Science & Education最新文献

This paper presents a literature review of science teaching approaches that seek to support equity in science classrooms, focusing on marginalization based on (i) race/ethnicity, (ii) social class/socioeconomic background, and (iii) religion. Considered were approaches that science teachers can use in science classes in secondary schools. They were analyzed and discussed against the backdrop of critical pedagogy by Paulo Freire and the educational theory by Hannah Arendt, which constitutes a novelty in science education research. The review used meta interpretation combined with systematic searches in the ERIC database. It is, thus, limited to works published in English. A total of 930 articles (2013–2021) were identified out of which 64 were fully analyzed. The analysis shows that most approaches strive to provide more equal access to the existing science knowledge and structures of the community. This corresponds to the introduction to the “old world” in a conservative interpretation of Arendt's term. I argue that in addition, it is necessary to employ a more radical interpretation of the “old world” as fundamentally plural which is done in translanguaging and grappling with racism. Further, the transformative nature of science education needs to be strengthened in terms of Freire's critical pedagogy and Arendt's concept of natality. This means allowing students to become aware of oppressive structures to induce change. Only youth participatory science, youth participatory action research, and grappling with racism explicitly aim for this. This shows that nuanced perspectives on equity in science education are needed.

This study aimed to investigate whether the presence (when using physical manipulatives [PMs]) or absence (when using virtual manipulatives [VMs]) of haptic sensory feedback (i.e., open-ended haptic manipulation of physical materials with the use of the hands) during experimentation can impact preschoolers’ conceptual understanding of concepts concerning three different subject domains (i.e., balance beam, sinking/floating, and springs). The participants were 132 preschoolers (5–6 years old), 44 per subject domain, who were equally divided into two conditions differing in the means of experimentation (PM or VM) they used. The data of this exploratory study were collected through clinical interviews and analyzed both qualitatively and quantitatively. The findings indicated that preschoolers’ mean score improved in both conditions for each subject domain, (probably) as a result of their participation in the experimentation phase of the interviews, across all domains and conditions. No statistically significant difference in preschoolers’ learning between the two conditions was found in the balance beam domain. In the sinking/floating domain, VM were found to be more conducive to preschoolers’ learning than PM, whereas in the springs domain PM were found to have enhanced preschoolers’ learning more than VM did. These findings have important implications for science teaching and learning in the early childhood years. First, we provide information on when PM or VM is conducive to kindergarteners’ science learning. Second, we report on how prior embodied knowledge, established through haptic sensory input and related to the task at hand, affects learning through PM or VM experimentation.

Lack of access to STEMM mentors has been identified as a critical barrier to biomedical research careers, leading to a lack of diversity in this field. To address such a barrier, the National Institutes of Health invested funds to support institutions in developing research immersion programs to provide “underrepresented” students with mentored research experiences. While providing access and opportunity for research experiences is an important equity endeavor, a focus solely on broadening participation neglects the role of institutions in perpetuating hegemonic views of science. Institutions often fail to recognize how entanglements of affect and emotion shape youth experiences in these programs and work to (de)legitimize their sense of belonging in science and perpetuate the notion of science as for an exclusive few. In this paper, we describe findings from a project aimed at understanding the entanglement of emotion and affect in a research immersion program and how these entanglements shaped participants' sense of belongingness in the program and research more broadly. Drawing on a poststructural feminist framework, we come to understand how individual histories and emotional experiences with racial and gender stereotypes work at the meta-affective level to contract feelings of belongingness in science for students.

Although research has highlighted the challenges of teaching in urban settings, particularly for science teachers, it has paid less attention to the development of science teaching identities in urban settings. This paper situates science teaching identity within societal discourses of science, education, and teaching to explore the ways in which macro-level discourses influence the positions available to science teachers in urban schools. Using questionnaire data from 64 teachers, discourse analysis is used to demonstrate how participants reinscribe or disrupt prominent macro-level discourses, including the elitism of science, accountability, and deficit views of urban areas, and the resulting positions that are created by this negotiation process. The findings include possible positions relative to science, education, and teaching as well as a consideration of differences between elementary and secondary teachers and between beginning and experienced teachers. Although many participants successfully disrupted damaging discourses of science as elite and disconnected, as well as discourses of accountability and the role of standardized testing, they were not able to disrupt deficit discourses that resulted in positioning themselves as outside of their students' worlds, often as saviors. The findings demonstrated the strong influence of deficit discourses on teachers' descriptions of their experiences as science teachers and the need to support teachers in understanding the historical and cultural contexts of urban education to identify and disrupt deficit discourses and create teacher positions based on asset and justice-based views of students, schools, and communities.

An essential aspect of scientific practice involves grappling with the generation of predictions, representations, interpretations, investigations, and communications related to scientific phenomena, all of which are inherently permeated with uncertainty. Transferring this practice from expert settings to the classroom is invaluable yet challenging. Teachers often perceive struggles as incidental, negative, and uncomfortable, assuming they stem from students' deficiencies in knowledge or understanding, which they feel compelled to promptly address to progress. While some empirical research has explored the role of scientific uncertainties in driving productive student struggle, few studies have explicitly examined or provided a framework to unpack scientific uncertainty as it manifests in the classroom, including the sources that lead to student struggle and how teachers can manage it effectively. In this position paper, we elucidate the importance of incorporating scientific uncertainties as pedagogical resources to foster student struggles through uncertainty from three perspectives: scientific literacy, student agency, and coherent trajectories of sensemaking. To develop a theoretical framework, we consider scientific uncertainty as a resource for productive struggle in the sensemaking process. We delve into two types (e.g., conceptual, epistemic), four sources (e.g., insufficiency, ambiguity, incoherence, conflict), and three desirability considerations (e.g., relevance, timing, complexity) of scientific uncertainties in student struggles to provide a theoretical foundation for understanding what students struggle with, why they struggle, and how scientific uncertainties can be effectively managed by teachers. With this framework, researchers and teachers can examine the (mis)alignments between uncertainty-in-design, uncertainty-in-practice, and uncertainty-in-reflection.

The greenhouse effect is a complex scientific phenomenon that plays a crucial role in understanding climate change. Grasping students' understanding of this phenomenon on the content-specific level but also how students' conceptions are organized is vital for effective climate change education. This study addresses both levels and delves into the relationship between students' frameworks and knowledge pieces of the greenhouse effect through the analysis of multiple-choice questions, employing Bayesian correlations and multiple logistic regression. We thereby focus on specific types of conceptualizations of the greenhouse effect that have been identified in previous research and furthermore investigate the coherency of them. To do so, we analyzed answers of N = 604 grade 11 students in Austria and Germany and interpreted them from different theoretical perspectives. The findings showed that students hold various ideas about the greenhouse effect that are only seldom coherent, in particular when it comes to adequate ideas about the greenhouse effect. However, especially for a reflection-based framework of the greenhouse effect, our results demonstrate that students' conceptions show some form of coherency. We argue that our results can inform the development of effective teaching strategies that address students' existing knowledge and alternative conceptions. In terms of practical implications, the findings suggest that teaching strategies should provide opportunities for students to integrate their knowledge pieces into a more coherent understanding of the greenhouse effect. The study highlights the need for further investigation into the relationship between knowledge pieces and frameworks not only for the greenhouse effect, but for science education in general.

The predominant conceptualization of scientific literacy occurs on the micro scale of an individual person. However, scientific literacy can also be exhibited at the meso scale by groups of people in communities of place, practice, or interest. What comprises this community level scientific literacy (CSL) is both understudied and undertheorized. In this paper, we utilized a systematic literature review to describe how CSL is characterized in the extant literature and a Delphi survey of experts to elicit more current thought. Guided by cultural-historical activity theory, inductive and deductive analyses produced seven elements of CSL and their constituent characteristics: (1) resources, (2) attributes of those resources, (3) actors, (4) interactions between actors, (5) contexts, (6) topics, and (7) purposes. The typology created through this process is meant to be generative, serving as a starting point for continuing refinement within science education and other fields related to science learning and knowing.

An understanding of how sensemaking unfolds when elementary students engage in engineering design tasks is crucial to advancing engineering teaching and learning at K-12 levels. Sensemaking has been widely studied in the context of science as a discipline. In this paper, we seek to contribute to the more nascent efforts to build theory about the characteristics of sensemaking in elementary school engineering. We report on an interpretive case study of a 3rd grade student team who worked with minimal adult intervention to design a solution to an engineering challenge. Considering the entire trajectory of their design process, from the given problem to the solution, we observed that they navigated through multiple epistemic conflicts while making decisions that informed their final solution. We found that these conflicts served as opportunities for sensemaking and that exploring how the students resolved conflicts shed light on their sensemaking processes. Analysis of the team's navigation through epistemic conflicts to come to a design decision helped identify two distinct kinds of engineering sensemaking: student engagement in functional reasoning as they suggested design ideas, and student engagement in mechanistic reasoning as they interpreted test results. Both processes facilitated knowledge building, which in turn supported students' engineering design decisions.

Instructional explanations are sometimes viewed as part of a nonconstructivist, solely teacher-centered learning environment, leading to the perception that they are ineffective or inappropriate for teaching science. Consequently, teacher education programmes seldom focus on preparing teachers to explain scientific concepts effectively. Interestingly, the perception of a specific kind of instructional explanation in teaching has evolved in recent years: explanatory videos, in particular, are being viewed as promising digital tools for learning. This article asserts that instructional explanations constitute integral components within nearly all learning environments where communication about science takes place. It has two goals. Firstly, the article aims to develop a coherent, constructivist theory of explaining, including both teacher explanations and explanatory videos. This theory offers an inductive-statistical explanation of the underlying mechanisms of communicative situations that involve experts and novices. Secondly, based on this constructivist perspective, the article distinguishes instructional explanations from scientific explanations and argumentation. It contends that (a) reducing instructional explanations solely to teacher-centered, didactic teaching represents a misconception with potentially adverse effects and (b) it also is a misconception that instructional explanations, scientific explanations, and argumentation are (nearly) interchangeable. The paper argues that instructional explanations, including both teacher explanations and explanatory videos, are not only a potentially effective part of all kinds of science teaching but also a core practice of science teachers.