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Among the relevant aspects of the family resemblance approach (FRA), our study focuses on the potential of the approach to elaborate on disciplinary identities in an interdisciplinary context, specifically regarding the interplay between physics and mathematics. We present and discuss how the FRA wheel can be used and intertwined with the framework of boundary objects and boundary crossing mechanisms (Akkerman & Bakker, "Review of Educational Research," 81, 132-169, 2011), which is well-known in STEM education for dealing with interdisciplinarity. The role of the FRA discussed in the article is dual: both practical and theoretical. It is practical in that we show how its use, in combination with the Akkerman and Bakker framework, appears effective in fostering productive discussions among prospective teachers on disciplinary identities and interdisciplinarity in historical cases. It is theoretical in that the combination of the two frameworks provides the vocabulary to characterise the 'ambiguous nature' of interdisciplinarity: like boundaries, interdisciplinarity both separates disciplines, making their identities emerge, and connects them, fostering mechanisms of crossing and transgressing the boundaries. This empirical study reveals how the theoretical elaboration took advantage of the prospective teachers' contributions. We initially presented the FRA to characterise disciplinary identities, but the prospective teachers highlighted its potential to characterise also the boundary zone and the dialogue between physics and mathematics. The data analysis showed that the combinination of the two frameworks shaped a complex learning space where there was room for very different epistemic demands of the prospective teachers: from those who feel better within the identity cores of the disciplines, to those who like to inhabit the boundary zone and others who like to re-shape boundary spaces and move dynamically across them.

The article describes the analysis of the Italian physics curriculum documents in terms of the coverage of nature of science (NOS). NOS is not explicitly presented as part of the Italian high-school physics curriculum. The article focuses on analysing the implicit aspects of the curriculum documents. The Family Resemblance Approach (FRA) to NOS was used as an analytical lens. FRA was chosen because of the broad range of categories that it provides to trace curriculum content. Curriculum documents were analysed using the FRA categories as well as an Epistemic Network Analysis (ENA) which has shown important limitations in the FRA categories 'Political Power Structures, Scientific Ethos, Professional Activities'. These aspects of NOS belong to the social-institutional aspects of the FRA framework. There were also some inconsistencies between the general section and the specific sections of the curriculum. The study elaborates on how FRA and ENA can be used to analyse NOS content in a science curriculum. The epistemic networks provide concrete illustrations of where curriculum revision can best be carried out to promote underrepresented aspects of NOS. Implications for future research and recommendations for curriculum reform internationally are suggested.

The article sets out to contribute to the educational challenge launched by the second quantum revolution. An approach to quantum computing has been outlined for secondary school students. The approach is shaped as a set of four principles that have been pointed out to design instructional materials to enhance the educational and cultural potential of quantum computing, beyond the technical aspects. In the paper, following a presentation of the design principles, we focus on an activity on quantum teleportation protocol. The activity is described in detail to show how the principles have been concretely implemented. A pilot study with a small sample of secondary school students has been carried out to evaluate the potential of the approach. The results, although preliminary, show that the approach appears to be promising in creating an inclusive and productive learning environment, in which students feel encouraged to search for personal ways to combine different levels of discourse (narrative, logical, mathematical, technical-experimental) and generate meaningful descriptions of the phenomenon.

This article takes its point of departure from the younger generation's problematic relationship with time and the future. A general sense of changeability and directionlessness in society compromises young people's confidence in themselves to make a difference as individuals in important global issues affecting their futures, such as climate change. Given recent aims and commitments of science education to promote sustainable development and student agency, this study explores how science teaching can help students imagine and face possible future scenarios and develop agency in the present to influence them. This article presents a science education approach to equip secondary school students with skills of futures thinking and agency that we call "future-scaffolding skills." It also shows the process of building an operational definition for recognizing those skills in students' discourse and actions. For this purpose, an empirical study was carried out in the context of a teaching--learning module on climate change, consisting of activities inspired by the field of futures studies. Essays, individual and group interviews, questionnaires, and video recordings of students' final projects were collected from 24 students (16-19-years old) from three European countries. The results contribute to operationally defining "future-scaffolding skills," consisting of "structural skills" (the ability to recognize temporal, logical and causal relationships and build systemic views) and "dynamical skills" (the ability to navigate scenarios, relating local details to global views, past to present and future, and individual to collective actions).

The crisis due to the COVID-19 pandemic led most people all over the world to deal with a change in their perception and organization of time. This happened also, and mainly, within the educational institutions, where students and teachers had to rearrange their teaching/learning dynamics because of the forced education at a distance. In this paper, we present an exploratory qualitative study with secondary school students aimed to investigate how they were experiencing their learning during lockdown and how, in particular, learning of science contributed to rearranging their daily lifetime rituals. In order to design and carry out our investigation, we borrowed constructs coming from a research field rather unusual for science education: the field of "sociology of time." The main result concerns the discovery of the potential of the dichotomy between "alienation from time" and "time re-appropriation." The former is a construct elaborated by the sociologist Hartmut Rosa to describe the society of acceleration in the "era of 'future shock'". The latter represents an elaboration of the construct of "appropriation" that the authors had operationally defined, starting from Bakhtin's original idea, to describe the nexus between physics learning and identity. Thanks to the elaboration of the notion of "time re-appropriation" as feature of the "era of 'present shock'", the study unveils how school science, instead of preparing the young to navigate our fast-changing and complex society, tends to create "bubbles of rituals" that detach learning from societal concern.

This paper investigates how features of teaching practice may foster appropriation: learning that involves both deep conceptual understanding and transforming scientific discourse in a way that is significant for oneself. Data were drawn from classroom discussions during a unit on thermodynamics that took place in a high school in Italy. We analyze a specific metaphor "tightening the reins and letting them loosen" used by the teacher to characterize her practice. By contrasting episodes of classroom discussion in terms of talk moves and participant frameworks, we discovered that behind the metaphor was a complex epistemological scaffolding that the teacher enacted across her lessons. This scaffolding was articulated across four moments of discussion, each with a different function and purpose: Sharing the construction of a collective disciplinary narrative, Elaborating the narrative in epistemological terms by articulating criteria for comparing different approaches to the disciplinary content, Analyzing the comparison criteria to test their robustness and consistency, and Situating oneself with respect to different approaches to the content informed by the refined criteria (SEAS). We argue that these functions provided the scaffolding for physics to be a context for both disciplinary learning and students' search for personal relevance and meaning.

Can science teaching contribute to developing skills for managing uncertainty towards the future and projecting imagination forwards? If so, how? In this paper, we outline an approach to 'teach the future' through science education. In the first part, we describe a framework that has been constructed to orient the design of teaching modules comprised of future-oriented educational activities. Then, a teaching module on climate change is described. The module was tested in a class of upper secondary school in Italy (grade12) and the main results are reported. They concern a change in perception of the future, as revealed by students: from far and unimaginable, the future became conceivable as a set of possibilities, addressable through concrete actions and within their reach, in the sense that they became able to view themselves as agents of their own future. The results lead us to argue that the approach appears promising in developing 'futurescaffolding skills', skills that enable people to construct visions of the future that support possible ways of acting in the present with one's eye on the horizon.

This paper aims to provide a contribution to the research in physics education regarding the interplay between mathematics and physics in teaching and learning physics at the university level. The argument is developed through a study focused on the historical case study of the blackbody that led Planck to make one of the most significant scientific breakthroughs in physics: the introduction of discreteness and quantization into physical processes. The study is methodologically guided by the model that Udhen, Karam, Pietrocola, and Pospiech elaborated to highlight the interplay between physics and mathematics within teaching and learning practices [O. Uhden, R. Karam, M. Pietrocola, and G. Pospiech, Modelling mathematical reasoning in physics education, Sci. Educ. Netherlands 21, 485 (2012).]. The model emphasizes the distinction between the technical and structural roles of mathematics in physics, with the latter role being argued to correspond to processes of mathematization and interpretation. We used this model to analyze Planck's original papers and to reconstruct the reasoning that, thanks to the structural role played by mathematics, paved the way for the quantistic scientific breakthrough. The results of the analysis led us to design a teaching tutorial that we implemented with mathematics and physics university students. Students' reactions are reported to discuss the educational potential of the approach beyond the specific case and to argue for its potential general application to other similar physics topics.

Pursuing both disciplinary authenticity and personal relevance in the teaching and learning of science in school generates tensions that should be acknowledged and resolved. This paper problematizes and explores the conceptualizations of these tensions by considering personal relevance, disciplinary authenticity, and common school science as three perspectives that entail different educational goals. Based on an analysis of the literature, we identify five facets of the tensions: "content fidelity," "content coverage," "language and discursive norms," "epistemic structure and standards," and "significance." We then explore the manifestations of these facets in two different examples of the instruction and learning of physics at the advanced high school level in Israel and Italy. Our analysis suggests that (1) the manifestations of these tensions and their resolution are highly contextual. (2) While maintaining personal relevance and disciplinary authenticity requires some negotiation, the main tension that needs to be resolved is between personal relevance and common school science. (3) Disciplinary authenticity, when considered in terms of its full depth and scope, can be equipped to resolve this tension within the discipline. (4) To achieve resolution, teachers' expertise should include not only pedagogical expertise but also a deep and broad disciplinary understanding.

This article provides an empirical analysis of a single classroom episode in which students reveal difficulties with the concept of proper time in special relativity but slowly make progress in improving their understanding. The theoretical framework used is “coordination class theory,” which is an evolving model of concepts and conceptual change. The paper will focus on showing to what extent and in what sense most of the conditions and events in the data corpus seem understandable from the point of view of coordination class theory. In addition, however, some extensions of the theory are implicated, although we argue that they are “natural” extensions, improvements that extend, but do not threaten, the core theory. In particular, we observe students articulately aligning different ways of determining proper time, and we conjecture, more generally, that such a process is strongly consistent with coordination class theory and likely to be productive in other cases of conceptual change. The empirical analysis is explicitly connected to the general issue of theories and theory development in studies of conceptual change.

The scientific community has been debating climate change for over two decades. In the light of certain arguments put forward by the aforesaid community, the EU has recommended a set of innovative reforms to science teaching such as incorporating environmental issues into the scientific curriculum, thereby helping to make schools a place of civic education. However, despite these European recommendations, relatively little emphasis is still given to climate change within science curricula. Climate change, although potentially engaging for students, is a complex topic that poses conceptual difficulties and emotional barriers, as well as epistemological challenges. Whilst the conceptual and emotional barriers have already been the object of several studies, students' reactions to the epistemological issues raised by climate changes have so far been rarely explored in science education research and thus are the main focus of this paper. This paper describes a study concerning the implementation of teaching materials designed to focus on the epistemological role of "models and the game of modelling" in science and particularly when dealing with climate change. The materials were implemented in a course of 15 hours (five 3-hour lessons) for a class of Italian secondary-school students (grade 11; 16-17 years old). The purpose of the study is to investigate students' reactions to the epistemological dimension of the materials, and to explore if and how the material enabled them to develop their epistemological knowledge on models.

The goal of this article is to contribute to understanding the interplay between students' disciplinary engagement and their identity construction. The term appropriation, borrowed from scholars in linguistics and education, was chosen to capture this broader sense of productive learning that sits at the nexus of disciplinary engagement and identity. Appropriation implies deep conceptual understanding, but it also involves a reflexive process of transforming scientific discourse in a way that is authentic and personal. The core aim of this article is to turn the term appropriation into a theoretical construct by means of an analytic process of defining, operationalizing, and testing the definition against student interview and classroom data. Five discourse markers for operationalizing appropriation were discovered through this process. Appropriation, in our study, implies students' discourse is (A) an expression of a personal "signature" idea, (B) grounded in the discipline, (C) thick, in that it involves a metacognitive and epistemological dimension, (D) non-incidental, in the sense of being consistently used throughout classroom activities, and (E) a carrier of social relationships, in that it positions the student within classroom. The study is grounded in an extended intervention on thermodynamics in an Italian secondary school class (grade 12).

The paper deals with physics teaching/learning in high school. An investigation in three upper secondary school classes in Italy explored the reactions of students to a structuring lecture on optics within the discipline-culture (DC) framework that organises physics knowledge around four interrelated fundamental theories of light. The lecture presented optics as an unfolding conceptual discourse of physicists regarding the nature of light. Along with the knowledge constructed in a school course of a scientific lyceum, the students provided epistemological comments, displaying their perception of physics knowledge presented in the classroom. Students' views and knowledge were investigated by questionnaires prior to and after the lecture and in special discussions held in each class. They revealed a variety of attitudes and views which allowed inferences about the potential of the DC framework in an educational context. The findings and interpretation indicate the positive and stimulating impact of the lecture and the way in which DC-based approach to knowledge organization makes physics at school cultural and attractive.

This paper aims at supporting the claim that some forms of hyper-simplification, by making physics seem easy, are at risk of dangerously distorting the content as well as the process of learning physics. The paper presents examples of dangerous simplifications in the teaching of quantum physics. Then, examples of productive forms of complexity are discussed, both as criteria for designing teaching proposals, and for realizing appropriate learning environments, namely properly complex territories. Empirical results, from a teaching/learning experiment on quantum physics at upper secondary school (grade 13), are reported. These results show examples of students' reactions to travelling through a complex territory, and allow us to argue that unavoidable difficulty in learning quantum physics can be transformed into cultural challenges within reach of secondary school students.

This paper concerns an empirical study carried out with a group of high school physics teachers engaged in the Module on relativity of a Master course on the teaching of modern physics. The study is framed within the general research issue of how to promote innovation in school via teachers' education and how to foster fruitful interactions between research and school practice via the construction of networks of researchers and teachers. In the paper, the problems related to innovation are addressed by focusing on the phase during which teachers analyze an innovative teaching proposal in the perspective of designing their own paths for the class work. The proposal analyzed in this study is Taylor and Wheeler's approach for teaching special relativity. The paper aims to show that the roots of problems known in the research literature about teachers' difficulties in coping with innovative proposals, and usually related to the implementation process, can be found and addressed already when teachers approach the proposal and try to appropriate it. The study is heuristic and has been carried out in order to trace the "appropriation path," followed by the group of teachers, in terms of the main steps and factors triggering the progressive evolution of teachers' attitudes and competences.