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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 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 Edunesia : jurnal Ilmiah Pendidikan Eduproxima : Jurnal Ilmiah Pendidikan IPA Unri Conference Series: Community Engagement Jurnal Bio-Geo Material Dan Energi 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 Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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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.
Pemberdayaan Masyarakat Desa Kualu Nenas Riau Melalui Diversifikasi Pemanfaatan Kulit Nanas Menjadi Larutan Eco-Enzyme Erna, Maria; Nazhifah, Siti; Erlinda, Sri
Unri Conference Series: Community Engagement Vol 7 (2025): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.7.279-284

Abstract

This community service activity aims to empower the community in Kualu Nenas Village through the diversification of pineapple waste utilization as raw material to produce Eco-Enzyme (EE) solution products that are economically valuable and environmentally friendly. Interviews with the community revealed that pineapple peel waste had never been processed into products. In addition, piles of pineapple waste were found to be dumped directly on the ground, polluting the environment. This program was attended by 30 participants in the socialization stage and 15 participants in the practical training stage. The methods used consisted of socialization on the importance of pineapple peel waste management and training on Eco-Enzyme production with direct assistance. The satisfaction survey results showed that 90% of participants felt that the material was presented clearly and was easy to understand, while 77% felt motivated to produce Eco-Enzyme independently. In addition, 100% of participants claimed to have gained new knowledge about waste management. From an economic perspective, calculations show that each household can generate profits from producing Eco-Enzyme solution, which can be used as floor cleaner, fertilizer, and soap mixture. Thus, this program not only successfully improved participants' knowledge and skills but also has the potential to increase local community income.
IMPLEMENTASI MEDIA PEMBELAJARAN INTERAKTIF TERINTEGRASI ETNOKIMIA MELAYU RIAU PADA PROSES PEMBELAJARAN SEBAGAI STRATEGI UNTUK MENINGKATKAN KEMAMPUAN LITERASI KIMIA PESERTA DIDIK Hasibuan, Lusiana Jamal; Erna, Maria; Susilawati, Susilawati
EDUPROXIMA : Jurnal Ilmiah Pendidikan IPA Vol 8, No 1 (2026)
Publisher : Universitas Bhinneka PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/.v8i1.8729

Abstract

Literasi kimia merupakan salah satu kompetensi penting untuk memahami fenomena ilmiah dan membuat keputusan berbasis sains dalam kehidupan sehari-hari. Faktanya, tingkat literasi peserta didik di Indonesia masih rendah berdasarkan hasil asesmen nasional dan internasional (PISA). Penelitian ini bertujuan untuk mengintegrasikan etnokimia Melayu Riau pada media pembelajaran digital khususnya pada materi larutan penyangga sebagai salah satu strategi untuk meningkatkan kemampuan literasi kimia peserta didik yang berada pada fase F. Media ini memuat kegiatan pembelajaran yang mengaitkan konsep larutan penyangga dengan kebudayaan lokal khususnya budaya Melayu Riau yang sesuai dengan lingkungan tempat tinggal peserta didik, sehingga pembelajaran menjadi lebih kontekstual dan bermakna. Penelitian ini menggunakan desain posttest only control group design yang melibatkan dua kelas yaitu kelas eksperimen dan kelas kontrol di SMAN 2 Pangkalan Kerinci. Hasil penelitian menunjukkan bahwa rata-rata skor posttest literasi kimia peserta didik pada kelas eksperimen lebih tinggi dibandingkan dengan kelas kontrol, yaitu 81,4 dan 55,67. Hasil uji independent sample t test menunjukkan nilai sig 0,05, artinya terdapat perbedaan yang signifikan antara literasi kimia peserta didik di kelas eksperimen dan kelas kontrol. Temuan ini menunjukkan bahwa belajar dengan menggunakan media pembelajaran digital yang terintegrasi etnokimia Melayu Riau mampu meningkatkan kemampuan literasi kimia peserta didik.
PENGEMBANGAN E-LKPD BERBASIS PROBLEM BASED LEARNING DENGAN PENDEKATAN SOCIO SCIENTIFIC ISSUES UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS Kurniawan, M. Andre Bintang; Erna, Maria; Anwar, Lenny
EDUPROXIMA : Jurnal Ilmiah Pendidikan IPA Vol 8, No 1 (2026)
Publisher : Universitas Bhinneka PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/.v8i1.8711

Abstract

Penelitian ini bertujuan mengembangkan E-LKPD berbasis Problem Based Learning (PBL) dengan pendekatan Socio Scientific Issues (SSI) untuk meningkatkan kemampuan berpikir kritis peserta didik pada materi asam basa. Pengembangan dilakukan menggunakan model ADDIE yang terdiri dari tahap analisis, desain, pengembangan, implementasi, dan evaluasi. Instrumen penelitian meliputi lembar validasi, angket respon, tes berpikir kritis, dan observasi. Hasil validasi menunjukkan bahwa E-LKPD tergolong sangat valid, dengan skor rata-rata 92,4% (materi) dan 97,4% (media). Respon guru dan peserta didik menunjukkan bahwa E-LKPD dinilai sangat praktis dan menarik. Hasil uji efektivitas menggunakan desain pretest-posttest control group menunjukkan peningkatan signifikan dalam kemampuan berpikir kritis, dengan nilai N-Gain pada kelas eksperimen sebesar 0,85 (kategori tinggi) dan pada kelas kontrol sebesar 0,59 (kategori sedang). Uji t-test menunjukkan perbedaan signifikan antara kedua kelompok (p 0,05). Dengan demikian, E-LKPD berbasis PBL-SSI efektif digunakan untuk meningkatkan kemampuan berpikir kritis peserta didik dan layak dijadikan sebagai alternatif media pembelajaran kimia yang inovatif dan kontekstual.
Sensitivity Analysis in the Design of the Establishment of Mosaccha Tempe Agroindustry in Bandar Lampung Wicaksana, Bayu; Melatiningsih, Atri; Rizal, Samsul; Hidayati, Sri; Kustyawati, Maria Erna; Endaryanto, Teguh
Jurnal Bio-Geo Material Dan Energi Vol. 6 No. 2 (2026): Journal of Bio-Geo Material and Energy (BiGME), April 2026
Publisher : PUI BiGME Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/j-bigme.v6i2.54347

Abstract

Mosaccha tempeh is a fermented soybean product produced using Rhizopus oligosporus as a starter culture with the addition of Saccharomyces cerevisiae, and it has strong development potential. This study conducted financial and sensitivity analyses to evaluate the feasibility of establishing a Mosaccha tempeh agroindustry and its responsiveness to changes in key variables affecting business viability. The research aimed to assess the impact of various scenarios on business feasibility. The methods employed included surveys, observations, and interviews using a purposive sampling technique. Premium tempeh producers in Bandar Lampung were selected as prototypes, with UMKM Tempeh Cap Mobil serving as a reference to align the data with current conditions. Data were processed using Microsoft Excel and analyzed under several scenarios: increases in raw material prices (10%, 20%, and 30%), decreases in selling prices (10%, 20%, and 30%), and combinations of both factors at the same percentage levels. Under normal assumptions, the establishment of a Mosaccha tempeh agroindustry in Bandar Lampung is considered feasible, with an NPV of Rp 2,450,599,432.50, an IRR of 76%, a B/C ratio of 1.49, and a payback period of 1.67 years. Sensitivity analysis results indicate that increases in raw material costs of up to 30%, decreases in selling prices of up to 20%, and a combined 10% increase in raw material costs with a 10% decrease in selling prices do not significantly affect feasibility. However, simultaneous increases in raw material prices and decreases in selling prices are the most sensitive factors influencing the financial viability of the Mosaccha tempeh agroindustry in Bandar Lampung.
Co-Authors ', Abdullah ', Erviyenni ', Lenni ', Nur Aini ', Rasmiwetti ', Rini ', Ristiana Abdullah Abdullah Admin Alif 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 Bayu Wicaksana, Bayu 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 Hasibuan, Lusiana Jamal Hasnah Hasnah Helmy Hidayat, Helmy Herdiana, Novita Herdini , Herdini Hestivik, Chelsi Ida Ayu Putu Sri Widnyani Ika, Risqa Putri Indraningtyas, Lathifa Irnov, Masithah Isnawati Lujeng Lestari Jimmi Copriady Johni Azmi Kuncoro, Bagus Wahyu Kurniawan, M. Andre Bintang Lenny Anwar Lisa Lestari Maharani, Ketut Oka marcella, Selly Marlisa, Lani Melatiningsih, Atri Mohd Jain Noordin Murhadi Murhadi Mursidin . Nadira, Syarifa Nazhifah, Siti Ningtias, Arpi Ayu Novizal, Roni Nuzuriah, Nuzuriah Oskar M. Manik Otik Nawansih Pratiwi, Dini Eka 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 Samsu Udayana Nurdin Samsul Rizal Saputri, Agustina Eka Sri Erlinda 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