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Nature of science (NOS) has increasingly been emphasized as an important element in science education. This paper engages in the question of how teachers negotiate different approaches to and contexts for NOS teaching. This exploratory study is part of a three-year longitudinal project where six in-service teachers developed and negotiated their NOS-teaching practices. Pickering's (1995) theory of the mangle of practice is used for the analysis of teachers' focus-group discussions. In a mangled practice, school science traditions, policy documents, and students' and teachers' expectations and identities are rubbed against each other. As part of the project teachers planned, implemented, and reflected on two NOS activities at different levels of contextualization. The concepts alignment, resistance, and accommodation are used as an analytical tool to understand the processes of the mangle in relation to teachers' negotiations concerning the two activities during the focus groups. The results of the mangle are presented in relation to a backdrop of three teaching traditions (facts, lab-work, and discussions) that the teachers' claim to depart from. The results show how the alignment and resistance of different components of the mangle lead to various accommodations as regards both the activities and the three traditions. The article concludes by discussing how the teachers' negotiations highlight what becomes possible and what becomes challenging when NOS meets existing traditions, and what this means in respect of possibilities for NOS learning. K E Y W O R D S in-service teachers, levels of contextualization, nature of science, science teaching traditions, the mangle of practice learning of science concepts (

This article focuses on the need for increased attention to content issues and working methods for science teaching in Early Childhood Education (ECE). Science education research emphasises the importance of not only focusing on specific phenomena, but also on the Nature of Science (NOS). NOS teaching deals with questions about what science is, how scientific knowledge is developed and in what ways humans are involved in these processes. An inclusion of such issues is important if common stereotypical images of science and scientists are to be challenged. Previous research has suggested that NOS can be taught through book talks connected to trade books. However, there is a lack of empirical studies at the ECE level supporting this suggestion. Thus, this article reports from the first part of a project in which researchers and teachers explored book talks as a possibility to introduce NOS in early years science (children between 1 and 5 years old). Data consists of book talks (N=48) around two picture trade books led by five preschool teachers preceded by a teacherresearcher workshop on NOS and NOS teaching. The results show that discussions on a variety of NOS issues is possible in an ECE context. These results are discussed in relation to previous literature on both NOS teaching and science in the early years.

The research field of science education has gathered questions about what science is, how scientific knowledge is developed and in what ways humans are involved in these processes under the umbrella concept 'nature of science' (NOS). Previous research has suggested that teaching ought to focus much more on these issues, but so far the focus has been on older children and students, while there is a lack of research on NOS teaching for the youngest children (up to six years). In this conceptual article, we suggest that NOS should be taught from the outset, and thus be part of science teaching in the early years. We put forward arguments as to why this early introduction coupled to the overall values and aims of democracy and social justice is important, and elaborate on the kind of NOS issues that could be included in science teaching aimed at the youngest children.

In the science education research field there is a large body of literature on the ‘nature of science’ (NOS). NOS captures issues about what characterizes the research process as well as the scientific knowledge. Here we, in line with a broad body of literature, use a wide definition of NOS including also e.g. socio-cultural aspects. It is argued that NOS issues, for a number of reasons, should be included in the teaching of science/physics. Research shows that NOS should be taught explicitly. There are plenty of suggestions on specific and separate NOS activities, but the necessity of discussing NOS issues in connection to specific science/physics content and to laboratory work, is also highlighted. In this article we draw on this body of literature on NOS and science teaching, and discuss how classroom situations in secondary physics classes could be turned into NOS-learning situations. The discussed situations have been suggested by secondary teachers, during in-service teacher training, as situations from every-day physics teaching, from which NOS could be highlighted.

The inclusion of nature of science (NOS) in science education has for a long time been regarded as crucial. There is, however, a lack of research on appropriate NOS aspects for different educational levels. An even more neglected area of research is that focusing on teachers' perspectives on NOS teaching at different levels. The aim of this article is to examine NOS progression in the light of teachers' suggestions and rationales. In order to obtain teachers' informed perspectives, we chose to involve six teachers (teaching grades 1-9) in a 3-year research project. They took part in focus group discussions about NOS and NOS teaching as well as implemented jointly planned NOS teaching sessions. Data that this article builds on was collected at the end of the project. The teachers' suggestions for NOS progression often relied on adding more NOS issues at every stage, thereby creating the foundations of a broader but not necessarily deeper understanding of NOS. Five rationales, for if/when specific NOS issues are appropriate to introduce, emerged from the analysis of the teacher discussions. Some of these rationales, including practice makes perfect and increasing levels of depth can potentially accommodate room for many NOS issues in the science classroom, while maturity and experience instead has a restricting effect on NOS teaching. Also, choice of context and teaching approaches play an important role in teachers' rationales for whether specific NOS issues should be included or not at different stages. The article discusses the implications for teacher education and professional development.

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Most of the physics (as well as the other sciences) taught in school can be described as well-established or consensus science. This is the kind of science knowledge that was mostly developed over a century ago. The inclusion of contemporary science research in compulsory school science teaching could be justified from a variety of reasons: increasing students’ interest and motivation; providing insights into modern research practice; and as a frame for teaching nature of science (NOS) perspectives. The present article focuses on the latter—contemporary science as a means to teach NOS. The article builds on data from an in-service teacher training course that focused on ways to include contemporary science in lower secondary physics education. Each course participant chose a research area, interviewed a scientist, and wrote a popular science article based on the interview. The article was written with secondary students (13–15 years old) as a target audience. By the end of the course the participants designed, implemented and evaluated a teaching unit which was based on the popular science article. The present article analyses what NOS perspectives that have been included in the popular science articles. The results show a high diversity of NOS aspects, which indicate a great potential for taking contemporary science research as a starting point for NOS teaching.