Journal of Research in Science Teaching最新文献

This study examines the often-heard assumption in science teaching that some pedagogies in science classrooms can serve a dual function—improve the student-perceived teacher quality and improve students' affinity to STEM professions. We asked 7507 freshmen from 40 colleges in the United States, selected in a stratified random procedure, to retrospectively report their experiences of a list of 32 pedagogies during high school biology, chemistry, and physics classes. Our survey also asked students to rate each teachers' quality and to report their Science, Technology, Engineering, or Mathematics career interests at the beginning and end of high school. We found that teachers' chosen pedagogies, on the whole, had a stronger impact on how students rated them than on students' career interests. Interestingly, we also found considerable differences between the disciplines.

In teacher professional development (PD), grouping teachers with varying levels of experience can be a productive and empowering way to stimulate the exchange and co-generation of content and pedagogical knowledge. However, less experienced teachers can face socio-emotional risks when engaging in collaborative science content reasoning tasks with more experienced colleagues, and these risks may impact the collaborative experience of both parties and the learning environment in teacher PD. This exploratory case study examines the process of productively navigating socio-emotional risks and interpersonal tensions encountered by a veteran and pre-service physics teacher during one episode of discussing physics content. We use a single term, comfort-building, to encapsulate discursive moves that result in increased feelings of comfort and safety by the participants. Comfort-building includes moves that serve to mitigate social risk, ease tension, and avoid discomfort, as well as those geared toward finding common ground and co-navigating challenges. These moves can carve out conversational space for teachers to more confidently face risks associated with being accountable to the physics content knowledge and engage in discipline-based conversations more deeply. The presented case was followed by video-stimulated individual interviews to determine how consciously the teachers connected their participation to explicit risk and comfort. This case study highlights an affective dimension for consideration in the continued study and facilitation of science teacher PD, especially programs that bring together teachers with a variety of backgrounds and skill sets.

Multiple external representations (MERs) are useful for teaching complex content in science education. An open question is whether there is an especially effective way to sequence MERs. On the one hand, the so-called concreteness fading approach suggests starting instruction with more concrete representations and proceeding stepwise to more idealized representations. The effectiveness of this fading approach is, however, supported mainly by studies in mathematics education, while the results in physics are equivocal. On the other hand, presenting different representations simultaneously may support linking, that is, the comparison and contrast of representations, which may benefit learning. In an experimental classroom study (N = 187), we compared concreteness fading and simultaneous presentation of MERs for learning a challenging physics content in high school, namely, Faraday's law. We found no significant differences between conditions in posttest performance, and an equivalence test with bounds d = −0.5 to 0.5 showed that both approaches performed equally. The results align with previous findings questioning the superiority of concreteness fading over other ways of sequencing MERs. Therefore, facilitating students' understanding of a complex physics content may involve more than determining the optimal order of presenting MERs. We discuss limitations of the present study and implications for future research and practice.

The Framework for K-12 Science Education set an ambitious goal of broadening participation in science learning for all students. Meeting this vision will involve supporting teachers in making meaningful connections with the cultural and linguistic resources their students bring to school; in essence, developing pedagogies that frame these resources as assets important to learning. In this manuscript, we present a qualitative case study of one community of high school science teachers who participated in a year-long professional learning focused on formative assessment co-design related to natural selection. Findings show that the process of formative assessment co-design surfaced both deficit- and asset-based statements about students' contributions. Teachers were more likely to share deficit-based statements as compared to facilitators, whose statements were more asset-based. This was particularly true with reference to students' prior knowledge and linguistic resources. At the same time, our analysis suggests that teachers were more likely to share more asset-based framings of learners when practicing for and reflecting on enactment of formative assessment tasks. These findings suggest that supportive co-design environments can encourage teachers to take more asset-oriented views of learners. We discuss the implications of these findings for professional learning and science classroom practice.

This is a study intended to address white supremacy in science education. To accomplish this, we describe how one White intern, Boaz, learned to teach science in anti-racist ways. By detailing how whiteness mattered in his learning to teach, we demonstrate that whiteness is potentially constant in White peoples' learning to teach science in anti-racist ways. However, we conclude by suggesting that critical whiteness ambitious science teacher education, a merging of critical whiteness pedagogy with practice-based science teacher education provides a potential way to address the presence of whiteness in science teacher education.

This article examines two teachers' efforts to re-organize their science teaching around issues of environmental and food justice in the urban community where they teach through the pedagogical approach of community-oriented framing. We introduce this approach to teachers' framing of phenomena in community as supporting students' framing of phenomena as personally and locally relevant. Drawing on classroom observations of remote learning during the COVID-19 pandemic, we took an analytic approach that characterized features of classroom discourse to rate community-oriented framing at the lesson level. Results show that teachers framed phenomena as both social and scientific, and as rooted in students' lived experiences, with classroom activities designed to gather localized and personalized evidence needed to explain or model phenomena. We also share examples of how Black and Latinx students took up this framing of phenomena in their classroom work. By providing a detailed description of the launch and implementation of activities, findings illustrate how community-oriented framing supported teachers in posing local questions of equity and justice as simultaneously social and scientific, and helping students perceive science learning as meaningful to their everyday lives. Community-oriented framing offers a practical means of designing locally and socially relevant instruction. We contribute to justice-centered science pedagogies by conceptualizing transformative science learning environments as those in which students understand their goal in science class as understanding, and later addressing, inequities in how socioscientific issues manifest in their community.

Exploring how science teacher education programs can prepare science teachers to support gender and sexually diverse students remains an important area for research. A 5-week intervention was designed for pre-service science teachers' (PSSTs), addressing gender and sexual diversity (GSD). The effects of the intervention on PSSTs' attitudes and beliefs about GSD-inclusive science teaching (GSDST) were explored using a multiple case study research design. In addition, the design elements of the intervention that were perceived as most significant were identified. Our results showed that the PSSTs were mostly supportive of measures indicative of GSDST prior to the intervention, and there was an overall trend in favor of GSDST with small effect sizes after the intervention, which did not reach statistical significance. Using thematic analysis, three themes were identified to characterize how their attitudes and beliefs changed throughout the intervention: GSDST is perceived as important for student safety; an “add LGBT and stir” approach to GSDST; and uncertainty of GSD language. Five design features of the intervention that were perceived as most impactful were group dialog; coherence to Ambitious Science Teaching; GSD terminology; knowledge of intersex, hormones, and lesbian, gay, bisexual, transgender, and queer scientists; and relevant case studies. The findings contribute to understanding how science teacher education programs can impact PSSTs' attitudes, beliefs, and intended enactment of GSDST consistent, with recent calls for GSD equity in science education.

Inquiry-Based Teaching Practice (IBTP) is an essential component of science education, and promoting its implementation is at the heart of various reform efforts. Even though science teachers regard IBTP as an essential pedagogical method, they rarely use it for various reasons. This study utilizes Bronfenbrenner's ecological framework to examine potential factors at various levels of the educational ecosystem that predict the implementation of inquiry-based teaching practices among Grade 9 science teachers in South Africa. To this end, quantitative data from 537 educators who participated in the Trends in International Mathematics and Science Study (TIMSS) 2019 national assessment were utilized. Data were analyzed using descriptive statistics, Pearson correlation, and hierarchical multiple regression analysis. Results revealed that four variables at different socioeconomic levels were perceived to strongly predict teachers' implementation of inquiry teaching practices. These factors include teachers' job satisfaction, instructional resource shortage, and teachers' perception of the significance of various assessment strategies at the mesosystem level as well as teachers' participation in professional development at the exosystem level. Significant correlations exist between some of the predictive variables. Implications for policy are discussed.

This theoretical paper focuses on the social processes of public engagement with science and their implications for science education. The core of our argument is that science education should help people become better at evaluating, using, and curating their epistemic networks to make personal and civic decisions and to understand the natural world. In this context, an epistemic network is a set of people who support sensemaking by providing new information and aiding in the interpretation and reconstruction of scientific knowledge in context. We believe epistemic networks are an important consideration for science education, particularly when misinformation plays an outsized role in the cultural landscape. Understanding when epistemic networks are useful and how science education should incorporate them requires a clear sense of how they work in different contexts. We start by contrasting the inevitably social nature of all public engagement with science with the particularly social or interpersonal nature of some public engagement with science. We draw on research from education, communication, and science and technology studies to develop the idea of an epistemic network and to describe two basic types: the individual resource network and the collective action network. We illustrate each type with an extended example that is hypothetical but informed by both research and experience. Finally, we discuss how science education can incorporate epistemic networks, as well as the challenges inherent in that educational strategy.

Science educators now broadly recognize the multimodal nature of learning in science, where learners make meanings within modes (linguistic, mathematical, visual, and actional) by using the conventions of different sign systems or grammars in these modes. However, how teachers guide students to link and infer new meanings across modes, called “transduction” (Kress & Van Leeuwen, 2006. Reading images: The grammar of visual design. Routledge, p. 39), is less clear. This mapping of meanings across modes through realizing, generating, aligning, and coordinating meanings in representations is crucial to learning and communicating scientific concepts, inquiry processes, and reasoning. In this paper we propose a pragmatist account of how young students can be guided to achieve cohesion in this process. Drawing mainly on Peirce's (1998, The essential Peirce: Selected philosophical writings. Indiana University Press) theory of sign functions and affordances, we describe how, in practice, transduction entails a sequence of meaning-making steps across and within sign systems. For Peirce, sign systems in science enable inferential meaning-making within modes, but signs within these grammars can also prompt, support, and confirm meanings across modes. We analyze student learning in an elementary school astronomy class to identify how transduction is enacted and supported. We draw on micro-ethnographic analysis of the teacher's interactions with students and their artifacts to identify key transduction enablers. We found that young students can engage successfully in trans-modal reasoning if multiple conditions are met, with implications for science inquiry design in general and the teacher's key role in transduction guidance.