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All Journal Journal of Natural Science and Integration Konfigurasi : Jurnal Pendidikan Kimia dan Terapan Acta Biochimica Indonesiana Journal of Chemistry Education and Integration Community Service Journal Of Economic Education
yenti, elvi
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Social Sciences Other

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PENGGUNAAN MODEL THINKING ALOUD PAIR PROBLEM SOLVING (TAPPS) DALAM MENGANALISIS KEMAMPUAN PEMECAHAN MASALAH SISWA PADA MATERI LAJU REAKSI Lestari, Darliana; Yenti, Elvi
Journal of Chemistry Education and Integration Vol 3, No 2 (2024): Journal of Chemistry Education and Integration
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jcei.v3i2.32392

Abstract

AbstractProblem-solving ability was one of abilities that should be owned by students, and this ability was on low category in Indonesia. It needed attention to be developed because of the successful indicators of chemistry learning process. This research aimed at knowing how student problem-solving ability achievement on 4 problem-solving indicators after being taught by using Thinking Aloud Pair Problem Solving (TAPPS) model on Reaction Rate lesson. The subjects of this research were the eleventh-grade students of MIPA 4 at State Senior High School 1 Kampar, and Purposive sampling technique was used in this research. It was a quantitative descriptive research. The design used in this research was the one-shot case study. The data analysis result showed that problem-solving ability of students taught by using TAPPS model on 4 problem-solving indicators had various percentages. The achievement of problem-solving indicator on the indicator of planning the plans was 82.64% (very good), the indicator of implementing the plans was 78.52% (good), the indicator of crosschecking was 69.95% (good), and the indicator of understanding the problems was 63.32% (good). So, it was obtained that the mean of problem-solving ability of all the eleventh-grade students of MIPA 4 at State Senior High School 1 Kampar was 73.60%, and it was on good category.Keywords: Thinking Aloud Pair Problem Solving (TAPPS), Problem-Solving, Reaction Rate           
The Development of Teaching Materials for Chemical Bonding Course Integrated with Islamic Values: Need Analysis Yenti, Elvi; Nazir, Nazir; Zein, Mas'ud
Journal of Natural Science and Integration Vol 8, No 1 (2025): Journal of Natural Science and Integration
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jnsi.v8i1.36263

Abstract

This study aims to identify the need for the development of teaching materials for the Chemical Bonding course in the form of textbooks that integrate Islamic values. The needs analysis was conducted through an open-ended questionnaire distributed via Google Forms, which was accessible online to respondents. The subjects of this research included lecturers teaching Chemical Bonding, Basic Chemistry, and Organic Chemistry, as well as Chemistry program students who had previously studied chemical bonding concepts. A qualitative descriptive data analysis method was employed. Responses from the questionnaire were categorized and analyzed to calculate the percentage of respondents supporting the need for the development of integrated teaching materials. The results revealed unanimous agreement among lecturers (100%) on the necessity of developing chemical bonding teaching materials that incorporate Islamic values. Additionally, 95% of students expressed strong support for the development of such materials, while 5% indicated that the development of self-learning resources would also be beneficial. Based on these findings, it is evident that there is a substantial demand for a Chemical Bonding textbook integrated with Islamic values to enhance the learning experience and bridge the gap between scientific knowledge and Islamic principles.Keywords: analysis, teaching materials, chemical bonds, integration of Islamic values
Sustainable solid soap production using recycled cooking oil with ecoenzyme and lemongrass extract Octarya, Zona; Yenti, Elvi; Utami, Lisa; Yusbarina
Acta Biochimica Indonesiana Vol. 8 No. 1 (2025): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.191

Abstract

Background: Improper disposal of used cooking oil poses significant environmental challenges, including groundwater contamination and harm to aquatic ecosystems. Recycling used cooking oil into solid soap offers a sustainable solution to reduce waste while creating a valuable, eco-friendly product. Objective: This study aims to produce solid soap from used cooking oil with the addition of ecoenzyme and lemongrass extract and evaluate its potential as an environmentally friendly and antimicrobial soap. Method: Used cooking oil was refined using bagasse as an adsorbent to remove impurities. Ecoenzyme was produced by fermenting organic kitchen waste, sugar, and water for three months, while lemongrass extract was prepared by blending and filtering lemongrass stalks. The soap was formulated by saponifying refined used cooking oil with NaOH, ecoenzyme, and lemongrass extract. The physical properties of the soap were assessed. Results: The resulting soap was solid, creamy in color, and emitted a refreshing lemongrass aroma. Antimicrobial properties are potential due to the organic acids and enzymes in the ecoenzyme, combined with the bioactive compounds in lemongrass extract. Conclusion: Solid soap made from used cooking oil with ecoenzyme and lemongrass extract offers a sustainable and effective solution for waste recycling while providing natural antimicrobial and cleaning benefits.
KESEHATAN DAN EKONOMI BERBASIS RUMAH TANGGA: PELATIHAN TEH KOMBUCHA SEBAGAI IMUNOMODULATOR DAN USAHA MANDIRI Octarya, Zona; Yenti, Elvi; Lazulva, Lazulva
COMMUNITY SERVICE JOURNAL OF ECONOMICS EDUCATION Vol 4, No 1 (2025): Community Service Journal Of Economic Education
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/csjee.v4i1.37069

Abstract

Health and economic self-reliance are two essential aspects in improving the quality of life, particularly for housewives in RT 05 RW 05, Lembah Sari Subdistrict, Rumbai Timur. This community service activity aimed to provide training in the production of kombucha probiotic drinks, which function as immunomodulators and have the potential to serve as an additional source of income. The method used was Participatory Action Research (PAR), which actively involved the community throughout the entire process—from problem identification to reflection on outcomes. The training was conducted in three main stages: planning, implementation, and evaluation. The results of the activity showed an increase in the housewives' understanding of the benefits of kombucha and their ability to produce the drink independently.
PENGEMBANGAN MEDIA INTERAKTIF BERBASIS PENDEKATAN SCIENCE, TECHNOLOGY, RELIGION, ENGINEERING, ART AND MATHEMATICS PADA MATERI IKATAN KIMIA Dewi, Sari Tirta; Yenti, Elvi; Refelita, Fitri; Kurniawati, Yenni
Journal of Chemistry Education and Integration Vol 4, No 1 (2025): Journal of Chemistry Education and Integration
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jcei.v4i1.35890

Abstract

This research was motivated by the lack of learning media using information and communication technology and the creation of student-centred, interactive, and multimedia networking learning patterns in the chemistry learning process. This research aimed at designing and finding out validity and practicality levels of Science, Technology, Religion, Engineering, Art, and Mathematics approach based interactive media with Nearpod developed on Chemical Bond lesson.  Research and Development (R&D) method was used in this research with Design Development Research (DDR) model, and the steps were analysis, design, development, and evaluation.  This research was conducted at State Senior High School 1 Benai.  The instruments of collecting data were interview sheet, validity test questionnaire, practicality test questionnaire, and student response questionnaire.  The validity test results showed that the percentage results were 94.64% by material experts and 90% by media experts with very valid criteria.  The percentage result of teacher practicality test was 91.66% with very practical criteria, and the percentage result of student response test was 94.88% with very interesting criteria, it can therefore be concluded that interactive media using Nearpod based on the science, technology, religion, engineering, art, and mathematics approach in chemical bonding material is worth trying out as additional teaching material in chemistry lessons.
DESAIN DAN UJI COBA MEDIA BERBASIS WEBLOG PADA MATERI PERKEMBANGAN MODEL ATOM TERINTEGRASI NILAI-NILAI ISLAM Yenti, Elvi; Lestari, Marsya Diah
Konfigurasi : Jurnal Pendidikan Kimia dan Terapan Vol 9, No 2 (2025)
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/konfigurasi.v9i2.37810

Abstract

This research was instigated with the education aiming as a communication process form students who believe, and have noble character and have good knowledge. In order to unite scientific knowledge and Islamic values, so innovation that can make these two sciences into one unified whole is needed.  This research aimed at producing Weblog based learning media design and finding out the appropriateness level and student response to the media.  It was Research and Development with Design Development Research (DDR) model.  The result of this research was Weblog learning media on Islamic Values integrated the Development of the Atomic Model lesson.  a) the validity level consisted of the percentages 92.5% by media expert validators with very valid criterion, 100% by material expert validators with very valid criterion, and 84.37% by integration expert validators with very valid criterion; b) Chemistry subject teacher response through practicality test showed that the percentage was 95% with very practical criterion; and c) the response of the tenth-grade students of class  to the media showed that the percentage was 85% with very good criterion.
PENGARUH MEDIA PEMBELAJARAN INTERAKTIF ANDROID TERHADAP MINAT SISWA PADA MATERI REAKSI REDUKSI OKSIDASI Tarsha, Cindy Fellya; Refelita, Fitri; Yenti, Elvi
Journal of Chemistry Education and Integration Vol 3, No 1 (2024): Journal Of Chemistry Education and Integration
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jcei.v3i1.28795

Abstract

AbstractThis research was instigated by Senior High School students who were not interested in Chemistry subject, so the efforts to increase student interest were needed, one of which was by using Android based interactive learning media. This research aimed at finding out the effect of using Android based interactive learning medium toward student learning interest on Oxidation Reduction Reactions lesson at Sport State Senior High School Riau Province. The use of Android based interactive learning medium was expected able to improve chemistry learning more interesting and effective. Quantitative approach was used in this research with quasi-experiment method and pretest-posttest design. Total sampling technique was used in this research, the tenth-grade students of Natural Science 2 were as the experiment group, and the students of Natural Science 1 were as the control group. The data of student learning interest were obtained by using questionnaire instrument and analyzed by using t-test and determination coefficient to find out the effect on student learning interest in the significance score. Based on the results obtained, the score of tobserved was 6.061, sig 2-tailed was 0.000, and ttable was 2.018. If the significance score 0.000 was lower than 0.05 and the score of tobserved was higher than ttable, it could be concluded that Null hypothesis (H0) was rejected and Ha was accepted. It meant that there was a significant effect of using Android based interactive learning medium toward student learning interest with the effect coefficient 16.4%. Keywords : Android Based Interactive Learning Media, Learning Interest, Oxidation Reduction Reactions
PENGEMBANGAN BAHAN AJAR KOMIK TERINTEGRASI ISLAM PADA MATERI HAKIKAT ILMU KIMIA Suprianingsih, Nelis; Yenti, Elvi; Kurniawati, Yenni
Journal of Chemistry Education and Integration Vol 1, No 1 (2022): Journal of Chemistry Education and Integration
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jcei.v1i1.15901

Abstract

Abstract The design of Islamic integrated teaching materials in chemistry subjects is an important effort to increase and grow the awareness of students from intellectual, emotional and spiritual aspects. This study aims to design Islamic integrated comics teaching materials on the nature of chemistry, and determine the level of validity and practicality as well as student responses to the designed comics teaching materials. The type of research used is Research and Development (R&D) with the Borg and Gall development model which includes 5 stages carried out namely information gathering, planning, development, testing, and final revision. The subjects of this research are material experts, Islamic religious experts, media experts, chemistry teachers and students of class X Science 1, and the object of research is an Islamic integrated comic on the material nature of chemistry. Comics are said to be feasible if they are valid and practical, with the percentage of validity obtained from material experts of 92.08% (very valid), the percentage of validity of Islamic religious experts is 76% (valid), the percentage of validity from media experts is 89.52% (very valid), the percentage of practicality obtained from chemistry teachers is 86.81% (very practical), and 80% of students give a very good response to the overall comic design. These results identify that Islamic integrated comics on the material nature of chemistry are valid and practical, further research is needed to test product productivity. Keywords : Teaching Materials, Comics, The Nature of Chemistry, Integrated Islam.
Co-Authors Dewi, Sari Tirta Lazulva Lazulva, Lazulva Lestari, Darliana Lestari, Marsya Diah Lisa Utami NAZIR NAZIR, NAZIR refelita, fitri Suprianingsih, Nelis Tarsha, Cindy Fellya Yenni Kurniawati Yusbarina Zein, Mas'ud Zona Octarya