Researchers have raised concerns about teachers’ ability to embed nature of science in their science instruction, a complicated situation that is certainly impacted by the availability of adequate resources to assist K-12 science teachers. In light of the implementation of the ideas from the Framework for K-12 Science Education and the Next Generation Science Standards in the USA, this study sought to identify and evaluate resources aimed at guiding NOS instruction. A search of the National Science Teachers Association database for (...) Next Generation Science Standards -aligned instructional resources resulted in an analytical sample of eight lessons. All materials accompanying these lessons were analyzed for their representations of 10 NOS aspects. The evaluation of these materials revealed a prevalence of implicit, naïve representations in the sample lessons. Examination of the connections to NOS in these lessons leads to a set of recommendations to improve the quantity and quality of NOS representations in future NGSS-aligned instructional resources. The analytical approach used and the issues raised about the presentation and treatment of NOS in precollege lessons are of interest to the broader science education community. (shrink)

The work of science is a linguistic act. However, like history and philosophy of science, language has frequently been isolated from science content due to factors such as school departmentalization and narrow definitions of what it means to teach, know, and do science. This conceptual article seeks to recognize and recognize—to understand and yet rethink—science content in light of the vision of science expected by academic standards. Achieving that vision requires new perspectives in science teaching and teacher education that look (...) into the role that science language expectations play in science content. These perspectives reposition attention to language from a hidden, overlooked, or outsourced aspect of science teaching, to one at its core. To help bring teachers and teacher educators into this integrative view of science content, this article offers a mirror, a prism, and a lens as three metaphorical tools to explore the essential roles that language plays for, in, and as science content. The reflection, refraction, and refocusing of science content reveal complex science language expectations that function alongside facts, figures, and formulas of science as gatekeeping mechanisms that, once noticed, cannot be ignored or marginalized in science teaching and science teacher education. (shrink)

Besides viewing knowledge about the nature of science as important for its own value with respect to scientific literacy, an adequate understanding of NOS is expected to improve science content learning by fostering the ability to interrelate scientific concepts and, thus, coherently acquire scientific content knowledge. However, there is a lack of systematic investigations, which clarify the relations between NOS and science content learning. In this paper, we present the results of a study, conducted to investigate how NOS understanding relates (...) to students’ acquisition of a proper understanding of the concept of energy. A total of 82 sixth and seventh grade students received an instructional unit on energy, with 41 of them receiving generic NOS instruction beforehand. This NOS instruction, however, did not result in students having higher scores on the NOS instrument. Thus, correlational analyses were performed to investigate how students’ NOS understanding prior to the energy unit related to their learning about science content. Results show that a more adequate understanding of NOS might relate to students’ perspective on the concept of energy and might support them in understanding the nature of energy as a theoretical concept. Students with higher NOS understanding, for example, seemed to be more capable of learning how to relate the different energy forms to each other and to justify why they can be subsumed under the term of energy. Further, we found that NOS understanding may also be related to students’ approach toward energy degradation—a concept that can be difficult for students to master—while it does not seem to have a substantive impact on students’ learning gain regarding energy forms, transformation, or conservation. (shrink)