit the paradigmatic conceptual changes in physics knowledge and thus creates the space of learning in which the ??correct?? knowledge (type I) emerges in a discourse with the alternates (type II knowledge). Some of the previous conceptions show certain similarity to students?? misconceptions which further motivates essential use of both types of scientific knowledge to support the meaningful learning of physics curriculum. The epistemological aspects of the developed materials illuminate the nature of scientific knowledge and its major features: objectiveness and cumulative nature. Teachers found the developed modules interesting, important but challenging their background and requiring special preparation.     

Promoting elementary students’ epistemology of science through computer-supported knowledge-building discourse and epistemic reflection

This study examined the role of computer-supported knowledge-building discourse and epistemic reflection in promoting elementary-school students’ scientific epistemology and science learning. The participants were 39 Grade 5 students who were collectively pursuing ideas and inquiry for knowledge advance using Knowledge Forum (KF) while studying a unit on electricity; they also reflected on the epistemic nature of their discourse. A comparison class of 22 students, taught by the same teacher, studied the same unit using the school’s established scientific investigation method. We hypothesised that engaging students in idea-driven and theory-building discourse, as well as scaffolding them to reflect on the epistemic nature of their discourse, would help them understand their own scientific collaborative discourse as a theory-building process, and therefore understand scientific inquiry as an idea-driven and theory-building process. As hypothesised, we found that students engaged in knowledge-building discourse and reflection outperformed comparison students in scientific epistemology and science learning, and that students’ understanding of collaborative discourse predicted their post-test scientific epistemology and science learning. To further understand the epistemic change process among knowledge-building students, we analysed their KF discourse to understand whether and how their epistemic practice had changed after epistemic reflection. The implications on ways of promoting epistemic change are discussed.     

EDUCATION AND “THICK” EPISTEMOLOGY

In this essay Ben Kotzee addresses the implications of Bernard Williams's distinction between “thick” and “thin” concepts in ethics for epistemology and for education. Kotzee holds that, as in the case of ethics, one may distinguish between “thick” and “thin” concepts of epistemology and, further, that this distinction points to the importance of the study of the intellectual virtues in epistemology. Following Harvey Siegel, Kotzee contends that “educated” is a thick epistemic concept, and he explores the consequences of this for the subjects of epistemology and philosophy of education. Ultimately, Kotzee argues that its nature as a “thick” concept makes education suited to play an important role in explaining how the intellectual virtues can be acquired.     

The nature of scientific knowledge and student learning: Two longitudinal case studies

This study was designed to investigate the relationship between students' views of the nature of scientific knowledge and their own learning of physics, and the evolution of this relationship over time. Twenty-three students enrolled in a physics course that emphasised laboratory work and discussions about the nature of science. Over a 15-month period, an extensive data base was established including student essays and interviews regarding their views of the nature of science and teaching and learning of physics. As part of an extensive data generation, students read a book on the epistemology of physics, wrote reflective essays, and subsequently discussed the epistemology of physics in class. Two intensive case studies are used to illustrate our understanding of students' views over time. Changes in students' views concerning the nature of scientific knowledge and of the science teaching and learning process, which were not always complementary, are described with the aid of a model. The findings of this research have direct relevance to the planning and implementation of science courses in which the development of understandings of the nature of science is an objective.     

The sound of music: Constructing science as sociocultural practices through oral and written discourse

In this article, we examine the oral and written discourse processes in a high school physics class and how these discourse processes are related to sociocultural practices in scientific communities. Our theoretical framework is based on sociological and anthropological studies of scientific communities and ethnographies of classroom life. We review the use of discourse analysis as a methodological orientation in science education and provide a logic‐of‐inquiry framing how we used discourse analysis in our ethnographic research. Our ethnographic analysis showed that, through students' participation in creating scientific papers on the physics of sound, their appropriation of scientific discourse was related to the framing activities of the teachers and the social practices established over time in the classroom. Our textual analysis of the student papers focused on how they used evidence to make claims. We explore the lessons learned from participating in the classroom of these students. © 1999 John Wiley & Sons, Inc. J Res Sci Teach 36: 883–915, 1999     

CHILD REARING IN THE “RISK” SOCIETY: ON THE DISCOURSE OF RIGHTS AND THE “BEST INTERESTS OF A CHILD”

Due to a number of radical changes in society, the role of parents in the upbringing of their children has been redefined. In this essay, Paul Smeyers argues that “risk” thinking, and the technologization that goes with it in the context of child rearing, naturally leads to the rights discourse, but that thinking about the relation between parents and children in terms of rights confronts one with a number of insurmountable problems. The concept of the “best interests of a child” that is often invoked is, to say the least, not at all clear. Smeyers contends that while the discourse of rights is clearly important and relevant insofar as the relation between parents and the state are discussed, it impoverishes our understanding of relations of family members when used as an all‐inclusive framework in that context. Therefore, he concludes that we must surpass the totalizing tendency of the transformation of the social realm into a system, of defining the relation between parents and children in technical terms, and of holding parents liable for their children's upbringing.     

EPISTEMOLOGIES OF SITUATED KNOWLEDGES: “TROUBLING” KNOWLEDGE IN PHILOSOPHY OF EDUCATION

Epistemologies of situated knowledges, advanced by scholars such as Donna Haraway, Lorraine Code, and Maureen Ford, challenge mainstream epistemology's claim to be the gold standard in determining what counts as knowledge. In this essay, James Lang uses the work of these and other feminist theorists to explicate the notion of situated knowledges and then uses this notion to trouble the legitimacy of employing Kantian‐inspired propositional rationalism to justify all knowledge claims. Lang challenges the notions of the discrete, objective, impartial, interchangeable subject and the static passivity of objects of knowing. He demonstrates the inevitable involvement of the subjective in knowledge construction and justification; he claims that knowledge is necessarily embodied, partial, and situated and, further, that its construction, claiming, and enacting are activities with moral and political ramifications. Finally, Lang shows that re‐visioning contexts of education through lenses of epistemologies of situated knowledges reveals a vastly expanded moral landscape with significant implications for educators, students, and educational theorists.     

From Environmental Education to Ecopolitics. Affirming Changing Agendas for Teachers1

In this paper I examine Peirce's epistemological and ontological theories and indicate their relevance to educational practice. I argue that Peirces conception of Firsts, Seconds and Thirds entails a fundamental ontological realism. I further argue that Peirce does have a theory of truth, that it is a particular non‐traditional ‘correspondence’ theory, consistent with, and implicit in, an over‐arching position of pragmatic realism. Peirce's epistemological position is subject to misinterpretation when the ontological realism on which it rests is overlooked. Finally I suggest that such a re‐consideration of Peirce's pragmatic ontology and epistemology in an educational context is needed.     

Undergraduate science students' images of science

This article describes views about the nature of science held by a small sample of science students in their final year at the university. In a longitudinal interview study, 11 students were asked questions about the nature of science during the time they were involved in project work. Statements about the nature of science were characterized and coded using a framework drawing on aspects of the epistemology and sociology of science. The framework in this study has three distinct areas: the relationship between data and knowledge claims, the nature of lines of scientific enquiry, and science as a social activity. The students in our sample tended to see knowledge claims as resting solely on empirical grounds, although some students mentioned social factors as also being important. Many of the students showed significant development in their understanding of how lines of scientific enquiry are influenced by theoretical developments within a discipline, over the 5–8 month period of their project work. Issues relating to scientists working as a community were underrepresented in the students' discussions about science. Individual students drew upon a range of views about the nature of science, depending on the scientific context being discussed. © 1999 John Wiley & Sons, Inc. J Res Sci Teach 36: 201–219, 1999     

Changing personal epistemologies in early childhood pre-service teachers using an integrated teaching program

This study investigated changes in pre-service teachers' personal epistemologies as they engaged in an integrated teaching program. Personal epistemology refers to individual beliefs about the nature of knowing and knowledge and has been shown to influence teaching practice. An integrated approach to teaching, based on both an implicit and explicit focus on personal epistemology, was developed by an academic team within a Bachelor of Education (Early Childhood). The teaching program integrated content across four units of study, modelling personal epistemologies implicitly through collaborative reflexive practice. The students were also required to engage in explicit reflections on their personal epistemologies. Quantitative measures of personal epistemology were collected at the beginning and end of the semester using the Epistemological Beliefs Survey (EBS) to assess changes across the teaching period. Results indicated that pre-service teachers' epistemological beliefs about the integration of knowledge became more sophisticated over the course of the teaching period. Qualitative data included pre-service teachers' responses to open ended questions and field experience journal reflections about their perceptions of the teaching program and were collected at the end of the semester. These data showed that pre-service teachers held different conceptions about learning as integration, which provided a more nuanced understanding of the EBS data. Understanding pre-service teachers' epistemological beliefs provides promising directions for teacher preparation and professional enrichment.     

Bridging the “Bayley-Binet GAP”

This study demonstrated that encountering children ages 18-23 months whose performance is not scorable by standard methods for either the Stanford Binet Intelligence Test or the Bayley Scales of Infant Development mental scale is a relatively frequent occurrence. However, the results of this study bring into question Sternlicht's (1965) suggestion that an 18-month basal level on the Stanford-Binet may be assumed, given success by a child on only one item at the two-year level. The study indicates that a child must succeed on at least two, or more conservatively, four items at the two-year level on the Stanford-Binet in order to assume an 18-month basal level.     

“The very ugly duckling” meets Minecraft: identity work and interpretive competence

Picturebook discussions are commonplace literacy events in contemporary classrooms. The different experiences, backgrounds and ways of being that individual students draw upon during talk around texts prompt a broad range of ways to make, negotiate and share meanings. In addition to developing students' literacy skills such as oral language, vocabulary and comprehension, these discussions have been shown to be instrumental in developing students' interpretive competence which is important for achieving learning outcomes. In this article, we report a study that investigated how four diverse groups of 10‐ and 11‐year‐old students and teachers from two schools experienced such reading events. The study found that making sense of these books was more productive when students were given permission to switch identities and make connections to their out‐of‐school cyber and popular culture worlds. Using discourse analytic techniques, we uncover the identity work during a number of discussions around two different picturebooks and show how this enabled these learners to enter the academic space and demonstrate interpretive competence.     

Student views concerning evidence and the expert in reasoning a socio‐scientific issue and personal epistemology

This study investigated their views concerning evidence and expert opinion of 10th‐grade students, accessed by an open‐ended questionnaire in the context of a socio‐scientific issue: the cause of flood disasters, and personal epistemology identified by the Learning Environment Preference Questionnaire (LEP). Students' responses to the open‐ended questions showed that when thinking about the flood issue, most students rely heavily on direct and numerical data to draw their conclusions, while experts represented a source of conclusive information. The LEP scores indicated that, in terms of epistemological development, students were mostly at the stage of the ‘multiplicists’ in Perry's model. The statistical analysis suggested that view towards evidence and expert were associated with personal epistemology.     

Identifying potential “dropouts” from college physics classes

Hudson and Rottman (1981) established that mathematics ability is probably a secondary factor influencing dropout from college physics courses. Other factors remain to be found for predicting who will drop out or at least have difficulty with the course. When mathematics ability is coupled with general indicators of performance (total GPA and ACT natural science), prediction of performance for those who complete the course is substantially improved. Moreover, discriminant analyses reveal who will have at least some difficulty, but not who will drop out. The problem of isolating specific weaknesses of students who have difficulty persists. Physics achievement appears to depend on mathematics ability only to the extent that students possess the ability to utilize mathematics knowledge for solving physics problems. Identification of the specific aspects of this ability as well as the specific deficiencies leading to dropout should be the object of future research. For the present, interviews might be more revealing than group testing methods.     

Physics students' epistemologies and views about knowing and learning

Classrooms are complex environments in which curriculum, students, and teachers interact. In recent years a number of studies have investigated the effect of teachers' epistemologies on the classroom environment, yet little is known about students' epistemologies and how these interact with those of teachers. The purpose of this study was to document students' epistemologies and their concurrent views about knowing and learning. Using a written essay, short-answer responses to statements, a preferred classroom environment inventory, and interviews, students' views on scientific knowledge and their own knowing and learning were collected from 42 students in three sections of an introductory physics course. Our rather broad, qualitative inquiry provides a dynamic view of students' understanding of knowing and learning in high school physics. Our analyses reveal a spectrum of epistemological commitments commensurable with positions from objectivism to relativism, most of them with experientialist coloring. Even within individuals, these commitments could be at once commensurable and incommensurable with the same epistemological position. We also find rather significant inter- and intra-individual differences with respect to the consequences of a specific epistemological stance to learning, the learning strategies employed, and the learning environment preferred. Students' views on knowing and learning in physics are presented in the form of an emergent theory. The findings are discussed in terms of their application to classroom environments.     

Teaching science as a language: A “content‐first” approach to science teaching

Our research project was guided by the assumption that students who learn to understand phenomena in everyday terms prior to being taught scientific language will develop improved understanding of new concepts. We used web‐based software to teach students using a “content‐first” approach that allowed students to transition from everyday understanding of phenomena to the use of scientific language. This study involved 49 minority students who were randomly assigned into two groups for analysis: a treatment group (taught with everyday language prior to using scientific language) and a control group (taught with scientific language). Using a pre–post‐test control group design, we assessed students' conceptual and linguistic understanding of photosynthesis. The results of this study indicated that students taught with the “content‐first” approach developed significantly improved understanding when compared to students taught in traditional ways. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 45: 529–553, 2008     

“You're going to want to find out which and prove it”: collective argumentation in a mathematics classroom

One of the proposals of the North American educational reform movement is that teachers should stress scientific argumentation more than the manipulation of symbols and algorithms in their mathematics instruction. The aim of this article is to apply some theoretical concepts, drawn from the fields of sociolinguistics and rhetoric, to the analysis of argumentation in a lesson conducted in an urban middle school classroom. Our analysis focuses on the implementation of the classroom teacher's instructional goals during a lesson on area measurement. As a result of our analyses, we found that she achieved her instructional goals of being nondirective in her teaching and getting students actively involved in arguing about mathematical concepts. The teacher was able to orchestrate discussion by recruiting attention and participation from her class, aligning students with argumentative positions through reported speech, highlighting positions through repetition, and pointing out important aspects of their arguments through expansion. In addition, we also found that her students differed in the way they framed the mathematical content of the lesson in terms of the facts or grounds, algorithms or warrants, premises or backings, as well as solutions or claims. Their arguments also varied in terms of explicitness and ability to integrate their classmates' arguments. In conclusion, we feel that discourse analysis, based on sociolinguistic and rhetorical theoretical frameworks, can be a valuable tool for the evaluation of educational reform in mathematics.