JTK (Jurnal Tadris Kimiya)
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Contextual Teaching and Learning Interactive Media in Redox Reaction Concept for Improving Critical Thinking and Self-efficacy
Get PDFMany students find redox reactions challenging due to educators focusing solely on imparting knowledge without real-world connections. This approach limits critical thinking and reduces students' self-efficacy. To address these issues, fostering creativity and developing interactive learning materials are essential solutions. This research aims to create contextual teaching and learning (CTL) based interactive learning media for redox reactions. This media focuses on validity, practicality, and effectiveness in enhancing students' critical thinking skills and self-efficacy. The research framework employed in this study follows a research and development method with an analysis, design, development, implementation, and evaluation (ADDIE) model, with a research subject of 31 students. The results showed that interactive learning media was declared valid by media experts and material experts with an average score of 92.50% (high validity category). Media is very practical based on readability tests, students' responses, teachers' responses and observation sheets average percentage of 85.92%. It is also proven to increase critical thinking skills in high effective category (N-gain 0.81), and increase self-efficacy in moderate category (N-gain 0.65)
Development of General Chemistry Teaching Materials Using the PjBL-STEM Model to Enhance Students' Creative Thinking Skills
Get PDFThinking creatively is a crucial higher-order skill that students must acquire when they graduate from university. This necessitates lecturers designing and developing learning processes that actively engage students while fostering their creative thinking abilities. This study aims to develop and validate general chemistry teaching materials on organic compounds and reactions using the PjBL-STEM model and evaluate their effectiveness in improving students' creative thinking skills. The study employed the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) model. The teaching materials were designed as comprehensive books that adhered to the PjBL-STEM framework. Effectiveness was measured by analyzing improvements in students’ creative thinking abilities through quantitative testing. The results demonstrate that the PjBL-STEM-based teaching materials are valid and feasible for implementation. Their effectiveness in enhancing students' creative thinking abilities was statistically significant (t-count = 32.488; p = 0.000), with an average improvement of 42.725 ± 8.317. The development of PjBL-STEM-based teaching materials offers a valuable tool for chemistry education, effectively promoting creative thinking skills among students. This approach provides a practical framework for lecturers to design innovative, student-centered learning strategies
Fostering Environmental Knowledge and Literacy with Natural Products Experiment Activity Worksheets
Get PDFThis research aims to improve student environmental knowledge and literacy with natural products experiment activity worksheets. The methods used in this research are pre-experimental. The subjects of this research are 15 students from an Islamic high school. The research results show that natural products experiment activity worksheets effectively improve students' learning outcomes. The research results indicate that the pre-test results obtained an average score of 50.8, indicating that students needed help understanding the material before using natural products' experiment activity worksheets. Post-test results showed an average score of 80.5, indicating that students experienced increased learning outcome scores. The average normalized gain score is 0.59, indicating a medium increase in chemistry learning outcomes. The self-assessment questionnaire on environmental literacy, conducted after using the integrated natural products experiment activity worksheets, showed that knowledge had an average score of 4.33 and was rated as excellent, behavior had an average score of 4.31 and was rated as good, and attitude had an average score of 4.37 and was also rated as good. Overall, students' environmental literacy was rated as outstanding, with an average score of 86.74%
Designing a Thermochemistry E-Module Based on the Trait Treatment Interaction Educational Model for Madrasah Aliyah Students
Get PDFPlanning and carrying out investigations (PCOI) among students are still low, and teachers pay less attention to differences in the abilities of each student, so they have not achieved optimal results. This research aims to develop of a chemistry e-module using the trait treatment interaction (TTI) model to increase valid, practical, and effective's PCOI capabilities. TTI is considered an ideal learning model because it can accommodate and value individual differences among students. The research framework employed in this study follows a research and development method with a define, design, development, and disseminate (4D) model. The results indicate that the high validity level achieved an average score of 84.3% in terms of materials, language, and media aspects. The practicality test of the products also received an average score of 86.2%. The product's effectiveness is categorized as very effective, with students' test results averaging 82.3%. The e-module is deemed valid, practical, and effective in enhancing PCOI capabilities
Design of Innovative Non-Routine Learning Strategies in Chemistry Learning
Get PDFTraditional teaching methods in chemistry have been insufficient in helping students master problem-solving and conceptual understanding across the three levels of chemical representation: macroscopic, submicroscopic, and symbolic. Innovative strategies are needed to address these challenges and improve learning outcomes. This study evaluates the feasibility, practicality, and effectiveness of a non-routine learning strategy as an innovative approach to teaching chemistry. The research adopts the Gall and Gall Research and Development (R&D) model with a 3D design framework (Define, Design, Develop). The study involved chemistry education students from UIN Ar-Raniry Banda Aceh and UIN Sultan Syarif Kasim Riau. Data collection instruments included validation sheets to assess feasibility, observation sheets for practicality and effectiveness, as well as tests and related documents. The findings demonstrate that the non-routine learning strategy is valid, practical, and effective. It significantly enhances students' ability to solve problems and explain chemical concepts using the macroscopic, submicroscopic, and symbolic levels of representation. This non-routine learning strategy represents a feasible and effective innovation in chemistry education, providing a practical tool for improving students’ problem-solving skills and conceptual understanding. Its implementation offers valuable insights for advancing chemistry teaching practices
Assessing the Effectiveness of Case-Based Learning on Students' Attitudes Toward Chemistry and Formal Reasoning in Acid-Base Topics
Get PDFEffective teaching strategies are critical in enhancing students' attitudes toward chemistry and formal reasoning abilities, particularly for complex topics like acids and bases. Case-based learning has emerged as a promising alternative to traditional scientific learning methods. This study aims to compare the differences in attitudes toward chemistry and formal reasoning skills between students exposed to case-based learning and those undergoing scientific learning on acids and bases. A quasi-experimental design with a posttest-only control group was applied to 122 student of 11th grade science students in Yogyakarta, selected using simple random sampling. Data were collected through case-based essay questions and attitude questionnaires. Multivariate analysis (Hotelling Trace) assessed the differences between groups. The analysis revealed a significant difference (p = 0.000 < 0.05) in attitudes and formal reasoning skills between the two groups. Students in the case-based learning group demonstrated significantly better attitudes toward chemistry compared to those in the scientific learning group. These findings highlight the potential of case-based learning to enhance students’ engagement and reasoning skills in chemistry. By integrating case-based approaches into acid-base learning, teachers can adopt alternative methods to improve student outcomes. This study underscores the importance of diversifying teaching strategies to address the challenges of complex scientific topics effectively
Enhancing 21st Century Skills in Students with Special Needs Through STEM Learning
Get PDFSTEM learning has been recognized for its potential to improve critical, creative, collaborative, and communicative skills—key components of 21st-century competencies. For students with special needs, STEM-based approaches can offer tailored opportunities to develop these skills through active and interactive learning methods. This study aims to identify patterns of STEM learning implementation that contribute to the development of 21st-century skills in students with special needs. A descriptive qualitative approach was employed, involving data collection from Giwangan State Elementary School in Yogyakarta. Respondents included a teacher and a special assistant teacher for the 4th grade. Data collection techniques consisted of field observations, semi-structured interviews with 18-27 questions, and document analysis. The data were analyzed using qualitative content analysis, including reduction, presentation, and conclusion drawing, while validity was ensured through source triangulation. The findings reveal that STEM learning is conducted in three stages: introductory, main, and closing phases. This method engages students with special needs in problem-solving and group projects integrating science, technology, engineering, and mathematics. The observed activities enhanced students' motivation, interest in learning, and the development of critical thinking, collaboration, and communication skills. The study highlights the effectiveness of STEM learning in fostering 21st-century skills among students with special needs, offering an inclusive and interactive framework for educators to implement in similar contexts
Interactive Digital Lessons for Alkaline Group Elements via Articulate Storyline 3
Get PDFIn chemistry subjects, one of the things studied is alkaline elemental chemistry. Learning elemental chemistry is not only memorization but requires a thought process to understand it, so learning media is needed. Articulate Storyline 3 is an intuitive program equipped with robust features for developing educational media. Its user-friendly design, similar to PowerPoint, and allows teachers to easily create engaging learning materials. The research aims to produce interactive learning media that were suitable for use in alkaline group elemental materials using articulate storyline 3. The development of this media used a define, design, develop, and disseminate (4-D) model. The learning media was validated by two experts and tested for readability with 12th-grade students. The development research results showed high feasibility, with material experts rating it at 86%, media experts at 84%, and student readability at 85%. Thus, the development of this learning media had met the high feasibility of use.Â
Development of Standard Assessment for Understanding Green Chemistry Principles Based on Unity of Science
Get PDFUnderstanding green chemistry is a crucial aspect for chemistry teacher graduates, as it equips them with the knowledge and skills to promote sustainable practices, minimize environmental impact, and inspire the next generation of students to engage in eco-friendly scientific innovation. This research is dedicated to developing a standard assessment for understanding Green Chemistry based on the Unity of Science (UoS), which is grouped into three categories: reagents, reaction processes, and reaction products. The research uses a mixed methods design with a triangulation model. A significant part of the research process is the validation of the feasibility of the instrument developed, which was done by five chemical experts. The multi-rater responses obtained were then analyzed using the feasibility criteria of the processed Rasch results. In the trial process, 40 students from the Chemistry Education program were selected as research subjects. The results showed that the reliability of the questions was 0.87, with an item separation level of 2.54. This reliability value of 0.87 indicates that the developed questions are of excellent quality and can be used as a standard for measuring understanding of Green Chemistry based on Unity of Science
Inquiry-Based E-Module with an Ethno-STEM Approach to Develop Sustainable Environmental Literacy Skills
Get PDFEnvironmental literacy is one of the keys to support the success of sustainable development goals (SDGs). This research aims to develop an inquiry e-module with an ethno-STEM approach to the concept of volatile aromatic compounds. The research subjects involved 46 students in the chemistry education study program who took the course on organic chemistry of natural substances. Data collection was carried out using an environmental literacy questionnaire covering four domains (knowledge, cognitive skills, attitudes and behavior). The results showed that the validity of e-modules in terms of material and media was 82.5% and 93.25%, respectively, which were categorized as very valid. The results of the environmental literacy test indicate that the average scores for knowledge, attitude, cognitive skills, and behavior were 45.91, 46.46, 51.32, and 53.24. All four domains fall within the high category. The inquiry e-module with an ethno-STEM approach is very suitable for developing environmental literacy skills