Jurnal Pendidikan Kimia最新文献_第6页

The influence of guided inquiry learning models on science process skills and student learning outcomes on chemical equilibrium material 引导性探究学习模式对科学过程技能和学生化学平衡材料学习成果的影响

Jurnal Pendidikan Kimia Pub Date : 2022-08-15 DOI: 10.24114/jpkim.v14i2.34553

A. Juniar, Indra Amparodman Sianipar

{"title":"The influence of guided inquiry learning models on science process skills and student learning outcomes on chemical equilibrium material","authors":"A. Juniar, Indra Amparodman Sianipar","doi":"10.24114/jpkim.v14i2.34553","DOIUrl":"https://doi.org/10.24114/jpkim.v14i2.34553","url":null,"abstract":"This study aims to determine the effect of the guided inquiry model on improving science process skills and learning outcomes of its correlation in chemistry. This research was conducted at SMA Negeri 1 Siantar Narumonda. The sample in this study consisted of two classes, each of which consisted of 30 students who were taught using guided and conventional inquiry learning models. The instruments used were multiple choice tests (Learning Outcomes), essay tests (Science Process Skills), student worksheets, and observation sheets on the implementation of science process skills. The results of the analysis obtained that the average gain of student learning outcomes who were taught using the guided inquiry learning model (0.789) was different from the conventional model (0.698) and the average gain of science process skills using the guided inquiry model (0.858) was different from the use of conventional learning models (0.789). Hypothesis testing using a two-party t-test for student learning outcomes and science process skills was obtained at 4.465 > 2.00172 and 7.051 > 2.0172. Thus, it was found that there was an influence of the guided inquiry learning model on student learning outcomes and science process skills. The correlation test showed that there was a correlation between learning outcomes and students' science process skills with an r count of 0.525 > 0.361 with a contribution of 27%.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73521374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Isolation of secondary metabolite compounds of Coffee Benalu leaves (Loranthus parasiticus (L.) Merr.) and its antibacterial activity test 咖啡叶次生代谢物的分离)及其抑菌活性试验

Jurnal Pendidikan Kimia Pub Date : 2022-08-15 DOI: 10.24114/jpkim.v14i2.33706

D. Roza, Nova Betria Sinaga, Christesya Ambarita

{"title":"Isolation of secondary metabolite compounds of Coffee Benalu leaves (Loranthus parasiticus (L.) Merr.) and its antibacterial activity test","authors":"D. Roza, Nova Betria Sinaga, Christesya Ambarita","doi":"10.24114/jpkim.v14i2.33706","DOIUrl":"https://doi.org/10.24114/jpkim.v14i2.33706","url":null,"abstract":"Coffee parasite leaves (Loranthus parasiticus (L.) Merr) is one of the plants that can be used as a medicinal material commonly obtained in various subtropical regions or tropical regions. This study aims to isolation of secondary metabolite compounds from methanol extract of coffee leaves and antibacterial activity by of disc diffusion and microdilution methods against S. aureus bacteria, S. mutans, and S. viridians. The result of antibacterial activity against S. aureus bacteria, S. mutans, and S. viridians respectively is 7.5 mm; 7.9 mm; and 8 mm which indicates that the ability to inhibit the growth of methanol extract bacteria 1% coffee leaves belongs to the medium category. The results of the microdilution method in determining the value of KHM against bacteria S. Aureus, S. Mutans, and S. Viridians are equal to the KHM value of 5000 μg/mL. Meanwhile, the MBC value for S. aureus was >5000 g/Ml, for S. mutans was >5000 g/mL and for S. viridians it was 5000 g/mL, indicating that the methanol extract of the coffee parasite leaves was only an inhibitor. Isolation of secondary metabolite compounds is carried out by fractionation using Liquid Vacuum Chromatography and Gravitational Column Chromatography which are further characterized using the GC-MS instrument. The results of the isolation of secondary metabolites from the methanol extract of the leaves of the coffee parasite (Loranthus parasiticus (L.) Merr.) showed that the leaves of the coffee parasite contained any 9 compounds.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90097927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of module based introduction, connection, application, reflection, extention (icare) on ion balance and pH of salt solution class xi sma/ma 基于介绍、连接、应用、反思、推广(icare)模块的xi sma/ma盐溶液离子平衡与pH的开发

Jurnal Pendidikan Kimia Pub Date : 2022-08-15 DOI: 10.24114/jpkim.v14i2.34928

R. U. Rery, S. Haryati, Intan Shanderi

{"title":"Development of module based introduction, connection, application, reflection, extention (icare) on ion balance and pH of salt solution class xi sma/ma","authors":"R. U. Rery, S. Haryati, Intan Shanderi","doi":"10.24114/jpkim.v14i2.34928","DOIUrl":"https://doi.org/10.24114/jpkim.v14i2.34928","url":null,"abstract":"The development of a ICARE-based Module on the material of ion balance and pH of salt solution aims to develop a valid module and determine user responses in learning. The research method used is the research and development (R&D) method by applying a 4-D development model which includes Define, Design, Develop and Disseminate, pandemic conditions cause research to only be carried out until the Develop stage which was followed by one-on-one trials, teacher trials, and limited trials. The data collection tools used are validity sheets and user response questionnaires. The data analysis technique used is to calculate the results of the validation percentage score and user response. The results of the study explain that the ICARE-module developed has been categorized as \"valid\" according to 3 material validators and based on the feasibility of content, ICARE characteristics, language, graphics and respectively were 93.93%, 100%, 95.2%, 95% and 100%. The results of the user response test for three teacher and 20 students were categorized as “very good”. The percentage of user response scored based teacher and student response questionnaires were 93.33% and 90.12% respectively.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75355958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development of electronic activity sheet based preview, question, read, reflect, recite, review (pq4r) learning strategy on ion balance and pH of buffer solution 开发基于预习、提问、阅读、反思、背诵、复习(pq4r)的离子平衡和缓冲溶液pH学习策略的电子活动表

Jurnal Pendidikan Kimia Pub Date : 2022-08-15 DOI: 10.24114/jpkim.v14i2.34639

R. Rery, Erviyenni Erviyenni, Muhammad Agus Hardiyansyah

{"title":"Development of electronic activity sheet based preview, question, read, reflect, recite, review (pq4r) learning strategy on ion balance and pH of buffer solution","authors":"R. Rery, Erviyenni Erviyenni, Muhammad Agus Hardiyansyah","doi":"10.24114/jpkim.v14i2.34639","DOIUrl":"https://doi.org/10.24114/jpkim.v14i2.34639","url":null,"abstract":"The development of a PQ4R-based electronic activity sheet on the material of ion balance and pH of the buffer solution aims to develop a valid electronic activity sheet and determine user responses in learning. The research method used is the research and development (R&D) method by applying a 4-D development model which includes Define, Design, Develop and Disseminate. Pandemic conditions cause research to only be carried out until the Develop stage which was followed by one-on-one trials, teacher trials, and limited trials. The data collection tools used were validity sheets and user response questionnaires. The data analysis technique used is to calculate the results of the validation percentage score and user response. The results of the study explain that the PQ4R-based electronic activity sheet developed has been categorized as \"valid\" according to 2 material validation experts and 2 media validation experts based on the feasibility of content, PQ4R characteristics, language, presentation, display, and software utilization with average scores are 100%, 96.42%, 97.5%, 87.5%, 99%, and 98.21%. One-on-one trials were carried out on 3 students with different abilities to get comments that were used as improvements to the electronic activity sheet. The results of the user response test for 3 teachers and 20 students were categorized as \"very good\" with scores of 92.59% and 84.87%, respectively.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84467067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the thermal properties of the grafted product of maleic anhydride onto clylized natural rubber by using thermogravimetric method 用热重法研究马来酸酐接枝天然橡胶的热性能

Jurnal Pendidikan Kimia Pub Date : 2022-04-30 DOI: 10.24114/jpkim.v14i1.31799

M. Siregar, Dian Arsita Fitri, Muhammad Iqbal Nusa, D. Ardilla, Masyura M.D, A. Nasution, E. Eddiyanto

引用次数: 0

The influence of the LSLC-based GIL learning model on the material of electrolysis cells on the learning outcomes of class XII students of SMA N 5 Padang 基于lslc的电解池材料GIL学习模式对巴东中学十二班学生学习效果的影响

Jurnal Pendidikan Kimia Pub Date : 2022-04-30 DOI: 10.24114/jpkim.v14i1.33764

Rahil Ramadani, A. Andromeda, Yemmi Suriati

{"title":"The influence of the LSLC-based GIL learning model on the material of electrolysis cells on the learning outcomes of class XII students of SMA N 5 Padang","authors":"Rahil Ramadani, A. Andromeda, Yemmi Suriati","doi":"10.24114/jpkim.v14i1.33764","DOIUrl":"https://doi.org/10.24114/jpkim.v14i1.33764","url":null,"abstract":"This research is motivated by the not optimal learning model used by educators. To overcome this problem, a Lesson Study for Learning Community (LSLC) is implemented, there are 3 stages (Plan, Do and See) in one cycle. The role of the observer in the LSLC will have an impact on increasing the competence of educators, which will affect the learning process and increase student learning outcomes. The purpose of the study was to determine the effect of the LSLC-based Guided Inquiry Learning Model on the Electrolysis Cell material on the learning outcomes of class XII students of SMA N 5 Padang. The type of research is Quasi Experiment with Pretest-Posttest Control Group Design. The study population was class XII students of SMA N 5 Padang and samples of class XII MIPA 1 and XII MIPA 3. Data were analyzed using the N-gain test, normality test, homogeneity test, and hypothesis testing (t-test). Based on the results of the study, the influence of the LSLC-based Guided Inquiry Learning (GIL) learning model, the results of the N-gain value analysis (g = 0.63) stated that the LSLC-based GIL learning model had moderate criteria. This shows that the LSLC-based GIL learning model is effective in improving student learning outcomes. This is evidenced by the increase in learning outcomes by 32.97%, the sample data is normally distributed, the two research samples are homogeneous, the hypothesis test is obtained tcount (2.04) and ttable (1.994), it can be concluded that Ho is rejected because tcount is greater than ttable.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85561524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of the needs of teachers and students on the inquiry-flipped classroom model in chemistry lessons 化学课堂探究性翻转课堂模式的师生需求分析

Jurnal Pendidikan Kimia Pub Date : 2022-04-30 DOI: 10.24114/jpkim.v14i1.33306

Suci Desmarani, M. Rusdi, H. Haryanto, Sugeng Triwahyudi

{"title":"Analysis of the needs of teachers and students on the inquiry-flipped classroom model in chemistry lessons","authors":"Suci Desmarani, M. Rusdi, H. Haryanto, Sugeng Triwahyudi","doi":"10.24114/jpkim.v14i1.33306","DOIUrl":"https://doi.org/10.24114/jpkim.v14i1.33306","url":null,"abstract":"This study was conducted with the aim of looking at how the general description of student characteristics, material analysis, infrastructure, and problems in chemistry learning were used to support research on the use of inquiry based - flipped classroom E-LKPD in order to maximize the teacher's efforts to improve creative and self -thinking skills student efficacy. This research is a quantitative descriptive analysis research. data collection using interview and observation techniques. Interviews were conducted with teachers of chemistry subjects. The sample of students was taken by random sampling. The research subjects were 47 state high school students in Jambi City. The results showed that 78.7% of students had difficulty understanding chemistry lessons, and 61.7% of students had difficulty understanding chemical concepts, and 51.1% of students had difficulty understanding chemistry questions. The results of the study also said that 97.9% of students needed learning multimedia (e-LKPD). Based on the results of the study, it can be concluded that the inquiry-flipped Classroom model assisted by e-LKPD can be used as a solution to meet the needs of students and teachers, because this learning model is oriented towards student activity and uses technology in the learning process.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82064057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of e-module based on local wisdom to improve science literacy and reading literacy 开发基于地方智慧的电子模块，提高科学素养和阅读素养

Jurnal Pendidikan Kimia Pub Date : 2022-04-30 DOI: 10.24114/jpkim.v14i1.32948

Legian Setyorini, S. Haryani, E. Susilaningsih

{"title":"Development of e-module based on local wisdom to improve science literacy and reading literacy","authors":"Legian Setyorini, S. Haryani, E. Susilaningsih","doi":"10.24114/jpkim.v14i1.32948","DOIUrl":"https://doi.org/10.24114/jpkim.v14i1.32948","url":null,"abstract":"This research is motivated by (1) the results of reading literacy and science literacy in PISA, which is still low, and (2) technology and cultural-based learning media have not been developed by private high school chemistry teachers in Semarang. This research aims to develop a feasible E-module based on the local wisdom of spice drinks that can improve reading literacy and learners' science literacy. This research is a research and development with a 3-D model, which includes defining, designing, and developing. This study collects data through observation, questionnaires, and testing. The research instruments used are material expert validation sheets, multimedia expert validation, observation sheets, and instruments about reasoned multiple choice. The study subject was eight students of XI MIPA Kebon Dalem high school. Expert validation results of the material showed 92.85% (very valid). The validation results of media experts showed 85.71% (valid). E-modules are declared effective because there is an increase in the completion of learners' learning outcomes after using E-modules. E-Module based on local wisdom of spice drinks can visualize the factors that affect the rate of reaction material. So, it can be concluded that E-modules based on local wisdom spice drinks developed are worth using to improve learners' reading and science literacy.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"53 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72622487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of chemic media (chemistry comic) based on problem based learning on chemical bond materials for class x students x班学生基于化学键材料问题式学习的化学媒介(化学漫画)开发

Jurnal Pendidikan Kimia Pub Date : 2022-04-30 DOI: 10.24114/jpkim.v14i1.32112

Selly Aprilia Nisa, Meli Sartika Silaban, S. Silaban

{"title":"Development of chemic media (chemistry comic) based on problem based learning on chemical bond materials for class x students","authors":"Selly Aprilia Nisa, Meli Sartika Silaban, S. Silaban","doi":"10.24114/jpkim.v14i1.32112","DOIUrl":"https://doi.org/10.24114/jpkim.v14i1.32112","url":null,"abstract":"This research is a development research that aims to determine the feasibility of chemic media based on problem based learning on chemical bonding material for class X students based on BSNP standards. In this research, a modified ADDIE development model was used where only the analysis, design, development and evaluation stages were carried out. This research will be conducted at the Department of Chemistry State University of Medan, SMAN 1 Secanggang and SMAS Bintang Langkat. The feasibility of the media is seen through a feasibility questionnaire based on the BSNP standard with a Likert scale of 1 to 5. The validity of the chemic media is obtained from the results of the validation of lecturers and teachers, while the respondents' assessment of chemic media is obtained from the results of the assessments of teachers, students, and students. The results obtained indicate that the chemical media developed is valid or feasible to use. This can be seen from the validation data in terms of content, presentation feasibility, language feasibility, graphic feasibility and problem based learning assessment, respectively, obtaining a percentage of 80.83%; 82.50%; 94.38%; 82.19% and 82.14% so that an average percentage of 82.00% is obtained which is included in the very high category. The results of respondents' assessments of chemic media were reviewed based on aspects of appearance, material and benefits which respectively obtained a percentage of 88.96%; 86.73%; and 86.67% with an average percentage of 87.6% which is included in the very high category.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72894258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development of higher order thinking skill (HOTS) assessment instrument for salt hydrolysis 盐水解高阶思维技能(HOTS)评估工具的开发

Jurnal Pendidikan Kimia Pub Date : 2022-04-30 DOI: 10.24114/jpkim.v14i1.31382

Alfi Rizkina Lubis, A. Sudrajat, A. Nugraha

引用次数: 0