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All Journal JPMS (Jurnal Pendidikan Matematika dan Sains) Jurnal Pendidikan Matematika dan IPA Sains Olahraga : Jurnal Ilmiah Ilmu Keolahragaan TABULARASA Jurnal Tematik Jurnal Ilmu Pendidikan Indonesia PROSIDING SEMINAR KIMIA Chemistry in Education Lantanida Journal Jurnal Obsesi: Jurnal Pendidikan Anak Usia Dini Jurnal Penelitian Kesehatan Suara Forikes Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pendidikan Kimia (JPKim) EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA Indonesian Journal of Medicine AL-HAYAT: Journal of Biology and Applied Biology Efektor Ideas: Jurnal Pendidikan, Sosial dan Budaya Jurnal Paedagogy Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Budapest International Research and Critics in Linguistics and Education Journal (Birle Journal) Eduproxima : Jurnal Ilmiah Pendidikan IPA Indonesian Journal of Chemical Science and Technology Khazanah Intelektual Didaktika: Jurnal Kependidikan Jurnal ComunitA Servizio Seminar Nasional Peningkatan Mutu Pendidikan KATALIS: Jurnal Penelitian Kimia dan Pendidikan Kimia Jurnal Warta Desa (JWD) Jurnal Penelitian Sains dan Pendidikan (JPSP) Educenter: Jurnal Ilmiah Pendidikan Jurnal Pijar MIPA Jurnal Ilmu Pendidikan Indonesia JURNAL PENELITIAN BIDANG PENDIDIKAN Duconomics Sci-meet (Education & Economics Science Meet) Mahir : Jurnal Ilmu Pendidikan dan Pembelajaran JIPI (Jurnal IPA dan Pembelajaran IPA) Proceeding of International Conference on Multidisciplinary Research EDUCENTER JURNAL PENDIDIKAN J-CEKI Prosiding Seminar Nasional Keguruan dan Pendidikan (SNKP) Proceeding of The International Conference on Mathematical Sciences, Natural Sciences, and Computing
Ramlan Silaban
Chemistry Education, Faculty Of Mathemathics And Natural Science, Universitas Negeri Medan, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Analysis of the Utilization of Hydroponic Media in Welsh Onion Cultivation (Allium fistulosum L.) Sirait, Gloria; Alexander, Irving Josafat; Silaban, Ramlan
Al-Hayat: Journal of Biology and Applied Biology Vol. 6 No. 2 (2023)
Publisher : Fakultas Sains dan Teknologi, UIN Walisongo Semarang

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Abstract

The food crisis is a condition when acute food hazards and net malnutrition increase sharply. One reason is due to a slowdown in food production. In 1627, a new farming method was known, called hydroponics, namely the method of growing with the help of water. After further investigation, it was found that the cultivation method with water will eventually produce plants that are as good as plants grown using soil media. Therefore, this research will explore the benefits of using hydroponic media in leek cultivation. In this study, there were two containers, the first container was not subject to the application of pesticides, while the second container was watered with onion peel vegetable pesticides twice a week. The results of the leek planting experiment in the hydroponic system and media showed that the maximum height achieved by the leek plants tested was as high as 22.8 cm, and only 3 out of 17 total plants died.
DEVELOPMENT OF LOCAL WISDOM OF TUAK REACTION RATE TEACHING MATERIALS INTEGRATED WITH PROBLEM-BASED LEARNING Br Singarimbun, Veronica Liasta; Silaban, Ramlan
KATALIS: Jurnal Penelitian Kimia dan Pendidikan Kimia Vol 8 No 1 (2025): Jurnal Katalis Vol. 8 No. 1 Tahun 2025
Publisher : Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/katalis.v8i1.11384

Abstract

This study aims to develop a teaching material in the form of a textbook based on the local wisdom of tuak, integrated with the Problem-Based Learning (PBL) model, for the topic of reaction rates in Grade XI MIA-2 at SMA Methodist-An Pancur Batu. The development model used in this study is the 4D model. The 4D model (Define, Design, Develop, Disseminate) is a systematic approach commonly used in instructional development to produce high-quality learning products. Based on the analysis, it was found that SMA Methodist-An Pancur Batu has implemented the Independent Curriculum (Kurikulum Merdeka) at Phase F, but has not yet incorporated local wisdom into the learning process. Moreover, the textbooks previously used did not apply the PBL approach. In this study, a reaction rate textbook based on the local wisdom of tuak was developed in accordance with the Independent Curriculum, including Learning Outcomes (CP), Learning Objective Flow (ATP), and strengthening the Pancasila Student Profile. Validation results showed that the material expert's assessment obtained an average score of 3.83, while the media expert's score was 3.68—both categorized as valid and requiring no revision. Teacher responses to the developed textbook reached 95% (very good), while student responses were 93.3% (very good). Thus, this textbook is considered feasible and effective for use as a learning resource that incorporates local wisdom and is integrated with the Problem-Based Learning model in chemistry education at school
AKTIVITAS ANTIBAKTERI KOMBINASI EKSTRAK KAYU SECANG (Caesalpinia sappan L) dan EKSTRAK JAHE (Zingiber officinale) TERHADAP BAKTERI Eschericia coli dan Staphylococcus aureus Juwitaningsih, Tita; Nazira, Nirwana; Silaban, Ramlan; Susanti, Nora; Selly, Rini
EDUPROXIMA : Jurnal Ilmiah Pendidikan IPA Vol 7, No 3 (2025)
Publisher : Universitas Bhinneka PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/.v7i3.6740

Abstract

Penelitian ini bertujuan untuk mengetahui aktivitas antibakeri kombinasi ekstrak secang dan jahe. Uji aktivitas antibakteri dilakukan terhadap dua bakteri yaitu bakteri Escherichia coli dan Staphylococcus aureus, meliputi uji difusi cakram kertas, penentuan minimum inhibitory concentration (MIC) dan minimum bactericidal concentration (MBC) dengan metode mikrodilusi. Pengujian ini menggunakan perbandingan ekstrak 1:1, 1:2 serta 2:1. Kombinasi ekstrak secang dan jahe memiliki aktivitas antibakteri terhadap kedua bakteri uji terlihat dengan munculnya zona beningnya. Aktivitas antibakteri yang kuat terhadap bakteri E. coli ditunjukkan oleh kombinasi ekstrak secang dan jahe pada perbandingan 1:1 dengan nilai MIC 39,6 μg/ml sedangkan pada bakteri S. aureus ditunjukkan oleh kombinasi ekstrak secang dan jahe dengan perbandingan 2:1 dengan nilai MIC 78,1 μg/ml.
IMPLEMENTATION OF ANDROID-BASED INTERACTIVE MULTIMEDIA ON ATOM STRUCTURE MATERIALS ON LEARNING OUTCOMES AND STUDENT MOTIVATION Yudha, Sandy; Nurfajriani, Nurfajriani; Silaban, Ramlan
Jurnal Pendidikan Matematika dan IPA Vol 14, No 2 (2023): July 2023
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jpmipa.v14i2.60166

Abstract

The purpose of this study was to determine the effect of implementing Android-based interactive multimedia on learning outcomes and student motivation at SMA Negeri 1 Binjai, Langkat Regency. The method used in this research is the descriptive quantitative research method. The data collection instruments used in this study were questionnaires (questionnaires) and tests. The data analysis technique used in this research is a quantitative descriptive analysis using the one-sample t-test formula and correlation test. The learning outcomes of students who are taught using Android-based interactive multimedia obtained by students are higher than the KKM value set at school, which is 75, with an average value of student learning outcomes of 86.91 and a sig. = 0.000 0.05 from the results of the one-sample t-test conducted. The results of the student's motivation towards android-based interactive multimedia obtained an average percentage of 87.57 in the highly motivated category. Motivation and learning outcomes of students have a positive relationship with a very strong strength with the obtained Pearson Correlation value of 0.941 and a coefficient of determination of 88.5%.
Analisis Kebutuhan terhadap Pengembangan E-Modul Laju Reaksi Berbasis Problem Based Learning dengan Konteks Kearifan Lokal Suku Batak Toba “Dekke Naniura” Inki Yun Lamtiur; Ramlan Silaban; Ajat Sudrajat
PROSIDING SEMINAR NASIONAL KEGURUAN DAN PENDIDIKAN (SNKP) Vol. 3 (2025): Prosiding Seminar Nasional Keguruan dan Pendidikan (SNKP) 2025
Publisher : LPPM UNIVERSITAS MUHAMMADIYAH MUARA BUNGO

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Abstract

Latar Belakang: Penelitian ini bertujuan untuk mengidentifikasi dan menganalisis kebutuhan pengembangan media pembelajaran berupa e-modul pada materi laju reaksi yang terintegrasi dengan kearifan lokal suku Batak Toba melalui makanan tradisional dekke naniura dengan menggunakan model problem based learning. Analisis kebutuhan dilakukan berdasarkan tahapan pertama dari model ADDIE yaitu (Analyst) atau analisis. Subjek dan Metode: Penelitian dilakukan dengan pendekatan deskriptif kualitatif melalui studi literatur dan studi lapangan di SMA Negeri 18 Medan. Data dikumpulkan melalui observasi kelas, wawancara dengan satu guru kimia, dan angket kebutuhan siswa yang diberikan kepada 30 siswa dalam bentuk Google Form. Hasil: Hasil penelitian menunjukkan bahwa sekolah belum memiliki program khusus dalam mengintegrasikan kearifan lokal ke dalam pembelajaran kimia. Integrasi budaya lokal hanya dilakukan dalam proyek Profil Pelajar Pancasila kelas X dan belum mendorong pengembangan kemampuan berpikir siswa. Pembelajaran kimia di sekolah masih didominasi oleh metode ceramah, dengan pemanfaatan media video yang terbatas serta pelaksanaan kegiatan praktikum yang belum optimal. Selain itu, e-modul belum digunakan karena pendekatan pembelajaran belum menyesuaikan dengan minat, motivasi, dan kemampuan siswa. Kondisi ini menjadikan proses pembelajaran monoton, kurang bermakna, dan berdampak pada rendahnya kemampuan berpikir serta pemahaman siswa terhadap penerapan konsep kimia dalam kehidupan sehari-hari. Oleh karena itu, sebanyak 73,5% siswa membutuhkan bahan ajar berupa e-modul, dan 94,1% siswa setuju untuk melakukan pengembangan e-modul materi laju reaksi kearifan lokal suku Batak Toba sebagai salah satu alternatif penunjang proses pembelajaran kimia. Kesimpulan: Siswa membutuhkan bahan ajar tambahan dalam pembelajaran, dan menyetujui pengembangan e-modul materi laju reaksi berbasis kearifan lokal suku Batak Toba sebagai alternatif bahan ajar yang dinilai lebih relevan, kontekstual, dan mampu meningkatkan motivasi serta pemahaman siswa terhadap materi kimia
Analysis of the Needs for Developing Innovative Chemistry Teaching Modules Based on Integrated Problem Based Learning with Local wisdom Tini Sulastri; Nurfajriani Nurfajriani; Ramlan Silaban
Proceeding of the International Conference on Mathematical Sciences, Natural Sciences, and Computing Vol. 1 No. 2 (2024): December : Proceeding of the International Conference on Mathematical Sciences,
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/icmsnsc.v1i2.20

Abstract

This study aims to analyze the quality of Grade XI SMA/MA chemistry textbooks, aligning with the standards set by the National Standards Agency for Education (BSNP). This research employs the Research and Development (R&D) method, specifically the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation), with both qualitative and quantitative approaches. The results indicate that the textbooks scored: 3.37 for content validity, 3.87 for language, 3.85 for presentation, and 3.69 for graphics, categorizing them as highly valid.
Co-Authors A'in Donasari Abai Manupak Tambunan Afni, Khairul Ajat Sudraja Ajat Sudrajat Ajat Sudrajat Akmalia, Nur Albinus Silalahi Andalia Asmi Anna Juniar Aristo Hardinata Asmi, Andalia Ayi Darmana Bajoka Nainggolan Bajoka Nainggolan Boni Mariska Ratnawati Br Singarimbun, Veronica Liasta Bronika Septiani, Bronika Chintia Dewi Sukri Cintia Fitriani Rumapea Cintia Fitriani Rumapea David Frans Pardamean Sihombing Day Dosmayhot Simaremare Delanining Saragih Deni Rahman Marpaung Devi Anriani Siregar Dewi Susanti Dewi Syafriani Dian I Sinurat Eddiyanto Eddiyanto Effi Nurma Husnitha Eka Kartika Silalahi Elisabet Singarimbun Elsa Ginting Elvana, Ayu Emmi Silvia Herlina Erdiana Gultom Erni Juliani Siregar ESRIDA HUTAHAEAN Ester Manalu Eva Fadillah Evi Irianti Fauziah Fauziah Fauziyah Harahap Fauziyah Harahap FELIA MUTIARA HUTAPEA Freddy T.M. Panggabean Freddy T.M. Panggabean Freddy Tua Musa Panggabean Gloria Sirait Grace Octavia Hutasoit Hasibuan, Desy Rahmayanti Hendro Pranoto Herla Rusmarilin Herry Purwanto Panjaitan Hersakso Sinurat Hery Widijanto Hilda Pratiwi Ida Duma Riris Ida Duma Riris Iis Siti Jahro Iis Siti Jahro Iis Siti Jahro Iis Siti Jahro Iis Siti Jahro Indra Lasmana Tarigan Indrayani, Lisa Inki Yun Lamtiur Irving Josafat Alexander Julia Mardhiya Justinos Ray Nainggolan Juwitaningsih, Tita Khairani Fitri Kiki Ledya Laila Tussifah Lubis Lusyana Rahman Lusyana Rahman Mahmud Mahmud Mahmud Mahmud Mandike Ginting Manihar Situmorang Manihar Situmorang manihar Situmorang, manihar Marham Sitorus Marham Sitorus Marianna E Pasaribu Marianna Pasaribu Marpaung, Fytry Vebiola Martina Asiati Napitupulu Maryam Jamilah Melhyada Veronika Panggabean Melhyada Veronika Panggabean Mhd Burhan Anggara Mira Andriyani Molani Paulina Hasibuan Monalisa Martha Siahaan Moondra Zubir Muhammad Iqbal Mutiara Agustina Nst Nainggolan4, Bajoka Napitupulu, Rahel Ronauli Kurniaasih Nazira, Nirwana Nina Mardiana (F01108057) Nunung Sri Mulyani Nurfajriani Nurfajriani Nur Nurfajriani Nurfajriani Nurfajriani Nurfajriani Nurfajriani Nurfajriani Nurfajriani, Nurfajriani Nurhayani Nurhayani Osi Annauli Br Girsang Pakpahan, Debora Pangondian Hotliber Purba Patricia Rohana Septiana Simarmata Pelita Ananda Sianturi Pelita Ananda Sianturi Purba, Friska Juliana Rabiah Afifah Daulay Rafles Sinaga Rahmadani Renata Hutagalung Retno Dwi Suyanti Retno Dwi Suyatni Rezki Maya Ananda Rini Selly, Rini Riza Manullang Riza Sahala Manullang Rizky Emiliya, Rizky Roselva Theresia Manalu Rosidah, Rosidah Salim Efendi Salim Efendi, Salim Salomo Hutahaen Samosir, Rafidah Almira Sandy Yudha Sandy Yudha Santi Nababan Santri Angelia Damanik Sari, Richa Purmaya SARONOM SILABAN Saronom Silaban Saronom Silaban Sary Marcella Sitompul Sary MF Sitompul Sary MF Sitompul Shinta Rap Sitinjak Simanjuntak, Hendra Simanjutak, Mariati Purnama Simatupang, Lisnawaty Simson Tarigan Sinaga, Rika Nailuvar Sio Tuti Gultom Sitinjak, Shinta Rap Susilo Sudarman Syafruddin Ilyas Tini Sulastri Tini Sulastri Tita Linyan Pardede Trisna W Simanullang Trisna W Simanullang Vera Roni Setiawan Veronika Meiyuina Simatupang Vivi Hutapea Vivi Hutapea Wesly Hutabarat Wesly Hutabarat Wesly Hutabarat, Wesly Wulan Dwi Safitri Yudha, Sandy Yulia Fitri Zainuddin Muchtar Zulfahri, Zulfahri