Article Per Year (5 Year)
p-Index From 2021 - 2026
3.781
P-Index
This Author published in this journals
All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT Edumatsains Lantanida Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pendidikan Kimia (JPKim) Jurnal Pensil : Pendidikan Teknik Sipil Oxygenius Journal Of Chemistry Education Jurnal Pengabdian kepada Masyarakat Nusantara Indonesian Journal of Chemical Science and Technology Hydrogen: Jurnal Kependidikan Kimia Jurnal Ilmiah Wahana Pendidikan KATALIS: Jurnal Penelitian Kimia dan Pendidikan Kimia Jurnal Nasional Holistic Science CHEDS: Journal of Chemistry, Education, and Science Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA) Jurnal Multidisiplin Teknologi dan Arsitektur Jurnal Riset Rumpun Ilmu Pendidikan (JURRIPEN) Journal of Innovative and Creativity Journal of The Indonesian Society of Integrated Chemistry LAVOISIER: Chemistry Education Journal SAKOLA: Journal of Sains Cooperative Learning and Law Jurnal Abdimas Kesehatan
Dimas Ridho
Universitas Negeri Medan
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Nursing Physics Public Health Social Sciences Other

Published : 31 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 31 Documents
Search

 1   2   3   4 
Penerapan Model Problem Based Learning Menggunakan Media Exe Learning untuk Meningkatkan Hasil Belajar dan Kerjasama Siswa Pada Materi Hidrokarbon Iis Siti Jahro; Dimas Ridho
Jurnal Pendidikan Kimia (JPKim) Vol 7, No 3 (2015): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (511.022 KB) | DOI: 10.24114/jpkim.v7i3.4261

Abstract

Abstract. This study aims to determine the increase in students learning outcomes that learned using problem based learning models using media exe learning on hydrocarbon material and correlation between the contribution of teamwork activies to improve student learning outcomes. The population all students of class X SMA Negeri 11 Medan with 8 classes. The sample taken two classes namely one class as the experimental class I who got teaching model of problem based learning using media exe learning and the  experimental class II who got teaching model of problem-based learning without media exe learning. In this study used test instrument and non-test instrumen. The test instrument that used 16 valid questions with the realibility of 0.85. The non-test instrument is used in the form of attitudes observasion sheet with indicator includes participation in learning, involvement and help peers. Based on the hypothesis test with significance level of 0.05 was tcount(4,285) > ttable(1,668). This mean Ha accepted and Ho rejected which showed an increase in student learning outcomes in the eksperimental class I higer than the eksperimental class II. Then the correlation test results indicating a positive correlation between the students teamwork activities with improving student learning outcomes that rcount(0,681) > rtable(0,320) with a coefficient of contribution 46.37%. Keywords: exe learning, problem based learning, teamwork, hydrocarbon
Analysis of Students' Initial Ability in Biopolymer Material Pratiwi, Alfira Julian; Kurniawan, Ekin Dwi Arif; Ridho, Dimas
Holistic Science Vol. 4 No. 3 (2024): Jurnal Nasional Holistic Science
Publisher : Lembaga Riset Mutiara Akbar NOMOR AHU-0003295.AH.01.07 TAHUN 2021

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/hs.v4i3.782

Abstract

This study aims to identify students' initial abilities in biopolymer materials as a basis for developing learning designs. This study uses a content analysis method, with participants being fourth-semester students in one of the Chemistry Education study programs, at a state university in West Java. The instrument used in this study was a descriptive test consisting of 13 questions. The results of the Initial ability data analysis showed that overall, it was identified that 41% of students had an Initial ability understanding with a sufficient category, 33% of students had a poor category, 23% of students had a good category and 3% of students had an initial ability understanding with an outstanding category. Based on these findings, several interventions are suitable as references in developing didactic designs, such as displaying learning videos related to the manufacture of simple bioplastics, graphs of development and annual production costs of bioplastics, images of bioplastic applications in various fields, and infographics related to the decomposition process and the benefits of sustainability of bioplastics.
Analysis of Student Satisfaction with the Digital System for Using the Chemistry Department Room at State University of Medan Ridho, Dimas; Pratiwi, Alfira Julian; Kurniawan, Ekin Dwi Arif; Ardila, Mutia; Samosir, Rafidah Almira; Nur, M Rosyadi Izzuddin
Holistic Science Vol. 4 No. 3 (2024): Jurnal Nasional Holistic Science
Publisher : Lembaga Riset Mutiara Akbar NOMOR AHU-0003295.AH.01.07 TAHUN 2021

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/hs.v4i3.786

Abstract

This study aims to determine student satisfaction with the digital system of room usage at the Chemistry Department, State University of Medan. The research method used is descriptive qualitative. The results of the study conducted on 25 students showed that in the aspect of recording room usage, there was an increase in satisfaction of 7.7%, in the aspect of room usage recapitulation, there was an increase in satisfaction to very good with a percentage of 53.8%, in the aspect of viewing room availability, there was an increase in satisfaction to very good with a percentage of 46.2%, in the aspect of viewing lecturers' schedules, there was an increase in satisfaction to very good with a percentage of 53.8%. Based on the results of the study, it shows that the response to satisfaction with the digital system shows an increase in satisfaction to improve the quality of room usage at the Chemistry Department, State University of Medan.
Pengaruh Pemahaman Konsep Asam dan Basa terhadap Kemampuan Penyelesaian Soal di Kalangan Mahasiswa Jurusan Kimia Universitas Negeri Medan Panggabean, Freddy Tua Musa; Ridho, Dimas; Hutagalung, Tien Parsaulian; Azzahra, Nazwa; Sihombing, Cindy Monalisa; Gurning, Mita Agresia
Jurnal Multidisiplin Teknologi dan Arsitektur Vol 3, No 1 (2025): Mei 2025
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/motekar.v3i1.6135

Abstract

Banyak mahasiswa mengalami kesulitan dalam menyelesaikan soal-soal perhitungan larutan penyangga. Tujuan penelitian ini adalah untuk menjelaskan Pengaruh Pemahaman Konsep Asam dan Basa terhadap Kemampuan Penyelesaian Soal di Kalangan Mahasiswa Jurusan Kimia Universitas Negeri Medan. Penelitian ini merupakan penelitian kuantitatif dengan rancangan eksperimen pretest-posttest control group design. Sampel dalam penelitian ini adalah sebagian Mahasiswa/i jurusan Kimia di Universitas Negeri Medan. Desain yang digunakan dalam penelitian ini adalah Pre-Experiment Design dengan model desain One-Group Pretest-Posttest Design. Hasil penelitian ini membuktikan ada pengaruh Pemahaman Konsep Asam dan Basa terhadap Kemampuan Penyelesaian Soal di Kalangan Mahasiswa Jurusan Kimia Universitas Negeri Medan.
PENGEMBANGAN PENUNTUN PRAKTIKUM KIMIA RAMAH LINGKUNGAN BERBASIS INKUIRI TERBIMBING; TAHAP DEVELOPMENT MODEL ADDIE Kurniawan, Ekin Dwi Arif; Pratiwi, Alfira Julian; Ridho, Dimas; Ardila, Mutia; Samosir, Rafidah Almira
CHEDS: Journal of Chemistry, Education, and Science Vol 9, No 1 (2025)
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/cheds.v9i1.11071

Abstract

Kurangnya fasilitas laboratorium yang memadai dan panduan praktikum berkualitas rendah di banyak sekolah menengah atas menghambat pembelajaran praktikum kimia yang efektif. Untuk mengatasi hal ini, penelitian ini mengembangkan dan mengevaluasi panduan praktikum kimia berbasis penyelidikan terbimbing yang terintegrasi dengan prinsip-prinsip kimia hijau, menggunakan model ADDIE (berfokus pada tahap pengembangan). Validasi dilakukan oleh enam guru kimia dan dua dosen, menilai aspek-aspek seperti konten, bahasa, penyajian, dan desain. Metode kuantitatif deskriptif dalam kerangka RD digunakan untuk analisis. Panduan tersebut menerima skor rata-rata keseluruhan sebesar 4,78 dari 5, yang menunjukkan bahwa panduan tersebut "sangat layak." Secara khusus, skor untuk konten, bahasa, penyajian, dan desain masing-masing adalah 4,78, 4,82, 4,78, dan 4,75. Hasil-hasil ini menunjukkan bahwa panduan tersebut sesuai untuk meningkatkan pembelajaran kimia praktis dan menumbuhkan kesadaran lingkungan melalui kimia hijau di sekolah menengah atas.
LEMBAR KERJA MAHASISWA (LKM) BERBASIS EDUCATION SUSTAINABLE DEVELOPMENT (ESD) PADA MATERI BIOPOLIMER Pratiwi, Alfira Julian; Ardila, Mutia; Samosir, Rafidah Almira; Arif Kurniawan, Ekin Dwi; Ridho, Dimas; Ningsi, Rira Octa
CHEDS: Journal of Chemistry, Education, and Science Vol 9, No 1 (2025)
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/cheds.v9i1.11060

Abstract

Penelitian ini bertujuan untuk merancang lembar kerja mahasiswa (LKM) berbasis Pendidikan Pembangunan Berkelanjutan (ESD) pada bahan biopolimer. Lembar kerja ini diharapkan dapat digunakan dalam penelitian lebih lanjut dan membantu mahasiswa memahami pentingnya pembangunan berkelanjutan melalui topik biopolimer sebagai solusi permasalahan lingkungan. Metode yang digunakan adalah pendekatan kualitatif dengan teknik pengumpulan data melalui Focus Group Discussion (FGD). FGD dilakukan pada tahap pra-penelitian untuk mendapatkan masukan awal dan menyiapkan desain LKM yang sesuai. Hasil penelitian menunjukkan bahwa lembar kerja yang dikembangkan dinilai layak setelah mengalami revisi berdasarkan masukan dari para ahli di bidang material, desain, dan pedagogi. Oleh karena itu, produk akhir dinyatakan valid dan direkomendasikan untuk diuji dalam pembelajaran biopolimer di tingkat universitas.
Analisis Tingkat Pemahaman Mahasiswa Universitas Negeri Medan PSPK 23 B Terhadap Soal Teori Atom Freddy Tua Musa Panggabean; Dimas Ridho; Christy Chirona Veronika; Happy Glory Maritoma; Siti Zahara
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v4i1.4551

Abstract

This study aims to analyze the level of understanding of PSPK 23 B students at Medan State University on atomic theory questions. With a quantitative descriptive approach, data were collected through multiple-choice tests filled out by 30 students. The results showed an average understanding of 75.33%, which is quite good. However, there was significant variation where some students mastered basic concepts (eg Dalton and Thomson's atomic models), while others had difficulty with abstract topics (eg Bohr's model and quantum mechanics). This finding is in line with previous studies on misconceptions in atomic structure. This study emphasizes the importance of innovative learning strategies, such as visual media and conceptual approaches, to improve student understanding. Periodic evaluation is needed to detect learning gaps and adjust teaching methods. The results of this study can be a basis for developing more effective chemistry education practices.
Perspektif Mahasiswa Jurusan Matematika Kelas Kimia Umum terhadap Pemanfaatan Bunga Telang dan Cuka sebagai Tinta Alami Ramah Lingkungan Dimas Ridho; Tita Juwitaningsih; Nadhira Eka Putri Prayudi; Nabila Mutiara Syifa; Putri Syahbilah; Fitrah Ifandi Hasibuan
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v4i1.5014

Abstract

This study aims to analyze the perspectives of mathematics students in general chemistry classes. on the use of butterfly pea flowers (Clitoria ternatea) and vinegar as basic ingredients for making environmentally friendly natural ink. This innovation is expected to be an alternative to the use of chemical inks and to encourage environmental awareness among students. This study uses a descriptive analysis method with data collection through questionnaires distributed to students. The results of the analysis show that most students gave a positive response to the use of butterfly pea flowers and vinegar as natural ink, especially in terms of loss, material safety, and potential application in the campus environment. These findings indicate an opportunity to develop environmentally friendly products based on local wisdom in the world of education.
THE IMPACT OF DISCOVERY LEARNING ON HIGHER-ORDER THINKING SKILLS IN CHEMISTRY: A META-ANALYSIS Ardila, Mutia; Samosir, Rafidah Almira; Pratiwi, Alfira Julian; Kurniawan, Ekin Dwi Arif; Ridho, Dimas; Sa’diyah, Halimatus
Lantanida Journal Vol 13 No 1 (2025): January-June 2025
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v13i1.29914

Abstract

This research examines the effect of the discovery learning model on higher-order thinking skills in chemistry subjects at the high school level in Indonesia with a total sample of 230 students. The research method is a meta-analysis study with a range of research data from 2015-2024 based on Google Scholar indexed by Sinta. Heterogeneity test analysis using JASP version 0.8.5 shows a τ² value of 0.236 and a τ value of 0.485, with an I² value approaching 100% (CI: 74.015%–98.358%). The results indicate a high level of heterogeneity (98.358%). Therefore, a random effects model is used in the analysis. The meta-analysis results suggest that discovery learning significantly affects higher-order thinking skills (z = 4.730; p < 0.001; 95% CI). Funnel plot and Egger's tests did not show publication bias, supported by a fail-safe N value 488. The results of this study reinforce empirical evidence that discovery learning is a practical approach to chemistry learning.
Analisis Pemahaman Siswa Terhadap Struktur Atom dan Sistem Periodik Unsur Dalam Konteks Minat Belajar: Pendekatan Kuantitatif Panggabean, Freddy Tua Musa; Ridho, Dimas; Dewita, Cinta Febby; Wahyuni, Indri; Sari, Marta; Izwani, Putri Khairi
SAKOLA: Journal of Sains Cooperative Learning and Law Vol 2, No 1 (2025): April 2025
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/sakola.v2i1.5910

Abstract

Penelitian ini bertujuan untuk menganalisis pemahaman siswa terhadap materi struktur atom dan sistem periodik unsur serta hubungannya dengan minat belajar siswa. Pendekatan yang digunakan adalah kuantitatif deskriptif dengan populasi siswa kelas X di salah satu SMA negeri. Sampel penelitian terdiri dari 100 siswa yang dipilih secara purposive. Instrumen yang digunakan meliputi tes objektif untuk mengukur pemahaman konsep dan angket minat belajar siswa. Data yang diperoleh dianalisis menggunakan statistik deskriptif berupa persentase, rata-rata, dan standar deviasi, serta uji korelasi Pearson untuk melihat hubungan antara minat belajar dengan tingkat pemahaman siswa. Hasil penelitian menunjukkan bahwa sebagian besar siswa memiliki tingkat pemahaman sedang terhadap struktur atom dan sistem periodik unsur. Selain itu, ditemukan adanya hubungan positif yang signifikan antara minat belajar dengan pemahaman siswa. Semakin tinggi minat belajar siswa, semakin baik pula pemahamannya terhadap materi. Temuan ini menunjukkan pentingnya pengembangan strategi pembelajaran yang tidak hanya fokus pada penguasaan konsep, tetapi juga mampu meningkatkan minat belajar siswa agar tercapai hasil belajar yang optimal dalam pembelajaran kimia.
Co-Authors Afriani, Dinda Syuhada Agnia Kamila Rambe Ahmad Fauzi Syahputra Yani Ahmad Nasir Pulungan Aldo Geo Frengky Saragih Alisya, Syalwa Nur Amanda Revalona Sitepu Anggun Maharani Ani Sutiani Annisa Saktiono Ardila, Mutia Artorito Sitorus Azriany, Dianra Azura, Nazwa Asti Azzahra, Nazwa Br. Hutahuruk, Novitasari Brilyant Alvindo Sihombing Budiman Anwar Cecilia Sijabat Christy Chirona Veronika Daeli, Dinastini Damanik, Kezia May Kristy Br Damanik, Marini Delima Sianturi Devita Syahputri Dewita, Cinta Febby Dian Wardana Dinda Rizky Dita Indah Lorencia Silitonga Dwi Sapri Ramadhan Eddiyanto Elsa Elperida Pandiangan Eviyona Laurenta Barus Eviyona Laurenta Br Barus Fahmi, Jam’an Fithrah Amalia Sirait Fitrah Ifandi Hasibuan Freddy Tua Musa Panggabean Gea, Olivia Febriana Gilbert Situmorang Gurning, Mita Agresia Happy Glory Maritoma Haqqi Nasution Harahap, Lenni Khotimah Hotma Br. Butar Butar Hutagalung, Tien Parsaulian Ida Duma Riris Iis Siti Jahro Indra Koto Indri Wahyuni Irving Alexander Izwani, Putri Khairi Jona Mikhael Hutagaol Juwitaningsih, Tita Khalishah Husna Simanjuntak Kristian Turnip Kurniawan, Ekin Dwi Arif Lenni Khotimah Harahap Liana Atika Lutfiah Syahrawani Siregar Maria Yovinta Silitonga Mei Sufi Anisa Sibarani Mena Fadilla Lukman Monalisa Situmorang Moondra Zubir Muhammad Fisal Muliaman, Agus Mutia Ardila Nabila Mutiara Syifa Nadhira Eka Putri Prayudi Nadira, Fathin Naftali Marbun Ningsi, Rira Octa Nur, M Rosyadi Izzuddin Panjaitan, Divi Ebigael Putri Panjaitan, Khayla Akmal Pratama, Muhammad Rizky Pratiwi, Alfira Julian Putri Syahbilah Rahmani, Mei Raja Khairani Ramadhani, Nazwa Ramlan Silaban Ratna Sari Dewi Ratna Sari Dewi Renata Siburian Reva Lenita Girsang Riansyah Putra Rina Syadilla Ririn Denita Sinaga Safrinanda Harahap Samosir, Rafidah Almira SARI, MARTA Sarnika Simbolon Sa’diyah, Halimatus Siagian, Syahrani Sianipar, Mirna Wulan Sari Sihite, Raytama Sukmawati Sihombing, Cindy Monalisa Simanullang, Selafionita Siti Aisyah Lubis Siti Zahara Soha Khairunnisa Siregar Sri Adelila Sari Susilawati Amdayani Syafiatun Siregar Syifani Azzura Tafonao, Firman Satria Theresya Yolanda Kembaren Tita Juwitaningsih Tita Juwitaningsih Tita Juwitaningsih Ucia Mahya Dewi Vanessa Putri Rizky Simanullang Wawan Bunawan Wawan Bunawan Wiranda Hasibuan Wulan Dwi Safitri Zhilli Izzadati Khairuni