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Hambatan Belajar Siswa Kelas XI SMA pada Materi Persamaan Trigonometri Oktavihari, Dita; Priatna, Nanang; Avip Priatna, Bambang
Mandalika Mathematics and Educations Journal Vol 6 No 2 (2024): Edisi Desember
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v6i2.7980

This study aims to identify learning barriers experienced by students in trigonometric equation material. The type of research used is qualitative research with a phenomenological approach. The subjects of this study were 36 students of class XI SMAN 5 Mataram. Data collection used were tests, observations, interviews, and document studies. The data analysis technique used is according to Miles and Huberman consisting of data reduction, data presentation, and conclusion. The results obtained are that students experience ontogenic, epistemological, and didactic learning barriers. Instrumental ontogenic barriers, namely students are still hampered by key things in trigonometric equation material, students do not understand the meaning of k well in the trigonometric equation formula. Epistemological barriers, namely, students are constrained by prerequisite material, and students also experience limited context in solving the questions given. Didactic barriers are that students only follow what has been taught by the teacher during the learning process. This study can be a basis for making didactic designs so that learning can occur according to the objectives.

Pembimbingan Mahasiswa dalam Pemberdayaan Masyarakat Desa Lantan melalui Kegiatan Himatika Mengabdi Tahun 2024 Primajati, GIlang; Kurniawan, Eka; Supiarmo, M.Gunawan; Junaidi, Junaidi; Oktavihari, Dita; Amrullah, Amrullah
Rengganis Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2025): Mei 2025
Publisher : Pendidikan Matematika, FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/rengganis.v5i1.626

The HIMATIKA Mengabdi 2024 Mentorship Program is a form of community service carried out by lecturers and students of the Mathematics Education Study Program at the University of Mataram in Lantan Village. The main objective of this activity is to enhance students' social awareness and contribute meaningfully to the fields of education, health, and community empowerment. The program included various initiatives such as HIMATIKA Goes to School (HGTS), revitalization of the Creative Park, teaching at the TPQ (Qur'anic Learning Center), stunting awareness campaigns, health check-ups, community clean-up activities, and a cultural night celebration. The results show that active student participation successfully increased students’ motivation to learn, raised community awareness about the importance of nutrition and health, and strengthened social ties among residents. These outcomes were analyzed using the Experiential Learning and Community Empowerment approaches to explain the impact of interdisciplinary student involvement in community service. This program demonstrates that integrating academic knowledge into community service can be an effective learning medium for students while simultaneously generating sustainable positive impacts for rural communities.

Systematic Literature Review: Analisis Hambatan Belajar Siswa dalam Materi Matematika SMP Oktavihari, Dita; Kertiyani, Ni Made Intan
Griya Journal of Mathematics Education and Application Vol. 5 No. 2 (2025): Juni 2025
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v5i2.592

Difficulties in learning can be one of the factors that cause learning obstacles. Learning obstacles can interfere with students' learning process internally and externally. This study aims to analyze learning obstacles that arise at the junior high school level to be the basis for making further designs. The research methodology used is a systematic literature review by collecting articles related to learning obstacles at the junior high school level. The data analysis technique used is data extraction. The data obtained were 15 articles related to learning obstacles in mathematics material at the junior high school level in the 2021-2024 period. The results obtained were ontogenic barriers, epistemological barriers, and didactic barriers. The ontogenic barriers obtained were students' unpreparedness during learning, lack of interest and motivation to learn, and lack of understanding of prerequisite material. The epistemological barriers obtained were misconceptions, unable to understand, identify, and analyze problems, inaccuracy, and limitations in solving the questions given. The didactic barriers obtained were teacher-centered learning, fast learning rhythm, inappropriate teaching material arrangements, and inadequate school facilities. Based on the obstacles obtained, a learning flow can be designed, and a didactic design can be developed to minimize the emergence of these learning obstacles.

Representasi Matematis Siswa Kelas VIII pada Materi Segiempat Ditinjau dari Gaya Belajar Honey Mumford Tipe Aktivis Utama, Alfian Eka; Oktavihari, Dita
Griya Journal of Mathematics Education and Application Vol. 5 No. 2 (2025): Juni 2025
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v5i2.668

Mathematical representation ability is one of the essential and fundamental components that students need to express their mathematical ideas during the learning process. However, field observations show that students' ability to represent mathematical ideas is still relatively low, including those related to the topic of quadrilaterals. This condition is influenced by the diversity in students’ learning processes, one of which is caused by differences in learning styles. To investigate this issue, a study is needed to obtain a comprehensive description of students' forms of mathematical representation in solving quadrilateral problems, viewed from the perspective of their learning styles. The learning style used in this study is Honey and Mumford's learning style model. This study employed a qualitative approach with a phenomenological design. The subjects of the study were three eighth-grade students from MTsN in Mataram City. The data collection techniques used in this study were questionnaires, tests, and interviews. The results showed that students with an activist learning style tend to experience difficulties in modeling their ideas geometrically when solving problems related to quadrilaterals. They were less able to model and interpret problems in detail. However, when faced with problems that involved representing their ideas to find solutions to real-life situations, in general, students with an activist learning style were able to find appropriate solutions.

Pengembangan Media Interaktif untuk Penyelesaian Sistem Persamaan Linear Metode Eliminasi Gauss Berbasis Matlab Guide pada Program Studi Pendidikan Matematika Primajati, Gilang; Oktavihari, Dita; Supiarmo, M. Gunawan
Jurnal el-Huda Vol 16 No 01 (2025): Jurnal el-Huda
Publisher : LP2M, Institut Agama Islam Qamarul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59702/el-huda.v16i01.219

This study aims to develop an interactive learning media in the form of a GUI (Graphical User Interface) application using MATLAB GUIDE to solve Systems of Linear Equations (SLE) through the Gaussian elimination method. The research method employed is descriptive qualitative with a software development approach, encompassing stages such as needs analysis, interface design, algorithm implementation, and documentation. The developed application enables users to input the coefficients and constants of the SLE, compute the solutions using Gaussian elimination, and display the results in both numerical and visual forms (2D and 3D graphs). The research findings show that the application can solve SLE automatically, quickly, and accurately, and features a simple, user-friendly, and practical interface, as reflected by a practicality questionnaire score of 96.1%. This media is expected to serve as a supportive tool in mathematics education, particularly in enhancing students’ understanding of SLE concepts in mathematics education programs.

Peran Problem Based Learning terhadap Proses Berpikir Kritis Siswa Oktavihari, Dita; Primajati, Gilang
Jurnal el-Huda Vol 16 No 01 (2025): Jurnal el-Huda
Publisher : LP2M, Institut Agama Islam Qamarul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59702/el-huda.v16i01.235

Critical thinking skills are important 21st-century skills that students must have to face global challenges. However, the reality in the field shows that most learning is still teacher-centered and oriented toward memorization, not problem-solving. This article aims to examine the role of the Problem-Based Learning (PBL) model in developing students' critical thinking skills through a literature study approach. The method used is a literature study with a review of 20 scientific articles published in the last five years, using the PRISMA protocol. The results of the analysis show that PBL consistently has a positive impact on improving students' critical thinking skills at various levels and subjects, especially mathematics. The aspects of critical thinking that develop include analysis, evaluation, inference, and explanation. PBL has also been shown to increase students' motivation, activeness, and courage in expressing their opinions. The use of digital media such as e-modules, interactive LKPD, and integration with the flipped classroom and STEM approaches further strengthen the effectiveness of PBL. In addition, individual characteristics of students such as interpersonal intelligence and self-efficacy also influence the success of PBL implementation. These findings strengthen that PBL is a strategic and adaptive learning approach to developing critical thinking skills systematically and sustainably.

Challenges in Designing Learning Media among Mathematics Education Students Salsabila, Nilza Humaira; Novitasari, Dwi; Triutami, Tabita Wahyu; Lu’luilmaknun, Ulfa; Kertiyani, Ni Made Intan; Oktavihari, Dita
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9630

This study aims to describe the challenges or difficulties faced by mathematics education students in designing learning media, especially student worksheet, interactive presentation slides, and educational video. This research is a quantitative descriptive research with the subjects in this study are 4th semester students enrolled in the Mathematics Learning Technology course, as many as 23. Data collection was carried out through distributing questionnaires to students regarding their difficulties in developing media. The results showed that students experienced the most difficulties in developing educational videos compared to student worksheet, interactive presentation slides. The main difficulties in educational videos include technical skills such as editing, flow design, and application usage.

Optimalisasi Kompetensi Guru SD Melalui Pelatihan Penyusunan Evaluasi Pembelajaran Matematika Interaktif Berbantuan Artificial Intelligence (AI) di Gugus Suela Lombok Timur Tyaningsih, Ratna Yulis; Sarjana, Ketut; Baidowi, Baidowi; Salsabila, Nilza Humaira; Oktavihari, Dita; Qorni, Wais Al
Rengganis Jurnal Pengabdian Masyarakat Vol. 5 No. 2 (2025): November 2025
Publisher : Pendidikan Matematika, FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/rengganis.v5i2.845

The ability to design learning assessments is an essential competence for teachers to measure students’ achievement, evaluate the effectiveness of the learning process, and provide constructive feedback. This community service program was carried out to enhance the competence of elementary school teachers in the Suela Cluster, East Lombok, in developing relevant, interactive mathematics assessments supported by Artificial Intelligence (AI). The implementation method consisted of five stages: (1) needs analysis through teacher interviews, (2) intensive training on the use of AI and supporting applications such as Canva Magic AI and Almanack, (3) workshops on interactive assessment design, (4) classroom implementation mentoring, and (5) focus group discussions (FGD) on implementation results. Data were collected using questionnaires completed by 15 teachers, covering 13 indicators that assessed clarity of material delivery, trainer mastery, relevance, participation, usefulness, and the impact of training on teaching practice. The results showed that the average score per indicator ranged from 3.60 to 3.87 (scale 1–4), with the highest scores in clarity of delivery and relevance, and the lowest in time effectiveness. Qualitative analysis emphasized the need for longer duration, more varied practice examples (especially for lower grades), deeper materials, and program sustainability. Thus, the training proved effective in improving elementary school teachers’ competence in understanding and utilizing AI for mathematics assessment, although optimization is still required in technical aspects and program continuity.

Coaching Clinic Penggunaan Media Asesmen Digital Berbasis Website sebagai Sarana Evaluasi Pembelajaran di SDN 4 Suntalangu Gilang Primajati; Lu’luilmaknun, Ulfa; Supiarmo, M.Gunawan; Oktavihari, Dita; Apriliska, Sasa
Rengganis Jurnal Pengabdian Masyarakat Vol. 5 No. 2 (2025): November 2025
Publisher : Pendidikan Matematika, FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/rengganis.v5i2.846

SDN 4 Suntalangu is a school located at the foot of Mount Rinjani, precisely in Suela Sub-district, East Lombok Regency. The limitations of facilities and the lack of technologically literate educators in keeping up with current developments are important issues to note. Therefore, the implementation of a coaching clinic program on the use of website-based digital assessment media as an evaluation tool is a necessity for teachers at SDN 4 Suntalangu in order to enhance their skills in utilizing digital technology as a means of learning evaluation. In the digital era, website-based assessments offer an efficient and practical alternative compared to conventional methods such as paper-based assessments. There are many advantages to conducting digital, website-based learning evaluations, including making the learning process more engaging since students can learn visually and directly. Moreover, assessment results can be obtained in real time, so teachers no longer have to manually grade each student’s work one by one. However, many teachers still face limited understanding in designing and using digital assessment media, which leads to less optimal learning evaluation. The purpose of this program is to equip teachers with the knowledge and skills to use website-based assessment media, to improve the quality of learning evaluation, and to support the achievement of a more effective and modern learning process. The implementation method of this program consists of three main stages. First, the socialization stage to introduce the concept and benefits of digital assessment media. Second, technical training (hands-on training) to teach how to create and manage website-based assessments using both free and paid platforms. Third, intensive mentoring to assist teachers in implementing these assessment tools in classroom learning. The expected outcomes of this community service program include scientific publications in ISSN-registered journals and the dissemination of results online through the Mathematics Education Study Program website, which is connected to the Faculty of Teacher Training and Education (FKIP) website at the University of Mataram. An additional expected outcome is the utilization of the website-based assessment applications/programs developed through this program in classes of certain courses.

Concept Image Siswa dalam Materi Barisan dan Deret pada Pembelajaran Berdiferensiasi Oktavihari, Dita; Junaidi, Junaidi; Primajati, Gilang; Supiarmo, M. Gunawan; Kurniawan, Eka; Hendrawan, Alvano Tugas
Mandalika Mathematics and Educations Journal Vol 7 No 4 (2025): Desember
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i4.11044

This study aims to describe students' concept images on sequences and series in differentiated learning and to examine the concept image gap between students, teachers, and mathematicians. This study used a qualitative approach with a didactic design and a hermeneutic phenomenology method. The research subjects included students, teachers, and mathematicians, who were selected purposively. Data were collected through learning observations, questionnaires, and in-depth interviews, and then analyzed using data reduction, data presentation, and conclusion-drawing techniques. The results showed that students' conceptual images of sequences and series were dominated by intuitive, visual, and procedural understandings. Students were able to recognize real-world patterns and contexts, but tended to rely on repeated addition or multiplication rather than using formal definitions and symbolic formulas. In geometric sequences and series, a concept image conflict was found due to students' difficulty in understanding exponential growth patterns. Although differentiated learning provides space for diverse student learning styles, the results show that this approach does not fully guarantee the formation of a complete formal conceptual understanding. Therefore, strengthening conceptual scaffolding is needed so that students' concept images are more aligned with the correct concept definition. Penelitian ini bertujuan untuk mendeskripsikan concept image siswa pada materi barisan dan deret dalam pembelajaran berdiferensiasi serta mengkaji kesenjangan concept image antara siswa, guru, dan matematikawan. Penelitian ini menggunakan pendekatan kualitatif dengan desain didaktis dan metode fenomenologi hermeneutik. Subjek penelitian meliputi siswa, guru, dan matematikawan, yang dipilih secara purposif. Pengumpulan data dilakukan melalui observasi pembelajaran, kuesioner, serta wawancara mendalam, kemudian dianalisis menggunakan teknik reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa concept image siswa pada materi barisan dan deret didominasi oleh pemahaman intuitif, visual, dan prosedural. Siswa mampu mengenali pola dan konteks nyata, namun cenderung mengandalkan penjumlahan atau perkalian berulang dibandingkan penggunaan definisi formal dan rumus simbolik. Pada barisan dan deret geometri, ditemukan conflict concept image akibat kesulitan siswa dalam memahami pola pertumbuhan eksponensial. Meskipun pembelajaran berdiferensiasi memberikan ruang bagi keberagaman cara belajar siswa, hasil penelitian menunjukkan bahwa pendekatan ini belum sepenuhnya menjamin terbentuknya pemahaman konseptual formal yang utuh. Oleh karena itu, diperlukan penguatan scaffolding konseptual agar concept image siswa lebih selaras dengan concept definition yang benar.

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