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Chimica Didactica Acta : Journal of Chemistry and Chemistry Education
Published by Universitas Syiah Kuala
ISSN : 23384522     EISSN : 28096789     DOI : https://doi.org/10.24815/jcd
Core Subject : Science, Education,
Chemistry Education
Chimica Didactica Acta is a peer reviewed journal publishing research articles that address the topics of chemistry and chemistry education and practices. We focus on the topics but not limited to organic chemistry, inorganic chemistry, analytical chemistry, biochemistry, physical chemistry and educational chemistry and practices
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 80 Documents
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DEVELOPMENT OF NEARPOD LEARNING MEDIA FOR THE CONCEPT OF REACTION RATES COMPREHENSION Sarmita, Sarmita; Rahmayani, Ratu Fazlia Inda; Syahrial, Syahrial
Chimica Didactica Acta Vol 13, No 1: June 2025
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v13i1.43967

Abstract

The integration of Android technology and the internet into education in Indonesia has introduced innovative approaches to the learning process, enhanced by digital media. One notable example is the Nearpod application. This study aims to develop and evaluate the feasibility of Nearpod as a learning medium for reaction rate topics and to assess student responses to the application. The research follows the Research and Development (RD) methodology, employing the ADDIE model, which includes five stages: Analyze, Design, Develop, Implement, and Evaluate. The study was conducted in the Chemistry Education Department, Syiah Kuala University, and involved 60 students from the 2022 cohort who had completed the Basic Chemistry 2 course. Research instruments included a needs analysis questionnaire, a media feasibility assessment validated by experts, student response sheets, and System Usability Scale (SUS) questionnaires. The findings indicated that the Nearpod learning media achieved a validity score of 0.91, categorized as highly valid. The reliability assessment showed a reliability rate of 91%, indicating that the media is trustworthy. Student responses to Nearpod were overwhelmingly positive, with a satisfaction rate of 90%. The System Usability Scale (SUS) evaluation yielded a score of 71, placing the application in the "good" usability category. Based on these results, it can be concluded that the Nearpod application is a viable and effective learning medium for teaching reaction rate concept.
THE PERFORMANCE OF VIRTUAL LABORATORY OF MEMBRANE SYNTHESIS VIA PHASE INVERSION AS PRE-PRACTICAL GUIDELINE IN A SEPARATION CHEMISTRY COURSE Reza, Muhammad; Nupus, Nizawaton; Mayasri, Adean; Sabrina, Sabrina
Chimica Didactica Acta Vol 13, No 1: June 2025
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v13i1.45414

Abstract

The development of virtual laboratory(VL) has been widely used in secondary school teaching, notably science education. However, the development of VLspecifically for university-level education remains quite limited. In addition, in some practical disciplines, such as membrane-based separation chemistry, both lecturers and students face restrictions in equipment and resources. As a result, the goal of this study is to develop a VL for membrane synthesis practicum utilizing the phase inversion approach that can also be utilized in separation chemical practicum. In addition, the researchers assessed the amount of legitimacy and user response to VL media, specifically among students. This work follows research and development based on ADDIE (Analysis, Design, Development, Implementation, and Evaluation) framework. The first phase is begun with an analysis (via interviews) to investigate the lecturers issues and needs. Consequently, the analysis confirmed that the development of VL in separation chemistry is very essential. The researchers used feedback from the lecturer during the design stage, namely while gathering the material and presentation of VL to create the storyboard. Then, three experts confirmed the draft created during the development stage, declaring it highly validwith a proportion more than 85%. Face validity and construct validity took major revision to achieve 100% of highly valid. Following the revision steps of draft I (initial version) based on the validation results, draft II (revised version) was created for restricted testing with users (students), and the results revealed a very good response, with more than 90% of students providing feedback ranging from agree to highly agree. Their responses represent the impact received from VL, particularly in digital literacy, building critical and creative thinking, and learning flexibility. Some suggestions for enhancement, particularly the usage of foreign languages in VL, will be considered in the final stage. Thus, the VL can be recommended for use in membrane synthesis experiments in the separation chemistry course.
DEVELOPMENT OF ELECTRONIC STUDENT WORKSHEETS BASED ON PROBLEM-BASED LEARNING USING INTERACTIVE COMICS ON REACTION RATE MATERIAL Rachmi, Naila Syabina; Simatupang, Lisnawaty
Chimica Didactica Acta Vol 13, No 1: June 2025
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v13i1.45416

Abstract

This study aims to determine the feasibility of electronic student worksheets (e-SWS) based on Problem-Based Learning assisted by interactive comic media on the material of reaction rate and student responses, and teachers using electronic student worksheets (e-SWS) based on Problem-Based Learning assisted by interactive comic media on the material of reaction rate. This study is a research and development (RD) project utilizing the ADDIE development model (analysis, design, development, implementation, and evaluation), focusing on the implementation stage, including field trials. The study results were obtained with an average material validation of 75 percent and an average media expert validation of 89.06 percent; through these data, the results of product validation from material and media experts were 82.03 percent, with a very valid category and feasible to use. In the acquisition of field trial data, the average student response was 82.72 percent, with a very positive category for use, and the results of teacher responses were obtained at 96.73 percent, with a very positive category. So, electronic student worksheets (e-SWS) based on Problem-Based Learning, assisted by interactive comic media on reaction rate material, are feasible. They can be used as teaching materials in the learning process.
PERCEPTION SURVEY OF SELECTED BRANDS OF SACHET WATER SOLD IN BO CITY, SOUTHERN SIERRA LEONE Pujeh Junior, Mohamed; Kawa, Yahya Kudush; Kanneh, Umaru; Pujeh, Sallu
Chimica Didactica Acta Vol 13, No 1: June 2025
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v13i1.42588

Abstract

This study was conducted to delve into the nuanced perceptions surrounding specific sachet water brands Tex, Daramy Pure Water, Blue Diamond Water, Arjorkoh Pure Water, and Nice Pure Water within the dynamic landscape of Bo City in Southern Sierra Leone. Bo City, a vibrant hub, witnesses local suppliers' consumption and sale of numerous sachet water brands. A meticulously crafted checklist of questionnaires was administered to comprehensively capture the multifaceted perspectives of residents. The survey encompassed a spectrum of aspects, including participant profiles related to sachet drinking water, knowledge about various brands, preferred consumption times, motivations behind choosing sachet water, consumption rates across different brands, taste preferences, confidence levels in producers, and the underlying rationale for brand selection. This multifaceted approach aims to provide a holistic understanding of the diverse factors influencing sachet water preferences and consumption patterns among the local populace. Analyses of the results revealed that most respondents chose Tex 82(41%), followed by Blue Diamond 42 (21%), Arjorkoh Pure Water 40 (20%), Daramy Pure Water 23 (12%), and Nice Pure Water 13 (7%) being the least. The study also revealed that most people's choices were based on the following parameters: Safety 82(41%), availability 47(23.5%), and good taste 34 (17%), among other parameters. A recent Canadian study of more than 1,000 citizens found that satisfaction with water quality is linked to taste, odor, and color. The research also revealed that few sachet water brands have no outlets in strategic locations within the city, and the taste of the water was a key factor, the consumption was high during the dry season of the year, and this is reflected in the annual sales record by the suppliers. From the data available at the time of writing, we concluded that Tex is the first preference of the customers, followed by Blue Diamond, Arjorkoh, and Nice Pure Water, being the least due to their taste, color, and availability.
AN ANALYSIS OF STUDENTS' UNDERSTANDING IN REVIEWING ARTICLES: CASE STUDIES AND THEIR PERSPECTIVE Ruslan, Zuhra Adminira; Munawwarah, Munawwarah
Chimica Didactica Acta Vol 13, No 1: June 2025
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v13i1.44342

Abstract

Literature review is the process of collecting, analyzing, and synthesizing information from various sources that are relevant to a particular research topic. These sources can be scientific journals, books, articles, research reports, or other credible sources. In college, the task of evaluating literature is very common. Students are often asked to conduct literature reviews as part of their coursework. This study aims to find out how students understand and carry out literature review tasks. For this reason, the researcher directly observed 4th semester students of Chemistry Education UNM who were working on literature review assignments. The researcher collected data from their assignments and also the results of the surveys they filled out. By analyzing this data, the researcher wanted to find out to what extent students understood this assignment, what difficulties they faced, and what they thought about the literature review assignment. The results of the study showed that students generally showed a very good category in using language according to writing rules. Meanwhile, for the level of understanding of the topic, completeness of literary sources, and analysis of literary content, they had shown a good category. However, in writing references to the results of the literature review, students only showed a sufficient category. The survey showed that the literature review assignment helped most students in analyzing information and finding relevant sources. However, many students have difficulty in grouping information, making in-depth conclusions, analyzing information, reading many articles, and understanding unfamiliar language. These difficulties make it difficult for test takers to focus on completing literature reviews. This indicates that lecturers need to improve the way they give literature review assignments and apply more effective teaching strategies to help students understand how to review literature well, so that students are more trained in critical and systematic thinking.
DEVELOPMENT OF LEARNING MEDIA BASED ON ANIMATION VIDEO IN LEARNING HYDROCARBON MATERIAL AT GRADE XI SENIOR HIGH SCHOOL Fahlevi, Najla Rizani; Muchtar, Zainuddin
Chimica Didactica Acta Vol 12, No 1: June 2024
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v12i1.36913

Abstract

The impact of technological developments in education on learning process is significant. To be effective and efficient, the learning process must be developed, implemented, analyzed, and monitored. There are several students find it difficult to understand the terms, theories, and structures of carbon chain structures until they make an error; students mark in hydrocarbon quiz, with 0% student that have mark up from 61 to 100. Majority of student have mark in range 31 to 40 (39%) and least in range 51 to 60 at 4%. Teaching the structure of the carbon chain requires clear visualization, which would be helped by the teacher's exposure. It needs a proper media for teaching and visualizing how the chain's structure are. This research uses the ADDIE development model. This research begins by analyzing the problems and limitations faced in learning chemistry. The quality of animated video learning media with an assessment percentage of 84% by media experts, 91% by material experts. Based on the results of a questionnaire for 30 students, the percentage of assessment based on responses was 91% in the very good category. Based on test results on 30 students, with tcountgreater than ttable; 22.75166617 greater than 2.045 with the Ha hypothesis accepted. Class XI SMA Class XI Animation Based Learning Videos are declared valid based on expert and practitioner assessments. The results of the experts' assessments consistently categorize the animated videos being developed. The general assessment of this video is very good and usable.
ANALYSIS OF THE IMPLEMENTATION OF STEM-BASED MODULES ON PERCEPTIONS OF TEACHER AND STUDENT READINESS DURING THE INDEPENDENT CURRICULUM PERIOD (a Case study at High School No. 2 Kesuma Bangsa) Sarah, Cut; Alvina, Sirry; Imanda, Riska; Muliaman, Agus; Unaida, Ratna
Chimica Didactica Acta Vol 12, No 1: June 2024
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v12i1.37352

Abstract

This research aims to determine the readiness of teachers and students in the implementation of STEM-based modules for class X SMA Negeri 2 Kesuma Bangsa in chemistry subjects. The type of research used is qualitative descriptive research. The population in This research is all class X students at SMA Negeri 2 Kesuma Bangsa, while the sampling technique in this research is saturated sampling. Study This will be implemented in the odd semester of the 2023/2024 academic year. Data collection techniques are in the form of interviews, observations, questionnaires, and documentation. Data analysis determines the level of teacher readiness and student learning readiness in following the chemistry learning process by implementing STEM-based modules and calculating percentage values. The questionnaire then describes the results of the interviews and observations that have been carried out. The results showed that the class X chemistry teacher at SMA Negeri 2 Kesuma Bangsa is ready to teach by obtaining an average score of 95.49, included in the very good category; this is proven by the results of the interviews showing that teachers are capable of developing curriculum and competency standards graduates, and development of learning tools. Class X students' learning readiness in SMA Negeri 2 Kesuma Bangsa obtained an average score of 81.12, included in the very good category. This is proven by observation results, showing that students are ready based on physical, psychological, and material readiness indicators. It can be concluded that the readiness of chemistry teachers and class X students of SMA Negeri 2 Kesuma Bangsa are ready to implement STEM-based modules.
THE INFLUENCE OF THE PROJECT-BASED LEARNING MODEL ON STUDENT LEARNING OUTCOMES ON THE ACID-BASE CONCEPT (A Case study at Senior High School No. 2 Medan) Bangun, Prihatni Yoshepine; Eddiyanto, Eddiyanto; Munthe, Sitti Darna
Chimica Didactica Acta Vol 12, No 1: June 2024
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v12i1.33369

Abstract

The research aims to determine the effect of the project-based learning model on learning outcomes and students' responses to acid-base material. Based on observations and interviews with students and teachers, the background of this study is that chemistry education remains teacher-centered and lacks practical activities, partly due to the COVID-19 pandemic. It is hoped that this model will engage students more actively in the learning process and improve their learning outcomes. This experimental research employs a pretest-posttest control group design. The research samples were students from class XI IPA 2, who experienced the project-based learning model (experimental class), and class XI IPA 1, who followed the conventional model (control class). The instruments used in this study were tests to measure student learning outcomes and questionnaires to assess student responses to the implemented learning model. The normality test results showed a significant value of 7 for both the experimental and control classes at an alpha level of 0.05. The homogeneity test indicated a value of 1.08 at an alpha level of 0.05, suggesting the data are normally distributed and have homogeneous variance. The results of the right-sided t-test showed a significant value of 7.35, which is greater than the critical value of 1.669, indicating that t_count is greater than t_table, leading to the rejection of the null hypothesis (H0) and the acceptance of the alternative hypothesis (Ha).
PROCESSING AND CHARACTERIZATION OF OIL PALM LOOSE FRUITS AS A RAW MATERIAL FOR BIODIESEL Prihatiningtyas, Indah; Heryadi, Eko; Ramadhan, Ridho; Purnomo, Agus; Alfiyya, Alfiyya; Abdullah, Hilham
Chimica Didactica Acta Vol 12, No 1: June 2024
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v12i1.34955

Abstract

The main product of oil palm plantations is oil palm fresh fruit bunches, however there is oil palm loose fruits which is detached from the ripe fresh fruit bunch or found during the process of cutting at harvest. Biodiesel could be obtained by processing crude palm oil (CPO) with trans-esterification process, however CPO is an important source of food, especially for cooking oil. Biodiesel production as a source of new renewable energy increases, hence it could threat the food security programs. The oil palm loose fruits as an industrial waste were investigated for renewable energy sources to overcome the conflict between the renewable energy program and food security. This research found that oil palm loose fruits consisted about 55% of mesocarp (flesh of fruit) and around 45% of the seed. Increasing delay on processing of oil palm loose fruits led to decreasing of the oil, and processing delay for 12 days resulted in a significant reduction extract yield. Increasing processing delay reduced the iodine value and the study showed that oil palm loose fruits after 12 days have a high level of oil saturation and free fatty acid of CPO was 37%. Esterification followed by transesterification was conducted to synthesis biodiesel. The biodiesel was obtained with yield of 14.5%, and free fatty acid of 1.3%, while fatty acid methyl ester was achieved 70.24%. Hence, we could convert oil palm loose fruits into biodiesel as a strategy to meet the renewable energy requirement produced from non-food crops
THE DEVELOPMENT OF INNOVATIVE LEARNING MATERIAL WITH A PROJECT TO IMPROVE STUDENT'S CRITICAL THINKING SKILLS IN THE TEACHING OF REDOX TITRATION Silalahi, Gielf Justin Salisia Silrumson; Situmorang, Manihar
Chimica Didactica Acta Vol 12, No 1: June 2024
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v12i1.34956

Abstract

Self-directed learning has become popular in higher education worldwide in recent years. As a result, students may have difficulty understanding higher education standards. Therefore, innovative learning materials that are relevant and easy to understand by students and provide opportunities for developing student's character so that they are competent in developing their knowledge capacity independently through high-level thinking skills such as critical thinking. Through the research and development method using the ADDIE Model, teaching materials are created by integrating the PjBL learning model to measure product feasibility scores, students' critical thinking abilities, and know student responses and learning outcomes. Based on the validation results, the average value of the validation results obtained was 89% (valid). After testing the product, it was discovered that the student response was 87.68% (good), the average critical thinking ability score was 87.36, indicating an increase and the average learning outcomes obtained by students were from 56.80 to 87.38, indicating an increase. Overall, the integrated teaching materials for the PjBL learning model on Redox Titration material are suitable.

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