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Haji, H Saleh

Universitas Bengkulu

Author-ID : 3332272

Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Physics Public Health Social Sciences Other

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Ethnomatematics-Based Learning Media for Junior High School Mathematics using Rejang Lebong as Bengkulu Traditional House Gusvarini, Elsa Putri; Zamzaili, Zamzaili; Haji, Saleh
Jurnal Pendidikan MIPA Vol 23, No 4 (2022): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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The purpose of this research is to develop the mathematics learning media with ethnomathematics base for SMP (Junior High School) students at traditional house of Rejang Lebong and the media must valid, practice and effective. The research which used is research which developed by using ADDIE model with 5 steps, they are: (1) Analysis, (2) Design, (3) Development, (4) Implementation, and (5) evaluation. The subjects in this research are 24 students of class VIII of SMP Negeri 36 Rejang Lebong. The data instrument which collected in this research consist of validity sheet, practical sheet and a sheet of concept understanding capability test. Data are analyzed by using descriptive statistics to describe the average from students’ concept understanding. Validity is analyzed by using Aiken Index. The result shows that mathematics learning media with ethnomathematics base at Rumah Adat Rejang Lebong is Valid with average Aiken Index score on material aspect is 0,81 and media aspect is 0,92 with valid criteria. Learning media has practical criteria from the teacher and students’’ point of view. Interactive learning media product with ethnomathematics has followed the effective criteria according to students’ capability in understanding the concept. It is showed from the percentage of students’ completeness achievement is 82,68% with average score is 83,33.Keywords: development research, ethnomathematics, rumah adat, concept understandingDOI: http://dx.doi.org/10.23960/jpmipa/v23i4.pp1382-1394

The Effect of Mathematical Literacy, Motivation and Student’s Independence toward Mathematical Problem Solving Ability Meilani, Rina; Haji, Saleh; Sekarwinahyu, Mestika
Jurnal Pendidikan MIPA Vol 24, No 1 (2023): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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Students' ability to solve mathematical problems is still low, students often experience obstacles in understanding problems so that they are less precise in choosing and using solving strategies from non-routine problems. There are many factors that influence this, so the purpose of this study is to assess several factors such as the influence of mathematical literacy on mathematical problem solving abilities, the effect of learning motivation on mathematical problem solving skills, the influence of independence on mathematical problem solving skills and the influence of mathematical literacy, motivation, and independence of the ability to solve mathematical problems. The method used is a quantitative method by making SMAN 1 Indralaya the object of research. The results of this study include mathematical literacy, learning motivation, learning independence and have a positive and significant effect on mathematical problem-solving abilities and the ability of the independent variables in this study to affect the dependent variable by 20.2%, while the remaining 79.8% is explained by variables other than variables independent in research.Keywords: mathematical literacy, motivation, independence, problem solving.DOI: http://dx.doi.org/10.23960/jpmipa/v24i1.pp275-290

Enhancing the Ability of 'Spatial Nets' through Outdoor Learning-Based on Traditional Game 'Baju Simi' Yumiati, Yumiati; Haji, Saleh; Antasari, Melisa
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 7, No 4 (2023): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v7i4.16411

Traditional games are rooted in a regional culture with educational values that are important for future generations. These educational values, among others, contain various mathematical concepts (geometry). This study aims to improve students' Spatial Nets ability through the outdoor learning-based traditional game 'Baju Simi.' The type of research used is classroom action research. The research subjects were 20 students of class VI Sekolah Dasar Negeri 98 Kaur, Bengkulu. The study was conducted in the Even Semester 2022/2023. The instrument used is a test on 'Spatial Nets' with as many as ten essay questions. In addition, it also uses questionnaire instruments, observation guidelines, and interview guidelines. Data were analyzed qualitatively. The results obtained are as follows: (1) In Cycle 1, there was an increase in the ability of 'spatial nets' by 0.21 with low pre-test and post-test scores of 45 and 56.5, respectively; and (2) In Cycle 2, there was an increase in the ability of 'spatial nets' by 0.36 with an average pre-test and post-test score of 53 and 70.25 respectively. As many as 92% of students can understand the meaning of space-building nets correctly. 87% and 82% of students can precisely define the webs of cubes and blocks. This study implies that traditional games can be used as a medium and source of learning mathematics (geometry) in elementary schools so that students are highly motivated (4.2 on a scale of 5) in learning mathematics (geometry).

Improving Mathematics Learning Outcome Through Outdoor Learning Based on Ethnomathematics of Bengkulu’s Traditional Game ‘Gotri Ayo Gotri Yumiati, Yumiati; Haji, Saleh; Yulitasari, Eka
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 7, No 1 (2023): January
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v7i1.10189

Many high school students have difficulty learning probability material. Meanwhile, probability is very important to be applied in everyday life, for example, in estimating and drawing conclusions based on the analysis of an experiment. Therefore, students' understanding of probabilities needs to be improved through learning that invites students to real situations. This study aims to improve the mathematics learning outcomes of probability topics (counting, permutations, combinations, and probabilities) through ethnomathematical outdoor learning based on the game 'Gotri Ayo Gotri (GAG)' for XII Class senior high school. The research method is a classroom action research with the following cycle stages: planning, action, reflection, and evaluation. The research subjects were 33 students (20 female students and 13 male students). The research instrument was a learning outcome test about the probability of as many as five items. Data were analyzed qualitatively. The results of the study are as follows: outdoor learning based on the ethnomathematics of the game 'Gotri Ayo Gotri (GAG)' can improve mathematics learning outcomes on probability topics with an average score of cycle 1 of 65.91, cycle 2 of 79.97, and cycle three score of 89.97. The novelty in this research is the form of the traditional Bengkulu GAG game. As an alternative to learning, it is recommended for high school mathematics teachers to apply traditional game-based learning outside the classroom to increase motivation and learning outcomes in mathematics.

Basic Concepts and Values of Mathematics in Bengkulu Traditional Musical Instruments as Media and Resources for Learning Mathematics Haji, Saleh; Yumiati, Yumiati; Zamzaili, Zamzaili
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 6, No 4 (2022): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v6i4.10220

This study aims to determine the basic concepts and values of mathematics contained in traditional Bengkulu musical instruments in elementary schools. The urgency of this research is to use regional culture in learning mathematics theoretically and practically as a medium and source of learning mathematics through learning outside the classroom to achieve the objectives of learning mathematics in elementary schools. This research method is a qualitative method with an ethnographic approach. Data sources are in the form of traditional Bengkulu musical instruments, namely dhol, tassa, long drums, and serunai. Other data sources are documents and interviews with experts and practitioners of Bengkulu traditional musical instruments. The data were analyzed qualitatively with the method of content analysis. The result of this study shows that the basic mathematical concepts in Bengkulu traditional musical instruments are points, lines, angles, triangles, quadrilaterals, kites, circles, tubes, half balls, cut balls, cut cones, universes, and patterns. At the same time, the mathematical values contained in traditional Bengkulu musical instruments are obeying the rules, consistency, creativity, and cooperation. Therefore, as an alternative to effective learning in elementary schools, Bengkulu traditional musical instruments can be used as a medium and source of learning mathematics outside the classroom.

Effectiveness of understanding by design-based e-modules in higher education mathematics: A Systematic literature network analysis Yumiati; Haji, Saleh; Ramadhani, Muhammad
Al-Jabar: Jurnal Pendidikan Matematika Vol 16 No 2 (2025): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v16i2.28872

Purpose: This study investigates how e-modules built on the Understanding by Design (UbD) framework contribute to shaping university students’ conceptual understanding in mathematics. Beyond estimating the size of their impact, the study also looks at how research on UbD and digital learning materials has grown and shifted over the last decade, revealing patterns that often go unnoticed in conventional reviews. Method: To achieve this, the study adopts a Systematic Literature Network Analysis (SLNA), an approach that brings together a structured review, quantitative meta-analysis, and bibliometric mapping. A search of the Scopus database covering 2015–2025 was screened using PRISMA guidelines, resulting in forty studies that met the criteria. Twenty-two of these provided extractable quantitative data for calculating effect sizes. Bibliometric analysis using VOSviewer helped trace recurring themes, keyword relationships, and changes in research direction over time. Findings: The evidence points to a consistent advantage for UbD-based e-modules, with the meta-analysis showing a moderate-to-large improvement in conceptual understanding (g = 0.62). Most studies reported positive results, though the level of UbD implementation played a crucial role—programs that applied the framework more faithfully produced notably stronger outcomes. Network analysis revealed six dominant thematic clusters and showed a gradual movement toward digital pedagogy, assessment alignment, and emerging AI applications. Several gaps remain, particularly in measuring long-term retention and developing reliable fidelity instruments. Significance: The study underscores that the strength of UbD-based e-modules lies not in the technology itself but in thoughtful, goal-oriented design. By pairing empirical synthesis with network insights, the findings offer both practical guidance and a clearer map of where future work is most urgently needed.

Reconceptualizing authenticity in problem-based learning for linear algebra course: A multi-stakeholder analysis of video-based hybrid instruction Haji, Saleh; Yumiati, Yumiati; Wijaya, Tommy Tanu
International Journal of Didactic Mathematics in Distance Education Vol. 3 No. 1 (2026): ijdmde (in Progress)
Publisher : Universitas Terbuka

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This study develops an integrated video-based hybrid online learning model with problem-based learning (PBL) for Linear Algebra instruction in resource-constrained contexts. A qualitative case study with three experts and five students using thematic analysis yielded 13 codes organized into five themes: technological challenges, video characteristics, hybrid architecture, PBL implementation, and motivation strategies. Findings reveal that 100% of participants identified infrastructure constraints as primary barriers, necessitating downloadable mobile-optimized content. Optimal video specifications include 15-20 minute instructor-led explanations with embedded interactivity. The study reconceptualizes 'authentic problems' for abstract mathematics from contextual realism to conceptual genuineness, demonstrating that effective PBL engages genuine mathematical thinking—comparing representations, investigating theorems, exploring counterexamples, rather than forced real-world applications. The developed three-phase hybrid model integrates asynchronous video foundation, synchronous collaborative problem-solving, and asynchronous portfolio consolidation. Multi-stakeholder convergence on core principles provides robust design guidance, while divergences regarding scaffolding and accessibility illuminate implementation challenges. The study contributes theoretically by challenging traditional PBL frameworks for abstract domains and methodologically by demonstrating that integrating expert pedagogical knowledge with student experiential perspectives yields contextually feasible models. Practical implications address institutional digital learning policies, LMS developer feature priorities, and educator implementation guidelines adaptable across resource-constrained contexts globally.

Co-Authors ., Yumiati Abdulhamid Hamza Abdurrobbil Falaq Dwi Anggoro Agung Setia Budi Agus Susanta Agus Susanta Agustinsa, Ringki Aliya Monika Br Ginting Amelia Sari Anak Agung Istri Sri Wiadnyani Annisa Al Karimah Antasari, Melisa Aqiela Mardhatillah Astria, Ririn Audaya, Robiatul Badeni Badeni, Badeni Baki Swita Baki Swita Bella Trinofita Berta Panduwinata Bonyah, Ebenezer Br Ginting, Aliya Monika Clara Ade Utami Detty Syefriyani Dewi Herawaty Dian Oktari Dita Yustika Septiyani Diya'uddeen Basheer Hasan Dodi Isran Dona Eka Safitriyanti Dwi Putri, Geza Dwi Yanti Dwi Yanti Eka Yulitasari Elsa Putri Gusvarini Elsa Putri Gusvarini Etika Prameswari Fashali, Agju Jihan Indri Fatrima Santri Syafri, Fatrima Santri Febrila, Lilia Gina Ginta Octizasari Gusvarini, Elsa Putri Gyzka Veliesa Hafizatul Ardy Hanifah Hanifah Hanifah Hanifah hanifah hanifah Hardini Agustika Harry Dwi Putra, Harry Dwi Hudiria, Inda Ilham Abdullah Ilham Abdullah Ilham Abdullah, Ilham Inda Hudiria Juliani, Linda Yeka Keke Berlinda M Ilham Abdullah M Ilham Abdullah Marliani, Depi Melisa Antasari Mestika Sekarwinahyu Mestika Sekarwinahyu Muhammad Yogi Ramadhan Mulyani, Arie Nesta, Ridho Agio Nirwana Nirwana Nirwana Nirwana Nopriza Rahmawati Novianita, Lizza Novita Tanti Nugraha, Arief Nugroho, Khathibul Umam Z Nurcahyati, Sari Azni Nurliyan Hidayati, Latifa Octizasari, Ginta Octizasari, Ginta Putra, Syalendra Putri, Cindy Samya Rahmi Maiyunda Sari Ramadhani, Muhammad Raudya Tuzzahra Ridwanul Fata Rina Meilani Rina Meilani, Rina Ririn Astria Riyani, Rizki Rizki Riyani Robiatul Audaya Rodríguez-Nieto, Camilo Andrés Sri Hartati Sri Hartati Sri Hartati Sri Mulianti Sudirman Sudirman Suharto Suharto Sumardi, Hari Susanta, Agus Syafdi Maizora Syefriyani Detty Trihasari, Shelly Virgiano, M. Andre Wahyu Widada Wahyu Widada Wanti Asmara Widya Paramita Sari Wijaya, Tommy Tanu Yana Royana Yensy B, Nurul Astuty Yetti Widiarti Yori Yupiter Juliansyah Yuliani Nasution Yulitasari, Eka Yumiati Zamzaili Zamzaili Zamzaili Zamzaili Zamzaili Zamzaili Zamzaili Zamzaili Zamzaili Zamzaili Zamzaili Zamzaili Zamzaili, Zamzaili Zamzaili, Zamzaili

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