Pub Date : 2022-06-24DOI: 10.33394/hjkk.v10i1.5176
Meri Meri, Eny Enawaty, M. Masriani, Rini Muharini, M. Ulfah
Limited face-to-face learning (PTMT) has been carried out but the implementation of the learning process which lasts 30 minutes for one meeting in learning makes the teacher only convey essential material. Face-to-face learning is more effective than online learning. Motivation is one of the important factors in the success of a learning. This study aims (1) to determine the science learning motivation of class VIII students of SMPN 4 Pontianak even semester 2021-2022 during PTMT, (2) to determine the relationship between learning motivation and science learning outcomes for class VIII students at SMPN 4 Pontianak even semester 2021-2022 during PTMT. The research subjects were students of class VIII SMPN 4 Pontianak. The research method is descriptive with a quantitative approach. Science learning outcomes are obtained from the average daily science test scores of students. This research is a descriptive research with a quantitative approach. Data collection techniques use direct, indirect, and documentation communication. Descriptive statistics were used as a data analysis technique. The results showed that the average learning motivation was 70.81% while the percentage of learning outcomes was 81.4%. Both motivation and learning outcomes are included in the high category. The results of the Spearman's Rho test between science learning motivation and science learning outcomes obtained (r = 0.019) < ( r = 0.05) which means that there is a relationship between motivation and science learning outcomes for SMPN 4 Pontianak students, namely the higher the motivation, the higher the student learning outcomes. the higher it is. The results of this study can be concluded that the science learning motivation of SMPN 4 Pontianak students in the even semester of 2021-2022 is high with a percentage of 70.81%. There is a significant and positive relationship between learning motivation and learning outcomes for science students of class VIII SMPN 4 Pontianak even semester 2021-2022 during PTMT.
{"title":"Hubungan Motivasi dengan Hasil Belajar IPA Siswa Selama Pembelajaran Tatap Muka Terbatas","authors":"Meri Meri, Eny Enawaty, M. Masriani, Rini Muharini, M. Ulfah","doi":"10.33394/hjkk.v10i1.5176","DOIUrl":"https://doi.org/10.33394/hjkk.v10i1.5176","url":null,"abstract":"Limited face-to-face learning (PTMT) has been carried out but the implementation of the learning process which lasts 30 minutes for one meeting in learning makes the teacher only convey essential material. Face-to-face learning is more effective than online learning. Motivation is one of the important factors in the success of a learning. This study aims (1) to determine the science learning motivation of class VIII students of SMPN 4 Pontianak even semester 2021-2022 during PTMT, (2) to determine the relationship between learning motivation and science learning outcomes for class VIII students at SMPN 4 Pontianak even semester 2021-2022 during PTMT. The research subjects were students of class VIII SMPN 4 Pontianak. The research method is descriptive with a quantitative approach. Science learning outcomes are obtained from the average daily science test scores of students. This research is a descriptive research with a quantitative approach. Data collection techniques use direct, indirect, and documentation communication. Descriptive statistics were used as a data analysis technique. The results showed that the average learning motivation was 70.81% while the percentage of learning outcomes was 81.4%. Both motivation and learning outcomes are included in the high category. The results of the Spearman's Rho test between science learning motivation and science learning outcomes obtained (r = 0.019) < ( r = 0.05) which means that there is a relationship between motivation and science learning outcomes for SMPN 4 Pontianak students, namely the higher the motivation, the higher the student learning outcomes. the higher it is. The results of this study can be concluded that the science learning motivation of SMPN 4 Pontianak students in the even semester of 2021-2022 is high with a percentage of 70.81%. There is a significant and positive relationship between learning motivation and learning outcomes for science students of class VIII SMPN 4 Pontianak even semester 2021-2022 during PTMT.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131413616","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 : 2022-06-24DOI: 10.33394/hjkk.v10i1.4465
Leni Susanti, Raudhatul Fadhilah*, Tuti Kurniati
The practicum method in chemistry subjects, especially in chemical equilibrium material, is still rare and has never been carried out in schools due to the unavailability of adequate practicum tools. Therefore, a practical tool is needed to make it more straightforward for understudies to comprehend the idea of equilibrium shift. This study aims to develop a chemical equilibrium practicum tool on the sub-material of equilibrium shift that is legitimate, commonsense and powerful. This sort of exploration is Innovative work (Research and development) model ADDIE (Investigation, Plan, Improvement, Execution, Assessment). The research subjec was 33 students from two private schools in Pontianak, with 15 and 18 students, respectively. The results showed that the chemical equilibrium practicum instrument created from the material and media viewpoints was pronounced substantial with a typical legitimacy worth of 0.87 and 0.9 with both extremely legitimate rules. The consequences of the reasonableness test got extremely down to earth models with a worth of 98.23%. The part of viability by involving the N-Gain esteem in field preliminaries, the N-Gain esteem is 0.8 with extremely high measures. In this manner the synthetic balance practicum instrument created is doable to be utilized as a learning medium in the sub-material of equilibrium shift.
{"title":"Pengembangan Alat Praktikum Kesetimbangan Kimia Untuk Siswa SMA di Pontianak","authors":"Leni Susanti, Raudhatul Fadhilah*, Tuti Kurniati","doi":"10.33394/hjkk.v10i1.4465","DOIUrl":"https://doi.org/10.33394/hjkk.v10i1.4465","url":null,"abstract":"The practicum method in chemistry subjects, especially in chemical equilibrium material, is still rare and has never been carried out in schools due to the unavailability of adequate practicum tools. Therefore, a practical tool is needed to make it more straightforward for understudies to comprehend the idea of equilibrium shift. This study aims to develop a chemical equilibrium practicum tool on the sub-material of equilibrium shift that is legitimate, commonsense and powerful. This sort of exploration is Innovative work (Research and development) model ADDIE (Investigation, Plan, Improvement, Execution, Assessment). The research subjec was 33 students from two private schools in Pontianak, with 15 and 18 students, respectively. The results showed that the chemical equilibrium practicum instrument created from the material and media viewpoints was pronounced substantial with a typical legitimacy worth of 0.87 and 0.9 with both extremely legitimate rules. The consequences of the reasonableness test got extremely down to earth models with a worth of 98.23%. The part of viability by involving the N-Gain esteem in field preliminaries, the N-Gain esteem is 0.8 with extremely high measures. In this manner the synthetic balance practicum instrument created is doable to be utilized as a learning medium in the sub-material of equilibrium shift.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131725234","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 : 2022-06-24DOI: 10.33394/hjkk.v10i1.5080
Baiq Rina Amalia Safitri, Pahriah Pahriah, M. Fuaddunnazmi
This research has a core objective, namely to find out the effectiveness of the application of Zenius-based learning videos in improving students' understanding of chemical concepts. This research is included in the category of experimental type quantitative research. Meanwhile, the research method chosen was One Group Pretest-Posttest Design, which means that only one research group was used. A total of 17 students were selected from class X and XI MA Anshor Beber as the research population using saturated sampling technique or population research. The data analysis technique used in this study combines descriptive data analysis for the measurement of the mean and inferential statistics for testing the significance of the t-test value. The significance of the Ngain value was tested using a t-test (paired samples t-test) and the results were used to interpret the extent of students' understanding of chemical concepts. The average N-gain of students' conceptual understanding after the application of Zenius-based learning videos is 0.7 with a medium category. The average understanding of students' concepts after treatment (77) was proven to be significantly greater than before being given treatment (34) based on the value of t count = 28.8 which was greater than tcritical = 2.1 for dk = 15 with a p significance value of 0.000. Therefore, it can be concluded that zenius.net-based learning videos are effective in increasing students' understanding of concepts.
{"title":"Efektivitas Video Pembelajaran Berbasis Zenius.Net Dalam Meningkatkan Pemahaman Konsep Kimia Siswa","authors":"Baiq Rina Amalia Safitri, Pahriah Pahriah, M. Fuaddunnazmi","doi":"10.33394/hjkk.v10i1.5080","DOIUrl":"https://doi.org/10.33394/hjkk.v10i1.5080","url":null,"abstract":"This research has a core objective, namely to find out the effectiveness of the application of Zenius-based learning videos in improving students' understanding of chemical concepts. This research is included in the category of experimental type quantitative research. Meanwhile, the research method chosen was One Group Pretest-Posttest Design, which means that only one research group was used. A total of 17 students were selected from class X and XI MA Anshor Beber as the research population using saturated sampling technique or population research. The data analysis technique used in this study combines descriptive data analysis for the measurement of the mean and inferential statistics for testing the significance of the t-test value. The significance of the Ngain value was tested using a t-test (paired samples t-test) and the results were used to interpret the extent of students' understanding of chemical concepts. The average N-gain of students' conceptual understanding after the application of Zenius-based learning videos is 0.7 with a medium category. The average understanding of students' concepts after treatment (77) was proven to be significantly greater than before being given treatment (34) based on the value of t count = 28.8 which was greater than tcritical = 2.1 for dk = 15 with a p significance value of 0.000. Therefore, it can be concluded that zenius.net-based learning videos are effective in increasing students' understanding of concepts.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130295780","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 : 2022-06-24DOI: 10.33394/hjkk.v10i1.4611
S. Inayah, I. W. Dasna, Habiddin Habiddin
Green chemistry in chemistry learning has been a central issue in chemistry education research the last ten years. The objectives of this literature review are: a) to map green chemistry research topics in chemistry learning the last ten years; b) to find out the opportunity for the implementation of Green chemistry in chemistry learning. The research method used is a systematic literature review of articles published in the scopus journal obtained from the Scopus database for the last 10 years (2011-2021). Article searches use titles, abstracts or keywords that meet logical conditions ("Green Chemistry") or ("Chemistry"). The population of this study was 200 articles published in the Scopus database and the sample used was 19 articles. The findings show that: a) the trend of the most topics discussing green chemistry in organic chemistry by 68% and green chemistry in environmental chemistry by 16%, b) green chemistry provides a very large opportunity in chemistry learning. Thus, it can be concluded that the implementation of green chemistry in chemistry learning is very important and needed in preventing environmental pollution.
{"title":"Implementasi Green Chemistry Dalam Pembelajaran Kimia: Literatur Review","authors":"S. Inayah, I. W. Dasna, Habiddin Habiddin","doi":"10.33394/hjkk.v10i1.4611","DOIUrl":"https://doi.org/10.33394/hjkk.v10i1.4611","url":null,"abstract":"Green chemistry in chemistry learning has been a central issue in chemistry education research the last ten years. The objectives of this literature review are: a) to map green chemistry research topics in chemistry learning the last ten years; b) to find out the opportunity for the implementation of Green chemistry in chemistry learning. The research method used is a systematic literature review of articles published in the scopus journal obtained from the Scopus database for the last 10 years (2011-2021). Article searches use titles, abstracts or keywords that meet logical conditions (\"Green Chemistry\") or (\"Chemistry\"). The population of this study was 200 articles published in the Scopus database and the sample used was 19 articles. The findings show that: a) the trend of the most topics discussing green chemistry in organic chemistry by 68% and green chemistry in environmental chemistry by 16%, b) green chemistry provides a very large opportunity in chemistry learning. Thus, it can be concluded that the implementation of green chemistry in chemistry learning is very important and needed in preventing environmental pollution.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134465473","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 : 2022-06-24DOI: 10.33394/hjkk.v10i1.4884
Nurhamidah Nurhamidah, Nadia Amida, Rina Elvia
Indonesia is one of the countries affected by the Covid-19 outbreak, where this situation greatly affects all aspects of life, including the field of education. The learning process is carried out online or in a network to minimize the spread of this virus, which makes learning effectiveness less than optimal, especially for material in the field of science. Selection of the right strategy and match the material is very necessary. The purpose of this study was to see the activities and learning outcomes of students using a blended learning-based discovery model on the subject of the Basic Laws of Chemistry. This research is a classroom action research conducted in two cycles. The research subjects were 26 students of the Biology Education Study Program in the first semester of the 2021/2022 class. The research data were obtained through observation sheets and cognitive tests using a test instrument in the form of a posttest. Based on the data analysis, it shows that the activities and student learning outcomes have increased from 54.62% and 66.25 in the first cycle to 87.69% and 80.48 in the second cycle. The students' understanding of the learning materials has included very good criteria.
{"title":"Model Pembelajaran Discovery Berbasis Blended Learning untuk Meningkatkan Aktivitas dan Hasil Belajar Kimia Mahasiswa","authors":"Nurhamidah Nurhamidah, Nadia Amida, Rina Elvia","doi":"10.33394/hjkk.v10i1.4884","DOIUrl":"https://doi.org/10.33394/hjkk.v10i1.4884","url":null,"abstract":"Indonesia is one of the countries affected by the Covid-19 outbreak, where this situation greatly affects all aspects of life, including the field of education. The learning process is carried out online or in a network to minimize the spread of this virus, which makes learning effectiveness less than optimal, especially for material in the field of science. Selection of the right strategy and match the material is very necessary. The purpose of this study was to see the activities and learning outcomes of students using a blended learning-based discovery model on the subject of the Basic Laws of Chemistry. This research is a classroom action research conducted in two cycles. The research subjects were 26 students of the Biology Education Study Program in the first semester of the 2021/2022 class. The research data were obtained through observation sheets and cognitive tests using a test instrument in the form of a posttest. Based on the data analysis, it shows that the activities and student learning outcomes have increased from 54.62% and 66.25 in the first cycle to 87.69% and 80.48 in the second cycle. The students' understanding of the learning materials has included very good criteria.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129621491","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}
To understand microscopic representation, scientific reasoning skill (SRS) is required. Unfortunately, some research has reported that many senior high school students have not developed formal thinking ability which is necessary to support the development of SRS. Research results reported that guided inquiry is a mode of learning effective in developing students’ formal thinking ability. Therefore, guided inquiry is also expected effective in developing SRS.This study, thus, aimed to identifythe effect of students’ scientific reasoning skill on their achievement. Participants were selected from two classes of grade X Science and Math students at SMA Laboratorium UM. They were matched based on their scientific reasoning skill test score. Two similar groups were obtained where each group consisted of 6 students with concrete level, 6 students with low formal level, and 4 students with upper formal level. A group of students were taught using guided inquiry learning. Data collected was the students’ score on scientific reasoning skill (SRS). The reliability of Bahasa Indonesia version test measured was 0,74. The data was analyzed using ANOVA. The results of this study showed that the students who were at the upper formal level of SRS had better achievement than those who were at the low formal and concrete level of SRS.
{"title":"Pengaruh Kemampuan Berpikir Ilmiah dalam Pembelajaran Inkuiri Terbimbing terhadap Hasil Belajar Siswa","authors":"T. Astutik","doi":"10.33394/hjkk.v9i2.4432","DOIUrl":"https://doi.org/10.33394/hjkk.v9i2.4432","url":null,"abstract":"To understand microscopic representation, scientific reasoning skill (SRS) is required. Unfortunately, some research has reported that many senior high school students have not developed formal thinking ability which is necessary to support the development of SRS. Research results reported that guided inquiry is a mode of learning effective in developing students’ formal thinking ability. Therefore, guided inquiry is also expected effective in developing SRS.This study, thus, aimed to identifythe effect of students’ scientific reasoning skill on their achievement. Participants were selected from two classes of grade X Science and Math students at SMA Laboratorium UM. They were matched based on their scientific reasoning skill test score. Two similar groups were obtained where each group consisted of 6 students with concrete level, 6 students with low formal level, and 4 students with upper formal level. A group of students were taught using guided inquiry learning. Data collected was the students’ score on scientific reasoning skill (SRS). The reliability of Bahasa Indonesia version test measured was 0,74. The data was analyzed using ANOVA. The results of this study showed that the students who were at the upper formal level of SRS had better achievement than those who were at the low formal and concrete level of SRS.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125396873","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}
Copper is one of the toxic metals for health and the environment. In humans, high doses of copper metal can cause vomiting, dizziness, weakness, kidney and liver symptoms, anemia, to coma, and in severe cases, the patient can die. Judging from the dangers, proper waste management is needed to reduce the side effects of these pollutants. A practical and inexpensive technology is an adsorption adsorption technique using an efficient and easily available natural adsorbent, namely tofu dregs. The protein contained in tofu is one of the reasons for using tofu waste as an adsorbent. The absorption of amino acids that form two-charged ions (zwitter ions) is owned by proteins. Toxic metal can be bound to protein as metallotionein. The study consisted of four stages, namely (1) Analysis of initial copper content in silver craft waste; (2) Preparation of tofu waste adsorbent; (3) Characterization of tofu dregs adsorbent; and (4) variation of adsorption contact time. The study used a laboratory-scale experimental method. The adsorbent was contacted with the sample using a magnetic stirrer at various times. Instrument Atomic Absorption Spectrometer was used for the analysis of copper metal content and identification of its functional groups using an infrared spectrometer with the result that tofu waste has functional groups -OH, NH (stretching), CH (aliphatic), C=O, -OH (bending vibrations). , and CO. Copper metal content obtained is 19.5979 ppm. The optimum adsorption time was reached at 120 minutes with an optimum adsorption efficiency of 54.88%.
{"title":"Efektivitas Ampas Tahu Sebagai Adsorben Logam Tembaga Pada Air Limbah Industri","authors":"Dahlia Rosma Indah, Husnul Hatimah, Hulyadi Hulyadi","doi":"10.33394/hjkk.v9i2.4373","DOIUrl":"https://doi.org/10.33394/hjkk.v9i2.4373","url":null,"abstract":"Copper is one of the toxic metals for health and the environment. In humans, high doses of copper metal can cause vomiting, dizziness, weakness, kidney and liver symptoms, anemia, to coma, and in severe cases, the patient can die. Judging from the dangers, proper waste management is needed to reduce the side effects of these pollutants. A practical and inexpensive technology is an adsorption adsorption technique using an efficient and easily available natural adsorbent, namely tofu dregs. The protein contained in tofu is one of the reasons for using tofu waste as an adsorbent. The absorption of amino acids that form two-charged ions (zwitter ions) is owned by proteins. Toxic metal can be bound to protein as metallotionein. The study consisted of four stages, namely (1) Analysis of initial copper content in silver craft waste; (2) Preparation of tofu waste adsorbent; (3) Characterization of tofu dregs adsorbent; and (4) variation of adsorption contact time. The study used a laboratory-scale experimental method. The adsorbent was contacted with the sample using a magnetic stirrer at various times. Instrument Atomic Absorption Spectrometer was used for the analysis of copper metal content and identification of its functional groups using an infrared spectrometer with the result that tofu waste has functional groups -OH, NH (stretching), CH (aliphatic), C=O, -OH (bending vibrations). , and CO. Copper metal content obtained is 19.5979 ppm. The optimum adsorption time was reached at 120 minutes with an optimum adsorption efficiency of 54.88%.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122731544","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}
Aulia Nurul Aziza, Dedi Irwandi, Evi Sapinatul Bahriah
Students have problems in understanding Students have problems in understanding of Molecule Shapes Theory, this can be caused by the lack of visualization of the spatial structure of molecules. So that requires teachers to be creative and innovative, for example by utilizing technology-based learning media. One of the technology-based media that can be used to deliver molecular form material is the PhET simulation media. The purpose of this research is to see the effectiveness of PhET simulation media on mastering the concept of molecular shapes. The research method used was quasi-experimental. The research design used was nonequivalent control group design. The sample in this study were students of class X IPA 1 totaling 39 students and X IPA 2 totaling 40 students. The research instrument used was a multiple choice test to see student learning outcomes and a questionnaire to determine student responses to the use of PhET media. Data were analyzed using SPSS version 25. Research results from the Independent Sample T-Test hypothesis test showed that learning using the PhET simulation media in the experimental class was more effective in improving students' understanding of concepts in molecular form material compared to book media.
学生在理解分子形状理论方面存在问题，这可能是由于缺乏对分子空间结构的可视化。这就要求教师具有创造性和创新性，例如利用基于技术的学习媒体。可用于传递分子形式材料的技术基础介质之一是PhET模拟介质。本研究的目的是了解PhET模拟介质在掌握分子形状概念方面的有效性。采用准实验研究方法。本研究采用非等效对照组设计。本研究的样本为X IPA 1班39名学生和X IPA 2班40名学生。使用的研究工具是一个多项选择测试，以了解学生的学习成果和一个问卷调查，以确定学生对使用PhET媒体的反应。数据分析采用SPSS version 25。独立样本t检验假设检验的研究结果表明，在实验课上使用PhET模拟媒体学习比使用书本媒体学习更能有效地提高学生对分子形态材料概念的理解。
{"title":"Simulasi PHET: Efektivitasnya terhadap pemahaman konsep bentuk molekul","authors":"Aulia Nurul Aziza, Dedi Irwandi, Evi Sapinatul Bahriah","doi":"10.33394/hjkk.v9i2.4365","DOIUrl":"https://doi.org/10.33394/hjkk.v9i2.4365","url":null,"abstract":"Students have problems in understanding Students have problems in understanding of Molecule Shapes Theory, this can be caused by the lack of visualization of the spatial structure of molecules. So that requires teachers to be creative and innovative, for example by utilizing technology-based learning media. One of the technology-based media that can be used to deliver molecular form material is the PhET simulation media. The purpose of this research is to see the effectiveness of PhET simulation media on mastering the concept of molecular shapes. The research method used was quasi-experimental. The research design used was nonequivalent control group design. The sample in this study were students of class X IPA 1 totaling 39 students and X IPA 2 totaling 40 students. The research instrument used was a multiple choice test to see student learning outcomes and a questionnaire to determine student responses to the use of PhET media. Data were analyzed using SPSS version 25. Research results from the Independent Sample T-Test hypothesis test showed that learning using the PhET simulation media in the experimental class was more effective in improving students' understanding of concepts in molecular form material compared to book media.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128959691","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}
Pandemi Covid-19 membuat sistem pembelajaran di kelas menjadi terbatas sehingga siswa dituntut untuk belajar lebih mandiri. Akan tetapi, sumber belajar memadai yang mendukung kemandirian belajar kimia di SMAN 1 Batulayar masih sangat kurang. Penelitian ini bertujuan untuk mengembangkan modul pembelajaran kontekstual terintegrasi Augmented Reality untuk meningkatkan keterampilan berpikir kritis siswa pada materi ikatan kimia. Penelitian ini termasuk metode Penelitian dan Pengembangan. Tahapan penelitian mengikuti desain pengembangan model ADDIE yang terdiri dari lima tahap, yaitu analisis (Analysis), desain (Design), pengembangan (Development), penerapan (Implementation), dan evaluasi (Evaluation). Subyek penelitian adalah siswa SMAN 1 Batulayar yang berjumlah 40 orang. Instrumen dalam penelitian ini adalah angket dan tes uraian. Data kelayakan modul dan tanggapan siswa diperoleh dari angket lalu dianalisis berdasarkan persentase, sedangkan data keterampilan berpikir kritis didapatkan dari tes uraian lalu dianalisis menggunakan paired sample t-test dan skor gain ternormalisasi (N-gain). Adapun hasil penelitian ini antara lain: 1) modul dinyatakan sangat layak dengan rerata skor 90%, 2) modul dapat meningkatkatkan keterampilan berpikir kritis siswa yang ditunjukkan oleh nilai signifikan 0,00 pada taraf kepercayaan 95% dan skor N-gain 58% dengan kategori sedang, dan 3) siswa memberikan tanggapan sangat baik terhadap proses pembelajaran menggunakan modul. Dengan demikian, modul pembelajaran kontekstual terintegrasi augmented reality telah berhasil dikembangkan.
{"title":"Pengembangan Modul Pembelajaran Kontekstual Terintegrasi Augmented Reality untuk Meningkatkan Keterampilan Berpikir Kritis Siswa","authors":"Ratna Azizah Mashami, Khaeruman Khaeruman, Ahmadi Ahmadi","doi":"10.33394/hjkk.v9i2.4500","DOIUrl":"https://doi.org/10.33394/hjkk.v9i2.4500","url":null,"abstract":"Pandemi Covid-19 membuat sistem pembelajaran di kelas menjadi terbatas sehingga siswa dituntut untuk belajar lebih mandiri. Akan tetapi, sumber belajar memadai yang mendukung kemandirian belajar kimia di SMAN 1 Batulayar masih sangat kurang. Penelitian ini bertujuan untuk mengembangkan modul pembelajaran kontekstual terintegrasi Augmented Reality untuk meningkatkan keterampilan berpikir kritis siswa pada materi ikatan kimia. Penelitian ini termasuk metode Penelitian dan Pengembangan. Tahapan penelitian mengikuti desain pengembangan model ADDIE yang terdiri dari lima tahap, yaitu analisis (Analysis), desain (Design), pengembangan (Development), penerapan (Implementation), dan evaluasi (Evaluation). Subyek penelitian adalah siswa SMAN 1 Batulayar yang berjumlah 40 orang. Instrumen dalam penelitian ini adalah angket dan tes uraian. Data kelayakan modul dan tanggapan siswa diperoleh dari angket lalu dianalisis berdasarkan persentase, sedangkan data keterampilan berpikir kritis didapatkan dari tes uraian lalu dianalisis menggunakan paired sample t-test dan skor gain ternormalisasi (N-gain). Adapun hasil penelitian ini antara lain: 1) modul dinyatakan sangat layak dengan rerata skor 90%, 2) modul dapat meningkatkatkan keterampilan berpikir kritis siswa yang ditunjukkan oleh nilai signifikan 0,00 pada taraf kepercayaan 95% dan skor N-gain 58% dengan kategori sedang, dan 3) siswa memberikan tanggapan sangat baik terhadap proses pembelajaran menggunakan modul. Dengan demikian, modul pembelajaran kontekstual terintegrasi augmented reality telah berhasil dikembangkan.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115142891","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}
Chemical insecticide products had a negative impact on environment and health. One of the plants that can be used as an herbal insecticide is the betel plant. the red betel plant leaves are contain chemical compounds that potentialy toxic to insects, including essential oils, saponins, tannins, alkaloids and flavonoids. Black ants (Lasius fuliginosus L.) are insects that can have serious consequences if not treated, contaminate food and can transmit disease between humans and animals. The purpose of this research is to knowwing concentration is effective for black ant mortality. This research was connducted at Biology Pharmacy Laboratory of Nahdlatul Wathan University Mataram. This study consisted of 3 treatments and 2 controls (triplo for each treatment). Each repetition uses five black ants. The parameter of this study is the number of deaths per hour within three hours of the experiment. Observational data showed red betel leaf extract (Piper ornatum L) at concentrations of 25%, 50% and 75% had a significant effect on the mortality of black ants (Lasius fuliginosus L.). The higher the concentration, the more effective it is against black ant mortality. Concentration of 75% (treatment P3) has the highest effectiveness, which is 93.33%. The conclusion obtained from this study is that red betel leaf has the potential as an herbal insecticide on mortality of black ants, because red betel leaf has an effect on mortality of black ants at each concentration.
{"title":"Potensi Eksudat Daun Sirih Merah (Piper ornatum L.) sebagai Insektisida Herbal terhadap Mortalitas Semut Hitam","authors":"E. wahyuni, Rizki Nugrahani","doi":"10.33394/hjkk.v9i2.4409","DOIUrl":"https://doi.org/10.33394/hjkk.v9i2.4409","url":null,"abstract":"Chemical insecticide products had a negative impact on environment and health. One of the plants that can be used as an herbal insecticide is the betel plant. the red betel plant leaves are contain chemical compounds that potentialy toxic to insects, including essential oils, saponins, tannins, alkaloids and flavonoids. Black ants (Lasius fuliginosus L.) are insects that can have serious consequences if not treated, contaminate food and can transmit disease between humans and animals. The purpose of this research is to knowwing concentration is effective for black ant mortality. This research was connducted at Biology Pharmacy Laboratory of Nahdlatul Wathan University Mataram. This study consisted of 3 treatments and 2 controls (triplo for each treatment). Each repetition uses five black ants. The parameter of this study is the number of deaths per hour within three hours of the experiment. Observational data showed red betel leaf extract (Piper ornatum L) at concentrations of 25%, 50% and 75% had a significant effect on the mortality of black ants (Lasius fuliginosus L.). The higher the concentration, the more effective it is against black ant mortality. Concentration of 75% (treatment P3) has the highest effectiveness, which is 93.33%. The conclusion obtained from this study is that red betel leaf has the potential as an herbal insecticide on mortality of black ants, because red betel leaf has an effect on mortality of black ants at each concentration.","PeriodicalId":346446,"journal":{"name":"Hydrogen: Jurnal Kependidikan Kimia","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122855024","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}
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