JCER (Journal of Chemistry Education Research)最新文献

{"title":"ANALYSIS OF STUDENT SATISFACTION IN ANALYTICAL CHEMISTRY COURSE","authors":"Maria Aloisia Uron Leba, Maria Benedikta Tukan, Faderina Komisia","doi":"10.26740/jcer.v4n2.p93-101","DOIUrl":"https://doi.org/10.26740/jcer.v4n2.p93-101","url":null,"abstract":"The purpose of this research to 1). know the level of student satisfaction, 2). Know the achievement of lecturer performance, 3).study the best performance of lecturers, 4). Study the aspects that need to be improved in lectures. The sample of this research was the 3rd semester students of the Chemistry Education Study Program of Unika Widya Mandira who programed analytical chemistry I. The technique of data collection used was a questionnaire. This data was analyzed descriptively quantitative. Based on the results of data analysis, 58.6% of students said they were very satisfied and 41.4% said they were satisfied with the lecturers' performance. The achievement of lecturers' performance is included in the excellent category with an average of 87%. There are eight aspects that become the best performance and five aspects that need to be improved in further lectures.","PeriodicalId":444789,"journal":{"name":"JCER (Journal of Chemistry Education Research)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129107192","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}

{"title":"The Practicality and Effectiveness of Educational Game Developed using Lectora Inspire in Chemical Equilibrium","authors":"Rahmah Hidayani, A. Sabekti, Inelda Yulita","doi":"10.26740/jcer.v4n2.p58-62","DOIUrl":"https://doi.org/10.26740/jcer.v4n2.p58-62","url":null,"abstract":"The aim of this study was to determine the practicality and effectiveness of educational game media using the Lectora Inspire application on chemical equilibrium. This study used research and development (R&D) methods, with the ADDIE research model, namely Analysis, Design, Development, Implementation, and Evaluation. In this study only the Implementation and Evaluation stage was carried out. The test subjects in this study were 2 teachers and 20 students of class XI IPA 2 Madrasah Aliyah Negeri Tanjungpinang. The results of practicality tests using teacher questionnaire responses was 88% with the category of very practical and in terms of student responses, it was obtained a percentage of 84% with very practical criteria. In the aspect of effectiveness obtained learning outcomes with pretest and posttest scores N-Gain 0.5 results in the medium category. Based on the results of evaluations conducted by educative game media using the Lectora Inspire application on chemical equilibrium, it is declared practical, and effective for use.","PeriodicalId":444789,"journal":{"name":"JCER (Journal of Chemistry Education Research)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128031592","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}

{"title":"THE VALIDITY MULTIMEDIA INTERACTIVE BASES ANDROID ON IONIC BOND MATERIAL","authors":"Muhammad Syarifuddin, Kusumawati Dwiningsih","doi":"10.26740/jcer.v4n2.p63-70","DOIUrl":"https://doi.org/10.26740/jcer.v4n2.p63-70","url":null,"abstract":"This research is aims to describe the validity of interactive multimedia based on Android in the ion bonding sub material. This research uses Thiagarajan's 4-D development research consisting of Define; Design; Development and Disseminate. However, this research is limited to the Development stage of Thiagarajan in Ibrahim (2014). Multimedia validity is reviewed from the aspect of content validity and construct validity. This multimedia was validated by 2 Unesa chemistry lecturers and 1 chemistry teacher with the research instrument used in the form of a multimedia validation sheet then the results of the validation resulted in a validation score. Based on data analysis, it can be concluded that android-based interactive multimedia on the ion bond sub-material is valid for use with percentage content validation and construct validity respectively 91.85% and 89.61% with highly valid criteria.","PeriodicalId":444789,"journal":{"name":"JCER (Journal of Chemistry Education Research)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133906232","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}

{"title":"THE CORRELATION OF STUDENTS’ INTEREST TO CHARACTER AND THEIR ACHIEVEMENT ON ATOMIC STRUCTURE TOPIC","authors":"Yohanita Nirmalasari","doi":"10.26740/jcer.v4n2.p77-82","DOIUrl":"https://doi.org/10.26740/jcer.v4n2.p77-82","url":null,"abstract":"This research aims to know 1) students’ interest, 2) discipline character, 3) students’ achievement, 4) correlation between students’ interest to discipline character and their achievement on atomic structure topic. Sample research were 20 students from class A of SMAK St. Petrus Kewapante which is collected randomly. Teaching method used cooperative learning type number head together (NHT). The technique of data collection was essay test, questionnaires and observation, which analyzed by descriptive quantitative and multiple linear regression. The result showed 1) based on teacher observation data indicated students’ interest as best category (90%) and good category (10). 2) students’ disciplinary as best category (80%) and good category (20%), while 100% as best category based on teacher’s observation data. 3) students’ achievements result showed average value in 51,75 and 80,50 as pre-test and post-test result respectively. 4) there is no correlation between students’ interesting to disciplinary character and their achievement’s in learning chemistry.","PeriodicalId":444789,"journal":{"name":"JCER (Journal of Chemistry Education Research)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125889212","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}

{"title":"LEARNING OF REACTION RATES WITH NESTED CURRICULAR ARRANGEMENT WHICH IS COMBINED WITH CONNECTED CURRICULAR ARRANGEMENT TO IMPROVE CRITICAL THINKING SKILLS OF THE STUDENTS","authors":"Khoirotus Sa'adah, S. Suyono","doi":"10.26740/jcer.v4n1.p1-7","DOIUrl":"https://doi.org/10.26740/jcer.v4n1.p1-7","url":null,"abstract":"Abstract. This study aims to evaluate a learning of reaction rates with nested curricular arrangement which is combined with connected curricular arrangement to improve critical thinking skills of the students. The evaluation of this study is based on the result of data collecting toward the implementation of learning, students’ activities, learning outcomes, critical thinking skills, and students’ responses. This study is conducted using scientific inquiry. The research design used in this study is one group pretest-posttest design including pre-experimental research. The subjects of this study are 36 X graders of MIPA 8 at SMAN 1 Manyar Gresik. The result of this study shows that the implementation of a learning of reaction rates with nested curricular arrangement which is combined with connected curricular arrangement to improve critical thinking skills of the students is in very high value category with percentage of agreement around ≥75% and value of the relevant students’ activity is greater than the percentage of the irrelevant students’ activity so that it has a better category. The students’ learning outcomes and critical thinking skills have significantly improved after conducting a learning about reaction rates with nested curricular arrangement which is combined with connected curricular arrangement which is analyzed using t-test. However, there are some students get post-test score under the expected standard value. This learning about reaction rates with nested curricular arrangement which is combined with connected curricular arrangement receives a positive responses from the students of 87, 22% by collecting data using a questionnaire response.Keywords: Critical Thinking Skills, Inquiry, Nested, Connected","PeriodicalId":444789,"journal":{"name":"JCER (Journal of Chemistry Education Research)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133715020","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}

{"title":"TRAIN OF ABILITY OF CHEMISTRY TEACHERS TO MAKE OF HIGHER ORDER THINKING SKILLS LEARNING INDICATORS","authors":"Ismono Ismono","doi":"10.26740/jcer.v4n1.p43-50","DOIUrl":"https://doi.org/10.26740/jcer.v4n1.p43-50","url":null,"abstract":"Based on the 2013 Curriculum (K-13), the ability to think at a higher level is an ability that must be possessed by every teacher, especially chemistry teachers. This study aims to determine the ability of teachers in compiling indicators of achievement of learning outcomes that require high order thinking skills. This research was conducted on Chemistry teachers who took part in professional education activities of teachers in positions ranging from batch 1 to 4, in 2019. There were 40 teachers who were subject of research in Chemistry. The results obtained are based on the results of testing about 2% of teachers who have been able to compile indicators of learning outcomes based on semi-high thinking (C3). Teachers after attending training above 97% are able to compile indicators of learning outcomes based on higher order thinking (C4). The increase in n-gains increases with a high category","PeriodicalId":444789,"journal":{"name":"JCER (Journal of Chemistry Education Research)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124780879","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}

{"title":"DEVELOPMENT OF ETHNOSAINS-BASED LEARNING MODULE THEME ACID AND BASE FOR SENIOR HIGH SCHOOL CLASS XI","authors":"Fiesta Iqlima Maytrea, Irah Namirah, Solfarina Solfarina","doi":"10.26740/jcer.v4n1.p16-22","DOIUrl":"https://doi.org/10.26740/jcer.v4n1.p16-22","url":null,"abstract":"This research-based on decreasing cultural identity because of the process of globalization and limited modules used in learning that integrated with culture. This research aims to determine the validity of ethnoscience based learning modules with the theme of acids and bases and to find out the response of class XI students to the modules used. The research method is Research and Development (R&D) which includes several stages: problem identification, data collection, design module, design validation, design revisions, small-scale trials, and final module. The results showed that the modules developed according to BSNP valid with Aiken calculations for aspects of content and media were 0.99 and 0.97. As for the responses of students in the high, medium and low groups, and the percentage 92%, 93%, and 92% which are included in the category very good. The developed module has proven valid to use in learning.","PeriodicalId":444789,"journal":{"name":"JCER (Journal of Chemistry Education Research)","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129162333","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}

{"title":"DEVELOPMENT OF STUDENT WORKSHEET BASED PQ4R ON CHEMICAL BOND MATERIALS CLASS X HIGH SCHOOL","authors":"Poppy Andaeri, A. M. Noer, R. Linda","doi":"10.26740/jcer.v4n1.p8-15","DOIUrl":"https://doi.org/10.26740/jcer.v4n1.p8-15","url":null,"abstract":"The purpose of this study is to develop PQ4R-based LKPD in high school chemistry learning subject to valid chemical bonds based on aspects of content eligibility, PQ4R characteristics, linguistic, presentation and graphic as well as knowing user responses to LKPD. This type of research is development research with the development process referring to the development of the Plomp model. Consists of the initial investigation, design, realization / construction, test, evaluation and revision, and implementation phases. However, this research is limited only to the test, evaluation and revision phases because the purpose of this study is to develop the product and determine the user's response. The object of this research is PQ4R-based LKPD. Data collection instruments are validation sheets and user responses. The results of the data analysis obtained validity on the aspects of content eligibility, PQ4R characteristics, linguistic, presentation and graphic characteristics, respectively; 97.62%, 95.24%, 91.67%, 95.24%, and 91.67% with valid categories. Trial of user responses by teachers and students in a row; 95.83% and 91.63%, so the LKPD that has been developed is suitable for use in the learning process.","PeriodicalId":444789,"journal":{"name":"JCER (Journal of Chemistry Education Research)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124597993","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}

{"title":"THE INFLUENCE OF CYCLE LEARNING MODEL INTEGRATED BY THINK PAIR SHARE AND STUDENT TEAM ACHIEVEMENT DIVISSION ON QUALITY OF PROCESSES AND COGNITIVE LEARNING OUTCOMES","authors":"Amar Atus Sholikah, Nanang Zubaidi","doi":"10.26740/jcer.v4n1.p23-32","DOIUrl":"https://doi.org/10.26740/jcer.v4n1.p23-32","url":null,"abstract":"Hydrocarbons are one of the materials from Chemistry that studies abstract concepts and procedural knowledge such as alkanes, alkenes and alkyas. To study hydrocarbon material, students must master well the concepts related to previous concepts such as the concept of covalent bonding and equalizing reactions. If students do not understand the concepts related to hydrocarbon material, it will be difficult to master the concepts in hydrocarbon material. The learning process at school at this time sometimes also still does not increase student creativity and activity. The application of the Learning Cycle 5E learning model combined with cooperative type TPS (Think Pair Share) and cooperative type STAD can be used as an alternative to developing a more meaningful learning atmosphere in understanding concepts and giving students the opportunity to work together to solve problems. The purpose of this study was to determine: the quality of the learning process using the LC 5E - TPS and LC 5E - STAD models on the topic of hydrocarbons, as well as differences in the cognitive learning outcomes of hydrocarbon students who were taught with these two learning models. This study uses a quasi-experimental design with \"Postest Only Group Design\". The sample of this study was students of class XI IPA1 and class XI IPA2 of SMAN I Parang in the 2019/2020 school year, each consisting of 21 people. Class XI IPA1 as an experimental class taught with LC 5E - TPS model and class XI IPA2 as an experimental class taught with LC 5E - STAD model. Research data in the form of observations of the quality of the learning process, the results of observations of students 'cooperative abilities and students' post test scores. Research data were analyzed using t test. The results showed that the quality of the learning process by using the LC 5E - TPS model and the LC 5E - STAD model were included in both categories. Students' cooperative skills in both learning models are included in both categories. Cognitive learning outcomes of students in learning with the LC 5E - TPS model are higher than in learning with the LC 5E - STAD model.","PeriodicalId":444789,"journal":{"name":"JCER (Journal of Chemistry Education Research)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129591406","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}

{"title":"IMPLEMENTATION OF COOPERATIVE LEARNING MODEL TYPE NUMBERED HEAD TOGETHER (NHT) TO TRAIN SCIENCE PROCESS SKILL IN ACID BASE MATTER OF GRADE STUDENTS AT SMAN JOGOROTO JOMBANG","authors":"M. Rahmawati","doi":"10.26740/jcer.v3n2.p42-45","DOIUrl":"https://doi.org/10.26740/jcer.v3n2.p42-45","url":null,"abstract":"The purpose of this research is to describe  the implementation of syntax of the numbered heads together (NHT) type of cooperative learning model and the students science process skills when applying the Numbered Heads Together (NHT) type of cooperative learning model to the acid base material. This research uses One-Group Pretest-Posttest Design. The results of the research are shown as follows: (1) The implementation of the syntax of the NHT types of cooperative learning model obtained a percentage at three meetings in the first phase of 62.5%, 75.0%, 87.0%; the second phase of 75.0%, 87.0%, and 100%; the third phase of 75.0%, 75.0%, and 100%; the fourth phase of 62.5%, 87.0%, and 100%; the fifth phase of 75.0%, 87%, 100%; the sixth phase 50%, 100%, and 100%. (2) Science process skills of students to formulate problems get n-gain values of 0.31 in the medium category, compile hypotheses to get n-gains value off 0.49 in the medium category, collecting data get n-gain values of 1,00 with a high category, analyzing the data get a n-gain value of 0.99 with a high category, and make conclusions to get a n-gain value of 0.92 with a high category.Keywords: numbered head together (NHT), science process skills, acid base.","PeriodicalId":444789,"journal":{"name":"JCER (Journal of Chemistry Education Research)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126350066","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}