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Science competitions target students interested in science with the aim to support them in developing science competence and career aspirations. Contrary to the common belief that science competition participants are exceptionally competent and strongly motivated to pursue a science career, there is growing evidence that the entirety of participants is rather heterogeneous in terms of their cognitive and affective characteristics. For science competitions to better support all participants in developing competence and career aspirations, a better understanding of the cognitive and affective characteristics of the entirety of participants is required. This study examined the Physics Olympiad as a specific type of science competitions, leading to a nuanced characterisation of N = 155 Physics Olympiad participants. Latent profile analyses revealed four participant profiles distinguished by specific patterns in cognitive abilities, physics interest, and physics self-efficacy. Profiles differed in their performance in the competition and their physics career aspiration. Grade level, gender, previous participation in the competition, and teacher support explained differences in profile membership. Our findings emphasise that Physics Olympiad participants are a heterogeneous group with varying needs and offer implications for more individualised support activities to better support the entirety of participants in developing science competence and career aspirations.

This study examines the use of critical questions (CQs) as an 'explicit' pedagogical method in the nature of science to teach Chinese high school students topics of philosophy of science (POS). The study results, evaluated through deductive thematic and qualitative comparative analyses using Toulmin's argumentation patterns and a critical integrative argumentation model, revealed that students who participated in the POS course showed significant improvement in understanding and application of argumentation by asking CQs as suggested by instructors. This finding strongly supports the use of CQs for rebuttals in argumentation based on crisp qualitative comparative analysis. The study results have broad implications for how CQs can promote engagement in high school argumentation. The study conclusions highlight the limitations of oral questioning in classroom argumentation. Finally, the study discusses how POS can improve students' classroom argumentation.

The construct of science identity has been gaining attention across various domains in the educational arena. To date, however, no studies have used a person-centered quantitative approach within science identity research that is based upon traditional identity theory. Hence, there is an absence of a theoretical underpinning of the number of science identity classes that might be derived from using person-centered techniques or descriptive dialogues of such classes. Due to this gap in the research and the potentially significant impact of science identity on students' pursuit of STEM studies and subsequent careers, our project team tested the Science Identity Scale rooted in traditional identity theory with a group of rural high school students. Using latent class analysis, an optimal 4-class science identity solution emerged that reflected the four traditional identity statuses -- Achieved, Foreclosed, Moratorium, and Diffused. These classifications predicted student science career interest but also suggested the existence of social inequalities for low socioeconomic students, Latinxs, and African Americans. More study is needed to investigate classification stability over time and to identify factors that contribute to existing social inequalities, thereby providing insight into the effective cultivation of students' science identities and culminating in greater STEM persistence with less inequality.

International science education reforms seek to support teachers in using everyday assessment to draw out and work with student ideas; however, developing these instructional practices requires time and support. This paper investigates how a professional development program supported high school chemistry teachers to learn about formative assessment design with a learning progression for modelling energy. Five high school chemistry teachers participated over the course of one academic year, attending bimonthly school-based sessions in which they designed, enacted, and reflected upon formative assessment tasks. We used qualitative methods to analyze recordings of professional development meetings, videorecorded classroom observations, and interviews. Findings suggest that the professional development approach supported teachers' learning about tools and routines of formative assessment with the learning progression, and in turn, they were able to apply this learning in their classroom practice.

In upper-secondary chemistry education, the concept of 'Amount of Substance' occupies a central position within the computation framework. However, comprehending this concept often poses a challenge for students. To address this issue, our study aimed to design and implement a computation skills test to assess the varying levels of students' computation skills in understanding Amount of Substance. The test was administered to a total of 214 first-year students at the secondary schools. To analyse the test scores and unveil students' comprehensive and mastery levels of computation skills, the SOLO Taxonomy was employed for scoring the levels. Additionally, interviews were conducted to identify the underlying reasons for their learning difficulties. Findings revealed that the majority of students demonstrated proficiency in solving relatively straightforward problems and applying basic formulas. Only a small fraction of students reached the advanced relational level, showcasing their ability to apply chemical concepts and methodologies to solve complex problems. Moreover, students exhibited varying degrees of proficiency when dealing with different types of knowledge and problems associated with computations involving solutions and the quantification of microscopic particles. Interviews uncovered students' major learning difficulties. These findings inform the teachers' teaching of Amount of Substance in chemistry education.

Educational researchers have been interested in studying teachers' professional identity to understand this dynamic and multifaceted construct within personal and professional processes through different experiences. In this study, we designed a qualitative case study with Cultural--Historical Activity Theory (CHAT) to examine physics teachers' professional identity in Turkey. The study aimed to explore the elements of activity systems: teachers' experiences, community relations, tools, resources, rules, division of labour, and teaching practices. Data sources were interviews, classroom observations and documents, which were analysed by constant comparative method. The results showed that teachers recognised the significance of student-centered instruction, but they often had limitations in terms of resources and exam-based education that led them to adopt traditional instruction. The findings emphasised the need for systemic reforms to balance instructional objectives with teaching realities, supply resources, and make the connection between teacher preparation and classroom enactment. The research results support constructivist epistemology and suggest that the physics education community needs to improve the quality of physics education in Turkey and globally.

Context-based STEM learning has been proven to be useful as interdisciplinary storylines to regulate the flow and sequencing of lessons to obtain expected outcomes. This case study pilot project aims to contextualise scientific learning to local culture. Student groups sampled from two schools in distinct social backgrounds, reflected varied Indian population. Pre-service middle school science and social studies teachers conducted eight lessons as an interdisciplinary storyline with a few natural and social science concepts utilising an artefact representing the cultural history of India for seventh-graders. Data were collected through manually recording of students' responses and products made during class activities; researchers' observations and pre-service teachers' feedback about finding solutions to the difficulties faced. In order to address three research questions about socio-cultural context in science-curriculum design, student adoption of 3D learning, and overcoming teachers' challenges, a thematic analysis of data through the lens of five science practices and one crosscutting concept was performed. This study supported context-based STEM learning for the twenty-first century and strengthened cultural anchoring from an early stage implying the need for teacher professional development, curricular reform, and school infrastructure improvements to support policy implementation. Such researches may be extended to varied sociocultural contexts and discipline combinations to offer broader perspectives.

The current study explores the connection and affordances of talk and gesture in collaborative science problem-solving activities using an emerging analytical approach. A total of 15 three to five-member groups of middle school students participated in a set of clinical collaborative science problem-solving activities. Six groups (three low- and three high-performing groups) were selected for further analyses. The data consisted of successive statements in student conversations that were coded as different types of talk and gestures. Pearson Phi correlation test and Epistemic Network Analysis were used to analyze the data. We found that certain types of gesture were moderately associated with certain types of talk. In addition, we found high-performing groups were significantly different from low-performing groups in the use of higher cognitive engagement and collaborative regulation talks. We did not find a significant difference in the use of gestures on their own. However, we found that when talk and gestures were combined, high-performing groups tended to use higher cognitive engagement and collaborative regulation talks with representing and pointing gestures. These findings support previous studies on the affordances of talk and gesture in collaborative science activities and provide more evidence for how multimodality is important in science learning.

The aim of this study is to investigate students' meaning-making of multiple visual representations of epigenetics at different levels of biological organisation, and to discern what visual aspects of the multiple visual representations might influence students' reasoning. Adopting an exploratory approach, we analysed how students made meaning of visually communicated epigenetics phenomena while pointing at and reasoning about the multiple visual representations as part of semi-structured focus groups. We investigated students' meaning-making of the multiple visual representations by analysing their indications through physical pointing and accompanying verbal utterances. The analysis revealed meaning-making and the nature of linking between levels of organisation in four distinct patterns, namely "intra horizontal linking, inter horizontal linking, one level vertical linking" and "two level vertical linking." In addition, five different visual characteristics of the multiple visual representations emerged as influencing students' reasoning while linking between different organisation levels: "multiple visual representations, salient visual features, analogous visual features, familiar visual elements," and "textual adjuncts." The study shows that multiple visual representations at different levels of organisation can support students' meaning-making of epigenetics, indicating that this way of communicating can be transferable to other biological domains. Potential implications for future research and teaching practice are provided.

The decline of females in Science, Technology, Engineering, and Mathematics (STEM) fields has drawn global discourse among researchers and policymakers, including Cambodia. At Cambodian upper secondary schools, female students' enrolment rates in science classes dramatically decreased from 97% in 2014--42% in 2019. In contrast, female students' enrolment rates in social science classes significantly increased from 4% in 2014--58% in 2019. This study aimed to examine factors influencing female students to leave science classes at upper secondary schools. It included 421 female grade-12 students from 20 secondary schools as samples. Due to the nested structure of the data, the two-level hierarchical linear model (HLM) was used for data analysis. The findings revealed that ease of national examination, high passing rates, pursuits for grades, attitudes toward science, and financial burden of private tutoring significantly influenced female students to opt for social science classes over science classes. Female students had no intention to pursue STEM majors and reported that their parents advised them not to involve in science. The findings were discussed with a call for policy implications and improved practices at the school level to promote female students' enrolment in science classes in Cambodia.

Astronomy is seen as a "gateway" science, inspiring students to pursue Science-Technology-Engineering-Mathematics (STEM) related careers. However, there is little evidence that students' attitudes towards astronomy remain stable over time. By integrating Self-Determination Theory (SDT) and Theory of Planned Behaviour (TPB), we identified three dimensions of students' attitudes towards astronomy - intrinsic, which refers to the enjoyment of studying astronomy, extrinsic, which refers to the will to pursue a career in astronomy, and utilitarian, which refers to the relevance of astronomy to society. We used these dimensions as indicators for a Latent Profile Analysis (LPA) to identify attitudinal profiles of 2650 Italian students in grades 9-13. We identified seven profiles, ranging from completely negative to completely positive attitudes. In particular, students enter secondary school mostly interested in astronomy and with a positive view of astronomy. By the end of secondary school, students have significantly lower attitudes towards astronomy in all three dimensions identified. From a theoretical perspective, our study shows that the SDT/TPB framework can be used to develop future instruments aimed at measuring students' attitudes towards science. From a practical point of view, our results call for better support for teachers to maintain students' attitudes towards astronomy throughout secondary school.

Curriculum statements are crucial documents for guiding teaching and learning as they describe the content and skills to be acquired by learners. Textbooks translate curriculum statements into materials for use in schools. This study examines the educative nature of three physical sciences textbooks about electrostatics using the lens of pedagogical content knowledge (PCK). PCK describes the transformation of content into teachable forms and its evidence in textbooks would contribute to the teachability of the content in question. The study analyses textbooks as a source of information that can help teachers transform concepts of electrostatics into teachable forms. The study also proposes a possible model that describes the role of textbooks on teachers' knowledge and practice, as they are not considered in current PCK theories. The framework includes components of PCK described in the grand rubric and the support provided by curricular materials to teachers. The components of PCK are curricular saliency, learners' understanding of concepts, representations, and conceptual teaching strategies. The analysis revealed that curricular saliency was the most predominant component displayed in the textbooks compared to the other components. It is therefore recommended that textbooks should consciously include other PCK components, i.e., representations and strategies that address learners' difficulties.

This paper analyses Australian secondary science teachers' perceptions of their pedagogy and students' classroom engagement based on the Science Capital Teaching Approach (SCTA). Previous research studies related to the idea of teaching to enhance the science capital of secondary students mainly employed qualitative methods to collect data from teachers. This often takes more time and resources to figure out teachers' competency in implementing SCTA-related practices. This study gathered data through an online survey. The responses from the online survey were used to develop the 'Teachers' Self-reporting Science Capital Questionnaire' (TSSCQ) comprising 11 scale variables with alpha values closer to seven or more. The TSSCQ supports secondary science teachers in self-assessing their agreement to the extent to which they incorporate SCTA-related practices into their science lessons. The TSSCQ along with a scoring guide assist the teachers to identify areas that they need to improve. A strong and statistically significant correlation has been found between the teaching practices that value science and scientists and the teaching practices that highlight the utility of science. Moreover, teachers did not strongly agree that they incorporate the teaching practices based on family cultural capital. The implications of these findings have been also discussed.

Learners are expected to discuss and debate, using scientific evidence, the Socio-Scientific Issues (SSI) that often overlap with personal experiences and ethical dilemmas. This study investigated the reasoning of 24 Grade 8 Lebanese students when arguing about a scientific scenario as opposed to an SSI. It also examined how students make decisions and reason about SSIs. Results showed that students' reasoning is more emotional in socio-scientific contexts than in scientific ones. Also, scientific reasoning was based on macroscopic (observed) characteristics of the phenomenon in an SSI but was based on microscopic (cellular/molecular details of mechanisms) features of the phenomenon in scientific contexts. Cultural, social, and ethical considerations influenced students' decisions and reasons when constructing arguments. We discuss the results in light of the literature on reasoning about SSIs and provide instructional implications on how to teach argumentation within SSIs to enhance student reasoning.

Numerous studies have shown that a considerable number of students do not accept the theory of evolution, prompting the scientific community to seek ways to improve how lessons on evolution are designed in order to promote students' acceptance. A crucial factor identified in many studies is students' comprehension of the nature of science and their perceived conflict between religious beliefs and evolution. Our research aimed to investigate the effects of philosophical dialogues on evolution acceptance, with a specific focus on the relationship between religion and science. We conducted an intervention study in 21 high-school classes in Switzerland. Our findings suggest that high-quality philosophical dialogues can enhance students' acceptance of evolution by addressing the perceived conflict between it and religious beliefs. Conversely, low-quality dialogues may intensify the influence of religiosity, negatively affecting evolution acceptance. Our study underscores both the importance of applying philosophical methods skilfully and the potential benefits of incorporating philosophical dialogues into teaching practices. It also highlights the value of fostering a nuanced understanding of the interplay between religion and science in the context of evolution education.

This follow-up study presents a design-based research (DBR) setting implemented over a three-year project called 'eKidZ - Teach Your Parents Well' which uses research-based learning and follows the four phases of DBR. In an iterative cycle, 20 teenagers aged 14-16 took on the role of researchers and investigated intergenerational learning and the multiplier effects of students participating in the Climate Change Education project 'k.i.d.Z.21 - Competent into the Future' on their parents, using the complete research process. Simultaneously, scientists implemented and tested the DBR setting to validate student research findings and to evaluate the quality of the educational setting. In this fully integrated DBR, using multiple methods (quantitative and qualitative), educational and scientific perspectives are brought together to evaluate students' findings and draw conclusions regarding their learning effects. These research results demonstrate that not only did students generate valid and reliable research, but - when changing perspectives - teenagers also contribute to the discussion about closing the gaps in science education and practice. By examining young people's research on Climate Change Education and recognising their contribution in scientific discourse, this paper offers a host of new insights. Highlights: Teenagers take on the role of researchers and perform reliable and valid research results on intergenerational learning and multiplier effects in Climate Change Education, by completing all phases of research-based learning. Design-based research is an effective method to combine science and education and thus delivering novel insights into science education and practice. High-quality Climate Change Education fosters constructive cooperation among all participants with inter - and intragenerational learning and multiplier effects. Constructivism, transdisciplinarity and research-based learning form the basis for effective design-based research and Climate Change Education.

Persistent concerns exist regarding the relationship between socioeconomic status (SES) and science achievement, prompting ongoing research into the factors enabling some low-SES students to excel in science despite the odds. This study seeks to identify multiple combinations of individual, family, and school conditions that contribute to successful outcomes within this demographic. Utilising a sample of 1,460 low-SES Chinese students, aged 15, from the 2015 Programme for International Student Assessment (PISA), this study employs fuzzy-set qualitative comparative analysis (fsQCA) as its methodological approach. The results reveal seven viable pathways that can equally enable low-SES students to achieve academic success in science. These pathways involve a combination of multiple factors, such as parental emotional support, school science instruction practices, and science-related attitudes and beliefs. The analysis also indicates that certain causal factors (i.e. parental emotional support, extrinsic motivation, enquiry-based science instruction practices, or teacher adaptation of science instruction), can be absent in the configurations, but can still contribute to academic resilience when complemented by other conditions (e.g. elevated levels of intrinsic motivation, epistemological beliefs about science, teacher-directed science instruction, or teacher support in science classes).

Some descriptions of learning represent the process as the development of organisations of elements. Various organisations have been proposed, for example, schemata and conceptual structures. Such representations assume that mental entities, such as concepts, are sufficiently stable and differentiated to be treated as units. We discuss these assumptions and propose a new term, assemblages, to refer to a person's activation of two or more conceptual resources in a context. Methodological challenges have resulted in a lack of research that examines how assemblages are formed. This study presents data from a microgenetic, multiple case study of four 16-17-year-old students. The participants were interviewed weekly, using various probes related to forces and motion over six months. We focus on two aspects of the assembly process in our analysis. First, we report data that indicate that participants perceived the units they assembled differently from expert conceptualisations and reflect on the stability of their assemblages. Second, we discuss how participants' expectations about the coherence of knowledge impact their assembly. We propose that future research investigates the stability and boundaries of conceptual resources and suggest teachers and researchers are cautious in assuming that data indicate a conceptual resource is stable or unitary.

Understanding nature of science (NOS) is integral to the development of students' scientific literacy. While NOS studies are growing worldwide, none of these reported on the views of secondary school learners in the Philippines. Hence, this study examined the Filipino junior high school (JHS) students' views of the NOS and determined whether significant differences existed when these views were analysed according to gender and grade level. Through convenience sampling, a total of 173 JHS students from a private school in Davao Region, Philippines, participated in this study. Employing a convergent parallel mixed method design, data were collected using the "Student Understanding of Science and Scientific Inquiry" questionnaire. Analyses of quantitative and qualitative data revealed that the sampled JHS students did not have well-informed views of various NOS aspects. Mainly, students held transitional views of most NOS tenets. Further analysis showed that a significant gender-based difference only existed in the imaginative and creative aspect while, significant grade level-based differences were only noted among Likert responses of students in the tentative and observation and inferences aspects of NOS.

The field of geometrical optics features a broad knowledge base concerning conceptual learning difficulties and student conceptions. However, in contrast to other areas of physics, no widely used standard test instrument exists to assess middle school students' conceptual knowledge of geometrical optics. This is even more true for other areas of the electromagnetic spectrum. For this reason, a concept test was developed for an intervention study to collect preconceptions about visible light as well as preconceptions about infrared radiation in the subject area of reflection and transmission. A pilot study with 108 middle school students preceded final revisions and implementation in the main study of 820 learners aged 12-16. The measurement model is presented for the developed concept test with the subscales 'preconceptions and knowledge about reflection and transmission in visible optics', 'preconceptions and knowledge about reflection and transmission in infrared optics' and 'applied knowledge on reflection and transmission in visible and infrared optics'. The results show that the concept test validly captures the development of preconceptions and knowledge regarding specific aspects of reflection and transmission of the part of the electromagnetic spectrum from 3 µm to 380 nm.

Local biodiversity can help students develop conservation attitudes regarding biodiversity. However, studies reveal students' preferences regarding exotic than local biodiversity. Therefore, more research can permit an improved understanding of the reasons for their interest in these organisms. This research aimed to investigate São Paulo state (Brazil) students' interests and perceptions about their local biodiversity and understand how teaching materials present this topic. A Likert-type questionnaire and semi-structured interviews were used to collect data regarding students' interests and perceptions. Textbooks and handouts analysis included counting quoted living beings and verifying their occurrence in local biomes using open-access datasets. Results showed that the students were less interested in local biodiversity than global biodiversity. They further expressed little knowledge about local biomes and their biodiversity. Teaching materials mostly name living beings that exist in Brazil. However, they offer few explicit examples of them in students' biome. Furthermore, regional teaching materials must deal with more contextualisation. Results from our study support previous research that suggests students need more than proximity to local biodiversity to be aware of it. Therefore, we recommend developing teaching materials focusing on local biodiversity, with follow-up studies examining their impact on student awareness of local biodiversity.

Formative assessment has been long emphasised as a powerful means for enhancing science learning. However, there is still a lack of research to investigate the impacts of formative assessment on both students' motivational beliefs and behaviours in science learning. This study examined such impacts using data from six Western and six East Asian countries/economies in PISA 2015. 96,491 15-year-old students were included. The SEM analysis of overall data showed that (i) formative assessment had both direct effects on students' science learning behaviours and indirect impacts mediated by students' motivational beliefs and (ii) the total effect of teacher feedback on science learning behaviours was greater than adaptive instruction. The comparison between Western and East Asian datasets indicated that (i) the impact of teacher feedback on East Asian students' motivational beliefs was greater than that on their Western counterparts; (ii) the impact of adaptive instruction on Western students' motivational beliefs was greater than that on East Asian counterparts; and (iii) the direct impacts of teacher feedback and adaptive instruction on science learning behaviours were similar for both groups of students. Suggestions were made on how to effectively implement formative assessment to enhance science learning in different cultural contexts.

Numerous artificial intelligence methods have lately been applied in education. This study proposes an Adaptive Neural-network-based Fuzzy Logic (ANFIS) model combining fuzzy logic and artificial neural networks for predicting students' STEM attitudes. The inputs of the research were determined as grade levels and academic achievement scores, and the output was determined as STEM attitudes. The hybrid optimisation method trained the fuzzy inference system (FIS) to recognise the more effective ANFIS model. Afterward, the effects of the input variables on the output variable were examined with statistical techniques. Finally, the students' artificial and real STEM attitude scores were compared. 600 middle school students participated in the study, and data were gathered using a Personal Information Form and STEM Attitude Scale. The study revealed a significant positive correlation (r = 0.298; p = 0.000) between the generated ANFIS scores and real scores, the real and artificial scores didn't indicate a statistically significant difference. Therefore, the results obtained through ANFIS correctly predict students' STEM attitude scores. The grade level and academic achievement variables showed statistically significant differences in STEM attitudes. This study is a concrete example as it shows that it is possible to know some characteristics of students using artificial intelligence.

Out-of-field teaching is viewed as inferior to subject-specific instruction, but its impact on student outcomes varies depending on the criteria used for evaluation. The present study investigated the consequences of out-of-field teaching in science on different student outcomes on an international scale. Analyses were based on the sixth cycle of PISA data, using a subsample of N = 128,438 students (51% girls) and N = 27,819 teachers (44% women) from 4,037 schools in 18 countries. Results show that higher specialised science teachers rates in schools were linked to improved scientific literacy and students enjoyment. Science teachers with specialised science training in a school were associated with higher science competencies in students, while the impact on the enjoyment of science was smaller. However, the share of specialised teachers was not associated with students' self-efficacy or perceived teaching practices. The findings suggest that specialised teachers are critical in positively influencing students' literacy and enjoyment. Moreover, it informs policymakers and school administrators about the need to prioritise hiring specialised science teachers to improve the overall quality of science education. Further research is needed to understand how specialised teachers affect student outcomes and to identify other factors impacting science literacy.

This case study examines how material resistance (limitations posed by the physical world) and graph interpretation intersected during a high school biology investigation using digital sensors. We use an extended episode from a small group to illustrate how, in an inquiry-based unit, measuring near the resolution limit of a sensor caused scaling issues in graphs. Qualitative videotape analysis focuses on both the students' attempts to make sense of a perceived lack of variation in the collected data and the teacher's and classroom researchers' misinterpretation of the students' difficulties with graph interpretation. We suggest that these educators, though experienced, could have benefited from additional strategies to help them recognise and respond to graph interpretation issues introduced by digital representations of real-world data, and that the students could have benefited from explicit prompts to discuss the limitations of their equipment. We describe several implications for researchers, teachers, and curriculum developers interested in implementing inquiry-based biology investigations using sensor data. We argue that students should be supported to recognise that encountering unexpected results from their investigations and working to understand what these results have to say about the real world is an important and valid part of the practice of real science.

While researchers have stressed the importance of engaging students in activities that enhance their reasoning practices, few have scrutinised the factors that impact the reasoning involved in such activities. We explored the role of attitudes in student-group interactions concerning a climate change-related socio-scientific issue and how those attitudes emerged from the reasoning process. We applied Martin and White's [(2005). "The language of evaluation: Appraisal in English." Palgrave Macmillan] appraisal framework for studying attitudes in oral language to analyse two student groups involved in a discourse as they constructed arguments supporting further petroleum exploration. The two groups displayed unique patterns of attitudes towards additional exploration: one group displayed strong, positive attitudes, while the other displayed varied attitudes, including doubt and insecurity. These more complex attitudes in the second group were important to how these students reasoned about the issue, enabling them to appreciate the complexity of the issue, as the expression of multiple perspectives and doubt opened a richer inquiry into the socio-scientific issue, enhancing the quality of their reasoning. Our findings point to the significance of considering students' attitudes when organising activities were students' reason about a socio-scientific issue.

High-stakes assessments prominently influence what is done in secondary school science lessons ('washback' effects). It is therefore important that assessments of knowledge and understanding gained from practical work are constructed to reward and incentivise effective practices in practical work. To do that, they must differentiate between pupils who have experienced practical work in different ways. This empirical, mixed-methods study identifies generalizable characteristics of written assessments that differentially reward pupils who experienced practical activities through hands-on work, teacher demonstration, video demonstration, or reading about the activity. Conclusions are drawn from 1486 post-intervention tests completed by pupils aged 14-15 in England, from lesson observations and teacher interviews. This study also identifies pedagogical practices that were more noticeable in practical work that was most rewarded by the written assessments: the work was teacher-guided; and pupils were encouraged to be active participants. Existing literature describes negative washback effects of high-stakes, written assessments that limit the use and effectiveness of practical work as a pedagogical tool. We describe ways in which written assessments could be constructed to better reward effective practices in practical work (practices that better support learning), with the intention of having positive washback effects on pedagogy by better incentivising these practices.

Drawing upon the model for science teacher assessment literacy developed by [Abell, S. K., & Siegel, M. A. (2011). Assessment literacy: What science teachers need to know and be able to do. In "The professional knowledge base of science teaching" (pp. 205-221). Springer. https://doi.org/10.1007/978-90-481-3927-9_12], this study explored science teachers' knowledge and practices of inquiry-based science instruction (IBSI) in Taiwan, and investigated the possible interactions among the categories of assessment literacy. Forty high school science teachers with relevant experience in IBSI participated in the study. Data were collected from semi-structured interviews and background questionnaires. We analysed the data and developed a coding scheme through both theory-oriented and data-oriented approaches. Four categories of teacher assessment literacy were explored, including assessment purposes, assessed learning outcomes, assessment strategies, and assessment scoring. The results indicated that, through formative assessments, teachers supported students' inquiry-based learning and self-regulated learning in a variety of ways. Furthermore, teachers not only used multiple data sources to assess students' learning performances, but also appreciated both subcategories of assessed learning outcomes - inquiry as means and inquiry as ends. The analysis also revealed some patterns of interactions among the categories of assessment literacy. Based on the findings, discussions and suggestions are provided.

Knowledge of scientific inquiry (SI) is considered essential to the development of an individual's Scientific Literacy (SL) and therefore, SI is included in many international science education reform documents. Two previous large scale international studies assessed the SI understandings of students entering middle school and secondary students at the end of their formal K-12 science education. The purpose of this international project was to use the VASI-E to collect data on what primary level students have learned about SI in their first few years of school. This study adds to previous research to bridge the landscape of SI understandings now with representation from primary, middle and high school samples. A total of 4,238 students from 35 countries/regions spanning six continents participated in the study. The results show that globally, primary students are not adequately informed about SI for their age group. However, when compared with the students in the previous international studies (grades seven and 12), the primary students' understandings were surprisingly closer to the levels of understanding of SI of the secondary school students than those in the seventh grade study.

This quasi-experimental study examined the impact of participation in college-run STEM career days on American high school students' STEM career aspirations. Data were collected from a nationwide retrospective cohort survey of 15,847 U.S. college students who provided information about their experiences during high school. Accounting for self-selection effects and a robust set of controls, results showed that students who participated in a college-run STEM career day during high school had 1.3 times the odds of expressing STEM career aspirations compared with a control group. We found that STEM career days were equally effective in promoting American students' STEM career aspirations across background characteristics, levels of academic preparation, and prior STEM interest. Results suggest that policymakers and educators should seriously consider implementing STEM career days for high school students as an evidence-based strategy to effectively increase STEM career interest.

To make sound science-related decisions in a global society, individuals must possess a science identity, or see themselves as capable of doing and understanding science. Science identity development begins in school-aged years, when multilingual students (MLs) are often marginalised in the classroom due to language challenges and low expectations placed on them. This descriptive multiple case study explores the science identities expressed by six US high school MLs in their biology classrooms. Data from semi structured interviews were analysed through qualitative coding methods. Secondary data sources included field notes from observations conducted in each student's classroom six times during the school year. Results revealed that all MLs expressed science identity indicators, including feeling like a scientist, having a personal interest in science, and seeing science as related to their worlds. Other important identity indicators were not expressed among all students, such as views of themselves as 'good' science students, doing or using science outside of school, and career aspirations. Over half of MLs cited language as a direct barrier to their science identities. The study makes several contributions to the field of science education, which are detailed. Implications are presented for nurturing MLs' science identities in the formal classroom.

One issue facing teachers who implement model-based instruction within the school system is the tight curricular schedule. The 'lesson objective tension' calls for investigations to address instructional issues such as how to organise modelling-based instruction at the curriculum level which is across multiple units. We investigated the effect of the cyclic curricular design spacing out three modelling-based instruction units with virtual labs over three semesters, each involving 73, 181, and 150 junior high school students, respectively. Results indicate that, overall, the approach of modelling with virtual labs better promoted students' scientific literacy than the traditional instruction did. Specifically, students with low and moderate school science achievements benefitted more as shown in their scientific literacy scores than did the high achievement students. Furthermore, this study found that receiving one unit of modelling-based instruction may not be sufficient to promote students' scientific literacy, whereas the cyclic approach that suggests students receive two or more units of modelling-based instruction with virtual labs spaced over consecutive semesters had significant effects on promoting students' scientific literacy. The results provide insights into when and how modelling-based learning with virtual labs can promote scientific literacy at a curricular level.

Teachers can develop science literacy among pupils through Inquiry-Based Science Education. IBSE helps to evolve the inquiry skills necessary for understanding the world of science and nature. To be able to improve the level of inquiry skills systematically, we need to know the current level among pupils. For this reason, we designed a multiple-choice test that measures the level of inquiry skills among 13 to 15 years old pupils. The design of the test consisted of six steps: selection of inquiry skills, construction and administration of open-ended test, creation of a database of distractors, construction of multiple-choice test, pilot testing and application of optimised test in pedagogical research. The designed test can be considered a valid and reliable research instrument and the individual test items show a relatively high discriminating power, optimal level of difficulty and a high number of functional distractors. By analysing the most common incorrect answers, we were able to identify various difficulties pupils have, regarding the application of inquiry skills in solving items. These results will help us to design appropriate strategies for improving pupils' inquiry skills in science education.

Teachers, pre-service teachers and teacher educators in Australia are predominately European Australian with a small minority of First Nations people. Those with limited first-hand understanding of First Nations ways of knowing can find it difficult to embed these knowledges across learning areas. This is particularly complex for pre-service teachers. We argue that all teacher educators have a responsibility to engage First Nations ways of knowing across learning areas as an ethical and professional commitment to preparing pre-service teachers for negotiating the complexities of Australian histories and living cultures. This paper reports on interventions implemented with final year primary/middle pre-service teachers with an expertise in science and mathematics. Firstly, we discuss pre-service teachers' confidence (self) ratings in integrating their understanding of Aboriginal and Torres Strait Islander histories and cultures across the curriculum. Secondly, we present an in-depth exploration of two pre-service teachers' transdisciplinary units of work which embed Aboriginal and Torres Strait Islander knowledges and practices. This study challenges all science and mathematics teacher educators to consider ways a transdisciplinary, culturally responsive approach prepares students to transition into confident and competent early career teachers.

This paper analyses how 8th graders build epistemic practices of evaluation of knowledge. Guided by Ethnography in Education, we followed a group in their science lessons through one year, using participant observation. Following Kelly's propositions concerning epistemic practices, we selected key events towards an analysis of discursive interactions. The results indicate a trajectory of changes in constructing practices of evaluation of knowledge over time. The repertoire built by the group throughout 8th grade allowed students to evaluate knowledge claims in order to value alleged scientific evidence to the detriment of other rationalities. Evidence, in this case, was being used as a tool for students to support and communicate their propositions, but they were not evaluated. Events that broke with rationality based on the use of evidence generated opportunities for the group to start engaging in practices such as: evaluating the quality of alleged scientific evidence, pondering possible errors, or proposing alternative interpretations. Future events in the history of the group throughout 9th grade indicate that this type of practice became part of their discussions. We discuss implications for pedagogical practice and research in science education.

This study explored the relationship between middle school students' mathematics- and science-related motivational dispositions and their attitudes toward STEM-related careers. To better understand these constructs, we regressed motivational variables from the Situated Expectancy-Value Framework (Eccles, J. S., & Wigfield, A. 2020. From expectancy-value theory to situated expectancy-value theory: A developmental, social cognitive, and sociocultural perspective on motivation. "Contemporary Educational Psychology," 61, 101859), on attitudes toward STEM careers by gender, race/ethnicity, and age. Findings showed that, among the five motivational disposition variables (i.e. self-efficacy, identity, enjoyment, utility value, and cost), utility value was the strongest predictor of STEM career attitudes and science-related motivational dispositions explained the variation in STEM career attitudes more than mathematics-related motivational dispositions. We also found changes in the strength of the relationship between students' motivational dispositions and STEM career attitudes by gender, race, and age. Finally, we reported an indirect effect of self-efficacy on STEM career attitudes mediated by identity, interest, utility value, and cost, a finding that may explain the perplexing results by prior research that contradicts some current theories of self-efficacy and career motivation.

Resilient students attain high levels of academic achievement despite the presence of chronic socioeconomic disadvantage. Identifying factors that promote resilience in the domain of science is crucial to making equitable and high-quality science education accessible for all students. Rooted in the opportunity-propensity framework, this study examined the relative importance of opportunity, propensity, and antecedent factors in understanding academic resilience. The data came from 3377 Grade 8 students in Hong Kong. Among them, 844 students who are in the bottom 25% of SES were selected. Machine learning analyses indicated that ten variables best predicted academic resilience. These variables, in order of predictive power, were: confidence in science, home resources, liking for learning science, valuing of science, instructional clarity, instructional time, content exposure to biology topics, sense of school belonging, school emphasis on academic success, and content exposure to physical science. Mean-level comparisons corroborated the machine learning findings showing that resilient students scored higher on these variables than non-resilient students. This study demonstrates the complexity of academic resilience in science by showing the relative importance of multiple predictors. The findings of the current study could provide policymakers and practitioners with information to identify the most promising intervention targets to promote academic resilience.

Bilingual education could solve many challenges introduced by an increasingly internationalised education system. Content and Language Integrated Learning (CLIL), in particular, may equip students with the necessary cultural and communicative skills to succeed in today's academic environment. However, it is not yet clear how CLIL can be employed effectively in short-term educational contexts where full-term bilingual programmes are not feasible. We designed and assessed a one-day CLIL module for ninth graders at our university's gene-technology lab. The assessment of our module with 252 grammar school students indicates that a CLIL module does not achieve the same learning success as an equivalent non-CLIL module. Even with additional language scaffolding material, full access to online dictionaries, and the availability of crucial workbook passages in their native language, CLIL students could not achieve the same short-term content learning success. We consequently argue that more attention should be paid to the inherent trade-off between language and content learning when carrying out short-term CLIL programmes. Moreover, we caution against using only content and language scaffolding to mediate this trade-off.

Science academic achievement is a key construct for examining students' science learning outcomes. While international comparative assessments like TIMSS and PISA have shown high science achievement of Korean middle school students, there is a lack of comprehensive investigation of factors influencing the achievement using domestic data. Additionally, the impact of COVID-19 on science achievement-related factors remains largely unexplored. This study utilises multi-level structural equation modelling to examine the factors affecting science achievement among Korean middle school students. By analysing data from the National Assessment of Educational Achievement (NAEA), we identify individual- and school-level variables that affect student science achievement. The model fitting results were compared before (2018--2019; N = 5771 and N = 5614) and after (2020; N = 4,623) the COVID-19 outbreak. The analysis results reveal that individual-level factors, such as self-efficacy, affective domain of science learning, and self-studying time had significant effects on science achievement consistently throughout years. School-level factors, including principal's supervision, school climate, and science teacher's efficacy, demonstrated significantly positive effects on science achievement only in 2020 following the COVID-19 outbreak. This study enhances our understanding of the characteristics of high-achieving Korean middle school students and highlights the role of school community in supporting student learning during uncertain circumstances like the COVID-19 pandemic.

While students tend to enjoy their science learning at a young age, as they mature, they tend to distance themselves from science, becoming less motivated to engage with science and holding negative attitudes towards science. In parallel, a career choice in science often begins to develop during early adolescence. To understand how the environment and students' inner worlds shape the development of their self-positioning in relation to science, this longitudinal study followed nine adolescents, aged 10-14, over 3 years, in and out of school, and created nine individual stories describing these participants' self-positioning in relation to science, and how these positions changed, from their perspective, over time and contexts. We found some common experiences that played a role in the participants' self-positioning in relation to science. In several of these experiences, the longitudinal nature of this study became apparent. This study highlights the complexity of adolescents' self-positioning in relation to science and how these positions change over time.

This article explores the perception of gender inequality in science and the influencing factors. Data was collected through in-depth interviews with students belonging to a science club; we present it as a case study. This research sheds light on what high school and university students studying Science, Technology, Engineering, and Mathematics (STEM) perceive in Mexico, where the gender gap is the highest of all scientific disciplines, considering the relationship between science and gender through their study experiences and perspectives. The findings mainly revealed two positions: (1) denial of gender inequalities; and (2) recognition of gender inequalities associated with biological, psychological, and social factors. It is precisely this last factor that is based on a feminist position. How students define and label inequalities varies according to their participation in previous formative experiences linked to gender and contextual influences. Science education activities with a gender perspective are necessary in non-formal education spaces such as science clubs. In this sense, this work offers recommendations that can stimulate the design of training actions for a better-balanced integration of science and gender.

Internationally, there are calls for students to be able to use their scientific understandings to make informed decisions about the world in which they live. Using a mixed methods case study design, this study investigated the impact of behaviours and strategies used by two early career science teachers who taught argumentation about a water-based socioscientific issues (SSI) to their Year 7 students. Students' argument quality, measured using Toulmin's argument structure, improved significantly from pre- to post-instruction (p = 0.0033). There was also a significant increase (p = 0.0037) in the number of types of categories. Qualitative data comprising classroom audio-transcripts, field notes, student work samples, teacher interviews and student reflections were analysed using inductive analysis to identify four themes related to teacher behaviours and teaching strategies: (1) developing and maintaining a safe classroom environment; (2) providing clear instructions about the features of quality arguments; (3) providing opportunities for all students to think and work individually and collaboratively; and (4) practising oral and written argument construction with gradual removal of scaffolds. While the findings are not generalisable teacher educators can use their expertise to decide the extent to which the teacher strategies and behaviours would support the development of argumentation skills in their particular context.

The systems thinking approach requires understanding and interpreting complex systems. This review investigated how the systems thinking approach in science education is positioned in peer-reviewed empirical research articles and to identify the trends used in the current literature. A systematic review of open-access, empirical peer-reviewed articles indexed in the Web of Science database from first mention through the end of 2022 was conducted to analyze the studies on systems thinking in science education. This qualitative study used a content analysis approach to identify trends in the research area of systems thinking in science education. The results revealed that research on systems thinking in science education has increased in recent years, mainly from the United States and Germany. Most studies focused on middle and high school students, and ecosystems were the most frequently addressed domain-specific topic. More than half of the reviewed articles used complexity, relationships, components, interactions, interrelationships, and dynamics as characteristics of systems thinking. The results showed that there was uncertainty in the use of the characteristics, skills, and abilities of systems thinking, and that these three terms were used interchangeably. This research can provide evidence-based indications of areas that need further investigation in future research.

A curriculum is generally regarded as an instructional plan that describes what, why and how students should learn. In this comparative study, we analysed the Czech and Slovak intended curricula of science subjects (physics, chemistry, biology, geography, and geology) and mathematics by comparing their national curriculum documents in terms of learning outcomes at the lower secondary level (ISCED level 2). Our analysis showed significant differences in the number of obligatory learning outcomes, which were much higher in the Slovak curriculum than in the Czech curriculum. The structure of these outcomes also differed across subjects and between countries. Nevertheless, the cognitive demands of the learning outcomes analysed using the revised Bloom's taxonomy were similar in the two countries, but metacognitive knowledge and higher-level cognitive processes were rarely represented in either. Additionally, by inductive content analysis of the Slovak curriculum document, we identified two significant groups of cross-curricular requirements, namely outcomes related to scientific inquiry and outcomes requiring working with information. Overall, these learning outcomes are underrepresented in both analysed documents (particularly in the Czech document) even though the skills that these outcomes develop are in high demand in the current context.

This study validated an instrument for measuring student engagement in the context of Chinese science curriculum reforms. We adapted existing items from well-designed instruments with the context of science learning and formed the initial instrument of the Student Engagement in Science Learning (SESL) consisting of 20 items in four subscales, including cognitive, emotional, behavioural, and agentic engagement. We recruited an expert panel to provide content and face validity during the adaptation process. The final sample of 578 was collected and analysed to provide the construct validity of the SESL instrument. The results from item analysis, confirmatory factor analysis, correlation analysis conformed the instrument's convergent and discriminant validity. Independent t-tests of gender and district groups confirmed the concurrent validity of the instrument. The Cronbach's coefficient alpha of the four subscales and the total scale are higher than 0.70, indicating the SESL instrument has the internal consistency reliability for measuring student engagement in science learning. Researchers and practitioners would benefit from the valid and reliable SESL instrument with the four constructs to measure and improve student engagement in science learning.

The study implements and investigates an innovative learning approach that incorporates Flipped Classroom (FC) methodologies and electronic assessment (e-assessment) in Context-Based Learning (CBL) in chemistry among middle school students. The study incorporated mixed methods strategies and (a) examined learners' attitudes toward and perceptions of CBL in a hybrid environment in learning chemistry by using a structured, open-ended questionnaire; (b) examined learners' awareness of the relevance of chemistry concepts and content to real-life and real-world situations by using a learning diary to examine activities initiated by the learners themselves; and (c) examined the correlation between learners' achievements on online tasks and their achievements on a final written test. The findings revealed the students' positive attitudes toward CBL in a hybrid environment using FC strategy. In addition, learning chemistry in a context-based approach helped learners see that the curriculum is relevant to phenomena that they encounter in real life and the real world. Furthermore, a strong correlation emerged between the learners' achievements on the online assignments and their achievements on a conventional written test. This study adds knowledge about attitudes toward a context-based FC approach with e-assessments among middle school students, a population that has been the topic of very little exploration.

Efforts to attract and retain women in science are increasing, yet girls and women are persistently underrepresented in science education worldwide, limiting their preparation for, access to, and opportunities in science-related careers as adults. Based on qualitative research conducted in six secondary schools in Tanzania and informed by UNESCO's Ecological Framework for Female Participation in Science, this study explored structural limitations and sustainable alternatives to girls' participation in science education. The study identified a number of structural limitations, including the dominance of patriarchal ideologies about science, the lack of female science teachers, inadequate resources for science learning and heavy domestic workloads. Similarly, increasing the supply of teaching and learning resources, motivating female students to study science, and raising awareness among students, teachers, parents and community members of the importance of girls' participation in science education were identified as key sustainable alternatives. Overall, interventions to address cultural and social norms related to gender stereotypes and gender equality in policies, legislation, media and teachers' pedagogical practices are essential to promote girls' participation in science education.

Science is part of the educational curricula, and its teaching is the responsibility of teachers. Since 2000, scholars from The Organisation for Economic Co-operation (OECD) countries have been tested in science by the Programme for International Student Assessment (PISA), despite the diversity in national higher education systems. This requires a global perspective on teaching methods and the scientific competencies of teachers. This systematic review addresses scientific knowledge among educators and the strategies for improving this knowledge in higher education. The twenty-five articles were evaluated following PRISMA guidelines. Five large databases (WOS, Scopus, Proquest, EbscoHost and PubSyc) were searched systematically using the main concept of scientific literacy in the target group: teachers, pre-service teachers, and educators involved in science education. Google Scholar was also examined to avoid publication bias. The procedure was guided by the CADIMA Software to ensure transparency and accuracy. The findings indicate medium or low levels in scientific literacy (SL) and low scores in the nature of science (NOS) among the sample. Explicit instruction, such as inquiry-based, solving-problem, and modelling approaches, could enhance the teaching and learning of science by improving the depth of knowledge current and future teachers transfer to their pupils.

We explored the potential for addressing nature of science through a historic narrative about disagreement between researchers concerning a socio-scientific issue, incidence of juvenile thyroid cancer following the Fukushima Daiichi nuclear accident. The narrative was developed from authentic sources and tested in two cycles. Eight groups of three to four high-school students were audio recorded. Transcripts were analyzed regarding what nature of science emerged in the discussions and what understanding about NOS could be discerned, using three complementary NOS-frameworks (Consensus-NOS, Whole Science-NOS, FRA-NOS). Together, the student groups touched upon 19 different NOS-themes as they tried to make sense of the disagreement related in the narrative. All groups addressed a common core of NOS-themes, most of which were central to the narrative itself, although some themes that were not part of the narrative also emerged. Students displayed a basic understanding of the tentative, empirical, and subjective nature of science together with the role of evidential relevance and completeness of evidence related to the choice of scientific methods. On the other hand, students did not reckon with peer review as a means for establishing knowledge and resolving disagreement. Moreover, although students readily accepted disagreement as a basic property of science, they had difficulty handling this disagreement when coping with the SSI in the narrative. We discuss how the combination of history of science-in-the-making and SSI in narrative form offers opportunities to teach NOS without risking simplified messages of how scientific knowledge develops or how science can be used to address socio-scientific issues.

The past century has seen a debate on what characterises a scientifically literate citizen. Originally, scientific literacy implied that a citizen should know the products of science but has grown to incorporate processes of science and aspects of the nature of science. Studies on students' epistemic knowledge are rarer than ones on students' content knowledge. However, PISA has made an innovative attempt to measure epistemic knowledge. The purpose of this study is to investigate qualitative features in student responses to epistemic items in PISA. Six constructed response items on epistemic knowledge from PISA 2018 Science were chosen. The student responses coded as 'full credit' were put aside and thematic analysis was used to analyse the remaining 'no credit' responses. The results show that it is common to focus on the scientific phenomenon (content knowledge) or the method itself (procedural knowledge) instead of epistemic knowledge. One feasible explanation is that epistemic knowledge is intellectually demanding; another is that epistemic knowledge is still overshadowed firstly by content knowledge and secondly by procedural knowledge. The fact that students tackle epistemic aspects of science as content or procedural knowledge suggests that teaching should more explicitly distinguish between these different aspects of scientific knowledge.