Pub Date : 2024-02-29DOI: 10.33394/hjkk.v12i1.10601
P. Yulis, Oktariani Oktariani
The current condition is still limited to analytical chemistry teaching materials that are integrated with research results, only using Analytical Chemistry textbooks as teaching materials or in the form of e-books. This is one of the causes of the lack of student interest in participating in the teaching and learning process. The purpose of this research is to produce innovative teaching materials in analytical chemistry based on research results, aiming to enhance students' interest in learning.This research is the initial stage as a basis for developing analytical chemistry e-modules integrated with research results. The development model used is ADDIE which consists of five stages, namely Analysis, Design, Development, Implementation and Evaluation. This research is limited to the needs analysis stage which includes RPS analysis, analysis of problems and needs of lecturers and problems and needs of students. Data collection instruments used interviews and questionnaires. The subjects of this study consisted of 6 Analytical Chemistry lecturers and 59 students from Riau Province, Riau Islands, North Sumatra, and West Java. The research results of this preliminary analysis include RPS analysis where there are 10 topics of study material and based on the needs questionnaire the topic of quantitative analysis is the topic with the highest percentage to be developed into an e-module. Then also obtained the results that there are still some shortcomings with the teaching materials used today, so that 98% of lecturers and students stated that they need the development of teaching materials, especially those that are digital-based and can be integrated with research results which are evidence of the implementation of analytical chemistry learning theory.
{"title":"Need Analysis for Development (E-Module) of Analytical Chemistry Integrated with Environmental Analysis Research Results","authors":"P. Yulis, Oktariani Oktariani","doi":"10.33394/hjkk.v12i1.10601","DOIUrl":"https://doi.org/10.33394/hjkk.v12i1.10601","url":null,"abstract":"The current condition is still limited to analytical chemistry teaching materials that are integrated with research results, only using Analytical Chemistry textbooks as teaching materials or in the form of e-books. This is one of the causes of the lack of student interest in participating in the teaching and learning process. The purpose of this research is to produce innovative teaching materials in analytical chemistry based on research results, aiming to enhance students' interest in learning.This research is the initial stage as a basis for developing analytical chemistry e-modules integrated with research results. The development model used is ADDIE which consists of five stages, namely Analysis, Design, Development, Implementation and Evaluation. This research is limited to the needs analysis stage which includes RPS analysis, analysis of problems and needs of lecturers and problems and needs of students. Data collection instruments used interviews and questionnaires. The subjects of this study consisted of 6 Analytical Chemistry lecturers and 59 students from Riau Province, Riau Islands, North Sumatra, and West Java. The research results of this preliminary analysis include RPS analysis where there are 10 topics of study material and based on the needs questionnaire the topic of quantitative analysis is the topic with the highest percentage to be developed into an e-module. Then also obtained the results that there are still some shortcomings with the teaching materials used today, so that 98% of lecturers and students stated that they need the development of teaching materials, especially those that are digital-based and can be integrated with research results which are evidence of the implementation of analytical chemistry learning theory. ","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"21 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140411889","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 : 2024-02-29DOI: 10.33394/hjkk.v12i1.10443
Ferdy Jurniawan, Tuti Kurniati, Dedeh Kurniasih
The problems that arise in class X MIA SMA Negeri 2 Sungai Ambawang related to the learning process have not carried out practicum activities due to limited facilities and infrastructure at school. This study aims to develop Electrolyte Box media on electrolyte and nonelectrolyte solution materials that are valid, practical and effective. This type of research is Research and Development (R&D) ADDIE model. The sampling technique used is purposive sampling technique. The sample in this study amounted to 27 students of SMA Negeri 2 Sungai Ambawang. Validity is measured from the validator's assessment using the validation sheet, practicality is measured from the learner response questionnaire, then effectiveness is measured based on the pretest and posttest results of students. The data analysis technique is descriptive statistics. The results of the validity of the material and media aspects of the Electorlyte Box are 0.83 (very valid) and 0.79 (valid), respectively. The practicality test results in the initial and main field trials obtained very practical criteria with a value of 98.43% and 96.30% respectively. The effectiveness aspect in the initial and main field trials was 0.73 and 0.71 with high criteria. Therefore, the learning media in high school that has been developed is suitable for use as learning media.
由于学校的设施和基础设施有限，MIA SMA Negeri 2 Sungai Ambawang 第十班在学习过程中出现的问题是没有开展实践活动。本研究旨在开发有效、实用和有效的电解质和非电解质溶液材料的电解质盒媒体。这类研究属于研究与开发（R&D）ADDIE 模型。采用的抽样技术是目的性抽样技术。本研究的样本为 SMA Negeri 2 Sungai Ambawang 的 27 名学生。有效性通过验证者使用验证表进行评估来衡量，实用性通过学习者回答问卷来衡量，有效性则根据学生的前测和后测结果来衡量。数据分析技术为描述性统计。电解质盒的材料和媒体方面的有效性结果分别为 0.83（非常有效）和 0.79（有效）。初次和主要实地试验的实用性测试结果均达到了非常实用的标准，分别为 98.43% 和 96.30%。初试和主试的有效性分别为 0.73 和 0.71，标准较高。因此，已开发的高中学习媒体适合用作学习媒体。
{"title":"Development of Electrolyte Box to Improve Student Learning Outcomes at SMAN 2 Sungai Ambawang","authors":"Ferdy Jurniawan, Tuti Kurniati, Dedeh Kurniasih","doi":"10.33394/hjkk.v12i1.10443","DOIUrl":"https://doi.org/10.33394/hjkk.v12i1.10443","url":null,"abstract":"The problems that arise in class X MIA SMA Negeri 2 Sungai Ambawang related to the learning process have not carried out practicum activities due to limited facilities and infrastructure at school. This study aims to develop Electrolyte Box media on electrolyte and nonelectrolyte solution materials that are valid, practical and effective. This type of research is Research and Development (R&D) ADDIE model. The sampling technique used is purposive sampling technique. The sample in this study amounted to 27 students of SMA Negeri 2 Sungai Ambawang. Validity is measured from the validator's assessment using the validation sheet, practicality is measured from the learner response questionnaire, then effectiveness is measured based on the pretest and posttest results of students. The data analysis technique is descriptive statistics. The results of the validity of the material and media aspects of the Electorlyte Box are 0.83 (very valid) and 0.79 (valid), respectively. The practicality test results in the initial and main field trials obtained very practical criteria with a value of 98.43% and 96.30% respectively. The effectiveness aspect in the initial and main field trials was 0.73 and 0.71 with high criteria. Therefore, the learning media in high school that has been developed is suitable for use as learning media.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"37 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140409119","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 : 2024-02-29DOI: 10.33394/hjkk.v12i1.10679
Ramda Prifes, Heppy Okmarisa
The application of problem-based learning model teaches students how to deal with problems and find solutions by expressing opinions and providing logical justification for real problems, so it is expected to improve students' argumentation skills. This study aims to determine the effect of problem-based learning model on students' argumentation skills on salt hydolysis material. This study was carried out in the even semester of the 2022/2023 academic year at MAN 2 Kampar, class XI IPA.Pretest-posttest Non-Equivalent Control Grub Design was the experimental design for this study, which used quasi-experimental methods. The sample consisted of XI IPA1 students as the experimental class and XI IPA2 as the control class. Data collected to measure students argumentation skills through tests and observations and analyzed using t-test and coefficient of determination test in SPSS 24. In the t-test, the Sig (2-tailed) = 0.000 outcome is more modest than 0.05, and that implies H0 is dismissed and Ha is accepted. For the determination test, the value (r2) = 0.284 is obtained, it can be concluded that the problem-based learning model affects students argumentation skills on salt hydrolysis material by 28.4%.
基于问题的学习模式的应用教会学生如何处理问题，并通过对实际问题发表意见和提供逻辑理由来找到解决方案，因此有望提高学生的论证能力。本研究旨在确定基于问题的学习模式对学生盐溶液教材论证能力的影响。本研究于 2022/2023 学年偶数学期在贡榜市第二师范学院十一年级 IPA 班进行。本研究的实验设计为 "前测-后测非等效对照 Grub 设计"，采用准实验方法。样本包括作为实验班的 XI IPA1 学生和作为对照班的 XI IPA2 学生。通过测试和观察收集数据以衡量学生的论证能力，并在 SPSS 24 中使用 t 检验和判定系数检验进行分析。在 t 检验中，Sig（双尾）= 0.000 的结果大于 0.05，这意味着 H0 被否定，Ha 被接受。在判定检验中，得到的值（r2）= 0.284，可以得出结论：基于问题的学习模式对学生盐类水解材料论证能力的影响为 28.4%。
{"title":"The Effect of Problem Based Learning (PBL) Learning Model on Students' Argumentation Ability on Salt Hydrolysis Material","authors":"Ramda Prifes, Heppy Okmarisa","doi":"10.33394/hjkk.v12i1.10679","DOIUrl":"https://doi.org/10.33394/hjkk.v12i1.10679","url":null,"abstract":"The application of problem-based learning model teaches students how to deal with problems and find solutions by expressing opinions and providing logical justification for real problems, so it is expected to improve students' argumentation skills. This study aims to determine the effect of problem-based learning model on students' argumentation skills on salt hydolysis material. This study was carried out in the even semester of the 2022/2023 academic year at MAN 2 Kampar, class XI IPA.Pretest-posttest Non-Equivalent Control Grub Design was the experimental design for this study, which used quasi-experimental methods. The sample consisted of XI IPA1 students as the experimental class and XI IPA2 as the control class. Data collected to measure students argumentation skills through tests and observations and analyzed using t-test and coefficient of determination test in SPSS 24. In the t-test, the Sig (2-tailed) = 0.000 outcome is more modest than 0.05, and that implies H0 is dismissed and Ha is accepted. For the determination test, the value (r2) = 0.284 is obtained, it can be concluded that the problem-based learning model affects students argumentation skills on salt hydrolysis material by 28.4%.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140412347","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}
The aim of the research was to identify Piroxicam in herbal medicine for rheumatic pain circulating in Makassar. There are several traditional medicines that contain medicinal chemicals. Research has been conducted on the identification of medicinal chemicals (BKO) on several rheumatic herbs preparations in herbs shops in Makassar. The BKO which is often included in rheumatic herbs is the NSAID group, one of which is piroxicam. This inspection was conducted to know the presence of the chemical drug piroxicam contained within rheumatic herbs preparations and the samples used were 5 samples. The method used was a qualitative test using thin layer chromatography (TLC) consisting of a mobile phase mixed with n-hexane and acetone (7:3) and a stationary phase using Silica Gel GF254. The results of the TLC examination from 5 samples of herbal medicine added BKO piroxicam contained 3 samples including herbs A, B, and C because they had the same stain color at the same Rf value as the piroxicam. Some of the rheumatic herbs circulating in Makassar contain medicinal chemicals in the form of piroxicam.
{"title":"Identification of Medicinal Chemicals (BKO) Piroxicam in Jamu Pegal Linu Preparations in Makassar City","authors":"Hasnaeni Hasnaeni, Selpida Handayani, Velda Andina","doi":"10.33394/hjkk.v12i1.10576","DOIUrl":"https://doi.org/10.33394/hjkk.v12i1.10576","url":null,"abstract":"The aim of the research was to identify Piroxicam in herbal medicine for rheumatic pain circulating in Makassar. There are several traditional medicines that contain medicinal chemicals. Research has been conducted on the identification of medicinal chemicals (BKO) on several rheumatic herbs preparations in herbs shops in Makassar. The BKO which is often included in rheumatic herbs is the NSAID group, one of which is piroxicam. This inspection was conducted to know the presence of the chemical drug piroxicam contained within rheumatic herbs preparations and the samples used were 5 samples. The method used was a qualitative test using thin layer chromatography (TLC) consisting of a mobile phase mixed with n-hexane and acetone (7:3) and a stationary phase using Silica Gel GF254. The results of the TLC examination from 5 samples of herbal medicine added BKO piroxicam contained 3 samples including herbs A, B, and C because they had the same stain color at the same Rf value as the piroxicam. Some of the rheumatic herbs circulating in Makassar contain medicinal chemicals in the form of piroxicam.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140415889","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 : 2024-02-29DOI: 10.33394/hjkk.v12i1.10192
Miftakhul Janah, M. Mitarlis
This research aims to obtain chemistry learning media based on joyful learning with the snakes and ladders game on stoichiometric material that is suitable for use to improve student learning outcomes based on the validity, practicality and effectiveness of the game. The research method used is the research development (R&D) method with the 4D model by Tigharajan which consists of 4 main stages, define, design, develop and disseminate. However, the development of Joyful Learing-based Chemistry Learning Media with the Snakes and Ladders game has only reached the development stage. The research was carried out at Surabaya State University and SMA Negeri 1 Menganti Gresik. Test the game media using the One Group Pretest-Posttest Design system. Validity is obtained from the assessment of the stoichiometric snake and ladder game media by the validator. Practicality is obtained from the results of observing student activities, observing the implementation of learning activities, and student response questionnaires. Effectiveness is obtained from student learning outcomes. The results of the research show that chemistry learning media based on joyful learning with the snakes and ladders game on stoichiometric material is suitable for improving student learning outcomes with a feasibility score of ≥ 4 in the feasible to very feasible category. The practicality of chemistry learning media based on joyful learning with the snakes and ladders game on stoichiometric material to improve student learning outcomes is said to be suitable for use in terms of the results of observations of student activities which obtained a percentage of 96.81%, the results of observations of learning implementation obtained a percentage of 93.98%, and Student responses obtained a percentage of 91.52%. Then, the effectiveness of chemistry learning media based on joyful learning with the snakes and ladders game on stoichiometry material to improve student learning outcomes which was developed in terms of pretest and posttest scores was declared effective. This is shown by the N-gain score of all students being in the medium to high category and meeting the KKM value, with an average N-gain value of 0.79 with high criteria. This shows that the stoichiometric snakes and ladders game is declared suitable for use as a chemistry learning medium based on joyful learning on stoichiometric material to improve student learning outcomes.
{"title":"Development of Chemistry Learning Media based on Joyful Learning with Snakes and Ladders Game on Stoichiometry material to Improve Student Learning Outcomes","authors":"Miftakhul Janah, M. Mitarlis","doi":"10.33394/hjkk.v12i1.10192","DOIUrl":"https://doi.org/10.33394/hjkk.v12i1.10192","url":null,"abstract":"This research aims to obtain chemistry learning media based on joyful learning with the snakes and ladders game on stoichiometric material that is suitable for use to improve student learning outcomes based on the validity, practicality and effectiveness of the game. The research method used is the research development (R&D) method with the 4D model by Tigharajan which consists of 4 main stages, define, design, develop and disseminate. However, the development of Joyful Learing-based Chemistry Learning Media with the Snakes and Ladders game has only reached the development stage. The research was carried out at Surabaya State University and SMA Negeri 1 Menganti Gresik. Test the game media using the One Group Pretest-Posttest Design system. Validity is obtained from the assessment of the stoichiometric snake and ladder game media by the validator. Practicality is obtained from the results of observing student activities, observing the implementation of learning activities, and student response questionnaires. Effectiveness is obtained from student learning outcomes. The results of the research show that chemistry learning media based on joyful learning with the snakes and ladders game on stoichiometric material is suitable for improving student learning outcomes with a feasibility score of ≥ 4 in the feasible to very feasible category. The practicality of chemistry learning media based on joyful learning with the snakes and ladders game on stoichiometric material to improve student learning outcomes is said to be suitable for use in terms of the results of observations of student activities which obtained a percentage of 96.81%, the results of observations of learning implementation obtained a percentage of 93.98%, and Student responses obtained a percentage of 91.52%. Then, the effectiveness of chemistry learning media based on joyful learning with the snakes and ladders game on stoichiometry material to improve student learning outcomes which was developed in terms of pretest and posttest scores was declared effective. This is shown by the N-gain score of all students being in the medium to high category and meeting the KKM value, with an average N-gain value of 0.79 with high criteria. This shows that the stoichiometric snakes and ladders game is declared suitable for use as a chemistry learning medium based on joyful learning on stoichiometric material to improve student learning outcomes.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"6 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140408480","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 : 2024-02-29DOI: 10.33394/hjkk.v12i1.10442
Sri Rahayu, H. Hairida, Rahmat Rasmawan, Rody Putra Sartika, Lukman Hadi
The curriculum 2013 experienced a shift in the assessment process, which is from the assessment of results to the assessment process. In the process of carrying out the assessment, many complaints that arise in the field including the difficulty in determining the assessment of various aspects both cognitive, affective, and psychomotor. Researchers are interested in knowing how the ability of PPG SM3T Chemistry Education’s Students as a prospective professional teacher in compiling an assessment based on curriculum 2013. The research purposes were to describe the ability of PPG SM3T Chemistry Education’s Students in compiling an assessment based on curriculum 2013. The methode of the research was descriptive with study case involved 16 students of PPG SM3T Chemistry Education in the 2018/2019 school year. The research instrument was in the form of an assessment rubric with 10 aspects of assessment, one of which contained HOTS questions. The results of the data analysis showed that the ability of PPG SM3T Chemistry Education in compiling HOTS questions was classified as less skilled with an average score 67.19% whereas when viewed from all aspects of the preparation of the assessment based on curriculum 2013 it was classified as skilled with an average score 84.89%.
{"title":"Description of the Ability to Arrange Assessments According Curriculum 2013 on Chemistry PPG SM3T Student","authors":"Sri Rahayu, H. Hairida, Rahmat Rasmawan, Rody Putra Sartika, Lukman Hadi","doi":"10.33394/hjkk.v12i1.10442","DOIUrl":"https://doi.org/10.33394/hjkk.v12i1.10442","url":null,"abstract":"The curriculum 2013 experienced a shift in the assessment process, which is from the assessment of results to the assessment process. In the process of carrying out the assessment, many complaints that arise in the field including the difficulty in determining the assessment of various aspects both cognitive, affective, and psychomotor. Researchers are interested in knowing how the ability of PPG SM3T Chemistry Education’s Students as a prospective professional teacher in compiling an assessment based on curriculum 2013. The research purposes were to describe the ability of PPG SM3T Chemistry Education’s Students in compiling an assessment based on curriculum 2013. The methode of the research was descriptive with study case involved 16 students of PPG SM3T Chemistry Education in the 2018/2019 school year. The research instrument was in the form of an assessment rubric with 10 aspects of assessment, one of which contained HOTS questions. The results of the data analysis showed that the ability of PPG SM3T Chemistry Education in compiling HOTS questions was classified as less skilled with an average score 67.19% whereas when viewed from all aspects of the preparation of the assessment based on curriculum 2013 it was classified as skilled with an average score 84.89%.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"38 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140410690","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}
This study aims to produce an Environmental-Based Chemistry Practicum Assessment Instrument for Reaction Rate Material for Class XI MA / SMA. The development model used in this research is the development model according to Borg and Gall (in Sugiyono, 2011) which consists of 4 stages: Potential and Problems, Gathering Information, Product Design, and Design Validation. The development in this study refers to the product produced in the form of an assessment instrument. which is measured until the validity of the expert where the validity aspects are based on the results of the experts' assessment validation questionnaire. The aspects assessed in the product of the environmental-based practicum performance instrument assessment instrument are the feasibility of instructions, content feasibility and language feasibility. The assessment instrument in this content aspect is arranged sequentially according to the practicum procedure. Based on the results of validation by validators, the linguistic aspect obtained a score with a percentage of 93%, then the linguistic aspect is divided into several assessment criteria, including the use of language in accordance with EYD, clarity of instructions and directions and the language used is straightforward and easy to understand Based on the results of validation by validators, the linguistic aspect obtained a score with a percentage of 91%. The validity level of the chemistry practicum performance assessment instrument measured practicum performance in the form of scores 1-4. Determination of the validity of the practicum performance assessment instrument is done by calculating the score given by the validator and analyzing the validator's suggestions and input on the instrument product assessment questionnaire sheet in the form of a check list. The results concluded that the student practicum performance assessment instrument was feasible to use.
{"title":"Development of Science Process Skills Assessment Instruments in Environment Based Practicum on Reaction Rate Material","authors":"Nurmala Nurmala, Rachmad Sahputra, Rahmat Rasmawan, M. Masriani, Husna Amalya Melati","doi":"10.33394/hjkk.v12i1.10441","DOIUrl":"https://doi.org/10.33394/hjkk.v12i1.10441","url":null,"abstract":"This study aims to produce an Environmental-Based Chemistry Practicum Assessment Instrument for Reaction Rate Material for Class XI MA / SMA. The development model used in this research is the development model according to Borg and Gall (in Sugiyono, 2011) which consists of 4 stages: Potential and Problems, Gathering Information, Product Design, and Design Validation. The development in this study refers to the product produced in the form of an assessment instrument. which is measured until the validity of the expert where the validity aspects are based on the results of the experts' assessment validation questionnaire. The aspects assessed in the product of the environmental-based practicum performance instrument assessment instrument are the feasibility of instructions, content feasibility and language feasibility. The assessment instrument in this content aspect is arranged sequentially according to the practicum procedure. Based on the results of validation by validators, the linguistic aspect obtained a score with a percentage of 93%, then the linguistic aspect is divided into several assessment criteria, including the use of language in accordance with EYD, clarity of instructions and directions and the language used is straightforward and easy to understand Based on the results of validation by validators, the linguistic aspect obtained a score with a percentage of 91%. The validity level of the chemistry practicum performance assessment instrument measured practicum performance in the form of scores 1-4. Determination of the validity of the practicum performance assessment instrument is done by calculating the score given by the validator and analyzing the validator's suggestions and input on the instrument product assessment questionnaire sheet in the form of a check list. The results concluded that the student practicum performance assessment instrument was feasible to use.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"17 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140409651","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 : 2024-02-29DOI: 10.33394/hjkk.v12i1.10435
Abraham Mora, Arrizal Abdul Aziz
The objective of this study is to conduct a bibliometric analysis using VOSviewer on the research progress of the conducting polymer for wearable sensors topic. Data was extracted from the Dimensions database from 2014 to August 2023. 268 Dimensions articles were relevant to the keywords. The title and abstract from the metadata were employed to be analyzed for co-occurrence using VOSviewer. As a result, 9544 terms were obtained through the search method, but only 184 met the threshold of 10 minimum occurrences in all retrieved articles and were selected for further analysis. There was a consistent upward trend in publication numbers between 2014 to August 2023. Based on the network visualization of keyword co-occurrence, it evidenced six clusters that group all specific keywords based on the common themes. The most recent keywords (occurred between 2021 and 2022) included conductive hydrogel, polymer hydrogel, flexible sensor, MXene, strain sensor, and stretchable strain sensor. Based on this study, it is suggested to discover more about conducting and flexible hydrogel materials and the possibilities to enhance the electrical and mechanical properties of conducting polymers by introducing MXene. The materials are viewed for applications such as flexible strain sensors and other wearable sensors.
{"title":"Conducting Polymers for Wearable Sensors: A Bibliometric Analysis Using VOSviewer","authors":"Abraham Mora, Arrizal Abdul Aziz","doi":"10.33394/hjkk.v12i1.10435","DOIUrl":"https://doi.org/10.33394/hjkk.v12i1.10435","url":null,"abstract":"The objective of this study is to conduct a bibliometric analysis using VOSviewer on the research progress of the conducting polymer for wearable sensors topic. Data was extracted from the Dimensions database from 2014 to August 2023. 268 Dimensions articles were relevant to the keywords. The title and abstract from the metadata were employed to be analyzed for co-occurrence using VOSviewer. As a result, 9544 terms were obtained through the search method, but only 184 met the threshold of 10 minimum occurrences in all retrieved articles and were selected for further analysis. There was a consistent upward trend in publication numbers between 2014 to August 2023. Based on the network visualization of keyword co-occurrence, it evidenced six clusters that group all specific keywords based on the common themes. The most recent keywords (occurred between 2021 and 2022) included conductive hydrogel, polymer hydrogel, flexible sensor, MXene, strain sensor, and stretchable strain sensor. Based on this study, it is suggested to discover more about conducting and flexible hydrogel materials and the possibilities to enhance the electrical and mechanical properties of conducting polymers by introducing MXene. The materials are viewed for applications such as flexible strain sensors and other wearable sensors.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"90 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140411118","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 : 2024-02-29DOI: 10.33394/hjkk.v12i1.10440
Nenny Fitrianti, Husna Amalya Melati, Rahmat Rasmawan, Rody Putra Sartika, Lukman Hadi
This study discusses the ineffective chemistry learning process resulting in poor grades at State Senior High School (SMAN) 1 Rasau Jaya, students tend to receive information from the teacher without constructing their own knowledge, so students have difficulty in constructing the material obtained from the teacher. The purpose of this study is to describe the learning outcomes of students in 11th Grade Science Class odd semester in chemistry subjects at SMAN 1 Rasau Jaya. The form of research used in this research is descriptive research, and the type of research is a case study. Case study is one of qualitative research, in which researchers conduct in-depth exploration of programs, events, processes, activities, for one or more people. The subjects of this study were students of 11th Grade Science Class at SMAN 1 Rasau Jaya in the 2019/2020 school year who took the odd semester general test, totaling 93 students. The research process includes three stages, namely the preparation stage, the implementation stage, and the final stage. The data collection tool used is the odd semester general test score. Results and Discussion regarding Indicator 1: List the general formula of alkane, alkene and alkyne compounds, Indicator 2: Mention the law of conservation of energy, Indicator 3: Determine the number of moles from the results of the experiment, Indicator 4: Determine the value of the equilibrium constant Kc based on the reaction. The results of the general test conducted on 11th Grade students of SMAN 1 Rasau Jaya can be concluded that the learning outcomes of students in the class are not adequate.
{"title":"Chemsitry Learning Outcomes of 11th Grade Science Students at SMAN 1 Rasau Jaya","authors":"Nenny Fitrianti, Husna Amalya Melati, Rahmat Rasmawan, Rody Putra Sartika, Lukman Hadi","doi":"10.33394/hjkk.v12i1.10440","DOIUrl":"https://doi.org/10.33394/hjkk.v12i1.10440","url":null,"abstract":"This study discusses the ineffective chemistry learning process resulting in poor grades at State Senior High School (SMAN) 1 Rasau Jaya, students tend to receive information from the teacher without constructing their own knowledge, so students have difficulty in constructing the material obtained from the teacher. The purpose of this study is to describe the learning outcomes of students in 11th Grade Science Class odd semester in chemistry subjects at SMAN 1 Rasau Jaya. The form of research used in this research is descriptive research, and the type of research is a case study. Case study is one of qualitative research, in which researchers conduct in-depth exploration of programs, events, processes, activities, for one or more people. The subjects of this study were students of 11th Grade Science Class at SMAN 1 Rasau Jaya in the 2019/2020 school year who took the odd semester general test, totaling 93 students. The research process includes three stages, namely the preparation stage, the implementation stage, and the final stage. The data collection tool used is the odd semester general test score. Results and Discussion regarding Indicator 1: List the general formula of alkane, alkene and alkyne compounds, Indicator 2: Mention the law of conservation of energy, Indicator 3: Determine the number of moles from the results of the experiment, Indicator 4: Determine the value of the equilibrium constant Kc based on the reaction. The results of the general test conducted on 11th Grade students of SMAN 1 Rasau Jaya can be concluded that the learning outcomes of students in the class are not adequate.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140414914","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 : 2024-02-29DOI: 10.33394/hjkk.v12i1.10655
D. Deliza, Safni Safni, R. Zein, Reza Audina Putri
Nanotechnology is a fast expanding field with several applications in science, engineering, healthcare, pharmaceutical, and other areas. Nanoparticles (NP) are frequently produced through a variety of physical and chemical methods. Recently, green synthesis technologies that are more simple, sustainable, and cost-effective have been developed. The environmentally friendly/sustainable synthesis of titanium dioxide nanoparticles (TiO2 NPs) has been in great demand in the previous quarter. Bioactive components found in organisms, such as plants, facilitate the processes of bio-reduction and restriction. This review described green synthesis of TiO2 NPs, the photocatalytical uses, and managing the larvicidal activity of disease-spreading mosquitoes. Various natural reducing agents including proteins, enzymes, phytochemicals, and others, are involved in the synthesis of TiO2 NPs. Current research findings and future concerns in a viable platform based on biologically meditated TiO2 nanostructures for industrial applications.
{"title":"Advancement in Green Synthesis of Titanium Dioxide : Photocatalytic and Larvicidal Activities – A review","authors":"D. Deliza, Safni Safni, R. Zein, Reza Audina Putri","doi":"10.33394/hjkk.v12i1.10655","DOIUrl":"https://doi.org/10.33394/hjkk.v12i1.10655","url":null,"abstract":"Nanotechnology is a fast expanding field with several applications in science, engineering, healthcare, pharmaceutical, and other areas. Nanoparticles (NP) are frequently produced through a variety of physical and chemical methods. Recently, green synthesis technologies that are more simple, sustainable, and cost-effective have been developed. The environmentally friendly/sustainable synthesis of titanium dioxide nanoparticles (TiO2 NPs) has been in great demand in the previous quarter. Bioactive components found in organisms, such as plants, facilitate the processes of bio-reduction and restriction. This review described green synthesis of TiO2 NPs, the photocatalytical uses, and managing the larvicidal activity of disease-spreading mosquitoes. Various natural reducing agents including proteins, enzymes, phytochemicals, and others, are involved in the synthesis of TiO2 NPs. Current research findings and future concerns in a viable platform based on biologically meditated TiO2 nanostructures for industrial applications.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"593 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140417283","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：