Pub Date : 2024-08-06DOI: 10.1103/physrevphyseducres.20.020108
Peter Hu, Yangqiuting Li, Chandralekha Singh
Quantum information science and engineering (QISE) is a rapidly developing field that leverages the skills of experts from many disciplines to utilize the potential of quantum systems in a variety of applications. It requires talent from a wide variety of traditional fields, including physics, engineering, chemistry, and computer science, to name a few. To prepare students for such opportunities, it is important to give them a strong foundation in the basics of QISE, in which quantum computing plays a central role. In this study, we discuss the development, validation, and evaluation of a Quantum Interactive Learning Tutorial, on the basics and applications of quantum computing. These include an overview of key quantum mechanical concepts relevant to quantum computation (including ways a quantum computer is different from a classical computer), properties of single- and multiqubit systems, and the basics of single-qubit quantum gates. The tutorial uses guided inquiry-based teaching-learning sequences. Its development and validation involved conducting cognitive task analysis from both expert and student perspectives and using common student difficulties as a guide. For example, before engaging with the tutorial, after traditional lecture-based instruction, one reasoning primitive that was common in student responses is that a major difference between an -bit classical and -qubit quantum computer is that various things associated with a number for a classical computer should be replaced with the number for a quantum computer (e.g., qubits must be initialized and bits of information are obtained as the output of the computation on the quantum computer). This type of reasoning primitive also led many students to incorrectly think that there are only distinctly different states available when computation takes place on a classical computer. Research suggests that this type of reasoning primitive has its origins in students learning that quantum computers can provide exponential advantage for certain problems, e.g., Shor’s algorithm for factoring products of large prime numbers, and that the quantum state during the computation can be in a superposition of
量子信息科学与工程（QISE）是一个快速发展的领域，它利用许多学科专家的技能，在各种应用中发挥量子系统的潜力。它需要各种传统领域的人才，包括物理学、工程学、化学和计算机科学等等。为了让学生做好准备，迎接这样的机遇，必须为他们打下坚实的量子信息学基础，而量子计算在其中发挥着核心作用。在本研究中，我们讨论了量子互动学习教程的开发、验证和评估，内容涉及量子计算的基础知识和应用。其中包括与量子计算相关的关键量子力学概念概述（包括量子计算机与经典计算机的不同之处）、单量子比特和多量子比特系统的特性以及单量子比特量子门的基础知识。该教程采用引导探究式教学顺序。该教程的开发和验证包括从专家和学生的角度进行认知任务分析，并以学生常见的困难为指导。例如，在接触该教程之前，经过传统的讲授式教学后，学生回答中常见的一个推理原点是，N比特经典计算机与N比特量子计算机的主要区别在于，经典计算机中与数字N相关的各种事物应被量子计算机中的数字2N所取代（例如，必须初始化2N个量子比特，量子计算机上的计算输出为2N比特信息）。这类推理原型还让许多学生错误地认为，在经典计算机上进行计算时，只有 N 种截然不同的状态。研究表明，这类推理原型源于学生了解到量子计算机可以为某些问题提供指数级的优势，例如肖尔算法对大素数乘积的因式分解，以及计算过程中的量子态可以是 2N 个线性独立状态的叠加。教程中的探究式学习序列提供了脚手架支持，帮助学生形成功能性理解。经过验证的教程最终版本在物理系开设的两门不同课程中实施，这两门课程的学生人数和课程目标略有不同。在对必要的概念进行传统的讲授式教学后，对学生的理解能力进行了评估，并在使用教程后对学生的理解能力再次进行了评估。我们分析并讨论了他们在教程所涉及的概念方面的成绩提高情况。
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Pub Date : 2024-08-05DOI: 10.1103/physrevphyseducres.20.020106
Robert P. Dalka, Justyna P. Zwolak
Physics graduate studies are substantial efforts on the part of individual students, departments, and institutions of higher education. Understanding the factors that lead to student success and attrition is crucial for improving these programs. One factor that has recently started to be investigated is the broadly defined students’ experiences related to support structures. The Aspects of Student Experience Scale (ASES), a Likert-style survey, was developed by researchers to do just that. In this study, we leverage the network approach for Likert-style surveys (NALS) methodology to provide a unique interpretation of responses to the ASES instrument for well-defined demographic groups. We confirm the validity of our findings by studying the stability of the NALS themes and investigating how they are expressed within demographic-based networks. We find that for all four themes in the original ASES study, certain thematic trends capturing students’ experiences vary across the demographic-based networks in meaningful ways. We also reveal that for some demographic groups, there is an interesting interplay between, and mixing of, the original themes. Finally, our study showcases how NALS can be applied to other Likert-style datasets.
{"title":"Network analysis of graduate program support structures through experiences of various demographic groups","authors":"Robert P. Dalka, Justyna P. Zwolak","doi":"10.1103/physrevphyseducres.20.020106","DOIUrl":"https://doi.org/10.1103/physrevphyseducres.20.020106","url":null,"abstract":"Physics graduate studies are substantial efforts on the part of individual students, departments, and institutions of higher education. Understanding the factors that lead to student success and attrition is crucial for improving these programs. One factor that has recently started to be investigated is the broadly defined students’ experiences related to support structures. The Aspects of Student Experience Scale (ASES), a Likert-style survey, was developed by researchers to do just that. In this study, we leverage the network approach for Likert-style surveys (NALS) methodology to provide a unique interpretation of responses to the ASES instrument for well-defined demographic groups. We confirm the validity of our findings by studying the stability of the NALS themes and investigating how they are expressed within demographic-based networks. We find that for all four themes in the original ASES study, certain thematic trends capturing students’ experiences vary across the demographic-based networks in meaningful ways. We also reveal that for some demographic groups, there is an interesting interplay between, and mixing of, the original themes. Finally, our study showcases how NALS can be applied to other Likert-style datasets.","PeriodicalId":54296,"journal":{"name":"Physical Review Physics Education Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141933518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-31DOI: 10.1103/physrevphyseducres.20.020105
Gayle Geschwind, Michael Vignal, Marcos D. Caballero, H. J. Lewandowski
Concepts and practices surrounding measurement uncertainty are vital knowledge for physicists and are often emphasized in undergraduate physics laboratory courses. We have previously developed a research-based assessment instrument—the Survey of Physics Reasoning on Uncertainty Concepts in Experiments (SPRUCE)—to examine student proficiency with measurement uncertainty along a variety of axes, including sources of uncertainty, handling of uncertainty, and distributions and repeated measurements. We present here initial results from the assessment representing over 1500 students from 20 institutions. We analyze students’ performance pre- and postinstruction in lab courses and examine how instruction impacts students with different majors and gender. We find that students typically excel in certain areas, such as reporting the mean of a distribution as their result, while they struggle in other areas, such as comparing measurements with uncertainty and correctly propagating errors using formulas. Additionally, we find that the importance that an instructor places in certain areas of measurement uncertainty is uncorrelated with student performance in those areas.
{"title":"Using a research-based assessment instrument to explore undergraduate students’ proficiencies around measurement uncertainty in physics lab contexts","authors":"Gayle Geschwind, Michael Vignal, Marcos D. Caballero, H. J. Lewandowski","doi":"10.1103/physrevphyseducres.20.020105","DOIUrl":"https://doi.org/10.1103/physrevphyseducres.20.020105","url":null,"abstract":"Concepts and practices surrounding measurement uncertainty are vital knowledge for physicists and are often emphasized in undergraduate physics laboratory courses. We have previously developed a research-based assessment instrument—the Survey of Physics Reasoning on Uncertainty Concepts in Experiments (SPRUCE)—to examine student proficiency with measurement uncertainty along a variety of axes, including sources of uncertainty, handling of uncertainty, and distributions and repeated measurements. We present here initial results from the assessment representing over 1500 students from 20 institutions. We analyze students’ performance pre- and postinstruction in lab courses and examine how instruction impacts students with different majors and gender. We find that students typically excel in certain areas, such as reporting the mean of a distribution as their result, while they struggle in other areas, such as comparing measurements with uncertainty and correctly propagating errors using formulas. Additionally, we find that the importance that an instructor places in certain areas of measurement uncertainty is uncorrelated with student performance in those areas.","PeriodicalId":54296,"journal":{"name":"Physical Review Physics Education Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-29DOI: 10.1103/physrevphyseducres.20.020104
Florian Budimaier, Martin Hopf
Although there has been extensive research on students’ understanding of the particulate nature of matter (PNM), there is still a lack of research on contexts that can be used to teach this challenging topic. In a previous design-based research study, the authors developed a teaching-learning sequence (TLS) on the PNM in the context of crystal structures based on 40 student interviews using the method of probing acceptance. Data suggested that salt and snow crystals form an effective context for learning the concept of emergence and therefore gaining a better understanding of the PNM. To test whether the TLS also promotes students’ use of the PNM in a realistic classroom setting, a proof of principle study was conducted. In six eighth-grade classes in Vienna, students’ use of the PNM was assessed with a pretest before they were taught the TLS during four lessons. After the intervention, students were given a post-test. Open-ended questions were coded using evaluative qualitative content analysis so that quantitative analysis could be applied. T-tests comparing the means of students’ scores on both tests show significant improvements in students’ use of the PNM in the post-test. The context of crystal structures seems to be helpful to students, as most of them use the PNM when asked about crystal formation. In addition, in the post-test, students more often accepted the idea of empty space between particles and associated particle motion with temperature. However, when asked about phase changes, most students remained in a continuous conception of matter.
{"title":"Evaluation of a new teaching-learning sequence on the particulate nature of matter using crystal structures","authors":"Florian Budimaier, Martin Hopf","doi":"10.1103/physrevphyseducres.20.020104","DOIUrl":"https://doi.org/10.1103/physrevphyseducres.20.020104","url":null,"abstract":"Although there has been extensive research on students’ understanding of the particulate nature of matter (PNM), there is still a lack of research on contexts that can be used to teach this challenging topic. In a previous design-based research study, the authors developed a teaching-learning sequence (TLS) on the PNM in the context of crystal structures based on 40 student interviews using the method of probing acceptance. Data suggested that salt and snow crystals form an effective context for learning the concept of emergence and therefore gaining a better understanding of the PNM. To test whether the TLS also promotes students’ use of the PNM in a realistic classroom setting, a proof of principle study was conducted. In six eighth-grade classes in Vienna, students’ use of the PNM was assessed with a pretest before they were taught the TLS during four lessons. After the intervention, students were given a post-test. Open-ended questions were coded using evaluative qualitative content analysis so that quantitative analysis could be applied. T-tests comparing the means of students’ scores on both tests show significant improvements in students’ use of the PNM in the post-test. The context of crystal structures seems to be helpful to students, as most of them use the PNM when asked about crystal formation. In addition, in the post-test, students more often accepted the idea of empty space between particles and associated particle motion with temperature. However, when asked about phase changes, most students remained in a continuous conception of matter.","PeriodicalId":54296,"journal":{"name":"Physical Review Physics Education Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-29DOI: 10.1103/physrevphyseducres.20.020103
Barron J. Montgomery, Argenta M. Price, Carl E. Wieman
A major goal of physics education is to develop strong problem-solving skills for students. To become expert problem solvers, students must have opportunities to deliberately practice those skills. In this work, we adopt a previously described definition of problem solving that consists of a set of 29 decisions made by expert scientists. We quantified the amount of practice undergraduate physics students get at making each decision by coding the decisions required in assignments from introductory, intermediate, and advanced physics courses at a prestigious university. A research-focused capstone course was the only example that offered substantial practice at a large range of decisions. Problems assigned in the traditional coursework required only a few decisions and routinely reduced potential opportunities for students to make other decisions. In addition, we modified traditional physics coursework to offer more decision-making practice. We observed that this increased the number of decisions students actually made in solving the problems. This work suggests that to better prepare undergraduates for solving problems in the real world, we must offer more opportunities for students to make and act on problem-solving decisions.
{"title":"Characterizing decision-making opportunities in undergraduate physics coursework","authors":"Barron J. Montgomery, Argenta M. Price, Carl E. Wieman","doi":"10.1103/physrevphyseducres.20.020103","DOIUrl":"https://doi.org/10.1103/physrevphyseducres.20.020103","url":null,"abstract":"A major goal of physics education is to develop strong problem-solving skills for students. To become expert problem solvers, students must have opportunities to deliberately practice those skills. In this work, we adopt a previously described definition of problem solving that consists of a set of 29 decisions made by expert scientists. We quantified the amount of practice undergraduate physics students get at making each decision by coding the decisions required in assignments from introductory, intermediate, and advanced physics courses at a prestigious university. A research-focused capstone course was the only example that offered substantial practice at a large range of decisions. Problems assigned in the traditional coursework required only a few decisions and routinely reduced potential opportunities for students to make other decisions. In addition, we modified traditional physics coursework to offer more decision-making practice. We observed that this increased the number of decisions students actually made in solving the problems. This work suggests that to better prepare undergraduates for solving problems in the real world, we must offer more opportunities for students to make and act on problem-solving decisions.","PeriodicalId":54296,"journal":{"name":"Physical Review Physics Education Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-15DOI: 10.1103/physrevphyseducres.20.020102
William D. Riihiluoma, Zeynep Topdemir, John R. Thompson
One expected outcome of physics instruction is for students to be capable of relating physical concepts to multiple mathematical representations. In quantum mechanics (QM), students are asked to work across multiple symbolic notations, including some they have not previously encountered. To investigate student understanding of the relationships between expressions used in these various notations, a survey was developed and distributed to students at six different institutions. All of the courses studied were structured as “spins-first,” in which the course begins with spin-1/2 systems and Dirac notation before transitioning to include continuous systems and wave function notation. Network analysis techniques such as community detection methods were used to investigate conceptual connections between commonly used expressions in upper-division QM courses. Our findings suggest that, for spins-first students, Dirac bras and kets share a stronger identity with vectorlike concepts than are associated with quantum state or wave function concepts. This work represents a novel way of using well-developed network analysis techniques and suggests such techniques could be used for other purposes as well. Published by the American Physical Society 2024
{"title":"Network analysis of students’ conceptual understanding of mathematical expressions for probability in upper-division quantum mechanics","authors":"William D. Riihiluoma, Zeynep Topdemir, John R. Thompson","doi":"10.1103/physrevphyseducres.20.020102","DOIUrl":"https://doi.org/10.1103/physrevphyseducres.20.020102","url":null,"abstract":"One expected outcome of physics instruction is for students to be capable of relating physical concepts to multiple mathematical representations. In quantum mechanics (QM), students are asked to work across multiple symbolic notations, including some they have not previously encountered. To investigate student understanding of the relationships between expressions used in these various notations, a survey was developed and distributed to students at six different institutions. All of the courses studied were structured as “spins-first,” in which the course begins with spin-1/2 systems and Dirac notation before transitioning to include continuous systems and wave function notation. Network analysis techniques such as community detection methods were used to investigate conceptual connections between commonly used expressions in upper-division QM courses. Our findings suggest that, for spins-first students, Dirac bras and kets share a stronger identity with vectorlike concepts than are associated with quantum state or wave function concepts. This work represents a novel way of using well-developed network analysis techniques and suggests such techniques could be used for other purposes as well.\u0000 \u0000 \u0000 \u0000 \u0000 Published by the American Physical Society\u0000 2024\u0000 \u0000 \u0000","PeriodicalId":54296,"journal":{"name":"Physical Review Physics Education Research","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141647602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-12DOI: 10.1103/physrevphyseducres.20.020101
Lehtinen Antti, Lehesvuori Sami, Maunuksela Jussi, Hämäläinen Raija, Koskinen Pekka
Teaching assistants have a very important role in physics education as they interact with students and guide them in different contexts. A multitude of research has focused on how to prepare teaching assistants to implement high-quality, research-based teaching techniques. Video clubs, i.e., working with a group of teachers to watch and discuss excerpts of videos recorded from their own teaching, is a novel approach to teaching assistant training that draws from teacher education. This study reports on the experiences of five physics teaching assistants as they participated in a semester long series of video clubs as a part of the implementation of a new introductory lab course. Data were collected through interviews (). The interview data were analyzed through reflexive thematic analysis. Five themes for the experiences were constructed from the data. Participation in the video clubs enabled the teaching assistants to uptake teaching practices from each other and spurred a wish for more coplanning of teaching. There was tension in the experiences as some teaching assistants appreciated the positive feedback but others would have preferred more constructive feedback. As the teaching assistants’ experiences were positive, the use of video clubs in teaching assistant training warrants more research. This research could focus on, e.g., the type of feedback the teaching assistants receive in the video clubs.
{"title":"Video clubs in physics teaching assistant training: Teaching assistants’ experiences","authors":"Lehtinen Antti, Lehesvuori Sami, Maunuksela Jussi, Hämäläinen Raija, Koskinen Pekka","doi":"10.1103/physrevphyseducres.20.020101","DOIUrl":"https://doi.org/10.1103/physrevphyseducres.20.020101","url":null,"abstract":"Teaching assistants have a very important role in physics education as they interact with students and guide them in different contexts. A multitude of research has focused on how to prepare teaching assistants to implement high-quality, research-based teaching techniques. Video clubs, i.e., working with a group of teachers to watch and discuss excerpts of videos recorded from their own teaching, is a novel approach to teaching assistant training that draws from teacher education. This study reports on the experiences of five physics teaching assistants as they participated in a semester long series of video clubs as a part of the implementation of a new introductory lab course. Data were collected through interviews (<math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><mi>N</mi><mo>=</mo><mn>5</mn></mrow></math>). The interview data were analyzed through reflexive thematic analysis. Five themes for the experiences were constructed from the data. Participation in the video clubs enabled the teaching assistants to uptake teaching practices from each other and spurred a wish for more coplanning of teaching. There was tension in the experiences as some teaching assistants appreciated the positive feedback but others would have preferred more constructive feedback. As the teaching assistants’ experiences were positive, the use of video clubs in teaching assistant training warrants more research. This research could focus on, e.g., the type of feedback the teaching assistants receive in the video clubs.","PeriodicalId":54296,"journal":{"name":"Physical Review Physics Education Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141610810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Being lectured by a woman physicist can benefit students’ performance, motivation, and engagement with physics. However, due to the severe underrepresentation of women physics faculty, these instances may be scarce. Through semistructured interviews with seven women physics lecturers, we used expectancy-value theory to understand the situative nature of gender regarding motivation to lecture. We sought to understand their choices and decisions when selecting their teaching roles, and if lecturing, what draws them toward certain courses. Our study was a staff-student partnership project carried out in a physics department at a UK university. We identified themes of confidence, enjoyment, the importance of lecturing, and the associated workload. The academic women could not relate to the “showperson” persona that they felt their men colleagues displayed. They navigated low levels of confidence by adopting a painstaking approach to lecture preparation, suggesting an inherent, higher workload associated with lecturing, compared with other forms of teaching. However, the women highly valued lecturing, enjoying the excitement and interactions with students, and were drawn toward developing students’ knowledge and skills. Being familiar with the content allowed them to feel confident in lecturing. We discuss these findings and recommend areas of support that physics departments should endeavor to offer.
{"title":"Using expectancy-value theory to understand the teaching motivations of women physics lecturers","authors":"Jessie Durk, Amy Smith, Bilgesu Aydın, Adèle Julia, Isabel M. Rabey","doi":"10.1103/physrevphyseducres.20.010157","DOIUrl":"https://doi.org/10.1103/physrevphyseducres.20.010157","url":null,"abstract":"Being lectured by a woman physicist can benefit students’ performance, motivation, and engagement with physics. However, due to the severe underrepresentation of women physics faculty, these instances may be scarce. Through semistructured interviews with seven women physics lecturers, we used expectancy-value theory to understand the situative nature of gender regarding motivation to lecture. We sought to understand their choices and decisions when selecting their teaching roles, and if lecturing, what draws them toward certain courses. Our study was a staff-student partnership project carried out in a physics department at a UK university. We identified themes of confidence, enjoyment, the importance of lecturing, and the associated workload. The academic women could not relate to the “showperson” persona that they felt their men colleagues displayed. They navigated low levels of confidence by adopting a painstaking approach to lecture preparation, suggesting an inherent, higher workload associated with lecturing, compared with other forms of teaching. However, the women highly valued lecturing, enjoying the excitement and interactions with students, and were drawn toward developing students’ knowledge and skills. Being familiar with the content allowed them to feel confident in lecturing. We discuss these findings and recommend areas of support that physics departments should endeavor to offer.","PeriodicalId":54296,"journal":{"name":"Physical Review Physics Education Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-24DOI: 10.1103/physrevphyseducres.20.010156
Maja Planinic, Katarina Jelicic, Karolina Matejak Cvenic, Ana Susac, Lana Ivanjek
Wave optics is a mandatory part of Croatian secondary school physics curriculum for students in the final year of secondary school (age 18–19). Many physics education research studies have shown that it is a difficult physics topic for both university and secondary school students. An inquiry-based teaching sequence on wave optics, designed for eight 45-min teaching periods, was developed by the authors. The sequence included four investigative students’ experiments on the topics of interference, diffraction, and polarization of light, as well as several teacher demonstrations. The experimental group included six classes of students from six different Croatian urban secondary schools, who underwent the teaching intervention with the new inquiry-based sequence on wave optics, whereas the control group consisted of six classes from the same schools, taught in a predominantly lecturing way. Both groups were post-tested with the same instrument, the Conceptual Survey on Wave Optics (CSWO), to evaluate the research hypothesis that the new sequence might improve students’ conceptual understanding better than the traditional teaching. The results of the experimental and control groups were analyzed and compared using the Rasch analysis. The results show that the experimental group outperformed the control group in four out of five conceptual areas probed by the CSWO, suggesting that the new inquiry-based teaching sequence may contribute to stronger development of secondary school students’ conceptual understanding of wave optics, especially concerning typical wave optics patterns, reasoning from experiments, and explaining basic wave optics phenomena. A questionnaire on attitudes toward the teaching intervention was administered to students and it was found that students generally liked the inquiry-based teaching intervention and expressed positive attitudes to interactive, experimental, and collaborative aspects of physics teaching. The results are very promising, but their generalization may be limited by the selection of the students, as well as by the short duration of the teaching intervention and the relatively small breadth of the covered topics.
{"title":"Effect of an inquiry-based teaching sequence on secondary school students’ understanding of wave optics","authors":"Maja Planinic, Katarina Jelicic, Karolina Matejak Cvenic, Ana Susac, Lana Ivanjek","doi":"10.1103/physrevphyseducres.20.010156","DOIUrl":"https://doi.org/10.1103/physrevphyseducres.20.010156","url":null,"abstract":"Wave optics is a mandatory part of Croatian secondary school physics curriculum for students in the final year of secondary school (age 18–19). Many physics education research studies have shown that it is a difficult physics topic for both university and secondary school students. An inquiry-based teaching sequence on wave optics, designed for eight 45-min teaching periods, was developed by the authors. The sequence included four investigative students’ experiments on the topics of interference, diffraction, and polarization of light, as well as several teacher demonstrations. The experimental group included six classes of students from six different Croatian urban secondary schools, who underwent the teaching intervention with the new inquiry-based sequence on wave optics, whereas the control group consisted of six classes from the same schools, taught in a predominantly lecturing way. Both groups were post-tested with the same instrument, the Conceptual Survey on Wave Optics (CSWO), to evaluate the research hypothesis that the new sequence might improve students’ conceptual understanding better than the traditional teaching. The results of the experimental and control groups were analyzed and compared using the Rasch analysis. The results show that the experimental group outperformed the control group in four out of five conceptual areas probed by the CSWO, suggesting that the new inquiry-based teaching sequence may contribute to stronger development of secondary school students’ conceptual understanding of wave optics, especially concerning typical wave optics patterns, reasoning from experiments, and explaining basic wave optics phenomena. A questionnaire on attitudes toward the teaching intervention was administered to students and it was found that students generally liked the inquiry-based teaching intervention and expressed positive attitudes to interactive, experimental, and collaborative aspects of physics teaching. The results are very promising, but their generalization may be limited by the selection of the students, as well as by the short duration of the teaching intervention and the relatively small breadth of the covered topics.","PeriodicalId":54296,"journal":{"name":"Physical Review Physics Education Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-24DOI: 10.1103/physrevphyseducres.20.010155
Axel-Thilo Prokop, Ronny Nawrodt
Although researchers have extensively studied student conceptions of radioactivity, the conceptions held by preservice teachers on this subject are largely absent from the literature. We conducted a qualitative content analysis of problem-centered interviews with preservice teachers () to establish which conceptions are held by preservice teachers and to examine these conceptions’ structure in coordination classes. As has already been observed in students, some preservice teachers inadequately differentiate between radioactive matter and ionizing radiation and between fission and decay. We also observed that preservice teachers tend to describe the activation of materials due to ionizing radiation despite having previously denied an activation, thus showing that the conception of activation of materials can reemerge in particular framings. Within the interviews conducted, the concept of energy emerged as a central coordination class regarding radioactivity. This coordination class appeared across contexts and proved fruitful in explaining preservice teachers’ conceptions about radioactivity. We will use the results from this study to develop a teaching-learning laboratory for preservice teachers in which they can actively study high school students’ conceptions while reflecting on their own. In this way, these findings will contribute to improving the structure of nuclear physics courses at the university.
{"title":"Energy as a source of preservice teachers’ conceptions about radioactivity","authors":"Axel-Thilo Prokop, Ronny Nawrodt","doi":"10.1103/physrevphyseducres.20.010155","DOIUrl":"https://doi.org/10.1103/physrevphyseducres.20.010155","url":null,"abstract":"Although researchers have extensively studied student conceptions of radioactivity, the conceptions held by preservice teachers on this subject are largely absent from the literature. We conducted a qualitative content analysis of problem-centered interviews with preservice teachers (<math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><mi>N</mi><mo>=</mo><mn>13</mn></mrow></math>) to establish which conceptions are held by preservice teachers and to examine these conceptions’ structure in coordination classes. As has already been observed in students, some preservice teachers inadequately differentiate between radioactive matter and ionizing radiation and between fission and decay. We also observed that preservice teachers tend to describe the activation of materials due to ionizing radiation despite having previously denied an activation, thus showing that the conception of activation of materials can reemerge in particular framings. Within the interviews conducted, the concept of energy emerged as a central coordination class regarding radioactivity. This coordination class appeared across contexts and proved fruitful in explaining preservice teachers’ conceptions about radioactivity. We will use the results from this study to develop a teaching-learning laboratory for preservice teachers in which they can actively study high school students’ conceptions while reflecting on their own. In this way, these findings will contribute to improving the structure of nuclear physics courses at the university.","PeriodicalId":54296,"journal":{"name":"Physical Review Physics Education Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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