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"Geelan, David"
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Physical Science Teacher Skills in a Conceptual Explanation
There is a long history of philosophical inquiry into the concept of explanation in science, and this work has some implications for the ways in which science teachers, particularly in the physical sciences (physics and chemistry), explain ideas to students. Recent work has outlined a constructivist approach to developing, delivering, and refining explanations focused on enhancing student’s understanding of the powerful concepts of science. This paper reviews the history of concepts of explanation in science and in science teaching, and reports research findings that describe some ways in which science teachers have been observed to explain ideas in Year 11 Physics classrooms in Australia and Canada.
Journal Article
A Systematic Review of Meta-Analyses on the Impact of Formative Assessment on K-12 Students’ Learning: Toward Sustainable Quality Education
Formative assessment in K-12 education has been a notable teaching and learning focus area in schools over the last 20 years, as evidenced by numerous recent systematic reviews and meta-analyses investigating and summarizing the evidence for formative assessments’ effectiveness and sustainability. This umbrella review systematically reviews meta-analyses investigating the effects of formative assessment on learning, summarizes the current findings, and assesses the quality and risk of bias in the published meta-analyses. Meta-analyses were identified using systematic literature searches in the following databases: Scopus, ERIC, Academic Research Complete, ProQuest, APA PsycArticles, SPORTDiscus, Web of Science, and Humanities International Complete. Thirteen meta-analyses, each of which examined the effects of formative assessment on learning in K-12 students, were included in this umbrella review. The review considered evidence for the potential effectiveness of using formative assessment in class with primary and secondary school students. Formative assessment was found to produce trivial to large positive effects on student learning, with no negative effects identified. The magnitude of effects varied according to the type of formative assessment. The 13 included meta-analysis studies showed moderate (n = 10), high (n = 1), and low (n = 2) methodological quality (AMSTAR-2), although the robustness of the evidence (i.e., GRADE analysis) was very low (n = 9), low (n = 3), and moderate (n = 1). These findings offer valuable insights for designing and implementing different types of formative assessment aimed at optimizing student learning and ensuring the sustainability of assessment practices. However, the low-to-very-low certainty of the available evidence precludes robust recommendations regarding optimal formative assessment strategies for learning in K-12 students.
Journal Article
Evaluating a Novel Instructional Sequence for Conceptual Change in Physics Using Interactive Simulations
This study investigated the effectiveness of a novel inquiry-based instructional sequence using interactive simulations for supporting students’ development of conceptual understanding, inquiry process skills and confidence in learning. The study, conducted in Beijing, involved two teachers and 117 students in four classes. The teachers participated in professional learning and were supported in enacting one of two different instructional approaches the Interactive Simulations Instructional Approach (ISIA) (experimental group) or conventional instruction (control group). Each student group completed pre-tests and post-tests, and classroom observations were conducted to ensure that the implementation of the intervention was consistent. Our findings reveal that students in the ISIA group demonstrated significantly greater gains in conceptual understanding, inquiry process skills and confidence in learning than their peers in the conventional instruction group. Neither students’ sex nor their levels of academic achievement showed main effects on students’ achievement in any of the three outcome types (understanding, skill, confidence). This study demonstrates that the combination of interactive simulations and inquiry-based learning can enhance the development of students’ conceptual understanding, inquiry process skills and confidence in learning.
Journal Article
While Heisenberg is not looking : the strength of 'weak measurements' in educational research
The concept of 'weak measurements' in quantum physics is a way of 'cheating' the Uncertainty Principle. Heisenberg stated (and 85 years of experiments have demonstrated) that it is impossible to know both the position and momentum of a particle with arbitrary precision. More precise measurements of one decrease the precision with which the other can be measured. By 'sneaking a peak' at one variable however-conducting a 'weak measurement' that does not fully collapse the quantum wavefunction-and combining this with a subsequent strong measurement of the other variable, increased information of better quality can be gathered. By analogy, theories and methodological approaches could conceivably be combined in research in such a way that one does not 'force [the other] into blindness' (Bauersfeld 1988). This paper offers a theoretical and metaphorical introduction to an approach. The criteria for judging its value are empirical: does it work? Does it allow research work to be done and conceptualised in ways that are valuable? That evidence will be forthcoming as this approach is adopted and tested. [Author abstract]
Journal Article
Connected Science
Informed by the scholarship of teaching and learning (SOTL), Connected Science presents a new approach to college science education for the 21st century. This interdisciplinary approach stresses integrative learning and pedagogies that engage students through open-ended inquiry, compelling real-world questions, and data-rich experiences. Faculty from a variety of disciplines and institutions present case studies based on research in the classroom, offering insights into student learning goals and best practices in curriculum design. Synthetic chapters bring together themes from the case studies, present an overview of the connected science approach, and identify strategies and future challenges to help move this work forward.
eBook
Exploring the perspectives of engineering undergraduates on employability and employability building activities
PurposeThis study was conducted to gain a better understanding of engineering students' perceptions of the meaning of employability and the activities that contribute to employability development.Design/methodology/approachA survey was used to take a cross-section of student perspectives at key stages in the degree, and was followed by a series of focus groups to further explore student opinions on employability. Responses to selected open-ended questions and relevant sections of focus group transcripts were analysed using a thematic analysis approach.FindingsIt was found that students have different perspectives on the meaning of employability, with the majority describing employability as having the right skills, attributes or competencies. Employability development activities were integrated into three broad categories: developing engineering knowledge, skills and industry experience; career building and industry awareness; and degree progression and completion. Participants also identified barriers to employability development and suggested areas for improvement.Practical implicationsThe study recommends university staff ensure there is a shared understanding of employability within the student cohort by explicitly reframing employability as being about becoming a professional and that students are repeatedly exposed to the relevant set of industry competencies or standards. The study also outlines a range of activities that students connect to their employability development.Originality/valueThe findings of this study will assist university staff across the sector to make decisions about how they can best support employability development in their undergraduate students.
Journal Article
Lessons from Alison: a narrative study of differentiation in classroom teaching
Teaching is challenging in part because, although school structures are to some extent modelled on industrial approaches in which the 'raw materials' are assumed to be very similar, human beings are endlessly diverse. Understanding the many differences amongst students, and treating these differences as teaching resources rather than deficits, is a powerful approach. This paper draws on teacher interviews and classroom observations collected during a two-year study of two regional Queensland schools to explore issues of 'recognition', 'distribution' and social justice. It uses narrative vignettes from a single classroom to provide an occasion for reflection on the part of the reader on how schooling can better meet the needs of students, and outlines six pedagogical practices for effective classroom teaching.
Journal Article
Scientific visualisations: For developing students' understanding of concepts in chemistry: Some findings and some lessons learned
Scientific visualisations such as computer-based animations and simulations are increasingly a feature of high school Science instruction. Visualisations are adopted enthusiastically by teachers and embraced by students, and there is good evidence that they are popular and well received. There is limited evidence, however, of how effective they are in enabling students to learn key scientific concepts. This paper reports the results of a quantitative study conducted in Australian Chemistry classrooms. The visualisations chosen were from free online sources, intended to model the ways in which classroom teachers use visualisations, but were found to have serious flaws for conceptual learning. There were also challenges in the degree of interactivity available to students using the visualisations. Within these limitations, no significant difference was found for teaching with and without these visualisations. Further study using better-designed visualisations and with explicit attention to the pedagogy surrounding the visualisations will be required to gather high quality evidence of the effectiveness of visualisations for conceptual development.
Journal Article
Scientific visualisations for developing students' understanding of concepts in Chemistry
Scientific visualisations such as computer-based animations and simulations are increasingly a feature of high school Science instruction. Visualisations are adopted enthusiastically by teachers and embraced by students, and there is good evidence that they are popular and well received. There is limited evidence, however, of how effective they are in enabling students to learn key scientific concepts. This paper reports the results of a quantitative study conducted in Australian Chemistry classrooms. Eleven Chemistry classes participated, at both public and private schools in Brisbane, Queensland. The visualisations chosen were from free online sources, intended to model the ways in which classroom teachers use visualisations, but were found to have serious flaws for conceptual learning. There were also challenges in the degree of interactivity available to students using the visualisations. Within these limitations, no significant difference was found for teaching with and without these visualisations. Further study using better-designed visualisations and with explicit attention to the pedagogy surrounding the visualisations will be required to gather high quality evidence of the effectiveness of visualisations for conceptual development. [Author abstract, ed]
Journal Article