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Learning the periodic table of elements can pose a challenge for students due to the complex organization and relationships between the different elements. Game-based interventions have been shown in past studies to be one of the feasible ways to overcome this challenge. In this research, a tabletop game, called "Little Periodic" was developed to improve students' chemical representation and conceptual understanding. Following the five phases of the ADDIE model - Analysis, Design, Development, Implementation, and Evaluation - the study first analyzed students' needs and identified key concepts for mastery. Additionally, an overview of the five phases is discussed in detail within this study, providing insight into the systematic process to develop and evaluate the tabletop game. Three teachers were interviewed to see the appropriate content that will be included in the tabletop game based on the "Dokumen Standard Kurikulum dan Pentaksiran (DSKP)." A tabletop game was designed and developed that could be used in physical learning environments. To evaluate the effectiveness of the developed tabletop game, validation forms and questionnaires were administered to three validator experts. The results indicated that the tabletop game was valid and effective, with high scores for content suitability, potential effectiveness, and overall satisfaction. The feedback received from chemistry teachers indicated a significant level of satisfaction with the tabletop game. The developed tabletop games can be employed in various learning situations, including in-person learning, and the effects of tabletop games need to further be investigated to ensure and enhance students to achieve deeper learning outcomes.

The purpose of this study was to examine the relationship among pre-service science teachers' global scientific literacy and various variables within the scope of the structural equation model. Since the relations among the variables were investigated in the structural model established for this study, correlational research methodology was applied. The application was carried out with 294 pre-service teachers studying in the departments of chemistry, physics, biology and elementary science education of a state university. The data of the study were obtained with the scales of global scientific literacy, the perception of science process skills, the inquiry skills, the self-directed learning readiness in laboratory, the attitude scale towards the laboratory and the personal information questionnaire. Within the framework of structural equation modeling, the causal and relational analyses of the data were examined. The results showed that the proposed model of the relationship among global scientific literacy and the variables predicting global scientific literacy was also found to be compatible with the data, and the entire model was confirmed except for the attitude towards the laboratory. In this context, it can be claimed that these variables play an essential role in pre-service teachers' being global scientifically literate.

This study aims to determine the feasibility of Instagram-based chemistry learning media and the results of increasing student interest in learning acid-base material in everyday life with a multi-representation approach. The method used in this study is the ADDIE research and development model (Analysis, Design, Development, Implementation, and Evaluation). The research population is SMAN 3 Sidoarjo students, with the sample used being 89 students who carry out learning using Instagram in acid-base material in everyday life. Quantitative data was obtained from material and media validation results, as well as an analysis of student interest in learning before and after using the media. Qualitative data were obtained by analyzing descriptive questions of student learning interest in chemistry questionnaires. The results of the research on developing Instagram-based chemistry learning media on acid-base materials in everyday life with a multi-representation approach were obtained: 1) the feasibility of learning media developed based on the results of the assessment of materials and media by expert validators was included in the very feasible category; 2) the increase in students' learning motivation is in the medium category with a standard gain value of 0.40.

Computer quiz games are introduced to improve teaching and learning in a freshman engineering chemistry course in an English-as-a-second-language (ESL) environment. These quiz games are developed and implemented as supplemental and augmentative tools to enhance traditionally delivered lectures. The paper shows an increase in students' motivation and compares the performance among students who participated in computer quiz games, a paper-based quiz, or neither activity. An assessment of the effectiveness of quiz games in learning is conducted via a proposed novel chemistry achievement test, the Freshman Engineering Chemistry Aptitude Test, and an attitude questionnaire. The findings contribute to our understanding of the role of game-based learning in students' achievement in chemistry and their motivation and attitudes toward learning general chemistry at a university within an ESL environment, while the computer games developed are useful in all English-based chemistry classes.

Most chemistry students struggle with interpreting and understanding NMR (nuclear magnetic resonance) spectra and the general concepts of NMR spectroscopy. NMR spectroscopy seems to be difficult to both teach and learn. Therefore, the corresponding courses should be investigated in more detail. We conducted a survey with N = 39 German university lecturers in NMR spectroscopy on their course content as well as on their estimations on the importance of certain topics for understanding NMR spectroscopy in detail and found the most recent problems, conceptions, and content structure. The participants were asked to rate a list of items (belonging to [superscript 1]H NMR spectroscopy) twice: First in terms of appearance in their lecture or course and second according to their personal relevance. Our results showed that, on the one hand, students learn about the physical and chemical backgrounds and theoretical basics for understanding [superscript 1]H NMR spectroscopy and, on the other hand, about essential knowledge for practical analyzing and interpreting [superscript 1]H NMR spectra. The most covered and most important topics are the practical ones related to spectra interpretation, e.g., chemical shift, spin-spin coupling, and further background knowledge for peak analysis. Therefore, most lecturers focus on teaching usage-oriented conceptual knowledge more than theoretical backgrounds, which means that analyzing spectra is paramount, especially for beginner students. Furthermore, this review visualizes an evidence-based ranking for the most covered and as most relevant estimated NMR spectroscopy lecture contents as well as students' greatest learning difficulties in Germany. Lecturers and students are now able to validate their lectures or course structure.

Owing to the critical role of stereochemistry in biotechnology, medicine, and industry, it must be well represented in undergraduate lab curricula. To achieve these stereochemical laboratory requirements without sacrificing existing lab techniques, we modified two standard laboratory experiments to include chiral GC analysis as follows. (1) The extraction of carvone from spearmint leaves and caraway seeds via steam-distillation or other extraction methods is widely used in laboratories for analyzing the stereochemistry of the extracted products. The experiment was modified to include a GC method using a [beta]-DEX 225 column. This allowed the students to compare the retention times of the spearmint and caraway extracts with those in a racemic mixture and predict their stereochemical configurations (R or S). (2) The reduction of aldehydes and ketones is another common experiment performed at most institutions. Reduction of acetophenone using sodium borohydride produces a racemic mixture that is observed in the form of two retention times on the chromatogram. Alternatively, reduction using either enantiomer of commercially available Corey-Bakshi-Shibata (CBS) catalysts provides alcohols with higher enantiopurity. Using the GC data, students determined the dominant alcohol enantiomer produced by comparing the retention times of the product enantiomers with that of commercially available enantiopure alcohols. They also used chromatographic data to calculate the enantiomeric excess from their reactions. The experiments also teach students other essential methods, such as inert-atmosphere techniques, thin-layer chromatography, multivendor software analysis, and determining the effects of reaction conditions on product yield and stereochemistry.

Topics associated with the chemical sciences form a significant part of the curriculum in science at the primary school level in the U.K. In this methodology paper, we demonstrate how a wide range of research articles associated with the chemical sciences can be disseminated to an elementary school audience and how children can carry out investigations associated with cutting-edge research in the classroom. We discuss how the Primary Science Teaching Trust's (PSTT's) "I bet you did not know" (IBYDK) articles and their accompanying Teacher Guides benefit children, primary (elementary) school teachers, and other stakeholders including the researchers themselves. We define three types of research articles; ones describing how children can reproduce the research themselves without much adaptation, others where children can mirror the research using similar methods, and some where an analogy can be used to explain the research. We provide exemplars of each type and some preliminary feedback on articles written.

Training in chemistry is essential for undergraduate medical students; however, at the National University of Colombia, basic chemistry courses are associated with high fail rates and low academic performance with regard to first semester students, especially in vulnerable special admission populations. A longitudinal study was carried out via program evaluation methodology using quantitative and qualitative techniques to assess an innovative pedagogical strategy founded on context-based learning and different didactic and evaluative strategies employing information and communication technologies (ICT), which was tested on students of medicine by an interdisciplinary team of teachers in a new course. With the pedagogical strategy, a statistically significant improvement was observed in the academic performance of the students, with an increase in the mean grades that went from 3.61/5.00 to 3.95/5.00, a decrease of the fail rate from 15.50% to 3.48%, and the development of useful chemistry knowledge for the students during their training and for their professional lives. Furthermore, the study became an opportunity for collaborative learning among colleagues, favoring ongoing training of teaching staff and pedagogical innovation in professional learning communities.

In chemistry, women are still underrepresented in the postbaccalaureate stages. However, there has been limited discussion in STEM education that treats chemistry as a singular discipline and explores doctoral students' experiences from a mentoring perspective. This qualitative research study investigated how contextual factors (i.e., social barriers and social support) and personal factors (i.e., being a female student) influence students' motivation and career goals in chemistry based on the Social Cognitive Career Theory, with an emphasis on mentoring experience as one of the contextual factors. Fourteen women doctoral students were interviewed. The findings revealed that women students rarely planned to stay in academia because of the barriers they experienced, such as the overwork norm. Women students faced microaggressions, such as others questioning their ability, a lack of sense of belonging, and unequal involvement in administration work. Mentoring support as a format of social support can mitigate these challenges. However, students' needs were nuanced depending on their developmental stages. The study concludes with nine action items for faculty members to support women students' success in chemistry, providing valuable information for future policy and mentoring training program designs.

GCSE examinations (taken by students aged 16 years in England) are not intended to be speeded (i.e. to be partly a test of how quickly students can answer questions). However, there has been little research exploring this. The aim of this research was to explore the speededness of past GCSE written examinations, using only the data from scored responses to items from a sample of 340 GCSE components. Speededness was calculated as the average (mean) percentage marks lost from the longest string of unanswered items at the end of each student's examination paper. The potential impact of student ability on examination completion patterns was taken into account. The data suggested that most GCSEs analysed were unlikely to have been speeded. This method of exploring the speededness of exams using only scored responses has potential (although there are limitations), and it can flag potentially problematic components for further investigation.

Despite the importance of physics practical work in higher education, its implementation is often hampered by various constraints and problems. Technology, such as learning management systems (LMS) and mobile learning, can offer solutions to some of these problems and enrich students' learning experiences. Therefore, this research proposes a model called Practical Works in Physics via Mobile Learning and LMS (PWP-MLMS) that exploits features of LMSs and mobile devices to overcome specific challenges encountered in physics practical works and improve students' performance in these works. The model was designed, validated, and evaluated within the teaching context of a Moroccan university. To assess the model's effectiveness, 128 students in the Bachelor of Education, Physics-Chemistry specialization were randomly divided into two groups of 64 students each: an experimental group using the model for practical work on the topic of rectification and filtering in the electronics module, and a control group following the conventional method for the same practical work. The results of the evaluation showed that the proposed model can significantly reduce the time required to complete the practical work, have a positive influence on the students' technical skills, and improve the quality of their laboratory reports.

The ability to design effective technology-enhanced learning (TEL) experiences is a critical skill for university teachers. However, challenges endure on how best to develop university teachers in research-intensive universities to design TEL experiences that meet student, professional, and employer expectations. Having a greater insight of the varying ways students use educational technology in their learning benefits university teachers' TEL design skills. To develop this insight, a qualitative case study comprising differentiated interview strategy was conducted to explore students' use of educational technology for their university learning. This research drew on phenomenographic and sociocultural theoretical perspectives and analysis techniques to investigate university students' experiences of educational technology use. The analysis of the research data collected found a variance in the way students used educational technology for their university learning with three distinct dispositions identified. This study identified that students' varied dispositions influenced their educational technology use and were mediated by the task and social contexts of their learning. These findings aim to support university teachers further develop their TEL experience design skills.

This study aims to develop an augmented reality (AR) board game for teaching atomic models and measure its effectiveness from the student's point of view. The Analysis, Design, Development, Implementation, and Evaluation model was used to create the AR board game to help achieve the study objectives. The study collected data from three focus groups, each one consisting of 8 students, as well as a questionnaire distributed to a sample of 30 specialists. Qualitative analysis was used on the reflective writing of a sample of 20 female students from Kferit's Secondary Girls' school upon experiencing the educational product to measure the study's effectiveness. The study findings revealed the great credibility of the educational product and its effectiveness in promoting creativity, innovation, communication and collaboration skills, and information literacy; as well as improving student motivation in a more entertaining learning environment.

To address the challenge of improving the understanding of chemistry concepts, particularly pH, this study explored the impact of integrating educational robotics on students' motivation and learning outcomes. A total of 160 3rd-year middle school students from a public school in Meknes, Morocco, participated in the study, which was divided into an experimental group (n = 82) and a control group (n = 78). Student performance was evaluated through standardized tests, while motivation levels were gauged using a questionnaire. The findings indicated a significant increase in motivation among students in the experimental group compared to those in the control group. However, no significant differences in overall academic performance were detected between the two groups. These findings provide valuable insights for educators and curriculum developers, underscoring the importance of integrating innovative pedagogical approaches with traditional methods to enhance science education.

Calculating analytical uncertainties as a part of method validation is a relevant aspect of field and laboratory practices in instrumental analytical chemistry subjects, which usually require complex algorithms. This work describes the development and didactic use of an automatic and straightforward informatics tool, implemented in an Excel macro, for calculating and interpreting the uncertainty of an analytical method against a reference method on field measurements. The software was initially developed for field testing of low-cost air quality monitoring analytical methods against reference methods, and the present work shows its adaptation to a didactic environment. The uncertainty calculation software was implemented through an Excel macro based on Visual Basic as a graphical user interface. It finds a best-fit line that describes the relation between concentrations determined by the candidate and reference methods. The software generates the analytical validation results (slope and intercept with their respective confidence limits, and expanded uncertainty of a concentration determined by the candidate method), hiding the intermediate functions and calculations. The Excel interface eases uncertainty calculations for undergraduate students, although the background mathematics can be quickly unveiled to students for didactic purposes. This tool has been applied to a laboratory exercise focused on validating experimental results obtained in the measurement of ozone levels in ambient air by passive sampling and spectrophotometric detection. The uncertainty calculation software has proved valuable by providing the student a resource to check the analytical quality of the data generated in the laboratory, while assimilating the fundamentals behind the calculations.

Various similar primary studies report varying impacts of applying blended problem-based learning (Blended PBL) in improving students' 21st-century skills. This study aims to group similar studies on the effect of blended PBL on students' 21st-century skills in science learning through meta-analysis. In addition, studies were analyzed on variations in models, education levels, subjects, and 4C skills. There are 44 articles worth analyzing. The data was analyzed using Excel and JASP applications by presenting results in size effect values, forest plots, and published bias tests. The results of the analysis show that science learning with blended PBL improves 21st-century skills that are better at science learning than other learning (g = 0.617, 95% Cl 0.296-0.937, p < 0.001, I[superscript 2] = 96.861%). Analysis of moderator variables showed that in the variation model, level of education, subjects, and 4C skills, there was a significant effect. These findings confirm that blended PBL is efficiently used to train students' 21st-century skills in science learning.

This paper will provide several examples of science and mathematics integration: navigation/map-reading, ecology/ecosystems/population growth, and chemistry/molecular structures. This paper underscores integrating STEM subjects with problem-based learning with technology such as video/computer simulations/programming/coding and the dynamic free online software GeoGebra. The paper suggests some GeoGebra-based connections to the science and math that is taught and a way to connect the disciplines with technology. Science involves and uses mathematics, and both subjects involve problem solving, and math is the tool that science uses. Subsequently, integrating science and mathematics using problem-based learning with technology might be a way to improve science and mathematics instruction while building confidence for STEM. Recommendations for STEM teachers are made along with some GeoGebra illustrations.

Representation plays an important role in helping students understand chemistry learning. This is due to the many chemical concepts that require visualization. Representation is something that still needs to be studied. So this study aims to see the development of representation research in chemistry education. The articles used in this study are articles from 2018 to 2022. This Systematic Literature Review research used Publish or Perish software, then filtered and extracted data according to the criteria for the research objectives to create 30 relevant articles and combined using the Prisma Protocol. The results showed that research related to representation in chemistry learning is still frequently conducted in the last 5 years. This research often discusses related to cognitive ability, which is most associated with chemistry concepts and conceptual understanding. Students and teachers are commonly used samples in research. In addition, stated of matter is most widely used subject in chemistry research.

The goals of the study were as follows: i) to design an active science learning activity on stoichiometry for grade 10 students, ii) to evaluate the academic achievement of grade 10 students after receiving an active science learning activity on stoichiometry, and iii) to investigate the perspectives of grade 10 students regarding an active science learning activity on stoichiometry. The research utilized a sample group consisting of 41 students who were enrolled in the tenth grade during the second semester of the academic year 2022. The research tools provided participants with active science learning lessons. A test of the kids' academic prowess as well as their thoughts on the use of hands-on scientific learning activities will be administered. The mean, the standard deviation, and a one-sample t-test were the types of statistics that were utilized in the investigation. The following is an outline of what the research found: i) the appropriateness of the active science learning activities was judged to be the highest level, ii) the academic achievement of grade 10 students after receiving the active science learning activities on stoichiometry had an average score that was higher than the criteria of 70% with a statistical significance at the .05 level; and iii) the opinions of students on the implementation of active science learning activities on stoichiometry were in the agree level.

Graphic Organizers are visual and graphic display that illustrates the correlations between facts, terms, and ideas with a learning task. Integrating Graphic Organizers can enhance the efficiency of the teacher's delivery of lessons and students' learning. However, no study had been conducted in using graphic organizers in the process of teaching and learning. Therefore, this explanatory mixed-method study aimed to investigate the effectiveness of Graphic Organizers in teaching Chemical Bonding to grade nine (n=98) students in Samtse Dzongkhag, Bhutan. The study's main objective was to compare the academic achievement of the control group (n=53) and experimental group (n=45) and also to investigate students' and teachers' (n=6) perceptions of using Graphic Organizers in teaching and learning Chemistry over four weeks. Learning achievement tests (pre-test and post-test), semi structured interviews, and survey questionnaires were used to collect the quantitative data and qualitative data. The independent sample t-test analysis of the post-test scores revealed a statistically significant difference between the control group and the experimental group with a mean difference value of 1.17 (p=0.017), indicating that the use of Graphic Organizers improved the students' learning achievement which was also reflected in the qualitative data gathered through interview and survey questionnaire. As a result, this study strongly suggests the use of graphic Organizers as a teaching and learning tool to improve students' academic performance in Chemistry.

Numerous studies have delved into the application of augmented reality (AR) in chemistry education, focusing on specific topics, equipment requirements, and advantages. However, there remains a notable dearth of research examining the evolutionary characteristics of AR in this context. This study, employing bibliometric analysis on 66 articles spanning from 2012 to 2022, reveals that research primarily revolves around pedagogical approaches and AR technology development, particularly in kindergarten to 12th grade (K-12) education. Despite the United States exhibiting the highest publication frequency, there is a significant absence of studies addressing emotions, cognition, and physiological changes. Shedding light on these research gaps, this study underscores the need for further exploration into the cognitive, emotional, and physiological aspects of AR integration in chemistry education. Ultimately, the insights gleaned from this study offer valuable guidance for researchers, educators, and practitioners alike, facilitating the advancement and effective application of augmented reality in chemistry education (ARCE).

Mastering creative thinking skills (CTS) is crucial for enhancing students' science conceptual understanding. However, conventional teaching prioritizes linear thinking over the three sub-CTS essential to science learning: associative, visual, and divergent thinking. Weaknesses in these three sub-CTS cause students to have misconceptions, difficulty in creating mental images, and an inability to generate ideas on abstract scientific concepts. The aim of this study is to evaluate the effectiveness of the Digital Storytelling Science Creative (DSSC) module in enhancing these three sub-CTS, based on the topic of acids and bases. The ASSURE instructional design model guided the DSSC module design and development process. This quasi-experimental design study involved 63 eighth-grade students. Analysis of two-way MANCOVA using the data collected through the administered Creative Thinking Skills Test revealed that the DSSC module group performed significantly better than the control group in divergent thinking. However, the DSSC module did not significantly affect students' associative and visual thinking or gender.

Virtual simulations are a very useful educational resource to improve the teaching of chemistry. Their use makes it possible to facilitate the comprehension of concepts, promotes the development of scientific competences and even improves student attitudes toward chemistry. However, it is important to point out that a simulation by itself is not enough to improve student learning. Methodological design is a crucial aspect in order for its classroom use to be significant. Simulations must form part of an instructional sequence that promotes said learning, and thus the role of the instructor is key. This work conducts a systematic review with the aim of analyzing how to apply the use of simulations in the teaching of chemistry in secondary schools, delving deeper into the way in which simulations are used from a methodological perspective, in order to improve the learning processes and results. In this sense, it was found that there is an improvement in learning on both the level of content comprehension and in scientific competences. Guided research is also identified as the most effective methodology for the application of simulations in the classroom. With a look to the future, it is suggested that there is a need to conduct research on the continued use of simulations in the classroom, as well as their characteristics and the instructional methods used.

Laboratory activities are essential and important components of learning chemistry at the undergraduate level. The COVID-19 pandemic led to disruption of traditional modes of teaching and learning over the whole education spectrum including laboratory courses in chemistry. Although unfortunate, the COVID-19 lockdown period and following years challenged well accepted norms leading to new opportunities for higher education. The purpose of this work is to synthesize useful lessons from student experiences during COVID-19 pandemic and post-pandemic era aiming for improved future chemistry laboratories at the college and university level. Previously published studies addressed advantages and disadvantages of face-to-face vs. remote and online teaching of chemistry laboratory courses. However, there are only a few student-centered studies which analyze students' perceptions of undergraduate chemistry laboratories in the post-pandemic era. Although the study was conducted at the university in the United States, we believe the lessons learned could be used globally. The present study contributes to the existing body of knowledge in this field of research. It is unique because surveyed students experienced different modalities of the laboratory and were given an opportunity to compare both modalities side by side. Therefore, student experiences provide stronger foundations of their preferences and perceptions described in this work. Based on our findings, it appears that post-pandemic undergraduate students taking a non-major course prefer hands-on experiments and a hybrid modality of chemistry laboratory.

One of the skills needed in the 21st century is critical thinking skills that need to be developed for secondary school students. Currently, upper-secondary students' critical thinking skills are still low. To overcome the problem, websitebased E-module learning media was developed using a STEM approach with a Problem-Based Contextual Learning model with virtual experiments using PhET. The aim of developing this website-based E-Module media is to improve students' thinking skills on thermochemistry learning materials. The development model is 4-D. Data collection in this study was gained from three schools representing schools in the high, medium, and low categories in Surakarta, Indonesia. In this research,216 students were involved as the subjects at the development module implementation stage. The results of expert validation of the material, language, and media modules are suitable for use with a score of 90.03% categorized as very good. In the feasibility test, the score was 87.98% categorized as very good. The score for critical thinking skills was 79.18% in the critical category. N-Gain score was 0.70 categorized as high criteria. The result of the independent sample t-test sig 0.023, Critical thinking skills were conducted using E-Module. The results are higher than conventional media and effective in improving students' critical thinking skills.

Pedagogical Content Knowledge (PCK) is crucial for effective teaching, but it is a complex and implicit knowledge, especially in chemistry education. Therefore, this study explores the use of the LBCD (Learning by Collaborative Design) model to support PCK development among pre-service chemistry teachers. This study adopted a one-group pretest-posttest experimental design, conducting the intervention with 210 participants. After data collection, the study first conducted exploratory and confirmatory factor analyses on the pre-and post-test data, confirming the good reliability and validity of the designed chemistry PCK questionnaire. Additionally, paired sample t-tests were used to measure pre-service teachers' PCK development in dimensions of CTO, KOA, KOC, KOL, and KOS. Furthermore, unstructured interviews helped to further clarify the participants' views of the effectiveness of the LBCD curriculum. The results showed that the developed chemistry PCK questionnaire and the LBCD model had a significant statistical impact on the PCK elements development among pre-service teachers, although the development of these elements was not balanced. Finally, the study provides suggestions for the measurement of PCK elements, as well as chemistry teacher education, such as applying the LBCD model to different teacher groups and testing PCK element models using the methods of this study.

This research explores the development, execution, and student feedback on a multi-themed digital escape room (ER) activity, designed for teaching medicinal chemistry during the COVID-19 pandemic. It aimed to examine students' perceptions of the ER activity, focusing on its effectiveness in enriching students' understanding of medicinal chemistry and increasing their engagement level. Implemented in a synchronous online lecture for third-year pharmacy students, this ER activity was designed with the intention of fostering active learning and teamwork. A total of 184 students participated in various medicinal chemistry-themed challenges, using puzzles on a virtual whiteboard and breakout rooms for team discussions. The findings gathered from the post-implementation survey highlight the impactful learning outcomes associated with a replicable ER activity designed for online medicinal chemistry courses. This innovative teaching strategy not only cultivated a deeper understanding of key medicinal topics among students (mean=4.36) but also enhanced their collaborative skills through increased peer interaction (mean=3.73). They also reported higher level of engagement due to the interesting activities (mean=4.53). The quantitative results were affirmed by the qualitative feedback obtained from the open-ended questions, indicating a consistently positive learning experience and student reception towards the ER implementation. Although they encountered obstacles like stress, internet issues, and unfamiliarity with the ER format, more than 70% of the students agreed that the ER activity was a highly effective learning tool. This digital ER activity also demonstrates promise as an educational tool to encourage active learning and enhance students' motivation in learning medicinal chemistry. The study has showcased the potential benefits of integrating digital ERs into traditional teaching methods, especially for catering to the preferences of Generation Z students in a collaborative learning environment. In addition, the research offers valuable insights into the use of ERs in pharmacy education, contributing to the scarce literature on ER applications in medicinal chemistry and opening avenues for further research on ER-based educational strategies.

This study aims to investigate the applicability and effectiveness of the peer instruction method on teaching the subject of acids and bases at the 12th-grade level. In addition, it aims to determine the effect of peer instruction on students' attitudes towards chemistry and in-class discussion, and to examine students' opinions regarding peer instruction post-implementation. The sample of the study consisted of 21 students studying in their 12th grade at a private high school. During the research process, the unit of acids and bases was covered by the researcher using the peer instruction method and the implementation was completed over a 5-week period. The study was designed as an action research, with both qualitative and quantitative data collected and examined. The study's quantitative data were collected through the Acids-Bases Concept Test (ABCT), Chemistry Attitude Scale (CAS), Argumentativeness Scale (AS), and concept questions, while the qualitative data were collected through the Method Opinion Scale (MOS), semistructured interview, and observation. The analysis of the data was carried out using quantitative and qualitative methods. The results showed that there was a notable increase in the academic achievement of the students after the implementation. Furthermore, the results obtained from ABCT and semi-structured interviews indicated that peer instruction improved the students' conceptual learning, and was also effective in eliminating their misconceptions. Although the pretest-posttest scores of the CAS and AS did not demonstrate a considerable statistical difference, the observation and semi-structured interview data highlighted that the students' attitudes towards chemistry and in-class discussion increased positively. At the end of the implementation, it was observed that the students' attitudes towards the peer instruction method were positive and that the students considered it to be very useful and effective.

Due to the difficulty of chemical compounds to visualize, augmented reality (AR) integrated with mobile learning has been developed as an alternative media for studying chemistry. This study aims to analyze the use of AR-integrated mobile learning in chemistry education from a bibliometric perspective in the last decade. A total of 225 articles were retrieved and analyzed from the Scopus database in the period from January 2012 to September 2022. The results of the analysis indicated that in the range of 2012-2022, the highest number of publications occurred in 2021, with the United States as the most productive country with a total of 54 publications, followed by China, Indonesia, and Japan. Wojciechowski, R., is the most frequently cited author, followed by Cai, S. "Augmented reality" is the keyword that appears most frequently in publications. This study presents useful findings that can serve as a guide for educators, scholars, policymakers, and educational designers for future research or reference in this area regarding current trends.

Past studies have explored student self-perception within chemistry courses. Various factors have been explored including course level, student academic background, and gender. However, it appears that there are few (if any) studies that have looked at whether students are aware of how they have performed previously in the course. Through a study over a two-year period, students at all levels (freshman through M.S.) of a chemistry program were surveyed and asked to self-report predictions of their score on examinations as well as several other items including their recall of previous course grades. At all levels, poorer performing students were less likely to be able to recall previous examination scores.

This study focuses on developing a five-tier chemical diagnostic test based on a computer-based test with 11 assessment categories with an assessment score from 0 to 10. A total of 20 items produced were validated by education experts, material experts, measurement experts, and media experts, and an average index of the Aiken test > 0.70 was obtained. The validation results were tested on 580 respondents and analyzed using the Generalized Partial Credit Model (GPCM) Item Response Theory (IRT) type. The results of the analysis show that all of the items meet the requirements to be said to be valid for the model; the evidence of the value this: RMSEA < 0.08, CFI > 0.87, SRMR < 0.10, GFI > 0.90, NFI > 0.90, NNFI > 0.90, IFI > 0.90, TLI > 0.90, and RFI > 0.90, and all items were obtained has a p.S_X2 value greater than 0.05 which indicates that all items developed are fit and by the GPCM model. The construct reliability (CR) value is 0.99, which suggests the construct is reliable. The most challenging item is item 9, and the most accessible item is item 4. [Note: The page range (91-105) shown on the PDF citation is incorrect. The correct page range is 92-106.]

Student giftedness is a complex, developmentally dynamic and contextual phenomenon that teachers confront every day. In the classroom, teachers often meet students who have exceptional potential or achieve very high learning goals. The aim of this study is to illustrate the evaluation of inquiry-based learning activities in a specific context (Diversity in Science towards Social Inclusion learning modules) implemented in a non-formal educational setting for gifted students in relation to their level of individual interest and their autonomous and controlled motivation, comparing different groups of students. We investigate how these activities affect the students' attitudes towards inquiry-based learning, their situational interest and their interest in science careers. A total of 264 Slovenian lower secondary school students participated in the study. The students participated in non-adapted and adapted activities based on the inquiry-based learning approach. The data were collected using pre- and post-activity questionnaires. Participation in the study, which took place in the period between the 2021/22 and the 2022/23 school years, was voluntary. The data was collected anonymously and used for research purposes only. The results show several statistically significant differences in how students' level of individual interest, autonomous motivation and controlled motivation for learning chemistry affects their attitudes towards inquiry-based learning, their situational interest in Diversity in Science towards Social Inclusion activities and their interest in science careers. For the gifted and non-gifted students who participated in "Forensics Science" lab activities before and after the adaptations to the modules, the results related to their attitudes towards inquiry-based learning and situational interest are also reported. Thus, the results of the study provide useful insights for researchers in the field of chemistry education as well as for chemistry teachers in lower and upper secondary schools. The presented study is a good example of best practices that chemistry teachers can apply in teaching chemistry, thus enabling all students, not only the gifted ones, to learn chemistry using the inquiry-based learning approach.

Throughout the world, schools are visited by students with different native languages. Therefore, the linguistic competencies of the students are diverse. Dealing with this diversity is a great challenge for teachers in general, including in science subjects. To face this challenge, all institutions involved in education should adapt their teaching and learning to linguistic diversity to foster student's language competencies. Non-formal education, such as student laboratories, could enhance formal chemistry education and support students in learning the subject's contents and acquiring language competencies. To this purpose, language-sensitive and language-supportive learning settings for different chemical topics and contexts are developed to enable all students to participate actively and foster language competencies. The learning settings are implemented and evaluated at the Ludwigsburg University of Education (Germany) using a cyclical approach based on Participatory Action Research. Data from 147 students from seven learning groups of various grade levels and school types were collected before and after they experienced the work in student laboratories. The focus was on students' situational interests and their views on offered language-sensitive and language-supportive methods, tools, and activities. The data shows that the approach has a positive effect on students' situational interest. Methods that were especially helpful for the students are filtered. On this basis, implications are drawn for the application to other non-formal education offers

Scholars as exemplars and their linked eponyms play a significant role in education. Since the discovery of the periodic law in 1869, perceptions of Mendeleev and his eponyms may have shifted. With the aim of assessing the historical and current portrayal of Mendeleev and his eponyms in chemistry textbooks and on the Internet, content analysis of textbooks, including Soviet and contemporary Russian (11) and Ukrainian (16), was conducted. Additionally, an Internet search in 7 languages was conducted to assess the prevalence of Mendeleevian eponyms online. Primary Mendeleevian eponyms are predominantly utilized in the Russian segment of the Internet. While Mendeleev's portrayal held significance in mid-20th-century Soviet chemistry textbooks, his presence has dwindled in current Russian and Ukrainian textbooks. This decline is attributed to the obsolescence of associated chemical realities, the disputed priority of Mendeleev, and an ambiguous attitude towards him. The implications of this decline include loss of historical context, reduced memorization aids, impact on critical thinking, disruption of continuity, and reduced humanism in education. The research underscores the importance of a balanced and inclusive approach to science education, recognizing contributions from scientists of diverse backgrounds and perspectives, and highlights the interconnected nature of science education and international relations.

Redox reaction is a core chemical concept. However, its abstract nature makes it very difficult for students. Students' conceptual structure reflects their mastery of concepts, which helps teachers implement targeted educational strategies. This study aimed to explore the conceptual structures of redox reaction held by students (grades 10 to 12) by employing MDS and HCA. A total of 606 students participated, with 195 students in 10th grade, 202 in 11th grade, and 209 in 12th grade. The results indicated that three-dimensional solutions were appropriate for the conceptual structures of 10th and 12th graders, while 11th graders demonstrated two-dimensional solutions. All students grouped the 15 concepts related to redox reaction into two large clusters: metrology and the redox reaction process. Moreover, both 10th and 12th graders further subdivided the 15 concepts into four subclusters: metrology, oxidation process, reduction process, and chemical reaction. Students' conceptual structures were rational across all three grades. The conceptual structures of 10th and 12th graders were more refined than those of 11th graders, and there was no significant difference between the conceptual structures of 10th and 12th graders. 11th graders learned about electrochemistry and tended to confuse concepts related to redox reaction with those related to electrochemistry.

Science identity, encompassing perceptions of competence, interest, and recognition in science, alongside learning self-efficacy reflecting confidence to master science skills, are key drivers of outcomes. However, developmental patterns likely vary across contexts. Participants were 512 Chinese students spanning grades 1-3 who completed the Science Identity Scale and Science Learning Self-Efficacy Scale, with physics, chemistry, and biology achievement scores gathered. A Partial Least Squares Structural Equation Model assessed relationships. Results substantiated psychometrics for motivational measures. The model indirectly predicting achievement via first-order discipline-specific paths explained more variance than direct second-order effects. Effects significantly varied across groups stratified by grade and region. Interest and conceptual knowledge drove physics and chemistry success, while higher-order skills enhanced biology achievement overall. However, relationships differed within subgroups, suggesting personalized motivational support needs--self-belief/competence foundations for struggling learners, conceptual development for those with high prior achievement, and intrinsic enrichment for disinterested students. Results detail complex motivational profiles underlying science achievement requiring tailored identity safety and self-efficacy scaffolding alongside conceptual and skill-building for excellence across scientific disciplines. Motivational support systems may spur more equitable and optimal science outcomes among diverse adolescent learners.

The rapid development of information and communication technology demands the production of digital products. This study aims to produce a digital instructional book based on Balinese local cultures to enhance the learning outcomes of high school students. The development of this book used the ADDIE model. The analysis phase included an analysis of the chemistry curriculum, teachers' and students' opinions about digital books, digital learning, and Balinese local cultures related to the chemistry content. The design phase included creating a framework and preparing a digital instructional book based on Balinese local cultures. The development phase included validation by content, language, and media experts. The implementation phase included testing the practicality and effectiveness of the book. The evaluation phase was carried out at all phases of the ADDIE model. The characteristics of this book were that it was made in a digital form and integrated with local Balinese cultures. It met the criteria of being a very valid category based on content, language, and media aspects. It also met a practical and effective category to improve students' learning outcomes. It is very useful to enhance chemistry learning outcomes in the era of the Industrial Revolution 4.0.

Now days, the level of students' engagement in secondary school chemistry is low. The aim of this study was then to enhance student chemistry engagement through simulation-integrated 7E context-based instructional strategy and compared its efficacy with 7E context-based instructional strategy, simulation-integrated conventional teaching approach, and conventional teaching approach. For the quantitative part, 15-item chemistry engagement scale was utilized to collect data from 229 grade 10 students as part of a quasi-experimental pre/post-test non-equivalent control group design. Both descriptive and inferential statistics were utilized. Semi-structured interviews were used to collect qualitative data. The study's findings revealed that, when compared to the other instructional strategies, the simulation-integrated 7E context-based instructional strategy was the most successful at raising students' overall engagement and its dimensions. This study implies that implementing a simulation-integrated 7E context-based instructional strategy can boost students' overall and individual levels of engagement in chemistry. Thus, to enhance chemistry learning, teachers may progressively move from the conventional approach to the use of simulation-integrated 7E context-based approach over the other strategies.

This research is a systematic literature review study that aims to explore the evidence in publications that report on the types of misconceptions experienced by students in learning chemistry by providing types of students' chemical misconceptions based on levels and obtaining the correct formulation of misconceptions so that they can be used as a basis for overcoming them. The collected publications came from Scopus-indexed publications in journals, Conference Proceedings, Books, and Book Series from 2006 to 2021. Data analysis used was thematic analysis and data extraction and publication selection procedures using the PRISMA modification method, which consisted of four phases: identification, screening, eligibility, and inclusion. The linkages between all the literature with misconceptions were analyzed using VOSviewer software to visualize bibliometrics. There are four chemical materials with the most misconceptions experienced by students: chemical equilibrium with seven studies, covalent bonds with six studies, acid-base theory with five studies, and materials and their classifications with five studies. Countries actively researching misconceptions are the United States, Turkey, Taiwan, South Korea, Ireland, England, Colombia, Macedonia, India, Thailand, Slovakia, Indonesia, Spain, Malaysia, Finland, and Ukraine. The research findings provide an overview of chemical materials that students often experience misconceptions about and the types of misconceptions about these chemical materials. [Note: The publication year (2023) shown in the citation on the PDF is incorrect. The correct publication year is 2024.]

This study aims to determine the need for multitiered diagnostic instruments to identify misconceptions and their causes, as well as multi-representational profiles in chemistry lessons starting from grade 10 in the initial to the final material for grade 12. The data analysis technique used in this research is descriptive, namely descriptive analysis. Systematic and factual facts are investigated by collecting data, processing and analyzing. The instruments used have been validated by expert lecturers and received improvements in the diction of the question sentences. The subjects used in this study were several chemistry teachers in East Java, totalling 67 teachers who were taken by random sampling. Data collection was carried out through questionnaires distributed using the media google form. The results of the analysis found that diagnostic assessments in chemistry subjects were made up to the macroscopic, submicroscopic, and symbolic levels with a percentage of 93%; it is necessary to apply diagnostic assessments to all chemistry learning topics with a percentage of 61%, diagnostic assessments in chemistry subjects must be carried out in a multitiered manner level 5 with a percentage of 79%.

Augmented Reality (AR) has emerged in our educational paradigm as a new tool to accelerate change in the teaching and learning process. This technology can improve students' visualisation skills, which helps them understand abstract concepts, especially in Chemistry. Furthermore, visualisation skills help improve students' critical thinking. This study was conducted with 16 secondary students. Before and after the intervention, students were required to complete a Purdue Spatial Visualisation Test to measure their visualisation skills. During four weeks of intervention, students explored the content using a mobile augmented reality application for learning chemical bonds (called CBOND) and completed critical thinking tasks each week. This study employed data mining using a decision tree to predict the path to improving students' visualisation and critical thinking skills in learning chemical bonds. The results revealed that CBOND had a significant effect on students' visualisation and critical thinking development. Therefore, this study proved that augmented reality technology could help students to visualise abstract concepts, especially in Chemistry, and in turn, foster their higher level of critical thinking.

This study aimed to develop a two-tier test to identify misconceptions of pre-service teachers about chemical equilibrium. The sample was made up of 135 pre-service chemistry teachers at Farhangian University in Iran (70 female and 65 male) who were spending the final semester of the eighth semester of the teacher training programme. After analysing the distribution pattern of the participants' answers in the first and second tiers, fifteen misconceptions were identified. A new misconception was identified for the first time, which we called the common ion effect which was held by about 50% of participants. Gender was a significant factor in the rate of misconceptions, with male preservice teachers having fewer rate misconceptions compared with females. The results showed that when the first tier or the second tier was considered alone, female participants performed better, but when both tiers were combined, the performance of males was better. However, males had a weaker performance in three questions related to the approach to equilibrium in this situation. These findings will help educators plan their instruction by knowing pre-service teachers' preconceptions about chemical equilibrium.

A didactic sequence is proposed using an infrared puzzle and a didactic questionnaire for the teaching-learning of infrared spectroscopy at the upper secondary level. The didactic sequence that was designed was implemented in person in the subject of Chemistry IV at the high school level, corresponding to the sixth semester of the curriculum of the National School of Sciences and Humanities (CCH), Vallejo Campus, of the National Autonomous University of Mexico. In the didactic sequence, students understand the importance of functional groups where they determine organic compounds, by identifying regularities, properties, and structure of alcohols, aldehydes, ketones, and carboxylic acids. After applying the didactic sequence, a post-test questionnaire was applied, and the results showed that the students significantly improved their knowledge of IR when using the puzzle that allowed them to correctly identify the bands that identify the carbonyl group.

Different goals of high schools and vocational schools in Indonesia become the main factor causing the distinction of preparedness of chemistry teachers in using the Science, Technology, Engineering, and Mathematics (STEM) approach in their teaching. Yet the High School Chemistry Teachers (HSCT) and Vocational School Chemistry Teachers (VSCT) need to have positive perceptions about STEM since it offers students meaningful chemistry learning. Through an explorative survey method, this research investigated in-service chemistry teachers' perspectives toward the potential of STEM learning in high school and vocational schools of chemistry. A number of 131 in-service chemistry teachers (82 HSCT and 49 VSCT) from Yogyakarta, Indonesia was voluntarily participated in this research through a saturated sampling technique. Perception Scale on STEM (PC-STEM) consisting of 54 closed-ended questions and seven open-ended questions were used to collect the data. Data analysis techniques involved one-way MANOVA testing, descriptive statistics, and content analysis with interpretive coding. The findings showed that HSCTs' and VSCTs' perspectives toward STEM were in the good category. Thus, integrated STEM learning is potential to be used in chemistry lessons at high school and vocational school. However, there were not any statistically significant differences between HSCT and VSCT participants' perceptions of how STEM was being used to teach chemistry. Unfortunately, despite their perception being good, both groups of teachers signified a poor experience in applying STEM in their chemistry lessons. Therefore, teachers' professional development program about STEM is needed for chemistry teachers to successfully implement STEM-based chemistry learning.

The study aimed to investigate the effect of computer simulation and animation-integrated instruction on preservice science teacher trainees' conceptual understanding and retention of acid-base chemistry and stoichiometry. A quantitative approach with a pretest-posttest-delayed test quasi-experimental design was used. In the study area, there were only two sections of first-year trainees in the natural science department. So a comprehensive sampling technique of the two intact sections was employed. The two intact classes were randomly assigned to an intervention group (IG) and a comparison group (CG). Data was collected using Acid-Base Chemistry and Stoichiometry Conceptual Understanding of a two-tier multiple-choice Test (ABSCUT). Parametric statistics (independent sample t-test and ANCOVA) were used for the data analysis. The independent sample t-test was used for the pre-test analysis to examine the prerequisite experiences of trainees in the two groups and male and female trainees in the IG before the intervention. The result showed no significant difference between the mean score of the CG and IG. The result also showed no significant difference in the mean score of male and female trainees in the IG. The ANCOVA was used for post-test and delayed test analysis after the intervention. The result indicated that there was a statistically significant difference between the two groups on conceptual understanding, F(1,49)=5.07, p=0.029, partial eta squared=0.094, in favor of IG. This tends to imply the concepts of the trainees who received the intervention outperformed the comparison group. The ANCOVA result also indicated that gender difference has no statistically significant difference in the IG, F(1,24)=3.68, p=0.067. The delayed-test analysis showed that the IG has higher retention than the CG. Based on the results, this study recommended that policymakers, chemistry curriculum experts, chemistry curricular material developers, and practitioners alike consider the application of computer simulation-integrated chemistry instruction to enhance learners' conceptual understanding and retention.

The aim of this study was to develop students' chemical literacy by integrating dilemma stories into a Science, Technology, Engineering, Arts, and Mathematics (STEAM) project on petroleum. Chemical literacy can help students face future challenges by applying what they learn about chemistry subjects at school to solve problems in their daily lives. A qualitative research method was employed that included interviews, observations, reflective journals, chemical literacy tests, and student activity sheets, as data collection tools. Thirty six secondary school students participated in the research using a project-based approach consisting of five steps: value reflection, problem-solving, project monitoring and evaluation, project development, and transformation. This study used four chemical literacy components according to Shwartz, Ben-Zvi and Hofstein (2006) namely scientific and chemical content knowledge, characteristics of chemistry, chemistry in context, higher-order learning skills, and affective aspect. STEAM integrated with dilemmas stories provides opportunities for students to develop chemical literacy through value reflection, problem solving, and STEAM project. This study uses a dilemma story to understand chemistry concepts whereby students can develop a project by integrating chemistry and STEAM principles. The STEAM Project involved making alternative fuel to find a solution to a problem presented in the dilemma story. The researchers were challenged by the need to find a suitable chemistry-based dilemma story to integrate with a STEAM project while also empowering students and managing time resources.

This project report describes the process of a team of undergraduate researchers (Chemistry and Nursing majors), who analyzed 20th-century medical kits housed at The Columbus Museum (Columbus, GA, USA). Curators and museum personnel were unfamiliar with the contents and needed assistance in identifying the various chemical contents. Items were identified by the Taylor Lab, which was followed by fully elucidating the chemical information in a chemical report and student-curated exhibit. The intent of this project was to help the museum be aware of how to properly curate and store the medical collections for an extended period. Laboratory analyses were executed to determine the composition of the aged items in the collections. The historical context of these kits and their contents provided knowledge of medicine to the community of Columbus, Georgia, in addition to explaining the use of medically related items in the 20th century.