Pub Date : 2023-12-08DOI: 10.24114/jpkim.v15i3.47646
Mirwa Adiprahara Anggarani, Dzikra Nasyaya Mahfudhah, Soesilowati Soesilowati, Avissa Auryn Wijayanti, Syananda Zahra Fadila, N. Herdyastuti, Muhammad Nurrohman Sidiq
This study was conducted to evaluate laboratory management during biochemistry practicum activities and to build laboratory information for the internal and external community of Universitas Negeri Surabaya (Unesa) in 2023 through several aspects, namely infrastructure, tools, materials, and PLP/laboratory services. A descriptive-qualitative approach is used with a questionnaire for all biochemistry practitioners. The result shows that all aspects of biochemistry practicum activities obtain percentages sequentially of 89%, 90%, 93%, and 90%, which are included in the excellent category, so it can be concluded that all practitioners are highly satisfied with laboratory services during practicum. However, improvements to the deficiencies still need to be made so that the following practicum activities run better and optimally.
{"title":"The evaluation of biochemistry practicum based on several parameters of laboratory services in chemistry department Universitas Negeri Surabaya during the even semester","authors":"Mirwa Adiprahara Anggarani, Dzikra Nasyaya Mahfudhah, Soesilowati Soesilowati, Avissa Auryn Wijayanti, Syananda Zahra Fadila, N. Herdyastuti, Muhammad Nurrohman Sidiq","doi":"10.24114/jpkim.v15i3.47646","DOIUrl":"https://doi.org/10.24114/jpkim.v15i3.47646","url":null,"abstract":"This study was conducted to evaluate laboratory management during biochemistry practicum activities and to build laboratory information for the internal and external community of Universitas Negeri Surabaya (Unesa) in 2023 through several aspects, namely infrastructure, tools, materials, and PLP/laboratory services. A descriptive-qualitative approach is used with a questionnaire for all biochemistry practitioners. The result shows that all aspects of biochemistry practicum activities obtain percentages sequentially of 89%, 90%, 93%, and 90%, which are included in the excellent category, so it can be concluded that all practitioners are highly satisfied with laboratory services during practicum. However, improvements to the deficiencies still need to be made so that the following practicum activities run better and optimally.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"171 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139010689","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}
Pub Date : 2023-12-08DOI: 10.24114/jpkim.v15i3.50780
Anna Juniar, Siti Rahmah, Tua Paimaon Tambunan, Pravil M Tambunan
This research to develop an IBL-based electronic e-module integrated with the OBE curriculum in analytical chemistry learning. This research is a development research using the ADDIE model which consists of 5 stages: Analysis. Design, Development, Implementation and Evaluation. The sampling technique uses purposive sampling as many as 28 preservice chemistry teachers. Research data were obtained from a validation questionnaire for media experts, material experts, linguists and student responses to the developed e-module with BSNP criteria. Material expert validation obtained an average content feasibility of 3.22, language eligibility 3.52 and presentation feasibility 3.73 IT expert validation obtained an average for design indicators 3.75, display 3.75 and visual 3.3 and usage 3.75. Student response to learning using an electronic IBL-based e-module integrated with the OBE curriculum for display is 89.99%, content quality is 92.85%, usage is 93.3% and usefulness is 93.15%. Implementation of interactive e-module products based on inquiry based learning in learning that can improve student chemistry learning outcomes in the Analytical Chemistry course with Gain 81.20.
{"title":"Development of interactive teaching materials based on inquiry based learning models based on the outcome-based education curriculum in analytical chemistry learning","authors":"Anna Juniar, Siti Rahmah, Tua Paimaon Tambunan, Pravil M Tambunan","doi":"10.24114/jpkim.v15i3.50780","DOIUrl":"https://doi.org/10.24114/jpkim.v15i3.50780","url":null,"abstract":"This research to develop an IBL-based electronic e-module integrated with the OBE curriculum in analytical chemistry learning. This research is a development research using the ADDIE model which consists of 5 stages: Analysis. Design, Development, Implementation and Evaluation. The sampling technique uses purposive sampling as many as 28 preservice chemistry teachers. Research data were obtained from a validation questionnaire for media experts, material experts, linguists and student responses to the developed e-module with BSNP criteria. Material expert validation obtained an average content feasibility of 3.22, language eligibility 3.52 and presentation feasibility 3.73 IT expert validation obtained an average for design indicators 3.75, display 3.75 and visual 3.3 and usage 3.75. Student response to learning using an electronic IBL-based e-module integrated with the OBE curriculum for display is 89.99%, content quality is 92.85%, usage is 93.3% and usefulness is 93.15%. Implementation of interactive e-module products based on inquiry based learning in learning that can improve student chemistry learning outcomes in the Analytical Chemistry course with Gain 81.20.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"91 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139011128","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}
Pub Date : 2023-12-08DOI: 10.24114/jpkim.v15i3.49819
Tiurlina Siregar
Module development is very important in chemistry learning. The lack of modules as teaching materials is an obstacle in learning chemistry, especially the reaction rate material. Therefore this study aims to develop and validate the feasibility of the chemistry module on the reaction rate material through a scientific approach, as well as to assess how students and teachers respond to the product being developed. The research and development (R&D) method is the method used and ADDIE is the development model applied as the methodology. The sample in this study was 15 students. The sampling technique is saturated samples. Modules are validated by material and media validators and then validated by teachers and asked for responses from students. Data is processed using SPPS Reaction rate as the subject of this research. The developed module is very feasible to be applied in chemistry learning on reaction rate material, according to the results of the data analyzed. The material validator gave an average score of 91.77% (very feasible), the media validator 90.48% (very feasible) and the teacher's response was 99.07% (very good) and the students' response to the developed module was 97.50% (Very good).
{"title":"Development of a reaction rate of chemistry module through a scientific approach to science","authors":"Tiurlina Siregar","doi":"10.24114/jpkim.v15i3.49819","DOIUrl":"https://doi.org/10.24114/jpkim.v15i3.49819","url":null,"abstract":"Module development is very important in chemistry learning. The lack of modules as teaching materials is an obstacle in learning chemistry, especially the reaction rate material. Therefore this study aims to develop and validate the feasibility of the chemistry module on the reaction rate material through a scientific approach, as well as to assess how students and teachers respond to the product being developed. The research and development (R&D) method is the method used and ADDIE is the development model applied as the methodology. The sample in this study was 15 students. The sampling technique is saturated samples. Modules are validated by material and media validators and then validated by teachers and asked for responses from students. Data is processed using SPPS Reaction rate as the subject of this research. The developed module is very feasible to be applied in chemistry learning on reaction rate material, according to the results of the data analyzed. The material validator gave an average score of 91.77% (very feasible), the media validator 90.48% (very feasible) and the teacher's response was 99.07% (very good) and the students' response to the developed module was 97.50% (Very good).","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"140 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139011144","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}
Pub Date : 2023-12-08DOI: 10.24114/jpkim.v15i3.51216
Yusnaidar Yusnaidar, Martina Asti Rahayu, Yolanda Wulandari
{"title":"Synthesis of silver nanoparticles as a reagent for colorimetric detections of creatinine","authors":"Yusnaidar Yusnaidar, Martina Asti Rahayu, Yolanda Wulandari","doi":"10.24114/jpkim.v15i3.51216","DOIUrl":"https://doi.org/10.24114/jpkim.v15i3.51216","url":null,"abstract":"","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"72 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139011718","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}
Pub Date : 2023-12-08DOI: 10.24114/jpkim.v15i3.48864
Alfandi Ahmad, Retno Aliyatul Fikroh
The change from the 2013 curriculum to the Merdeka curriculum emphasizes the importance of experiential learning and the Pancasila student profile. However, polymers, a crucial macromolecular sub-material, often lack experimental support in education. This study focuses on selecting polymer materials through practical activities, specifically the creation of bioplastics from uli banana peels (Musa paradisiaca S), to foster the development of Pancasila Student Profile characteristics: collaborative teamwork, critical thinking, and innovation. Using a qualitative descriptive method, the study involves curriculum analysis, practical design, and feasibility assessment. The research revealed that the practical design aligns with the characteristics of high school experiments and produces high-quality bioplastics in terms of absorbency, tensile strength, elongation percentage, and biodegradability. Teacher and student interviews further confirmed the alignment with the Pancasila phase F student profile (class XII), emphasizing cooperation, objective-oriented learning, critical thinking, and innovation. This study establishes a strong connection between curriculum, learning outcomes, and experimental design in uli banana peel starch bioplastics production. Not only does it promote the development of Pancasila student profiles, but it also yields high-quality bioplastics.
从 2013 年课程到默迪卡课程的变化强调了体验式学习和潘查希拉学生形象的重要性。然而，聚合物作为一种重要的高分子子材料，在教学中往往缺乏实验支持。本研究的重点是通过实践活动选择聚合物材料，特别是利用乌里香蕉皮（Musa paradisiaca S）制作生物塑料，以培养 "潘查希拉 "计划学生的特征：团队协作、批判性思维和创新能力。研究采用定性描述法，包括课程分析、实践设计和可行性评估。研究表明，实践设计符合高中实验的特点，并能生产出高质量的生物塑料，包括吸水性、拉伸强度、伸长率和生物降解性。对教师和学生的访谈进一步证实了这一设计与潘查希拉计划 F 阶段（十二年级）的学生特征相吻合，即强调合作、以目标为导向的学习、批判性思维和创新。这项研究在乌里香蕉皮淀粉生物塑料生产的课程、学习成果和实验设计之间建立了紧密联系。它不仅促进了潘查希拉学生素质的发展，还生产出了高质量的生物塑料。
{"title":"Practicum design for making bioplastics from uli banana peel (Musa paradisiaca S.) to grow the character of the pancasila student profile in polymer chapter","authors":"Alfandi Ahmad, Retno Aliyatul Fikroh","doi":"10.24114/jpkim.v15i3.48864","DOIUrl":"https://doi.org/10.24114/jpkim.v15i3.48864","url":null,"abstract":"The change from the 2013 curriculum to the Merdeka curriculum emphasizes the importance of experiential learning and the Pancasila student profile. However, polymers, a crucial macromolecular sub-material, often lack experimental support in education. This study focuses on selecting polymer materials through practical activities, specifically the creation of bioplastics from uli banana peels (Musa paradisiaca S), to foster the development of Pancasila Student Profile characteristics: collaborative teamwork, critical thinking, and innovation. Using a qualitative descriptive method, the study involves curriculum analysis, practical design, and feasibility assessment. The research revealed that the practical design aligns with the characteristics of high school experiments and produces high-quality bioplastics in terms of absorbency, tensile strength, elongation percentage, and biodegradability. Teacher and student interviews further confirmed the alignment with the Pancasila phase F student profile (class XII), emphasizing cooperation, objective-oriented learning, critical thinking, and innovation. This study establishes a strong connection between curriculum, learning outcomes, and experimental design in uli banana peel starch bioplastics production. Not only does it promote the development of Pancasila student profiles, but it also yields high-quality bioplastics.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"254 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139011517","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}
Pub Date : 2023-08-30DOI: 10.24114/jpkim.v15i2.43681
Muji Rahayu Wigati, Asmadi M. Noer, Lenny Anwar
This research aims to create an assessment tool to evaluate students' scientific reading comprehension and critical thinking ability based on multiple intelligences on acid-base materials and to determine the validity of this study rating tool. The research methodology uses the Borg and Gal research and development model. This research phase continues into the development phase. The assessment instrument developed in this study consists of sixteen items of description test questions that refer to science literacy indicators consisting of four indicators are science as a body of knowledge; science as a way of investigation; science as a way of thinking; and the interaction of science, technology and society. Then the assessment instrument refers to critical thinking which consists of five indicators: providing a simple explanation, building basic skills, inference, providing further explanation, and developing strategies and tactics. This assessment instrument is based on multiple intelligences consisting of five types of intelligence: logical-mathematical, verbal-linguistic, visual-spatial, rhythmic-musical, and naturalistic. The validation of this assessment instrument is carried out by five validators. Validation by material experts is measured using the Guttman scale. Validity according to experts, namely aspects of material, language, and construction, obtained on average expert validation ranges from 90,33 – 94,7% and 16 questions are declared valid. Assessment instruments have been developed to be useful as a measure of a student's creative thinking ability.
{"title":"Validity of instruments for assessment of scientific literacy and critical thinking of students based on multiple intelligence in acid-base material","authors":"Muji Rahayu Wigati, Asmadi M. Noer, Lenny Anwar","doi":"10.24114/jpkim.v15i2.43681","DOIUrl":"https://doi.org/10.24114/jpkim.v15i2.43681","url":null,"abstract":"This research aims to create an assessment tool to evaluate students' scientific reading comprehension and critical thinking ability based on multiple intelligences on acid-base materials and to determine the validity of this study rating tool. The research methodology uses the Borg and Gal research and development model. This research phase continues into the development phase. The assessment instrument developed in this study consists of sixteen items of description test questions that refer to science literacy indicators consisting of four indicators are science as a body of knowledge; science as a way of investigation; science as a way of thinking; and the interaction of science, technology and society. Then the assessment instrument refers to critical thinking which consists of five indicators: providing a simple explanation, building basic skills, inference, providing further explanation, and developing strategies and tactics. This assessment instrument is based on multiple intelligences consisting of five types of intelligence: logical-mathematical, verbal-linguistic, visual-spatial, rhythmic-musical, and naturalistic. The validation of this assessment instrument is carried out by five validators. Validation by material experts is measured using the Guttman scale. Validity according to experts, namely aspects of material, language, and construction, obtained on average expert validation ranges from 90,33 – 94,7% and 16 questions are declared valid. Assessment instruments have been developed to be useful as a measure of a student's creative thinking ability.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75463546","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}
Pub Date : 2023-08-30DOI: 10.24114/jpkim.v15i2.43668
Dian Wardana, E. Eddiyanto, N. Nurfajriani, S. Gea
Palm fatty acid distillate (PFAD) is a waste from cooking oil which is rich in free fatty acids (FFA). The high FFA content in PFAD allows PFAD to be processed into a renewable and economically valuable energy source, namely biodiesel through an esterification process using methanol with the help of an amberlyst catalyst. This study aims to see how the effect of variations in flow rates on the conversion of PFAD to biodiesel which takes place in a continuous reactor and to see the effect of repeated use of catalysts at optimum conditions on the conversion rate. The results showed that the optimum conditions were obtained with a methanol flow rate of 2 ml/minute. The flow rate of methanol above 2 ml/minute actually inhibits the reaction process. The repeated use of the catalyst reduces the availability of active sites and increases the presence of impurities and reduces the thermal stability of the catalyst at high temperatures.
{"title":"The effect of methanol flow rate and repeated use on amberlyst catalyst characteristics in palm fatty acid distillate (PFAD) esterification reaction","authors":"Dian Wardana, E. Eddiyanto, N. Nurfajriani, S. Gea","doi":"10.24114/jpkim.v15i2.43668","DOIUrl":"https://doi.org/10.24114/jpkim.v15i2.43668","url":null,"abstract":"Palm fatty acid distillate (PFAD) is a waste from cooking oil which is rich in free fatty acids (FFA). The high FFA content in PFAD allows PFAD to be processed into a renewable and economically valuable energy source, namely biodiesel through an esterification process using methanol with the help of an amberlyst catalyst. This study aims to see how the effect of variations in flow rates on the conversion of PFAD to biodiesel which takes place in a continuous reactor and to see the effect of repeated use of catalysts at optimum conditions on the conversion rate. The results showed that the optimum conditions were obtained with a methanol flow rate of 2 ml/minute. The flow rate of methanol above 2 ml/minute actually inhibits the reaction process. The repeated use of the catalyst reduces the availability of active sites and increases the presence of impurities and reduces the thermal stability of the catalyst at high temperatures.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87602055","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}
Pub Date : 2023-08-30DOI: 10.24114/jpkim.v15i2.41780
Fajar Sumi Lestari, Ricson Pemimpin Hutagaol, Srikandi Srikandi
Free radicals can cause many diseases, such as cancer. Antioxidant is a compound that could scavenge free radicals. One of the natural source antioxidants is guava. The application of gibberellic acid (GA3) is known to affect the physicochemical properties and antioxidant content of the fruit. The goals of this research were to investigate the antioxidant activity of skin, flesh and fruit of crystal guava were given additional GA3 treatment with concentration 0; 60; 120; 180; 240; and 300 ppm by determining the value of the Antioxidant Activity Index (AAI) using DPPH; evaluate the total phenolic content (TPC), ferric reducing antioxidant power (FRAP) and physicochemical properties; analyse the correlation between the TPC with AAI DPPH by Pearson’s method. Extraction was performed by the maceration method using acetone 50% mixed with a magnetic stirrer for 1 h. Determination of AAI DPPH, FRAP and the TPC was performed by UV-Visible spectrophotometry. TPC in the flesh and fruit fractions tended to increase and FRAP values in all fractions decreased with GA3 application. The highest TPC and FRAP was given by the G3 treatment on the skin fraction and G0 treatment on the skin fraction. The highest AAI in all fractions was given by the G3 treatment. The TPC was significantly positively correlated with the AAI DPPH of the flesh and fruit fraction extracts (0.250 ≤ r ≤ 0.880), and the skin fraction extracts showed a strong negative correlation between TPC and AAI DPPH (-0.813 < r < -0.973).
自由基能引起许多疾病，比如癌症。抗氧化剂是一种可以清除自由基的化合物。番石榴是抗氧化剂的天然来源之一。赤霉素(GA3)的施用会影响果实的理化性质和抗氧化剂含量。本研究的目的是研究加用浓度为0的GA3处理晶体番石榴果皮、果肉和果实的抗氧化活性;60;120;180;240;用DPPH测定抗氧化活性指数(AAI)值，得到300 ppm;评价总酚含量(TPC)、铁还原抗氧化能力(FRAP)和理化性能;用Pearson法分析TPC与AAI DPPH的相关性。用50%丙酮与磁力搅拌器混合浸渍法提取1 h。紫外可见分光光度法测定AAI、DPPH、FRAP和TPC。施用GA3后，果肉和果实的TPC值有升高的趋势，FRAP值有降低的趋势。G3组和G0组的TPC和FRAP最高。各分组AAI均以G3处理最高。果肉和果实部位提取物的TPC与AAI DPPH呈极显著正相关(0.250≤r≤0.880)，皮部位提取物的TPC与AAI DPPH呈极显著负相关(-0.813 < r < -0.973)。
{"title":"Crystal guava (Psidium guajava L. “Crystal”) treated with gibberelic acid (GA3) : Evaluation of in vitro antioxidant capacities","authors":"Fajar Sumi Lestari, Ricson Pemimpin Hutagaol, Srikandi Srikandi","doi":"10.24114/jpkim.v15i2.41780","DOIUrl":"https://doi.org/10.24114/jpkim.v15i2.41780","url":null,"abstract":"Free radicals can cause many diseases, such as cancer. Antioxidant is a compound that could scavenge free radicals. One of the natural source antioxidants is guava. The application of gibberellic acid (GA3) is known to affect the physicochemical properties and antioxidant content of the fruit. The goals of this research were to investigate the antioxidant activity of skin, flesh and fruit of crystal guava were given additional GA3 treatment with concentration 0; 60; 120; 180; 240; and 300 ppm by determining the value of the Antioxidant Activity Index (AAI) using DPPH; evaluate the total phenolic content (TPC), ferric reducing antioxidant power (FRAP) and physicochemical properties; analyse the correlation between the TPC with AAI DPPH by Pearson’s method. Extraction was performed by the maceration method using acetone 50% mixed with a magnetic stirrer for 1 h. Determination of AAI DPPH, FRAP and the TPC was performed by UV-Visible spectrophotometry. TPC in the flesh and fruit fractions tended to increase and FRAP values in all fractions decreased with GA3 application. The highest TPC and FRAP was given by the G3 treatment on the skin fraction and G0 treatment on the skin fraction. The highest AAI in all fractions was given by the G3 treatment. The TPC was significantly positively correlated with the AAI DPPH of the flesh and fruit fraction extracts (0.250 ≤ r ≤ 0.880), and the skin fraction extracts showed a strong negative correlation between TPC and AAI DPPH (-0.813 < r < -0.973).","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"149 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91136259","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}
Pub Date : 2023-08-30DOI: 10.24114/jpkim.v15i2.45523
Nur Wijayanto, Abdul Gani, M. Hasan, Asri Widowati
Scientific literacy has a vital role in supporting 21st-century skills. Good literacy skills can directly affect students' thinking abilities, which makes them more creative in solving problems. The low ability of students' scientific literacy and critical thinking is still a problem in the world of education. The application of appropriate learning models and methods can improve student learning outcomes. The goal of this study was to see how the flipped classroom learning model affected the literacy and critical thinking skills of SMAN 3 Yogyakarta grade XI students. The pretest-posttest control design experimental method was carried out on a total of 35 samples from a population of 213 students. The results of the Mann Whitney and Wilcoxon tests obtained a significance of less than 0.05 in both the control and experimental groups for pretest and posttest values. The use of the flipped classroom method effectively improved scientific literacy and critical thinking skill. There is a strong relationship between critical thinking skills and scientific literacy.
{"title":"The effectiveness of flipped classroom on scientific literacy and critical thinking improvement","authors":"Nur Wijayanto, Abdul Gani, M. Hasan, Asri Widowati","doi":"10.24114/jpkim.v15i2.45523","DOIUrl":"https://doi.org/10.24114/jpkim.v15i2.45523","url":null,"abstract":"Scientific literacy has a vital role in supporting 21st-century skills. Good literacy skills can directly affect students' thinking abilities, which makes them more creative in solving problems. The low ability of students' scientific literacy and critical thinking is still a problem in the world of education. The application of appropriate learning models and methods can improve student learning outcomes. The goal of this study was to see how the flipped classroom learning model affected the literacy and critical thinking skills of SMAN 3 Yogyakarta grade XI students. The pretest-posttest control design experimental method was carried out on a total of 35 samples from a population of 213 students. The results of the Mann Whitney and Wilcoxon tests obtained a significance of less than 0.05 in both the control and experimental groups for pretest and posttest values. The use of the flipped classroom method effectively improved scientific literacy and critical thinking skill. There is a strong relationship between critical thinking skills and scientific literacy.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90259366","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}
Pub Date : 2023-08-30DOI: 10.24114/jpkim.v15i2.43359
Ari Syahidul Shidiq, S. Yamtinah, Hayuni Retno Widarti
Chemistry learning should be able to integrate contextual chemistry problems and present the sophistication of 21st-century learning technology. As a product of 21st-century technology, social media can be used as chemistry learning media. Therefore, this study aims to investigate the views of chemistry teachers and pre-service chemistry teachers toward the potential use of social media as chemistry learning media. The Purposed-designed survey method that involved 76 chemistry teachers and 109 pre-service chemistry teachers as respondents was used in this study. A total of 40 question items were developed and distributed online using a Google form to respondents. Based on the results of the survey conducted, it is known that during online and offline chemistry learning, respondents are accustomed to using YouTube as chemistry learning media. In addition, Instagram is the social media most widely owned by pre-service chemistry teachers, while Facebook is the social media most commonly owned by chemistry teachers. Other results reveal that most respondents have the same screen time, more than 4 hours daily. This screen time is used by respondents for entertainment and looking for news information on social media. With this long screen time not used for learning, it can be a promising opportunity to use social media as chemistry learning media. This study is expected to be a reference for developing social media-based chemistry learning to increase student motivation and achievement.
{"title":"Chemistry teacher and pre-service chemistry teacher views: Can social media be used as chemistry learning media?","authors":"Ari Syahidul Shidiq, S. Yamtinah, Hayuni Retno Widarti","doi":"10.24114/jpkim.v15i2.43359","DOIUrl":"https://doi.org/10.24114/jpkim.v15i2.43359","url":null,"abstract":"Chemistry learning should be able to integrate contextual chemistry problems and present the sophistication of 21st-century learning technology. As a product of 21st-century technology, social media can be used as chemistry learning media. Therefore, this study aims to investigate the views of chemistry teachers and pre-service chemistry teachers toward the potential use of social media as chemistry learning media. The Purposed-designed survey method that involved 76 chemistry teachers and 109 pre-service chemistry teachers as respondents was used in this study. A total of 40 question items were developed and distributed online using a Google form to respondents. Based on the results of the survey conducted, it is known that during online and offline chemistry learning, respondents are accustomed to using YouTube as chemistry learning media. In addition, Instagram is the social media most widely owned by pre-service chemistry teachers, while Facebook is the social media most commonly owned by chemistry teachers. Other results reveal that most respondents have the same screen time, more than 4 hours daily. This screen time is used by respondents for entertainment and looking for news information on social media. With this long screen time not used for learning, it can be a promising opportunity to use social media as chemistry learning media. This study is expected to be a reference for developing social media-based chemistry learning to increase student motivation and achievement.","PeriodicalId":17697,"journal":{"name":"Jurnal Pendidikan Kimia","volume":"2008 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82577133","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：