Chemistry Education Research and Practice最新文献

{"title":"Modeling students’ epistemic cognition in undergraduate chemistry courses: a review†","authors":"Kimberly S. DeGlopper and Ryan L. Stowe","doi":"10.1039/D3RP00348E","DOIUrl":"https://doi.org/10.1039/D3RP00348E","url":null,"abstract":"<p >Thinking about knowledge and knowing (<em>i.e.</em>, epistemic cognition) is an important part of student learning and has implications for how they apply their knowledge in future courses, careers, and other aspects of their lives. Three classes of models have emerged from research on epistemic cognition: developmental models, dimensional models, and resources models. These models can be distinguished by how value is assigned to particular epistemic ideas (hierarchy), how consistent epistemic ideas are across time and/or context (stability), and the degree to which people are consciously aware of their own epistemic ideas (explicitness). To determine the extent to which these models inform research on epistemic cognition in chemistry education specifically, we reviewed 54 articles on undergraduate chemistry students’ epistemologies. First, we sought to describe the articles in terms of the courses and unit of study sampled, the methods and study designs implemented, and the means of data collection utilized. We found that most studies focused on the epistemic cognition of individual students enrolled in introductory chemistry courses. The majority were qualitative and employed exploratory or quasi-experimental designs, but a variety of data collection methods were represented. We then coded each article for how it treated epistemic cognition in terms of hierarchy, stability, and explicitness. The overwhelming majority of articles performed a hierarchical analysis of students’ epistemic ideas. An equal number of articles treated epistemic cognition as stable <em>versus</em> unstable across time and/or context. Likewise, about half of the studies asked students directly about their epistemic cognition while approximately half of the studies inferred it from students’ responses, course observations, or written artifacts. These codes were then used to infer the models of epistemic cognition underlying these studies. Eighteen studies were mostly consistent with a developmental or dimensional model, ten were mostly aligned with a resources model, and twenty-six did not provide enough information to reasonably infer a model. We advocate for considering how models of epistemic cognition—and their assumptions about hierarchy, stability, and explicitness—influence the design of studies on students’ epistemic cognition and the conclusions that can be reasonably drawn from them.</p>","PeriodicalId":69,"journal":{"name":"Chemistry Education Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141453534","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}

{"title":"Reply to the ‘Comment on “What resources do high school students activate to link energetic and structural changes in chemical reactions? – A qualitative study”’ by K. S. Taber, Chem. Educ. Res. Pract., 2024, 25, https://doi.org/10.1039/D3RP00232B","authors":"Benjamin Pölloth, Dominik Diekemper, Chiara Bosch and Stefan Schwarzer","doi":"10.1039/D4RP00031E","DOIUrl":"https://doi.org/10.1039/D4RP00031E","url":null,"abstract":"<p >Our article “What resources do high school students activate to link energetic and structural changes in chemical reactions? – A qualitative study” was recently commented on by Keith Taber. In his comment he focuses on the dominant role of the octet rule in students' reasoning and suggests that students rely on an octet framework. In the first part of this response, Taber's argument about the pervasive inappropriate use of the octet rule is supported by empirical evidence. Re-analysis of the data confirms that students often seem to assume initial atomicity, use anthropomorphic language, and closely associate the octet rule with stability. These points make the octet rule a convenient answer for students to fill the “explanatory vacuum” often left in chemistry education, <em>e.g.</em> for explaining the driving force of reactions. In the second part, we discuss how these observations might be rationalized. Rather than a static misconception perspective, we suggest that student's application of the octet rule can be viewed from a dynamic, resource-oriented view of learning. Three examples are introduced to illustrate the variety in students’ applications of the octet rule. For a better understanding, more detailed research on how students really think and learn about the octet rule and energetics is necessary.</p>","PeriodicalId":69,"journal":{"name":"Chemistry Education Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141453500","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}

{"title":"Attention is currency: how surface features of Lewis structures influence organic chemistry student reasoning about stability","authors":"Fridah Rotich, Lyniesha Ward, Carly Beck, Maia Popova","doi":"10.1039/d4rp00030g","DOIUrl":"https://doi.org/10.1039/d4rp00030g","url":null,"abstract":"Despite representations’ central role in conveying chemical phenomena, mastering them is not trivial, given the wide variety of different conventions to interpret and use them. Furthermore, instructional approaches and materials may overlook explicit discussion on how students should reason with representations. To gather evidence that could guide improvements in teaching strategies and the creation of more effective instructional materials, we explored how students use Lewis structures to make inferences about stability. Through interviews with twenty-eight organic chemistry students, we have captured a range of resources that they employed, including the features of Lewis structures they paid attention to, the conceptual resources they activated, and the sophistication of their explanations. We found that students referenced all the explicit features of the provided Lewis structures but primarily attributed stability to the unique eye-catching features of each representation. Importantly, the surface features to which students attended impacted the conceptual resources they activated and their reasoning. Specifically, some students misapplied chemical principles to make justifications that fit their correct or incorrect claims about stability. Moreover, students primarily relied on lower-level reasoning and heuristics when constructing explanations. These findings underscore the importance of probing student reasoning so that instruction and assessments can be tailored to enhance students' ability to effectively use representations to reason about chemical phenomena. By understanding the reasoning patterns students adopt, educators can develop targeted strategies that promote deeper understanding and productive use of chemical representations.","PeriodicalId":69,"journal":{"name":"Chemistry Education Research and Practice","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252586","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}

{"title":"Reconstructing perspectives: investigating how molecular geometry cards (MGCards) and molecular model building (MMB) disrupt students' alternative notions of molecular structure – a qualitative study","authors":"Erlina, Dylan P. Williams, Chris Cane, Hairida, Maria Ulfah, Azwa F. Wafiq","doi":"10.1039/d3rp00038a","DOIUrl":"https://doi.org/10.1039/d3rp00038a","url":null,"abstract":"The range of abstract concepts encountered when learning chemistry and the inability of students to make connections between the macroscopic, sub-microscopic, and symbolic representations, used in chemistry teaching, are believed to be the main reasons for students’ difficulty when learning chemistry. Prediction and determination of molecular geometry using the theory of valence shell electron pair repulsion (VSEPR) is a sample of the abstract concept that is hard to understand by students who learn chemistry. Students may comprehend these ideas better if the learning process is supplemented with cutting-edge, interactive learning aids. To address the conceptual difficulties that students encounter when learning how to predict the shapes of molecules, a card game (MGCards) has been developed which is supported by simple molecular model building (MMB). The card game allows students to work through the steps required to predict the shape of a molecule in an engaging format. The student learning process is supported by feedback at all stages (if students make a mistake, they receive hints that will help them in the next step of the game). Action research with qualitative methods has been used to design, develop, and evaluate the MGCards. The MGCards and MMB were piloted at the University of Leicester with year one Natural Sciences students and modified based on the feedback received. Both MGCards and MMB were then used as part of the first-year chemistry education programme at Tanjungpura University in Indonesia. The findings of students’ answer analysis (pre- and post-test) in both cycles showed that students had a better understanding after learning with MGCards and MMB. The positive feedback for MGCards and MMB confirmed that these resources were effective in delivering an engaging learning experience. The results suggest that MGCards and MMB play a significant role in enhancing students’ understanding while also keeping them engaged.","PeriodicalId":69,"journal":{"name":"Chemistry Education Research and Practice","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141189633","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}

{"title":"Comparing drawing tasks and elaborate single-choice questions simulation-based learning: How do they facilitate students’ conceptual understanding on chemical equilibria?","authors":"Yannik Peperkorn, Jana-Kim Buschmann, Stefanie Schwedler","doi":"10.1039/d3rp00113j","DOIUrl":"https://doi.org/10.1039/d3rp00113j","url":null,"abstract":"Past research repeatedly revealed students’ struggles to understand chemical equilibria, especially concerning their dynamic nature. Black-box simulations have proven to be helpful here. However, the effect is strongly dependent on the quality of teaching, the design principles of which are not yet fully known. One aspect of debate concerns the nature of supportive learning tasks, which require students to activate, construct and reflect on their mental models to foster conceptual understanding. In this paper, we investigate how drawing-assisted simulation-based learning promotes conceptual understanding of chemical equilibria in comparison to single-choice tasks. Both types of supporting tasks involve simulation-based activities according to the German instructional design SIMMS (<strong>S</strong>imulation-based <strong>I</strong>nstruction for <strong>M</strong>ental <strong>M</strong>odelling in <strong>S</strong>chool), which requires students to construct their own explanations and predictions on a chemical system before exploring it via molecular dynamics simulations and revising their explanations and predictions retrospectively. In a quasi-experimental intervention study with 174 German high school students of ten chemistry courses (tenth grade), two treatment groups (drawing group and single-choice group) were compared with a control group, assessing the progress in conceptual understanding during simulation-based learning via drawings and explanations as well as pre- and post-intervention via questionnaire. Our findings reveal similar effects of drawing tasks and elaborate single-choice tasks on conceptual understanding of chemical equilibria. For equilibrium dynamics specifically, simulation-based settings featuring drawing tasks seem to be slightly more effective than simulation-based settings featuring elaborate single-choice-tasks in fostering understanding. What is more, simulation-based settings on the divergent phenomenon of Le Chatelier (where different final states emerge from the same initial state, depending on the nature of external perturbation) seem to be more efficient than those on the convergent nature of chemical equilibria (where several initial states with different educt/product ratios yield the same final state in equilibrium) in fostering student understanding irrespective of the mode of the supportive learning task.","PeriodicalId":69,"journal":{"name":"Chemistry Education Research and Practice","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141151604","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}

{"title":"The impact of co-design-based formative assessment practices on preservice science teachers’ understanding of chemical concepts in a general chemistry laboratory course","authors":"Osman Nafiz Kaya, Zehra Kaya","doi":"10.1039/d3rp00225j","DOIUrl":"https://doi.org/10.1039/d3rp00225j","url":null,"abstract":"Recently, scholars have suggested a co-design collaboration with instructors and students to effectively implement formative assessment (FA) practices because it ensures a high-quality design that considers users’ needs, values, and goals in a specific learning context. This study examines the effect of co-designed FA practices, in which preservice science teachers (PSTs) are co-designers of FA practices, on promoting their conceptual understanding of chemistry topics in a first-year undergraduate chemistry laboratory course. Sixteen randomly selected PSTs participated in the study for two consecutive semesters. At the end of the first semester, a co-design of the FA practices was developed collaboratively with the PSTs upon the approach of conjecture mapping. Then, the second semester was devoted to examining the impact of the co-design-based FA environment on overcoming the PSTs’ alternative conceptions regarding selected four chemistry laboratory topics: thermochemistry, chemical kinetics, chemical equilibrium, acids and bases. This study employed a conversion mixed research design. To evaluate the co-design-based FA practices, PSTs’ alternative conceptions were identified through pre- and post-laboratory concept maps. The results obtained from both qualitative and quantitative data analyses showed that implementing the co-designed FA practices had a significant impact on overcoming most of the alternative conceptions held by the PSTs in all topics of laboratory investigations. This study strongly implies the inclusion of undergraduate students as active co-participants of the iterative reasoning process of the FA design to promote their understanding of chemical concepts in laboratory courses.","PeriodicalId":69,"journal":{"name":"Chemistry Education Research and Practice","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141060010","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}

{"title":"Optimizing testing feedback in introductory chemistry: a multi-treatment study exploring varying levels of assessment feedback and subsequent performance","authors":"Kristen Murphy, David Glenn Schreurs, Melonie Teichert, Cynthia J. Luxford, Jaclyn Trate, Jordan T. Harshman, Jamie L Schneider","doi":"10.1039/d4rp00077c","DOIUrl":"https://doi.org/10.1039/d4rp00077c","url":null,"abstract":"Providing students with feedback on their performance is a critical part of enhancing student learning in chemistry and is often integrated into homework assignments, quizzes, and exams. However, not all feedback is created equal, and the type of feedback the student receives can dramatically alter the utility of the feedback to reinforce correct processes and assist in correcting incorrect processes. This work seeks to establish a ranking of how eleven different types of testing feedback affected student retention or growth in performance on multiple-choice general chemistry questions. These feedback methods ranged from simple noncorrective feedback to more complex and engaging elaborative feedback. A test-retest model was used with a one-week gap between the initial test and following test in general chemistry I. Data collection took place at multiple institutions over multiple years. Data analysis used four distinct grading schemes to estimate student performance. These grading schemes included dichotomous scoring, two polytomous scoring techniques, and the use of item response theory to estimate students’ true score. Data were modeled using hierarchical linear modeling which was set up to control for any differences in initial abilities and to determine the growth in performance associated with each treatment. Results indicated that when delayed elaborative feedback was paired with students being asked to recall/rework the problem, the largest student growth was observed. To dive deeper into student growth, both the differences in specific content-area improvement and the ability levels of students who improved the most were analyzed.","PeriodicalId":69,"journal":{"name":"Chemistry Education Research and Practice","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140939200","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}

{"title":"The relationship between self-handicapping in chemistry and chemistry academic engagement: a moderated mediation model investigation","authors":"Qian Huangfu, Weilin Huang, Qianmei He, Sisi Luo and Qimei Chen","doi":"10.1039/D3RP00332A","DOIUrl":"10.1039/D3RP00332A","url":null,"abstract":"<p >Chemistry academic engagement has received considerable attention for its role in enhancing students’ learning and overall development. As a significant factor influencing students’ chemistry improvement, research on chemistry academic engagement has emerged as a focal point. However, the methods to improve students’ chemistry academic engagement remain limited until now. Therefore, this study aims to investigate the mechanisms of chemistry academic engagement, self-handicapping, chemistry academic buoyancy and teacher support, and offer suggestions to improve students’ academic engagement. We assumed a moderated mediation model and evaluated all variables for twelve different schools in China (<em>N</em> = 3344, Grade 10), then analyzed the data with structural equation models (SEM). The results suggested that (1) self-handicapping in chemistry negatively predicted chemistry academic engagement; (2) chemistry academic buoyancy moderated the relationship between chemistry academic engagement and self-handicapping to a certain extent, and this indirect effect was significant irrespective of teacher support levels; (3) instrumental support moderated the mediating process in the academic buoyancy to academic engagement pathway; (4) teacher emotional support moderated the direct and indirect pathways of the mediating process from self-handicapping in chemistry to chemistry academic engagement. Finally, we analyzed the results of this research, highlighted its educational significance, recognized the limitations and made recommendations for further research.</p>","PeriodicalId":69,"journal":{"name":"Chemistry Education Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140884760","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}

{"title":"Factors shaping the choice in chemistry: insights from undergraduate students within a societal context†","authors":"Shirly Avargil, Greta Sterimbaum and Hafeeza Dahley-Zoabi","doi":"10.1039/D4RP00058G","DOIUrl":"10.1039/D4RP00058G","url":null,"abstract":"<p >There is a decline in recent years in the number of students studying chemistry in higher education. Many studies have been conducted on elementary and high school students' choice with fewer focusing on the factors that influence undergraduate students to choose to major in chemistry. Research also indicates that belonging to a minority group influences the choice of pursuing science. Despite a higher percentage of Israeli Arab students studying chemistry in high school compared to Israeli Jewish students, the percentage of those who continue to study chemistry in higher education is small. They also lack sufficient representation in academia and industry. Analyzing the similarities and differences in the perceptions of Israeli Jewish and Arab students may shed light on the societal aspect and its role in shaping chemistry participation. This led us to ask the following questions concerning undergraduate chemistry students: (1) What are the factors that influence undergraduate chemistry students to choose a chemistry career? (2) What are the differences between Jewish and Arab undergraduate chemistry students in choosing chemistry career, if any? (3) How do the factors that influence chemistry career choice correlate, if at all? Guided by the social cognitive career theory (SCCT), we used quantitative and qualitative methods to identify and analyze factors and categories. These factors and categories were related to personal and environmental themes and influenced third-year chemistry undergraduate students to choose a chemistry career. 117 third-year undergraduate chemistry students took part in this research. The findings indicate that there are six major factors in choosing a career in chemistry by undergraduate students, which are divided into two themes, a personal theme, and an environmental theme. Our study shows that ‘self-efficacy – scientific/chemistry learning’ is secondary to students’ desire to complete an academic degree. The influence of their friends and family and extrinsic motivation related to rewards/status/prestige are more influential as well. When exploring differences between Israeli Jewish and Israeli Arab societies, our findings revealed variations in the factors influencing career choices. Our findings have practical implications for educational institutions aiming to foster a diverse and inclusive learning environment in chemistry education.</p>","PeriodicalId":69,"journal":{"name":"Chemistry Education Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140838338","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}

{"title":"Factors that influence general chemistry students’ decision making in study strategies","authors":"Pallavi Nayyar, Betül Demirdöğen and Scott E. Lewis","doi":"10.1039/D4RP00046C","DOIUrl":"10.1039/D4RP00046C","url":null,"abstract":"<p >This qualitative study delves into the intricate landscape of general chemistry students' study strategy decision-making processes, examining the guiding factors that shape their choices. Past work in chemistry education has shown that students’ study behaviors are dynamic in nature. Employing self-regulation theory, the study aims to provide a deeper understanding of how students decide to maintain or change their study behaviors. Semi-structured interviews were conducted to capture the study processes of nine students enrolled in first-semester general chemistry classroom. The results indicated these students’ study behavior decision-making process was either driven by metacognition or affect. Students who adopted metacognitive decision-making showed evidence of enactment of declarative, procedural, and conditional knowledge which could be influenced by either the nature of the content studied (content-driven), or the time-efficiency of the strategies employed (time-driven) during their self-regulation. On the contrary, students who adopted affective decision-making based their choices regarding their study behaviors on the emotional aspects and the value they attribute to the study strategies (intrinsic-value or instrumental-value driven). The findings of the study are foundational yet highlight the nuanced nature of changes and constancy within the study strategy decision-making process. This suggests a one-size-fits-all approach to improve student study behaviors may not yield fruitful outcomes and therefore, distinct methods should be devised to reach students with different decision-making processes.</p>","PeriodicalId":69,"journal":{"name":"Chemistry Education Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140805135","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}