Article Per Year (5 Year)
p-Index From 2021 - 2026
3.161
P-Index
This Author published in this journals
All Journal Cakrawala Pendidikan Jurnal Pengajaran MIPA Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Jurnal Sains dan Teknologi Kimia Jurnal Riset dan Praktik Pendidikan Kimia Jurnal Inovasi Pendidikan IPA Lantanida Journal JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Journal of Chemistry Diklabio: Jurnal Pendidikan dan Pembelajaran Biologi Jambura Journal of Educational Chemistry JURNAL PENDIDIKAN MIPA Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Didaktika: Jurnal Kependidikan JIPI (Jurnal IPA dan Pembelajaran IPA) Jurnal Pengabdian Isola Jurnal Riset dan Praktik Pendidikan Kimia Jurnal Pendidikan IPA Indonesia IJIS Edu : Indonesian Journal of Integrated Science Education
Ijang Rohman
Universitas Pendidikan Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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

Found 31 Documents
Search

 1   2   3   4 
The 4STMD Method for a Contextual Colloid Module on Tofu Waste Coagulation Abdurachman, Bagas; Anwar, Sjaeful; Rohman, Ijang
Jurnal Inovasi Pembelajaran Kimia Vol. 7 No. 2 (2025): OCTOBER 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v7i2.67866

Abstract

The abstract nature of chemistry often leads to low student comprehension, a problem exacerbated by a lack of teaching materials that connect concepts to real-world situations. This research aimed to develop a valid, practical, and effective contextual teaching module on the colloid system using Four Steps Teaching Material Development (4STMD) method. The research following the stages of Design, Development, and Evaluation (DDE). The module's unique context is the application of colloid chemistry principles to the treatment of tofu liquid wastewater using Moringa oleifera seeds as a natural coagulant. The development process followed the four stages of 4STMD: Selection, Structuring, Characterization, and Didactic Reduction. The module's quality was evaluated by three expert chemistry teachers and tested for understandability with 63 high school students. The results of the expert validation indicated that the module is Very Feasible, with high scores in content (95.2%), language (85.7%), presentation (93.7%), and graphical feasibility (85.3%). Furthermore, the student understandability test yielded an average score of 93.33%, categorizing the module as "High" and suitable for independent learning. It is concluded that the 4STMD method successfully produced a viable and effective contextual module that bridges the gap between abstract chemical concepts and their practical, sustainable applications.
Designing Educational Games with Mastery Learning Strategy to Improve Computational Thinking Skills: A Bibliometric Analysis Emilia Candrawati; Ijang Rohman; Ratnaningsih Eko Sardjono; Binar Kurnia Prahani; Satwika Trianti Ngandoh
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 7, No 1 (2025): January 2025
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v7i1.5102

Abstract

Students need computational thinking skills to help them face global challenges with rapid technological development. For this reason, teachers must be able to implement CT in learning by paying attention to students' interest in learning, one of which is using educational games. Designing CT-integrated educational games requires appropriate strategies such as mastery learning. This study aims to analyse the development of educational game design using mastery learning strategies so that it can provide an overview to educators in developing the media to improve students' CT skills. This research uses a qualitative descriptive method. The data obtained was analysed bibliometrically using the VOS Viewer application. The VOS Viewer analysis shows that there is a connection between game design, computational thinking, and mastery learning that began in 2016. The results also show that there are 4 things that become the basis for designing educational games, namely cognitive, motivational, affective, and sociocultural perspectives
Bridging Vocational Needs with Chemistry Content: Designing an Outline of Chemistry Teaching Materials for Textile Dyeing Context Muhammad Syahrur Royhan; Sjaeful Anwar; Ijang Rohman
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11065

Abstract

The merging of adaptive chemistry subjects (C.1) into the IPAS project subject in the Independent Curriculum causes the chemistry content to be non-specific and not adapted to all vocational elements. This has the potential to hinder students' understanding of relevant chemistry concepts in their vocational context. This study aims to design an outline of chemistry teaching materials that are relevant to the needs of dyeing subjects in Textile Finishing Engineering VHS. The method used is Qualitative Content Analysis (QCA) with four stages to obtain and evaluate chemistry content related to the dyeing context. The results show that there are 19 chemistry contents that have been systematically arranged and validated based on the sequence, details, and their relationship to the dyeing context. For example, the content of electrolyte solution, acid base, ion equilibrium in solution, and reaction rate plays an important role in regulating the affinity of dyes to fibers and the speed of the dyeing process. This outline is useful for teachers or education practitioners as a clear guide to integrating chemistry content and vocational contexts into learning or teaching materials. For students, it can help them understand chemistry concepts that are more contextual and applicable to their vocational fields.
Mengintegrasikan Konten Kimia Kontekstual tentang Reaksi Redoks dalam Pemeliharaan Sasis untuk Program Keahlian Teknik Kendaraan Ringan Santi Deva; Sjaeful Anwar; Ijang Rohman
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.11296

Abstract

This study aims to analyze the relevance and integration of contextual chemistry content, particularly focusing on redox reactions in the context of corrosion in automotive chassis maintenance, into the vocational education curriculum of Light Vehicle Engineering (Teknik Kendaraan Ringan Otomotif/TKRO) programs. Utilizing the Qualitative Content Analysis (QCA) method, this research examines curriculum documents, IPAS (Ilmu Pengetahuan Alam dan Sosial) modules, and interviews with both science and vocational teachers to identify gaps between chemistry teaching and vocational practices. The results reveal that essential chemical concepts such as oxidation-reduction reactions, electrochemistry, and corrosion science are currently absent or underrepresented in the general science curriculum. These omissions hinder students’ understanding of crucial maintenance procedures related to metal degradation, material selection, and protective treatments. The study proposes a contextualized chemistry material outline to bridge this gap, enabling vocational students to apply scientific principles effectively in real-world automotive settings. Findings from this study advocate for the incorporation of redox and electrochemical content in vocational science education to enhance both conceptual understanding and technical competency.
Pengembangan Modul Sistem Koloid Konteks "Pengolahan Limbah Batik" menggunakan Metode Four Steps Teaching Material Development Firli Nurpatihah S; Sjaeful Anwar; Ijang Rohman
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.11310

Abstract

This study aims to develop a contextual colloidal system module with a batik wastewater treatment context that is suitable for senior high school students. The development of this module is motivated by the widespread use of teaching materials that do not fully align with curriculum demands, focusing solely on scientific content without applying a contextual approach. The research method employed is Design Development Evaluation (DDE), while the development of the teaching material follows the Four Steps Teaching Material Development (4STMD) model. In the design stage, analysis and planning of the type of teaching material to be developed were conducted, resulting in an initial draft of the module. The development stage, based on 4STMD, consists of four steps: selection, structuring, characterization, and didactic reduction, leading to the creation of a draft teaching material. The evaluation stage involved feasibility testing by chemistry teachers and experts, and comprehensibility testing with students. The evaluation results indicate that the developed contextual teaching material, based on the batik wastewater treatment context, is aligned with the curriculum, conceptually accurate, and feasible for use as independent learning material. The feasibility test yielded a percentage score of 95.4%, and the comprehensibility test yielded a score of 92%.
Mapping Science Teacher Professionalism in Junior High Schools Emilia Candrawati; Ratnaningsih Eko Sardjono; Ijang Rohman; Binar Kurnia Prahani; Yendi; Yusi Riksa Yustiana; Ade Elvia; Mellyta Uliyandari
Didaktika: Jurnal Kependidikan Vol. 14 No. 2 Mei (2025): Didaktika Jurnal Kependidikan
Publisher : South Sulawesi Education Development (SSED)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58230/27454312.2039

Abstract

Teacher certification is a fulfillment of professional competence. In Bengkulu City, many junior high school science teachers are still uncertified. Therefore, mapping is needed to see the number of the junior high school science teachers who are certified and uncertified in Bengkulu City. This research uses descriptive qualitative methods through observation and interviews. The results showed that 109 junior high school science teachers in Bengkulu City are already certified and 65 are uncertified. There are 114 junior high school science teachers in Bengkulu City who are civil servants and 60 non-civil servants who teach in 47 junior high schools in Bengkulu City. Meanwhile, teachers who are called to join the in-service certification program must pass the Teacher Competency Test (UKG), which causes some teachers to fail to follow the next stage in the in-service teacher training program (PPG). Therefore, in order to fulfill the mandate of the Teachers and Lecturers Law 2015, it is recommended that the Bengkulu City Goverment and the Ministry of Education and Culture implement an accelerated teacher certification program to ensure that teachers are professional.
Developing a challenge-based corrosion e-book to enhance vocational students’ concept understanding and creative thinking skills Sjaeful Anwar; Santi Deva; Ijang Rohman; Harianti Harianti; Ropi Marlina; Billy Oktora Abdillah Fauzi
Jurnal Cakrawala Pendidikan Vol. 45 No. 2 (2026): Cakrawala Pendidikan (June 2026)
Publisher : LPMPP Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/cp.v45i2.98340

Abstract

This study aimed to develop a challenge-based corrosion e-book with a chassis coating context using the Four Steps Teaching Material Development (4STMD) method and to evaluate its effectiveness in enhancing vocational students’ concept understanding and creative thinking skills. A design and development research approach was employed, comprising design, development, and evaluation phases. The e-book was developed through the 4STMD stages of selection, structuring, characterization, and didactic reduction, yielding ten concept labels on corrosion and redox reactions contextualized within automotive chassis maintenance. The product was validated by expert reviewers and tested with 20 grade-XI students of a Light Vehicle Engineering program at a vocational school in Bandung, Indonesia. Expert evaluation indicated that the e-book was highly feasible across content, language, presentation, and graphic criteria. Student comprehensibility reached an average of 92%. A one-group pretest–posttest design with the Wilcoxon signed-rank test revealed statistically significant improvements (α = 0.05) in both concept understanding and creative thinking skills, the latter measured through Torrance’s indicators of fluency, flexibility, originality, and elaboration. A Spearman correlation of r = .985 confirmed a very strong positive relationship between the two outcomes. These findings demonstrate that integrating challenge-based learning with the 4STMD method in a vocationally relevant e-book effectively supports higher-order thinking in chemistry education for vocational students.
Enhancing Students' Conceptual Understanding of Hess's Law Through a Discovery Learning Model Integrated with a Simulator and Worksheets Nopiyanti Nopiyanti; Gun Gun Gumilar; Heli Siti Halimatul Munawaroh; Ijang Rohman; Muhammad Nurul Hana; Miarti Khikmatun Nais
Jambura Journal of Educational Chemistry Vol 8, No 2 (2026): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjec.v8i2.40151

Abstract

This study addresses the limited integration of Discovery Learning, a Hess’s Law Enthalpy Change Determination Simulator, and student worksheets (LKM). These components have generally been implemented separately or in different combinations in previous studies, and simulation-based learning in Hess’s Law remains limited. The study aimed to examine students’ conceptual understanding of Hess’s Law, both overall and across specific learning objectives, after implementing the Discovery Learning model integrated with a Hess’s Law Enthalpy Change Determination Simulator and student worksheets. The research employed a pre-experimental one-group pretest–posttest design involving 29 senior high school students. Data from the conceptual understanding test were analyzed using descriptive and inferential statistics. The paired-sample t-test revealed a statistically significant improvement from 35.06 to 63.22 (t= −8.11, p < 0.001). At the level of specific learning objectives, the Wilcoxon signed-rank test showed that students achieved greater gains in inferring Hess’s Law from comparisons of reaction pathways than in determining enthalpy change based on Hess’s Law. These findings indicate that the instructional approach was associated with improved conceptual understanding of Hess’s Law. This study suggests that integrating Discovery Learning with a Hess’s Law Enthalpy Change Determination Simulator and structured worksheets may support students’ conceptual understanding of Hess’s Law and serve as a practical instructional strategy in chemistry education.
Pengembangan Media Pembelajaran Interaktif Berbasis Website pada Submateri Teori Asam Basa Deira Angelina; Muhamad Nurul Hana; Miarti Khikmatun Nais; Ijang Rohman; Gun Gun Gumilar
JURNAL PENDIDIKAN MIPA Vol. 16 No. 4 (2026): JURNAL PENDIDIKAN MIPA
Publisher : Pusat Publikasi Ilmiah, STKIP Taman Siswa Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37630/jpm.v16i4.4942

Abstract

Pembelajaran teori asam basa memerlukan media yang mampu memvisualisasikan konsep abstrak dan meningkatkan keterlibatan peserta didik. Penelitian ini bertujuan melakukan pengembangan lanjutan media pembelajaran interaktif berbasis website pada submateri teori asam basa melalui penyelarasan aktivitas dalam media dengan tahapan Predict-Observe-Explain (POE), perangkat pembelajaran, serta fitur media. Metode penelitian yang digunakan adalah development research dengan mengadaptasi model pengembangan ADDIE (Analysis, Design, Development, Implementation, dan Evaluation). Data diperoleh melalui lembar validasi ahli serta angket tanggapan pendidik dan peserta didik yang dianalisis secara deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa pengembangan lanjutan dilakukan dengan mengubah platform media dari aplikasi berbasis smartphone (Android) menjadi berbasis website, mengintegrasikan sintaks Predict-Observe-Explain (POE) melalui penambahan aktivitas Predict berbasis video pada materi teori Arrhenius, serta menyempurnakan navigasi dan beberapa fitur media. Hasil validasi ahli menunjukkan bahwa media memperoleh persentase kelayakan sebesar 83,75% dengan kategori sangat layak, kemudian disempurnakan berdasarkan masukan validator sebelum dilakukan uji coba terbatas. Selanjutnya hasil uji coba terbatas menunjukkan bahwa media memperoleh persentase tanggapan sebesar 100% dari pendidik dan 97,03% dari peserta didik yang keduanya termasuk dalam kategori sangat baik. Dengan demikian, media pembelajaran interaktif berbasis website hasil pengembangan lanjutan layak digunakan sebagai alternatif media pembelajaran pada submateri teori asam basa.
Implementing a Challenge-Based Ethnoscience E-Book on Colloid Systems to Enhance Students’ Critical Thinking and Conceptual Understanding Sjaeful Anwar; Bagas Abdurachman; Ijang Rohman; Shiang-Yao Liu; Harianti Harianti
Jurnal Pendidikan IPA Indonesia Vol. 15 No. 1 (2026): March 2026
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpii.v15i1.33866

Abstract

Colloid learning is often difficult for students to relate to real-world phenomena, leading to a lack of conceptual understanding and critical thinking skills. One relevant local context for concretizing the concept of colloids is tofu waste treatment, which involves colloidal systems and environmental issues in the community. Integrating this ethnoscience context through Challenge-Based Learning has the potential to provide more contextual, meaningful, and authentic learning oriented toward problem-solving. This study aims to develop and demonstrate the impact of a Challenge-Based Ethnoscience e-book about colloids in the context of tofu waste treatment on improving students' conceptual understanding and critical thinking skills. This research method used Design and Development Research, consisting of three phases: design (needs analysis and product design), development (based on the 4STMD model), and evaluation (Students' critical thinking and conceptual understanding). Implementation was conducted with 30 eleventh-grade students. Critical thinking skills were measured using the Ennis framework, while conceptual understanding was assessed through context-based essay questions. Data were analyzed using the Wilcoxon test, Spearman correlation, and rank-biserial effect size. Results showed significant improvements in conceptual understanding and critical thinking skills, indicating consistent positive score changes across all participants. A very strong correlation was found between conceptual understanding and critical thinking skills, indicating a high degree of shared variance between the two. It can be concluded that the CBL e-book on ethnoscience related to colloid materials, developed according to the 4STMD, is a feasible and effective learning material for chemistry. This learning material aligns with the learning curriculum, is scientific, and organizes materials systematically through local wisdom, specifically in the context of tofu wastewater treatment, to enhance students' understanding of concepts and critical thinking skills.
Co-Authors Abdurachman, Bagas Abraham Mora Achmad Mudzakir Ade Elvia Adeng Slamet Agus Setiabudi Ali Kusrijadi Amalia, Vina Nurul Any Fitriani Asep Kadarohman Bagas Abdurachman Billy Oktora Abdillah Fauzi Binar Kurnia Prahani Budiman Anwar Candrawati, Emilia Cindy Lestari Deira Angelina Djaka Sasmita Elva Stiawan Emilia Candrawati Emilia Candrawati Ezha, Sephianti Dwika Firli Nurpatihah S Fitria Fathan Fransisca Sudargo Tapilouw Gun Gun Gumilar Gun Gun Gumilar Harianti Harianti Heli Siti Halimatul Heli Siti Munawaroh Hendrawan Hendrawan Hokcu Suhanda Iip Izul Falah Irvan Permana Lathifah, Siti Maulani Liliasari Liliasari , Mellyta Uliyandari Uliyandari Miarti Khikmatun Nais Mr Sjaeful Anwar Muhamad A. Martoprawiro Muhamad Nurul Hana Muhamad Nurul Hana Muhammad Nurul Hana Muhammad Syahrur Royhan Nabira Salwa Nais, Miarti Khikmatun Nopiyanti Nopiyanti Novi Nurhayati Nurhamida Anar Nurhayati, Mita Nurjanah, Desi Fauza Nurlatifah*, Nurlatifah Nursyahbana, Galih Lazuardi Nuryani Rustaman Omay Sumarna Pingky Chandra Priyanka Pusfitasari, Dewi Vitama Rahmat Setiadi Rahmat Setiadi Rahmat Setiadi Ramaulita, Thara Nabila Ratnaningsih Eko S. Ropi Marlina Santi Deva Satwika Trianti Ngandoh Shiang-Yao Liu Sianturi, Winda Fourthelina Sri Mulyani Sukasih Sukasih Triannisa Rahmawati Triannisa Rahmawati, Triannisa Yanti Herlanti Yanti Herlanti Yaya Sonjaya Yayan Sunarya Yendi Yuliani, Galuh Yusi Riksa Yustiana, Yusi Riksa