Science education researchers have long advocated the central role of the nature of science for our understanding of scientific literacy. NOS is often interpreted narrowly to refer to a host of epistemological issues associated with the process of science and the limitations of scientific knowledge. Despite its importance, practitioners and researchers alike acknowledge that students have difficulty learning NOS and that this in part reflects how difficult it is to teach. One particularly promising method for teaching NOS involves an explicit (...) and reflective approach using the history of science. The purpose of this study was to determine the influence of a historically based genetics unit on undergraduates’ understanding of NOS. The three-class unit developed for this study introduces students to Mendelian genetics using the story of Gregor Mendel’s work. NOS learning objectives were emphasized through discussion questions and investigations. The unit was administered to undergraduates in an introductory biology course for pre-service elementary teachers. The influence of the unit was determined by students’ responses to the SUSSI instrument, which was administered pre- and post-intervention. In addition, semi-structured interviews were conducted that focused on changes in students’ responses from pre- to post-test. Data collected indicated that students showed improved NOS understanding related to observations, inferences, and the influence of culture on science. (shrink)

Concepts related to the nature of science have been considered an important part of scientific literacy as reflected in its inclusion in curriculum documents. A significant amount of science education research has focused on improving learners’ understanding of NOS. One approach that has often been advocated is an explicit and reflective approach. Some researchers have used the history of science to provide learners with explicit and reflective experiences with NOS concepts. Previous research on using the history of science in science (...) instruction has approached HOS in many different ways and consequently has led to inconsistent findings regarding its utility for improving learning. One promising method for overcoming this inconsistency and teaching NOS with more traditional science content is using stories based in the history of science. A mixed method approach was used to determine whether and how the use of science stories influences undergraduates’ understanding of NOS. Particular attention was paid to the explanations that students used for their understandings. Intervention and control groups completed the Student Understanding of Science and Scientific Inquiry instrument. The intervention group was taught using two historical narratives while the control group was taught using minimal history. A subset of both groups was also interviewed regarding their SUSSI responses and their experiences in the course. Results indicated that the introduction of science stories helped participants gain a better understanding of the role of imagination and creativity in science. Participants mentioned science stories in their explanations for why they changed towards more informed views on SUSSI items related to imagination and creativity. The current study adds to a growing body of literature regarding the use of stories in the science classroom. (shrink)

These reflections range over some distinctive features of the journal Science & Education, they acknowledge in a limited way the many individuals who over the past 25 years have contributed to the success and reputation of the journal, they chart the beginnings of the journal, and they dwell on a few central concerns—clear writing and the contribution of HPS to teacher education. The reflections also revisit the much-debated and written-upon philosophical and pedagogical arguments occasioned by the rise and possible demise (...) of constructivism in science education. (shrink)

This article presents a qualitative study, descriptive-interpretive in profile, of the effectiveness in learning about the nature of science of an activity relating to the historical controversy between Pasteur and Liebig on fermentation. The activity was implemented during a course for pre-service secondary science teachers specializing in physics and chemistry. The approach was explicit and reflective. Three research questions were posed: What conceptions of NOS do the PSSTs show after a first reflective reading of the historical controversy?, What role is (...) played by the PSSTs’ whole class critical discussion of their first reflections on the aspects of NOS dealt with in the controversy?, and What changes are there in the PSSTs’ conceptions of NOS after concluding the activity? The data for analysis was extracted from the PSSTs’ group reports submitted at the end of the activity and the audio-recorded information from the whole class discussion. A rubric was prepared to assess this data by a process of inter-rater analysis. The results showed overall improvement in understanding the aspects of NOS involved, with there being a significant evolution in some cases and moderate in others. This reveals that the activity has an educational utility for the education of PSSTs in NOS issues. The article concludes with an indication of some educational implications of the experience. (shrink)

This study considers the short list of Nature of Science features frequently published and widely known in the science education discourse. It is argued that these features were oversimplified and a refinement of the claims may enrich or sometimes reverse them. The analysis shows the need to address the range of variation in each particular aspect of NOS and to illustrate these variations with actual events from the history of science in order to adequately present the subject. Another implication of (...) the proposal is the highlighting of the central role of science educators who, facing various strong claims of researchers in education and philosophy of science, often have difficulty in making a choice of what to teach about NOS. It is suggested that a representative variation with regard to the traditional NOS claims may be appropriate for a genuine understanding of the subject. In that, using the discipline-culture structure of the fundamental theories of physics and addressing the plurality of scientific methods may be helpful in the actual teaching and learning of NOS. (shrink)