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All Journal CHEMISTRY PROGRESS Jurnal Pendidikan Kimia Undiksha Sainstek Jurnal Natur Indonesia Jurnal Pilar Sains Jurnal Inovasi Pendidikan Kimia Tadris: Jurnal keguruan dan Ilmu Tarbiyah Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Jurnal Teknologi Pertanian Jurnal Agroindustri Biology, Medicine, & Natural Product Chemistry Proceeding 7th International Seminar on Regional Education Indonesian Journal of Chemical Science Jurnal Manajemen Pendidikan Jurnal Penelitian Pendidikan IPA (JPPIPA) PEMBELAJAR: Jurnal Ilmu Pendidikan, Keguruan, dan Pembelajaran Journal of Natural Science and Integration Jurnal Teknologi & Industri Hasil Pertanian Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Batoboh : Jurnal Pengabdian Pada Masyarakat Chemistry Education Practice Community Development Journal: Jurnal Pengabdian Masyarakat Edunesia : jurnal Ilmiah Pendidikan Eduproxima : Jurnal Ilmiah Pendidikan IPA Journal of Educational Sciences UNESA Journal of Chemical Education Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Jurnal Agroindustri Berkelanjutan
Maria Erna Kustyawati
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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HUBUNGAN PENGGUNAAN INSTRUMEN PENILAIAN KEMAMPUAN PEMECAHAN MASALAH DENGAN EFIKASI DIRI PESERTA DIDIK PADA MATERI LAJU REAKSI Nurbaiti; Erna, Maria; Futra, Dedi
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.6584

Abstract

This study aims to find out how the relationship between students' self -efficacy and self -efficacy in the reaction rate material. This type of research is an experimental study with pretest-posttest design. The sampling technique in this study was a random sampling technique, namely by choosing 3 high school (SMA) in Bengkalis Regency, namely SMA Negeri 2 Mandau, 8 Mandau State High School, and IT Al-Kautsar State High School. The correlation test was carried out to find out whether between two variables there was a relationship, and if there was a relationship, how the direction of the relationship and how much the relationship was. Based on the results of the correlation test that there is a positive correlation between the ability to solve problems and self -efficacy in students in high school, medium and low.
Effect of Packaging on Protein Content, pH, and Sensory of Probiotic Tempeh Juice During Cold Storage Sahara, Nur Aini; Aisah, Attika Nur; Kustyawati, Maria Erna; Astuti, Sussi; Satyajaya, Wisnu
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 6 (2025): December 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i6.2229-2238

Abstract

Tempeh juice with probiotics is considered as functional probiotic foods with health benefits. This study aimed to evaluate the effect of packaging type (glass bottle and aluminum foil), and cold storage duration on chemical, microbial and sensory properties of probiotic tempeh juice. The research used a two-factorial Randomized Complete Block Design with three replications. ANOVA was used to analyze the data and it was followed by DMRT test at 5% significance level. The results showed that storage duration had no significant effect on viscosity and other chemical analysis, but was significant on sensory attributes of color, aroma, taste, and overall acceptability. Protein decreased on the 8th day probably due to protein hydrolysis by microbial activity, but increased on the 12th day of storage due to the accumulation of microorganism cell walls during storage. However, sensory changes included a paler color, a stronger fermentation aroma, an acidic alcoholic taste, and overall acceptance was acceptable. It was concluded that glass bottle packaging was more effective in maintaining the stability of protein content, pH, and sensory of probiotic tempeh juice beverage compared to the aluminum foil standing pouch with a spout, with the estimated shelf life was 8 days in cold storage.
Penerapan Model Pembelajaran Problem Based Learning (PBL) untuk Meningkatkan Kemampuan Pemecahan Masalah Peserta Didik Pada Materi Asam Basa Pratiwi, Dini Eka; Erna, Maria; Anwar, Lenny
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.9392

Abstract

This study aims to determine the improvement of students’ problem-solving abilities in acid-base material through the application of the Problem Based Learning (PBL) learning model in class XI of SMAN 7 Pekanbaru. This study uses a quantitative method with a one-group pretest-posttest pre-experimental design. The population in this study were All students of class XI of SMAN 7 Pekanbaru. The research sample was 36 students selected through a simple random sampling technique. The instrument used was a problem-solving ability test validated by 3 validators. Data analysis through normality tests, paired sample t-tests and N-Gain tests. The results showed that there was a significant increase in students’ problem-solving abilities after the application of the PBL model, indicated by the calculated t value > t table (25.983 > 2.03011) and an average N-Gain value of 0.71 with a high category. These results indicate that the PBL model is effective in improving students’ abilities in understanding, planning, and implementing problem solving in acid-base material.
Pengembangan Media Pembelajaran Interaktif Berbasis Website Pada Materi Struktur Atom Dan Sistem Periodik Unsur Kelas X SMA/MA Sederajat Riska, Riska; Erna, Maria; Linda, Roza
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.9455

Abstract

This study aims to develop and evaluate the feasibility of website-based interactive learning media on the topic of atomic structure and the periodic table of elements for grade X students of senior high school (SMA/MA) or equivalent. The development was carried out using the ADDIE model which includes five stages: analysis, design, development, implementation, and evaluation. Data collection included validation of media and materials by experts, teacher and student response questionnaires, and limited trials. The validation results showed that the learning media met the “valid” criteria in all aspects assessed, including content feasibility (92.5%), language (93.75%), presentation (93.75%), graphics (97.91%), and concept structure (95.31%), with an overall average of 94.64% for material experts. Media experts assessed the visual design and software utilization aspects at 92.5% and 100%, respectively, with an average of 96.25%. In this study, the research sample was 10 grade X students of SMAN 7 Pekanbaru and 10 grade X students of SMAN 9 Pekanbaru as well as 2 chemistry teachers in each school. In the implementation stage, a user response trial will be conducted by the research sample. The user response trial by teachers and students also showed very good results, with an overall average score of 91.80% and 91.76%, which is categorized as "very good". These findings indicate that the developed website-based interactive learning media is effective, practical, and appropriate to support independent and meaningful learning, especially in mastering abstract chemical concepts such as atomic structure and the periodic table.
Implementation of The Discovery Learning Model to Improve The Activity and Learning Outcomes Nadira, Syarifa; Erna, Maria; Herdini, Herdini
Edunesia : Jurnal Ilmiah Pendidikan Vol. 7 No. 1 (2026)
Publisher : Research, Training and Philanthropy Institution Natural Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51276/edu.v7i1.1415

Abstract

This study used classroom action Research to improve student learning activities and outcomes on buffer solutions for Grade XI 1 at SMAN 6 Pekanbaru through discovery learning. The model was applied through stages of stimulation, problem statement, data collection, data processing, verification, and generalization. CAR cycles of planning, action, observation, and reflection addressed learning problems arising from the abstract and microscopic nature of buffer concepts. Participants were 36 students of class XI 1. Results show student learning activities increased from 57.61% (Cycle I, adequate) to 71.10% (Cycle II, good), meeting the success criterion. Student learning outcomes similarly improved, with classical mastery rising from 63.88% in Cycle I to 94.44% in Cycle II, and mean scores increasing accordingly. Findings indicate that systematically implemented discovery learning, supported by teacher scaffolding and iterative refinement, effectively enhances both engagement and achievement in buffer solution topics. The study recommends broader application and further Research on scaffolded discovery approaches across classes.
Co-Authors ', Abdullah ', Erviyenni ', Lenni ', Nur Aini ', Rasmiwetti ', Rini ', Ristiana Abdullah Abdullah Adelia, Dini Admin Alif Aisah, Attika Nur Aisyah Aisyah Andi Dahliaty Anty Ummiyati Aprillia Dyah Suhestry Ardi, Dinda Melissa AS, suharyono Asha Aunaya La Assqiya Assqiya, Asha Aunaya La Azwendra, Yosi Baehaqi Bagus Wahyu Kuncoro Betty Holiwarni Cahyani, Atika Dwi Dedi Futra Dewi Agustina Iryani, Dewi Agustina DEWI SARTIKA DEWI SARTIKA Dewi, Pitri Rahma Dyah Koesoemawardani Dyah Koesoemawardani Dyah Putri Larassati Elva Yasmi Elva Yasmi Amran, Elva Yasmi Emriadi - Erdi Suroso Erviyenni Erviyenni Erviyenni, Erviyenni Ety Testiaty Fauzi, Fajrina Firanti, Feyges Frilla Fitriah, Nafiatul Fitriani, Wahyu Fitriatul Hasanah, Fitriatul Hadi Prayitno Hadi Prayitno, Hadi Hardiani, Vira Hasanah, Asqiatul Hasnah Hasnah Helmy Hidayat, Helmy Herdiana, Novita Herdini , Herdini Hestivik, Chelsi Ida Ayu Putu Sri Widnyani Ika, Risqa Putri Indraningtyas, Lathifa Irnov, Masithah Jimmi Copriady Johni Azmi Kuncoro, Bagus Wahyu Lenny Anwar Lisa Lestari Maharani, Ketut Oka marcella, Selly Marlisa, Lani Melatiningsih, Atri Mohd Jain Noordin Murhadi Murhadi Mursidin . Nadira, Syarifa Ningtias, Arpi Ayu Noer, Asmadi M. Novizal, Roni Nurbaiti Nuzuriah, Nuzuriah Oskar M. Manik Otik Nawansih Paramastuti, Lujeng Pratiwi, Dini Eka Putri Adita Wulandari Putri, Bella Listriani R. Usman Rery Rahmah, Amelia Kurnia Rahmatya, Okma Ramadani, Ramadani Rasmiwetti Rasmiwetti, Rasmiwetti RIBUT SUGIHARTO Rini Astuti RINI RINI Riska Riska Roza Linda Sahara, Nur Aini Samsu Udayana Nurdin Samsul Rizal Saputri, Agustina Eka Sri Haryati Sri Hayati, Sri Sri Hidayati Sri Hidayati Sri Setyani, Sri Sri Waluyo suharyono AS Suharyono Suharyono Suhestry, Aprillia Dyah Sukrisno, Sukrisno Susilawati Susilawati, Susilawati Sussi Astuti Syahrina Irya, Syahrina Syamsiana, Annisa Syarifah Syarifah, Syarifah Syukri Arief Tanto Pratondo Utomo Teguh Endaryanto Thaliarinanta, Angela Saraz Ummiyati, Anty Wildan Nur, Aditya Winanti, Diki Danar Tri Wisnu Satyajaya Yeni Yulia Sari, Yeni Yulia Yum Eryanti Yunelda, Ressi Yusup, Maulid Wahid