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All Journal International Journal of Electrical and Computer Engineering SAINSMAT TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics AKSIOMA: Jurnal Program Studi Pendidikan Matematika JIPM (Jurnal Ilmiah Pendidikan Matematika) Jurnal Gantang Briliant: Jurnal Riset dan Konseptual Jurnal Kajian Pembelajaran Matematika Jurnal Mercumatika : Jurnal Penelitian Matematika dan Pendidikan Matematika PRISMA BAREKENG: Jurnal Ilmu Matematika dan Terapan Indiktika : Jurnal Inovasi Pendidikan Matematika M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Vygotsky: Jurnal Pendidikan Matematika dan Matematika InPrime: Indonesian Journal Of Pure And Applied Mathematics Jurnal Kajian Matematika dan Aplikasinya ALINIER: Journal of Artificial Intelligence & Applications MATHunesa: Jurnal Ilmiah Matematika SinarFe7 Journal of Social Outreach Euclid Science and Education Journal Kreano, Jurnal Matematika Kreatif Inovatif Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS) ABDINE :Jurnal Pengabdian Masyarakat
Vita Kusumasari
Universitas Negeri Malang
Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Development of Mathematics E-Modules with Cultural Context to Support Mathematical Literacy A'yun, Rhoro Qurota; Anwar, Lathiful; Kusumasari, Vita
Vygotsky: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 1 (2025): Vygotsky: Jurnal Pendidikan Matematika dan Matematika
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/voj.v7i1.1139

Abstract

This research aims to develop a culture-based mathematics E-Module to support students' mathematical literacy in a valid, practical, and effective way. The ADDIE development model was used in this research. Data was collected with validation sheets, response questionnaires, and evaluation questions and analyzed descriptively qualitative and quantitative. The validity of the E-Module, with a validation score of 81.5%, fits the valid criteria. Practicality with a response questionnaire score of 90.49% according to practical criteria. Effectiveness was assessed from student evaluation results with an average  percentage of 63.166% according to somewhat effective criteria. The results showed that the E-Module with cultural context is feasible and practical and has a positive impact on improving students' mathematical literacy skills.
Peningkatan Pedagogical Content Knowledge Mahasiswa Pendidikan Profesi Guru: Kajian Pengembangan Soal Asesmen Muhammad Alfan; Vita Kusumasari; Arief Darmawan; Esti Untari; Henik Nur Khofiyah; Niswatul Lutfiana; Wahyu Lukita Mubarokah
Science and Education Journal (SICEDU) Vol 5 No 2 (2026): Science and Education Journal 2026
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/sicedu.v5i2.771

Abstract

Penelitian ini bertujuan untuk mengembangkan instrumen asesmen berbasis pendekatan, strategi, model, metode, teknik, dan media pembelajaran yang sesuai untuk evaluasi pembelajaran. Metode penelitian dan pengembangan (R&D) diterapkan dengan menggunakan model ADDIE, yang mencakup tahapan analisis, perancangan, pengembangan, implementasi, dan evaluasi. Data dikumpulkan melalui kuesioner yang diisi oleh validator ahli. Validasi dilakukan untuk menilai tiga aspek, yaitu materi, konstruksi, dan bahasa, menggunakan skala Likert. Hasil penelitian menunjukkan bahwa soal asesmen yang dikembangkan memiliki tingkat validitas yang tinggi, dengan persentase nilai untuk aspek materi sebesar 86,1%-87,8%, konstruksi 75,7%-98,4%, dan bahasa 96,9%-100%. Berdasarkan hasil tersebut, instrumen asesmen ini dianggap layak dan efektif digunakan dalam evaluasi pembelajaran, khususnya yang melibatkan kompetensi pedagogik.
Development of triangular array eight patches antennas for circularly-polarized synthetic aperture radar sensor Muhammad Fauzan Edy Purnomo; Vita Kusumasari; Edi Supriana; Rusmi Ambarwati; Akio Kitagawa
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 18, No 2: April 2020
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v18i2.14759

Abstract

In this paper, we obtain the left-handed circularly polarized (LHCP) and right-handed circularly polarized (RHCP) of triangular array eight patches antennas using corporate feeding-line for circularly polarized-synthetic aperture radar (CP-SAR) sensor embedded on unmanned aerial vehicle (UAV) with compact, simple, and efficient configuration. Although the corporate feeding-line design has already been developed, its design was for the side antenna view of 0° and only produced one of LHCP or RHCP instead of both. Here, the design for LHCP and RHCP eight patches array fed by corporate feeding-line having the side antenna view of 36° at f=1.25 GHz for CP-SAR are discussed. We use the 2016 version of computer simulation technology (CST) to realize the method of moments (MoM) for analyzing. The performance results, especially for gain and axial ratio (Ar) at resonant frequency are consecutively 13.46 dBic and 1.99 dB both of LHCP and RHCP. Moreover, the 12-dBic gain-bandwidth and the 3-dB Ar-bandwidth of them are consecutively around 38 MHz (3.04%) and 6 MHz (0.48%). Furthermore, the two-beams appeared at boresight in elevation plane for average beamwidth of 12 dBic-gain and the 3 dB-Ar LHCP and RHCP have similar values of around 12° and 46°, respectively.
Pengembangan LKPD Berbasis Problem Based Learning Bermuatan Etnomatematika pada Materi Bangun Ruang untuk Mendukung Kemampuan Visual Spasial Khikmatus Shahrin Maghfiroh; Vita Kusumasari
JIPM (Jurnal Ilmiah Pendidikan Matematika) Vol. 14 No. 1 (2025)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jipm.v14i1.22299

Abstract

Penelitian ini mempunyai tujuan untuk mengembangkan LKPD berbasis Problem Based Learning (PBL) bermuatan etnomatematika pada materi bangun ruang yang valid, praktis, dan efektif dalam mendukung kemampuan visual spasial matematis peserta didik. Proses pengembangan pada penelitian ini mengikuti model Educational Design Research (EDR) oleh Plomp dan Nieveen yang memiliki 3 tahap, yakni preliminary research, prototyphing phase, dan assessment phase. Uji validitas LKPD dilakukan dengan melibatkan para ahli, sedangkan uji kepraktisan dan efektivitas LKPD dilakukan melalui uji coba kepada peserta didik. Adapun instrumen yang digunakan, yakni lembar validasi, angket peserta didik, dan soal tes penguasaan LKPD. Hasil penelitian menunjukkan bahwa penelitian ini berhasil mengembangkan produk LKPD yang sangat valid dengan skor sebesar 83%, berarti LKPD berbasis problem based learning bermuatan etnomatematika valid untuk diterapkan dalam pembelajaran guna mendukung kemampuan visual spasial matematis. Selain itu, LKPD juga dikatakan praktis dan efektif untuk diterapkan dalam pembelajaran guna mendukung kemampuan visual spasial matematis dengan persentase yang sama sebesar 78%. Penelitian ini memberikan keterbaruan dari studi sebelumnya dengan mengembangkan LKPD yang memadukan PBL, Geogebra, dan etnomatematika. Integrasi ketiga komponen tersebut terbukti efektif untuk mendukung kemampuan visual spasial matematis peserta didik. Dengan demikian, disimpulkan bahwa LKPD berbasis PBL bermuatan etnomatematika yang dikembangkan telah valid, praktis, dan efektif dalam mendukung kemampuan visual spasial matematis peserta didik.   This study aims to develop a valid, practical, and effective LKPD based on Problem-Based Learning (PBL) with an ethnomathematics approach to support students' mathematical visual-spatial abilities. The development process in this study follows the Educational Design Research (EDR) method by Plomp and Nieveen which has 3 stages, namely preliminary research, prototyping phase, and assessment phase. The validity test of the LKPD was carried out by involving experts, while the practicality and effectiveness test of the LKPD was carried out through trials on students. This study uses 3 data collection instruments, validation sheets, student questionnaires, and LKPD mastery test questions. The results indicate that this study has succeeded in developing a very valid LKPD product with a score of 83%, meaning that the LKPD based on problem-based learning with a mathematical approach is valid to be applied in learning process to support mathematical spatial visual ability. In addition, LKPD is also said to be practical and effective to be used in the learning process to support mathematical spatial visual abilities with equal percentages of 78%. This study contributes novelty compared to previous research by developing an LKPD that integrates PBL, GeoGebra, and ethnomathematics. The combination of these three components has proven effective in supporting students' mathematical visual-spatial skills. Thus, it is concluded that the LKPD based on PBL with an ethnomathematics approach is valid, practical, and effective in supporting students' mathematical visual-spatial abilities.
Analisis Model SITR dengan Tes Viral Load Pada Penyebaran Penyakit HIV di Indonesia Anggita Retno Kristanti; Vita Kusumasari
BRILIANT: Jurnal Riset dan Konseptual Vol 11 No 1 (2026): Volume 11 Nomor 1, Februari 2026
Publisher : Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/briliant.v11i1.2050

Abstract

Human Immunodeficiency Virus (HIV) is a virus that attacks white blood cells in the body. Until now, HIV is still one of the world's health problems. Mathematical models have an important role in understanding the dynamics of a disease epidemic. The purpose of this study is to model and analyze the spread of HIV disease in Indonesia using the SITR model with viral load tests. This model divides the population into four subpopulations, namely Susceptible (S) or subpopulations that are susceptible to contracting the disease, Infected (I) or subpopulations that are infected with HIV, Treatment (T) or subpopulations that are infected with HIV and receive ARV treatment, and Recovery (R) or subpopulations whose viral load test results are suppressed after taking ARV treatment. The model analysis was conducted with model assumptions, parameter estimation, equilibrium point determination, equilibrium point stability analysis, and numerical simulation using Maple18. Based on the analysis, the value of =10,52749285 is obtained, which means that the model is asymptotically stable towards the endemic equilibrium point.
The Development of Learning Media Based on Malangan Ethnomathematics to Support Self-Regulated Learning of Junior High School Students M. Nashihul Mukminin; Vita Kusumasari
Euclid Vol 12 No 1 (2025)
Publisher : Universitas Swadaya Gunung Jati.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/e.v12i1.9726

Abstract

Self-regulated learning (SLR) is one of the important things in students' education and self-development. However, based on previous researchers, students' SLR abilities are still quite low. Thus, the purpose of this research is to develop mathematics learning media based on Malangan cultural ethnomathematics to support SLR for junior high school students. The research procedure uses the ADDIE development model. The results of the study obtained Etno-Pro media on valid ratio and proportion material with an average media validity of 3.15 and an average material validity of 3.18. The practicality test results through teacher and student response questionnaires obtained an average of 3.7 with high practicality criteria. As many as 90.9% of students got a complete score with an average student test score of 87.4. The results also that there was an increase in students' SLR skills. This shows that Etno-Pro media can support students' SLR.
Pelatihan Pembuatan dan Media Pembelajaran Ular Tangga Matematika LOGIKA pada Komunitas GEMAPEDIA Rizkyta, Nadia Amalia; Zirhannudin , Muhammad; Tashfiatul Fuadah, Nila; Dwi Jayanti, Mei; Windayu Ustantik, Julita; Kusumasari, Vita
ABDINE: Jurnal Pengabdian Masyarakat Vol. 4 No. 2 (2024): ABDINE : Jurnal Pengabdian Masyarakat
Publisher : Institut Teknologi dan Bisnis Riau Pesisir

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52072/abdine.v4i2.950

Abstract

Minat belajar matematika merupakan hal yang penting, namun sebagian besar siswa memiliki minat belajar yang rendah. Media pembelajaran yang monoton dan tidak interaktif saat digunakan dikelas menyebabkan penurunan mutu penmbelajaran Kegiatan pengabdian ini bertujuan untuk meningkatkan keterampilan anggota komunitas GEMAPEDIA dalam membuat, mengembangkan, dan mengimplementasikan media pembelajaran inovatif berbasis permainan ular tangga yang disebut LOGIKA. LOGIKA merupakan akronim dari Latihan Otak dan Gerakan Aktif Ular Tangga yang termasuk dalam perkembangan inovasi dari permainan klasik ular tangga yang dapat dipergunakan dalam media pembelajaran. Metode yang digunakan adalah Identifikasi kebutuhan mitra, Pelatihan pembuatan media ajar matematika LOGIKA berbasis games ular tangga,  Pendampingan pembuatan serta implementasi LOGIKA sebagai media ajar matematika,  Pelaporan kegiatan dan evaluasi pasca kegiatan. Pengabdian ini dilaksanakan pada tanggal 24 Maret 2024 secara daring melalui platform zoom dengan melibatkan 83 peserta dari komunitas GEMAPEDIA. Hasil dari workshop ini adalah 15 desain media ular tangga terbaik yang siap dicetak dan digunakan dalam kegiatan pembelajaran. Sedangkan dari peserta workshop sendiri terlihat puas dan antusias terhadap materi dan fasilitas yang diberikan. Hasil pengimplementasian media di SMP Brawijaya Smart School Malang juga membuktikan bahwa media LOGIKA mampu meningkatkan minat belajar matematika siswa.
STRATEGI KONTROL OPTIMAL PADA SISTEM DINAMIK PEROKOK Asmianto Asmianto; Kridha Pusawidjayanti; Vita Kusumasari
MATHunesa: Jurnal Ilmiah Matematika Vol. 12 No. 01 (2024)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/mathunesa.v12n1.p121-126

Abstract

This study aimed to investigate optimal strategies in dynamic models of smoking. The smoking dynamic model is divided into 3 subpopulations including potential smokers (non-smokers), active smokers who smoke daily, and people who have quit smoking permanently. There are five variables of the smoking dynamic model control strategy, including education related to the dangers of smoking for health, vaccination, tobacco taxation, treatment, and rehabilitation. In solving optimization problems, this study uses the Maximum Pontryagin Principle method. Furthermore, the 4th-order runge kutta method was used to implement numerical solutions and Matlab Software to simulate a control model of smoking dynamics. Based on the simulation results, it can be seen that the control provided is effective in reducing the number of smokers and increasing the number of people who quit smoking.
Co-Authors A'yun, Rhoro Qurota Akio Kitagawa Aldiansyah, Ardi Anggita Retno Kristanti Annisa, Fitri Arief Darmawan Asmianto Asmianto Azizurrahman Rafli Budiarti, Mayta Cholis Sa’dijah Defri Ahmad Desi Rahmadani Dina Pratiwi, Dina Dwi Fadila Kurniawan Dwi Jayanti, Mei Dwi Roudhotillah Erry Hidayanto Esti Untari Giyanatta, Adinda Evelyn Hadi Suyono Hadi Suyono HAFIIZH, MOCHAMMAD Hanik Hanik Henik Nur Khofiyah Imam Supeno Khikmatus Shahrin Maghfiroh Khoirunnisya, Melati Kridha Pusawidjayanti Lathiful Anwar Latifah Mustofa Lestyanto M. Nashihul Mukminin Mahardika, Candra Mahmuddin Yunus Makbul Muksar Muhammad Alfan Muhammad Fauzan Edy Purnomo Muhammad Fauzan Edy Purnomo Mutina, Mutina Nanang Hadi Hariyanto Niswatul Lutfiana Nurul Faridhatul Aini Purwanto Purwanto Putra, Muh. Hidayatullah Dwi Qohar, Abd. Rahmadani, Desi Rahmadwati Rahmadwati Rakhmad Romadhoni Rini Nur Hasanah Rini Nur Hasanah Rizkyta, Nadia Amalia Rudy Yuwono Rusmi Ambarwati Saiful Anwar Sigit Kusmaryanto Sudirman Sudirman Sukoriyanto Supriana, Edi Suteja, Maura Caesarani Tashfiatul Fuadah, Nila Tjang Daniel Chandra Wahyu Lukita Mubarokah Wahyuningtyas, Daniar Windayu Ustantik, Julita Wulandari, Monika Retno Yuyu Wahyu Zirhannudin , Muhammad