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All Journal VALENSI Jurnal Ilmu Lingkungan EDUSAINS Journal of Education and Learning (EduLearn) EduChemia: Jurnal Kimia dan Pendidikan Jurnal Pendidikan Kimia Universitas Riau Jurnal Tadris Kimiya Jurnal Manajemen Pendidikan AL ISHLAH Jurnal Pendidikan ALCHEMY Jurnal Penelitian Kimia Jurnal Manajemen Pendidikan Penelitian Kualitatif Dinamisia: Jurnal Pengabdian Kepada Masyarakat Al-Khwarizmi: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Jurnal Riset Pendidikan Kimia (JRPK) JPPIPA (Jurnal Penelitian Pendidikan IPA) Edukimia SPIN: Jurnal Kimia & Pendidikan Kimia Unri Conference Series: Community Engagement Hydrogen: Jurnal Kependidikan Kimia Journal of Educational Sciences
Maria Erna
Chemical Education Postgraduate Program FKIP Universitas Riau, Pekanbaru 28293, Indonesia
Religion Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Social Sciences Other

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Process Oriented Guided Inquiry Learning dalam Mereduksi Miskonsepsi Siswa SMA pada Materi Kesetimbangan Kelarutan Maria - Erna; Sri Haryati; Anggie Oktaviani S
Al-Khwarizmi : Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol 9, No 1 (2021): Al-Khwarizmi: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam had Accredi
Publisher : Prodi Pendidikan Matematika FTIK IAIN Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1536.648 KB) | DOI: 10.24256/jpmipa.v9i1.792

Abstract

Abstract:The application of the Process Oriented Guided Inquiry Learning (POGIL) strategy was carried out to reduce students' misconceptions on solubility equilibrium material. The design of this experimental study was a randomized control group pretest-posttest. The evaluation instrument used is a three-tier multiple-choice test using the Certainty of Response Index. The population of this study was 11-grade students one of the public schools in Pekanbaru city. The study sample was determined randomly after the normality test and homogeneity test was carried out. The experimental class was treated with the application of the POGIL learning strategy while the control class was without the implementation of the POGIL strategy. Data analysis for hypothesis testing is done using the right-party t-test. The results showed that tcount <ttable (-0.59 <2.02) can be interpreted that the application of the POGIL strategy can reduce students' misconceptions in the solubility equilibrium material with a reduction in misconceptions by 47.05%.Abstrak:Penerapan strategi Process Oriented Guided Inquiry Learning (POGIL) dilakukan untuk mereduksi miskonsepsi siswa pada materi kesetimbangan kelarutan.  Rancangan penelitian eksperimen ini adalah randomized control group pretest-posttest. Instrumen yang digunakan adalah tes pilihan ganda tiga tingkat dengan menggunakan Certainty of Response Index. Populasi penelitian ini adalah siswa kelas XI salah satu sekolah negeri di kota Pekanbaru.  Sampel penelitian ditentukan secara acak setelah dilakukan uji normalitas dan uji homogenitas. Kelas eksperimen diberi perlakuan dengan penerapan strategi pembelajaran POGIL sedangkan kelas kontrol tanpa penerapan strategi POGIL. Analisa data untuk pengujian hipotesis dilakukan menggunakan uji-t pihak kanan. Hasil penelitian memperlihatkan thitung < ttabel ( -0,59 < 2,02) dapat diartikan bahwa penerapan strategi POGIL dapat mereduksi miskonsepsi siswa pada materi kesetimbangan kelarutan dengan reduksi miskonsepsi sebesar 47,05 %.
The Effectiveness of Problem-Based Flipped Classroom Model in Improving Chemistry Learning Outcomes of Buffer Solution Nurul Lestari Musva; Maria Erna; Abdullah Abdullah
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 1 (2023): February 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i1.6213

Abstract

The concept of buffer solutions is ubiquitous in everyday life, encompassing macroscopic, symbolic, and microscopic representations. Effective learning of these concepts requires students to understand the subject matter, analyze it, and apply their knowledge to real-life situations. This study aimed to assess the impact of problem-based learning in a flipped classroom model on the learning outcomes of 11th-grade science students studying buffer solutions at SMAN 12 Pekanbaru. The study employed a quasi-experimental design with a pretest-posttest control group. The sample consisted of two groups of 11th-grade science students: Group 3 served as the experimental group and Group 4 as the control group. Data was collected through a test and analyzed using t-test in SPSS 22. The results revealed that the problem-based learning approach in the flipped classroom model effectively improved the learning outcomes of 11th-grade science students studying buffer solutions at SMAN 12 Pekanbaru. The experimental group showed an average improvement of 7.394 over the control group, with a significant (α) t-value of 0.013.
Enhancing Science Literacy through Development of Acid-Base E-module using Book Creator Etik Krisnawati; Jimmy Copriadi; Maria Erna
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 1 (2023): February 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i1.5874

Abstract

The aim of this study was to produce a science literacy-based e-module prototype using a book creator focused on acid-base material and to investigate user responses to the product. The Plomp model was utilized for the design of the research. The e-module was validated by two material experts and one media expert. The trial of user responses was conducted on teachers and students. The results showed that the e-module met the criteria for validity with a high average score of 97.14% for material substance and 97.27% for learning design. The media aspect received an average score of 96% for visual communication and 98.33% for software utilization. The responses of both teachers and students were positive, with average scores of 93.70% and 86.07%, respectively.
Thermodynamic Properties and Characterizations of Chitosan Nano-Particles Corrosion Inhibition on The Surface of Mild Steelin Peat Water Media Maria Erna; Emriadi Emriadi; Admin Alif; Syukri Arief
ALCHEMY Jurnal Penelitian Kimia Vol 12, No 1 (2016): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.12.1.936.27-35

Abstract

The thermodynamic properties and characterizations of corrosion inhibition of chitosan nano-particles on the surface of mild steel in peat water media had been studied using weight loss method at temperatures of 30 - 50 oC. Steel surfaces were characterized by FT-IR spectra and SEM-EDS morphology photos. The research found that the value of DGo approaching -40 kJmol-1. The negative value of Gibbs free energy shows that the adsorption of inhibitor molecules on the surface of mild steel was achemisorption and it occurred spontaneously. Meanwhile, the values of DHo is also negative confirming that the adsoprtion of inhibitor molecules is an exothermic process. The value of DSo obtained is positive, it indicates hat the inhibitor molecules were adsorbed spontaneously on the mild steel surface. The analysis on mild steel surfaces hows that the nano-particle chitosan was adsorbed on the steel surface to form the complex compounds.
BLENDED LEARNING BERBANTUAN GOOGLE CLASSROOM UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS PESERTA DIDIK PADA MATERI KESETIMBANGAN Ion DAN pH LARUTAN PENYANGGA Teja Pratama Putra; Maria Erna; Lenny Anwar
Jurnal Manajemen Pendidikan Penelitian Kualitatif Vol 7, No 1 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jmppk.7.1.p.21-29

Abstract

The purpose of this study was to determine the improvement of students' critical thinking skills on ion equilibrium and pH buffer solution material through the application of Blended Learning assisted by Google Classroom. The research was conducted in one of the high schools in Pekanbaru City, class XI MIPA in the even semester of the 2022/2023 school year. This research is an experimental research with a research design in the form of Randomized Control Group Pretest-Posttest Design. From the existing population, there are samples in the experimental class (36 students) and the control class (33 students). The results of the research statistical test (One Tailed t-Test) show that the hypothesis is accepted with tcount 2.07> ttable 1.67 (dk = 67, α = 0.05). Indications of an increase in students' critical thinking skills due to the implementation of a combination of conventional class learning and virtual classes that build students to think more fluently, not fixated, active, creative, interactive and not bored during the learning process.
Development of Electronic Student Activity Sheet (E-LKM) Utilization of Used Cooking Oil for Chemistry Education Students Ahmad Khairu Ramadhan; Maria Erna; Roza Linda
AL-ISHLAH: Jurnal Pendidikan Vol 15, No 3 (2023): AL-ISHLAH: JURNAL PENDIDIKAN
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v15i3.2419

Abstract

This study aims to develop an electronic student activity sheet (E-LKM) utilization of used cooking oil for chemistry education students in entrepreneurship courses. This research is development research with the Plomp development model. The data obtained came from 6 validators (3 material experts and 3 media experts), 3 lecturers of entrepreneurship courses, and 30 students from three universities, namely Riau University, Sultan Syarif Kasim Riau State Islamic University, and Riau Islamic University. Data collection techniques are used in the form of interviews, documentation, and questionnaires. The data analysis technique is by calculating the percentage score of the validation assessment and user response. The results showed that the developed E-LKM met the very valid criteria with a percentage of 92.13% by material experts and 90.70% by media experts. The results of the responses of lecturers and students show that the developed E-LKM meets the very good criteria with a percentage of 82.93% by lecturers and meets the attractive criteria of 84.51% by students.
ETHNOSCIENCE STUDY OF SHRIMP PASTE AT THE MERANTI ISLANDS AS A REPRESENTATION OF CHEMISTRY LEARNING Siti Nazhifah; Maria Erna; Putri Adita Wulandari; Nabila Afifah Azuga
JPPIPA (Jurnal Penelitian Pendidikan IPA) Vol. 10 No. 1 (2025): Juni 2025
Publisher : Universitas Negeri Surabaya in collaboration with Perkumpulan Pendidik IPA Indonesia (PPII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppipa.v10n1.p57-68

Abstract

This study explores the integration of ethnoscience into chemistry education by using the traditional shrimp paste production process in Meranti Islands Regency, Riau, Indonesia as a contextual learning resource. The research method used a qualitative descriptive case study approach, with data collection involving field observations, in-depth interviews with five shrimp paste producers (ethnographic data), and a review of scientific literature (scientific data). The findings indicate that the shrimp paste production process still heavily relies on inherited local knowledge and involves several stages: sorting and washing, crushing, molding, fermentation, drying, and heating over a fire. Each of these stages contains chemical aspects that can be analyzed through various approaches: a macroscopic approach (examining physical and chemical changes such as color, aroma, and texture), a submicroscopic approach (focusing on molecular and enzymatic interactions), and a symbolic approach (exploring chemical reactions such as hydrolysis, fermentation, and Maillard reactions). Furthermore, the study reveals that the community’s knowledge of the shrimp paste production process is supported by scientific principles, as documented in the literature. The results suggest that shrimp paste production not only contributes to the local economy and cultural preservation but also holds significant potential for enhancing students’ scientific literacy through an integrated chemical representation approach. The integration of these three levels of chemical representation is expected to provide students with a holistic and applied understanding of chemical concepts.
Co-Authors Abdullah Abdullah Abdullah Abdullah Admin Alif Agustina Eka Saputri Ahmad Khairu Ramadhan Anggie Oktaviani S Arisman Adnan Bella Listriani Putri Durriah Durriah Eka Surya Dharma Emriadi - Etik Krisnawati Hasnah Hasnah Helmy Hidayat Herdini , Herdini Hirda Karnia Ivan Purba Jimmi Copriady Jimmy Copriadi Jimmy Copriady Johni Azmi Lenny Anwar Madju Siagian Mazidah Mazidah Melly Shintia Melcin Nabila Afifah Azuga Nurhayati, Nurhayati Nursya Alma Indah Nurul Aulia Nisa Nurul Lestari Musva Ody Azis Saputra Okma Rahmatya Okma Rahmatya Pitri Rahma Dewi Putri Adita Wulandari R. Usman Rery Ramadani Ramadani Rasmiwetti Ressi Yunelda Restu Aminullah Rini, Ari Sulistyo Roza Linda Siti Nazhifah Solly Aryza Sri Haryati Sri Wilda Albeta Suharmin Suharmin Susilawati Susilawati Susilawati Susilawati Susilawati Susilawati Syukri Arief Teja Pratama Putra Vira Hardiani Vivin Wulandari Wiji Astuti Zaza Fikrati Auliyani