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Journal of Chemical Learning Innovation
Published by Cahaya Ilmu Cendekia Publisher
ISSN : 30631629     EISSN : 30630886     DOI : https://doi.org/10.37251/jocli
Core Subject : Science, Education, Social,
Chemistry Education Social Sciences Other
Journal of Chemical Learning Innovation is a double-blind peer-reviewed journal dedicated to disseminating advances in science and research in chemistry, both in Indonesia and in the global context of developing countries. Committed to achieving excellence, Jurnal Inovasi Pembelajaran Kimia publishes comprehensive research articles and invited reviews from leading experts in the fields of chemistry education and chemistry research. The selection criteria prioritize papers that demonstrate high scientific value, convey new knowledge, and have a significant impact on chemistry education and research. The journal focuses on evaluation, chemistry teaching and learning, pure chemistry research, EthnoChemistry, TIMSS Tasks, and related topics at the school and college levels.
Arjuna Subject : Umum - Umum
Articles 126 Documents
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Fostering Better Chemistry Learning Outcomes with the Cooperative Integrated Reading and Composition Learning Model Nur Mustofa; Indah Sri Wahyuni
Journal of Chemical Learning Innovation Vol. 2 No. 1 (2025): June
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v2i1.1966

Abstract

Purpose of the study: The purpose of this study was to improve the chemistry learning outcomes by implementing the cooperative learning model of the Cooperative Integrated Reading and Composition type. Methodology: The subjects in this study were 18 students of class X of LKMD Sukaramai Tapung Hulu Senior High School. While the object of this study is the application of the cooperative learning model of the Cooperative Integrated Reading and Composition type to improve the chemistry learning outcomes of class X students of LKMD Sukaramai Tapung Hulu Senior High School. Main Findings: Based on the research results, the implementation of cooperative learning strategies of the Cooperative Integrated Reading and Composition type in the learning process in class X of LKMD Sukaramai Tapung Hulu Senior High School increased student learning outcomes. From the analysis of data on the success of the action, it was found that there was an increase in the number of students who had scores above 65 after the action compared to the number of students who had scores above 65 before the action with a percentage of completion of 33.3%, and in the first daily test increased by 55.6%. While in the second daily test, all students (100%) obtained a minimum score or above 65. Novelty/Originality of this study: The novelty of this study is to determine the effectiveness of implementing the cooperative integrated reading and composition type of cooperative learning model to improve chemistry learning outcomes.
Engaging Minds: The Effectiveness of Illustrated Story Handouts in Teaching Chemical Bonding Rokhmayanti Rokhmayanti; Bahrul Fauzi
Journal of Chemical Learning Innovation Vol. 2 No. 1 (2025): June
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v2i1.1967

Abstract

Purpose of the study: This study aims to determine whether there is an increase in the motivation to learn chemistry of class X3 students of YLPI Marpoyan Senior High School, Bukit Raya District, Pekanbaru City through the use of handouts in the form of illustrated stories. Methodology: The instruments used in this study are observation and documentation. Observation is done to find out the development of teachers and students in the learning process. While documentation is done to obtain school data, teacher data, and also student data. Main Findings: Based on the results of data analysis, the percentage of student motivation before the action was 49.4%, cycle I 53.8%, cycle II 60.9%, and cycle III 76.4%, which increased at each meeting, so it can be concluded that the use of handouts in the form of illustrated stories can increase student learning motivation. Novelty/Originality of this study: The novelty of this study is to determine the effectiveness of using handouts in the form of illustrated stories to increase students' learning motivation on the topic of chemical bonds.
How Occupational Health and Safety Affects Employee Productivity and Work Quality Multazam Multazam
Journal of Chemical Learning Innovation Vol. 2 No. 1 (2025): June
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v2i1.1972

Abstract

Purpose of the study: This study aims to identify how much influence employee health and safety has on employee performance. Methodology: Sampling in this study used 96 respondents, the data collection technique was through questionnaires distributed to respondents, and the research variables were Health (X1), Safety (X2), Performance (Y). This study used descriptive analysis with a quantitative approach, and to test the level of reliability using Cronbach Alpha and then the data was processed with Multiple Linear Regression Analysis. Hypothesis testing used the F Test and t Test with a significance level of 10%. Researchers used SPSS Version 17. Main Findings: From the results of multiple linear regression analysis shows that employee performance is influenced by health variables and work safety variables. The determination results (R2) use the adjusted r square value, because it uses regression with more than one dependent variable, which is 0.685, which means that health variables and work safety variables are able to explain employee performance by 69% while the remaining 31% is influenced by other variables not studied. From the results of the F test and t test calculations, it can be seen that health variables and work safety variables together affect employee performance and the most dominant variable is the work safety variable. Novelty/Originality of this study: This study presents a new perspective by evaluating the effectiveness of employee participation-based K3 implementation as a mediating variable that has not been widely researched in relation to increasing individual productivity and performance in industrial sector organizations.
Occupational Safety in Action: Assessing the Implementation and Impact of Safety and Health Management Systems Prasetyo Soleh D
Journal of Chemical Learning Innovation Vol. 2 No. 1 (2025): June
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v2i1.1973

Abstract

Purpose of the study: The aim of this research is to determine the counseling, implementation, supervision, and supporting facilities for the Occupational Safety and Health management system. Methodology: The study population was all 2,341 students of State Vocational High School 3 Yogyakarta. The sample size was 342 students, determined using the Slovin formula. Random sampling was used. Data collection was conducted using a questionnaire. Validity was determined using expert judgment, while reliability was determined using the Cronbach's alpha formula. Main Findings: The results of the study showed that: Extension with a score of 67 (quite good), implementation 74 (good), supervision 69 (quite good), facilities 76 (good), culture 78 (very good). Novelty/Originality of this study: It can be used as self-evaluation material in following the teaching and learning process and as input that it is important to prioritize the correct implementation of Occupational Safety and Health in students.
Atomic Absorption Spectrophotometry-Based Evaluation of Iron and Chromium in Community Water Sources Suci Apriani
Journal of Chemical Learning Innovation Vol. 2 No. 1 (2025): June
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v2i1.1978

Abstract

Purpose of the study: To determine the presence of heavy metal content, especially iron (Fe) and chromium (Cr) in artesian water wells and residents in Rejo Sari Village.. Methodology: In determining pH, pH meter and universal indicator paper were used. The pH values ​​obtained were 6.5; 6.4; 5.9; 7.4; 6.5 and 7.5. Determination of iron (Fe) and chromium (Cr) content was carried out using the Atomic Absorption Spectrophotometry (AAS) method. Main Findings: The results of the study showed that the concentrations of iron (Fe) were 1.9615 ppm, 0.4692 ppm, 0.4692 ppm, 0.4461 ppm, 1.5615 ppm, and 0.2769 ppm, respectively. One sample with chromium (Cr) concentration was detected at 0.06 ppm. Novelty/Originality of this study: This study presents a novel contribution by comparing the heavy metals Fe and Cr content in two types of well water sources—artesian wells and ring wells—specifically in a densely populated residential area, using an AAS-based quantitative analysis approach rarely applied simultaneously to both metals in a local context. This study also emphasizes the significance of spatial and environmental quality on heavy metal contamination, which has not been widely addressed in similar studies in the region.
Effectiveness of Phosphorus and Nitrogen Removal in the Water Treatment Process at Khmer Beverages, Phnom Penh Mardy Serey; Sreypov Chhorn; Chinda Chhe
Journal of Chemical Learning Innovation Vol. 2 No. 2 (2025): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v2i2.2249

Abstract

Purpose of the study: The aim of this study is to understand the process of water treatment in each step and to understand the effectiveness of the removal of phosphorus and nitrogen from wastewater. Methodology: For nitrogen removal must be through many processes such as Nitrogen fixation, or Ammonification, and Denitrification. For the phosphorus. The additional Ferric Chloride in the Aeration tanks to a reaction between the melt and the mud bolts is separated at the Clarifier tank. The Coagulation basin adds Ferric Chloride at 40% concentration of 0.05ml in contaminated water 1000ml for nitrogen and phosphorus concentration tests and studied in the condition the nitrogen can be removed from contaminated water well depending on the pH value and temperature. The removal of phosphorus by adding 0.05ml ferric chloride and 5ml of polymer cation 1040 (powder) can tank up to 80% phosphorus at the temperature of 200C and pH 7. Main Findings: As a result, the good conditions for nitrification are the pH of between 7.5 and 8.6 at temperature in the tank between 200C and 250C and the denitrification has a pH of between 7.5 and 8 and temperature in the tank from 200C to 350C. Result show that the remaining phosphorus is below the ministry of environment standard set (P <2mg/l). Novelty/Originality of this study: The next study should observe the amount of polymer to be applied after adding iron and studying the speed of iron chips as it affects the removal of phosphorus.

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