Abstract:The purpose of this community service is to provide a solution in the form of training and assistance to teachers and students in using the tool display. Widiatmika Middle School is a private school with its address on Jalan…
alan Raya Udayana Campus, Pondok Taman Nusantara No.01, Jimbaran. From the results of interviews with partners, it was found that the school was still limited in using visual aids, especially in learning mathematics. The use of this teaching aid in learning is very important in supporting learning process. Visual aids that are utilized optimally can provide better and systematic learning, directly or indirectly, and can provide convenience for the teaching and learning process in schools. Community service activities in the form of training on the use of circle props at Widiatmika Middle School have been running smoothly. This one-day activity has been carried out offline. The enthusiasm of the lecturers and students in providing assistance as well as the enthusiasm of the training teachers and students made this activity run smoothly
Keywords: learning; teaching aids; mathematics
Abstrak: Tujuan pengabdian masyarakat ini yaitu memberikan solusi berupa
pelatihan serta pendampingan kepada guru dan siswa-siswi dalam menggunakan alat peraga. SMP Widiatmika merupakan sekolah swasta beralamat di Jalan Raya Kampus Udayana, Pondok Taman Nusantara No.01, Jimbaran. Dari hasil wawancara dengan mitra diperoleh permasalahan bahwa pihak sekolah masih terbatas dalam memanfaatkan alat peraga khususnya dalam pembelajaran matematika. Penggunaan alat peraga ini dalam pembelajaran sangat penting dalam menunjang proses pembelajaran. Alat peraga yang dimanfaatkan secara maksimal dapat memberikan pembelajaran yang lebih baik dan sistematis, secara langsung atau tidak langsung, serta dapat memberikan kemudahan bagi proses belajar mengajar di sekolah. Kegiatan pengabdian masyarakat berupa pelatihan pemanfaatan alat peraga lingkaran di SMP Widiatmika telah berjalan lancar. Kegiatan yang berlangsung selama satu hari ini telah dilaksanakan secara luring. Semangat para dosen dan mahasiswa dalam melakukan pendampingan begitu juga dengan antusias guru dan siswa pelatihan membuat kegiatan ini dapat berjalan dengan lancar.
Kata kunci: alat peraga, pembelajaran; matematika
Abstract:Abstract: The low HOTS (Higher Order Thinking Skills) students based on the results of PISA 2015 in mathematics shows the characteristics of mathematics learning are still familiar with Lower Order Thinking Skills (LOTS)…
questions. Based on this, HOTS math problems need to be developed at the Vocational high school education level. The difficulty of the teacher in applying HOTS questions is due to the lack of information obtained by the teacher and the lack of sharing activities to compile HOTS questions. The purpose of this community service activity is to provide training for vocational mathematics teachers in making HOTS questions. This community service activity is in the form of training for Mathematics Teachers of Denpasar Development Vocational School and involving all teachers of mathematics subjects. The partner in this dedication activity named I Made Surya Mega Widiastha, S.Pd is one of the mathematics teachers at the Denpasar Development Vocational School. The implementation of community service activities is carried out through three stages, namely planning, implementation, and reflection. Based on the results of the questionnaire given to the partners and to the school, the results of the service have been able to run well.
Keywords: Dedication, Mathematics, Training, Hots
Abstrak: Rendahnya HOTS (Higher Order Thinking Skills) siswa berdasarkan hasil PISA 2015 dalam matematika menunjukkan karakteristik pembelajaran matematika masih terbiasa dengan soal-soal Lower Order Thinking Skills (LOTS). Berdasarkan hal tersebut, perlu dikembangkan soal matematika HOTS di jenjang pendidikan sekolah menengah Kejuruan. Kesulitan guru dalam menerapkan soal-soal HOTS dikarenakan kurangnya informasi yang diperoleh guru serta minimnya kegiatan sharing untuk menyusun soal HOTS. Tujuan kegiatan pengabdian masyarakat ini untuk memberikan pelatihan bagi guru matematika SMK dalam membuat soal-soal HOTS. Kegiatan pengabdian masyarakat ini berupa pelatihan kepada guru matematika SMK Pembangunan Denpasar dan melibatkan semua guru mata pelajaran matematika. Mitra pada kegiatan pengabdian ini bernama I Made Surya Mega Widiastha, S.Pd merupakan salah satu guru matematika di SMK Pembangunan Denpasar. Pelaksanaan kegiatan pengabdian masyarakat ini dilakukan melalui tiga tahapan, yaitu perencanaan, implementasi, dan refleksi. Berdasarkan hasil kuisioner yang diberikan kepada pihak mitra maupun ke pihak sekolah diperoleh hasil pengabdian sudah dapat berjalan dengan baik.
Kata kunci: Pengabdian, Matematika, Pelatihan, Hots
Abstract:Abstract: Many ways taken by the government to realize the human resources of Indonesia with intellectual ability that can compete with the region even with other countries, one of them with a Mathematics Olympiad held both…
oth elementary / MI, SMP / MTs., SMA / SMK / MA even the level of Students . But sometimes those who can enjoy the Olympics are only certain schools. This is due to the lack of socialization conducted by the government regarding such activities as well as the factor of the school itself which still has a sense of inferior to compete with other schools. The purpose of this training activity is to improve the ability of students to solve Mathematics Olympic questions. The implementation of this activity was carried out at SMAN 2 Tanjung Balai, with the method of providing training and training strategies prepared by the writing team. the results of the training, that students are very enthusiastic in discussing Mathematical Olympiad problems with the tricks provided and they can easily answer the questions given without the constraints which means are expected to produce new seeds from the winners of the Mathematics Olympiad.
Keywords: Training, Problem Prediction, Mathematics Olympiad.
Abstrak: Banyak cara yang ditempuh oleh pemerintah untuk mewujudkan sumber daya manusia Indonesia dengan kemampuan intelektual yang dapat bersaing dengan daerah bahkan dengan Negara lain, salah satunya dengan diadakan Olimpiade Matematika baik tingkat SD/MI, SMP/MTs., SMA/SMK/MA bahkan tingkat Mahasiswa. Namun terkadang yang bisa menikmati kegiatan olimpiade tersebut hanyalah sekolah-sekolah tertentu saja. Hal tersebut disebabkan masih kurangmya sosialisasi yang dilakukan pemerintah mengenai kegiatan tersebut serta faktor dari sekolah itu sendiri yang masih memiliki rasa minder untuk bersaing dengan sekolah-sekolah lain. Tujuan dalam kegiatan pelatihan ini adalah untuk meningkatkan kemampuan peserta didik dalam menyelesaikan soal-soal Olimpiade Matematika. Penyelenggaraan kegiatan ini dilaksanakan di SMAN 2 Tanjung Balai, dengan metode memberikan pelatihan dan strategi pelatihan yang sudah disiapkan oleh tim penulis. hasil pelatihan tersebut, bahwa siswa sangat antusias dalam membahas soal-soal Olimpiade Matematika dengan trik yang diberikan dan mereka pun dapat dengan mudah menjawab soal-soal yang diberikan tanpa kendala yang berarti diharapkan mampu menghasilkan bibit-bibit baru dari pemenang Olimpiade Matematika.
Kata Kunci : Pelatihan, Prediksi Soal, Olimpiade Matematika.
Abstract:This study focuses on the development of an Augmented Reality (AR)–based learning application designed to assist students in understanding the mathematical concepts of volume and surface area of three-dimensional geometric…
tric shapes. The development process adopted the Multimedia Development Life Cycle (MDLC) model, which consists of six systematic stages: concept, design, material collecting, assembly, testing, and distribution. The research concentrated on the development and expert validation stages. Validation results from content and media experts indicate that the application meets pedagogical and technical feasibility standards. The content expert confirmed that the materials align with the national mathematics curriculum and are presented in a clear, contextual, and accurate manner, while the media expert highlighted the user-friendly interface, interactive features, and visual appeal of
the application. Theoretically, this AR-based medium bridges the gap between abstract mathematical concepts and concrete visualization by enabling students to interact directly with
virtual 3D objects. Practically, the application enhances learning motivation and engagement by providing dynamic, interactive experiences. Overall, this research contributes to the
advancement of educational technology by offering a systematic model for developing AR-based learning media that support active and meaningful learning in the digital
era.
Abstract:Abstract: This research is motivated by the problem of building material inventory management at Jaqfar Building Store, which is still done manually and based on subjective estimates. This often results in inaccuracies in…
n determining stock levels, either in the form of overstock or understock, which hinders operational effectiveness. The purpose of this study is to apply the Multiple Linear Regression method to analyze the relationship between incoming stock (X1) and outgoing stock (X2) variables with the ending stock variable (Y) to produce an optimal inventory prediction model. The research methodology used includes collecting historical transaction data for building materials such as cement, ceramics, zinc, plywood, and iron. This web-based prediction system was developed using the PHP programming language and a MySQL database. The analysis results show that the resulting regression model can provide a mathematical picture of future inventory patterns based on historical data. Implementation of this system is expected to assist the management of Jaqfar Building Materials Store in making strategic decisions regarding purchasing and sales in a more measured and efficient manner.
Keyword: building materials; data mining; inventory; multiple linear regression
Abstrak: Penelitian ini dilatarbelakangi oleh permasalahan pengelolaan persediaan bahan bangunan di Toko Bangunan Jaqfar yang masih dilakukan secara manual dan berdasarkan perkiraan subjektif. Hal ini menyebabkan sering terjadinya ketidaktepatan dalam menentukan jumlah stok, baik berupa kelebihan barang (overstock) maupun kekurangan barang (understock) yang menghambat efektivitas operasional. Tujuan dari penelitian ini adalah menerapkan metode Multiple Linear Regression (Regresi Linear Berganda) untuk menganalisis hubungan antara variabel stok masuk (X1) dan stok keluar (X2) terhadap variabel stok akhir (Y) guna menghasilkan model prediksi persediaan yang optimal. Metodologi penelitian yang digunakan mencakup pengumpulan data historis transaksi bahan bangunan seperti semen, keramik, seng, triplek, dan besi. Sistem prediksi ini dikembangkan berbasis web menggunakan bahasa pemrograman PHP dan basis data MySQL. Hasil analisis menunjukkan bahwa model regresi yang dihasilkan mampu memberikan gambaran matematis mengenai pola persediaan di masa mendatang berdasarkan data historis. Implementasi sistem ini diharapkan dapat membantu manajemen Toko Bangunan Jaqfar dalam mengambil keputusan strategis terkait pembelian dan penjualan secara lebih terukur serta efisien.
Kata kunci: bahan bangunan; data mining; persediaan; regresi linear berganda
Abstract:Abstract: Mental health is an essential aspect of overall well-being, particularly for university students vulnerable to emotional strain. This study aims to identify clusters of student mental health trends using the K-Means…
Means clustering technique. The research involved 60 students from four academic programs at the Faculty of Science and Technology, selected using stratified and cluster sampling techniques. Data were collected using a modified Mental Health Inventory (MHI). The results revealed distinct commonalities among majors: the Statistics program was predominantly defined by the depressed cluster at 53.3%, while Mathematics followed at 40% within the same cluster. In contrast, Biology students predominantly fell under the neu-tral/stable cluster (66.7%), whilst Information Systems students exhibited an even distribution (33.3% per cluster) without a dominant trend. The clustering quality was evaluated using the Silhouette Coefficient, yielding a range of 0.39 to 0.60. Biology (0.60) and Statistics (0.54) exhibited a reasonable structure, but Information Systems (0.39) and Mathematics (0.34) demonstrated a deficient structure. In conclusion, K-Means effectively discerns mental health patterns, providing a data-driven basis for targeted psychological interventions in educational settings.
Keywords: biology; information systems; k-means; mathematics; mental health; silhouette coefficient; statistics
Abstrak: Kesehatan mental merupakan komponen vital dari kesejahteraan total, terutama bagi maha-siswa yang rentan terhadap stres emosional. Penelitian ini bertujuan untuk mengidentifikasi kelompok tren kesehatan mental mahasiswa melalui penerapan metode pengelompokan K-Means. Studi ini mencakup 60 mahasiswa dari empat program studi di Fakultas Sains dan Teknologi, yang dipilih melalui metode pengambilan sampel bertingkat dan kelompok. Data dikumpulkan dengan menggunakan Inventaris Kesehatan Mental (MHI) yang dimodifikasi. Temuan menunjukkan kesamaan yang jelas di antara jurusan: program studi Statistika terutama ditandai oleh kelompok depresi (53,3%), diikuti oleh Matematika dengan 40% dalam kelompok depresi. Sebaliknya, mahasiswa Biologi terutama termasuk dalam kelompok netral/stabil (66,7%), sedangkan mahasiswa Sistem Informasi memiliki distribusi yang merata (33,3% per kelompok) tanpa pola yang dominan. Kualitas pengelompokan dinilai dengan Koefisien Sil-houette, menghasilkan rentang 0,39 hingga 0,60. Biologi (0,60) dan Statistika (0,54) memiliki struktur sedang, sedangkan Sistem Informasi (0,39) dan Matematika (0,34) menunjukkan struktur yang buruk. Kesimpulannya, K-Means secara akurat mengidentifikasi tren kesehatan mental, menawarkan landasan berbasis data untuk terapi psikologis yang ditargetkan di ling-kungan pendidikan.
Kata kunci: biologi; kesehatan mental; K-Means; matematika; silhouette coefficient; sistem in-formasi; statistika
Abstract:Abstract: Higher education plays an essential role in improving human resource quality, one of which is through the institution’s ability to monitor and predict student graduation outcomes. This study does not focus on a…
a specific university but utilizes the publicly available Students Performance in Exams dataset from Kaggle, consisting of 1,000 student records containing mathematics, reading, and writing scores, along with demographic attributes such as gender, parental education level, lunch type, and test preparation participation. The data were processed through a feature engineering stage by adding an average score variable as an early indicator of graduation status. A predictive model was developed using the Random Forest Classifier, achieving an accuracy of 94.5%. The final model was integrated into a Streamlit-based web application to provide an accessible tool for academic stakeholders. The results indicate that the proposed model can serve as an effective decision-support tool for early evaluation of students’ likelihood of graduation.
Keywords: prediction; random forest classifier, streamlit, student graduation.
Abstrak: Pendidikan tinggi memegang peran penting dalam peningkatan kualitas sumber daya manusia, salah satunya melalui kemampuan institusi dalam memantau dan memprediksi tingkat kelulusan mahasiswa. Penelitian ini tidak berfokus pada perguruan tinggi tertentu, melainkan menggunakan dataset publik Students Performance in Exams dari Kaggle yang berisi 1.000 data mahasiswa, terdiri atas nilai matematika, membaca, menulis, serta atribut demografis seperti gender, tingkat pendidikan orang tua, jenis makan siang, dan partisipasi kursus persiapan. Data diolah melalui tahap feature engineering dengan menambahkan variabel average score sebagai indikator awal kelulusan. Model prediksi dibangun menggunakan algoritma Random Forest Classifier, yang menghasilkan tingkat akurasi sebesar 94,5%. Model ini kemudian diimplementasikan ke dalam aplikasi web berbasis Streamlit untuk memberikan layanan prediksi yang mudah diakses oleh pihak akademik. Hasil penelitian menunjukkan bahwa model mampu digunakan sebagai alat pendukung keputusan untuk melakukan evaluasi dini terhadap potensi kelulusan mahasiswa.
Kata kunci: kelulusan mahasiswa; prediksi; random forest classifier; streamlit.
Abstract:Abstract: The global transition towards sustainable food systems faces significant challenges in vegetarian food supply chains, including transparency issues, distribution inefficiencies, and quality verification problems.…
s. This research proposes VegeChain development, a decentralized marketplace ecosystem based on smart contracts designed to transform vegetarian food supply chains and accelerate Meatless, Balanced, Green (MBG) program adoption. Using mixed-method methodology integrating blockchain system design, stakeholder analysis, and economic simulation, this research develops a comprehensive technology framework combining blockchain transparency, smart contract automation, and sustainable tokenomics with novel mathematical models. The system implements dynamic pricing algorithms based on Automated Market Maker (AMM) mechanisms, multi-objective optimization for supply chain efficiency, and reputation-based consensus protocols. Simulation results demonstrate that VegeChain implementation can improve supply chain efficiency by 35%, reduce food waste by 28%, and increase consumer trust by 42% measured through validated stakeholder satisfaction surveys (n=456) using 5-point Likert scales with statistical significance p<0.001. Technical innovations include Byzantine Fault Tolerant consensus with 99.9% reliability, gas optimization achieving 67% cost reduction, and real-time quality verification algorithms with 98.7% accuracy.
Keywords: smart contracts; supply chain optimization; automated market makers; blockchain technology; sustainable tokenomics
Abstract:Abstract: Hypertension is one of the chronic diseases that can increase the risk of cardiovascular disease. A healthy diet is an important factor in managing hypertension, but many patients struggle to choose foods that…
are suitable for their condition. Therefore, a decision support system is needed to help patients determine healthy food choices objectively and systematically. This research aims to apply the ELECTRE (Elimination Et Choix Traduisant La Réalité) method in determining healthy foods for hypertension patients. This method is used because it can handle various criteria simultaneously and provide recommendations based on a mathematical approach. Data were obtained from Serozha Clinic through interviews, observations, and literature reviews on the nutritional content of food. The research results show that the ELECTRE method is capable of providing healthy food recommendations with an accuracy level of 90%, higher than the manual technique which only reaches 70%. In addition, the time required in the decision-making process has significantly decreased. Patients also showed a higher level of satisfaction with the proposed system. In conclusion, the ELECTRE method has proven effective in helping hypertension patients choose foods that meet their nutritional needs, and can thus be used as a reference in the development of decision support systems in the health sector.
Keywords: electre method; healthy food; health management; hypertension.
Abstrak: Hipertensi merupakan salah satu penyakit kronis yang dapat meningkatkan risiko penyakit kardiovaskular. Pola makan yang sehat menjadi faktor penting dalam pengelolaan hipertensi, namun banyak pasien kesulitan dalam memilih makanan yang sesuai dengan kondisi mereka. Oleh karena itu, diperlukan sistem pendukung keputusan yang dapat membantu pasien dalam menentukan pilihan makanan sehat secara objektif dan sistematis. Penelitian ini bertujuan untuk menerapkan metode ELECTRE (Elimination Et Choix Traduisant La Realite) dalam menentukan makanan sehat bagi penderita hipertensi. Metode ini digunakan karena mampu menangani berbagai kriteria secara simultan dan memberikan rekomendasi berdasarkan pendekatan matematis. Data diperoleh dari Klinik Serozha melalui wawancara, observasi, serta tinjauan literatur mengenai kandungan gizi makanan.Hasil penelitian menunjukkan bahwa metode ELECTRE mampu memberikan rekomendasi makanan sehat dengan tingkat akurasi 90%, lebih tinggi dibandingkan teknik manual yang hanya mencapai 70%. Selain itu, waktu yang dibutuhkan dalam proses pengambilan keputusan berkurang secara signifikan. Pasien juga menunjukkan tingkat kepuasan yang lebih tinggi terhadap sistem yang diusulkan.Kesimpulannya, metode ELECTRE terbukti efektif dalam membantu penderita hipertensi memilih makanan yang sesuai dengan kebutuhan gizi mereka, sehingga dapat digunakan sebagai referensi dalam pengembangan sistem pendukung keputusan di bidang kesehatan.
Kata kunci: hipertensi; makanan sehat; metode electre; pengelolaan kesehatan.
Abstract:Abstract: Problems that often occur in people with the growth and development of urban areas that change very quickly cause the movement of people or road users to become chaotic as in the Municipality of Medan. People in…
n carrying out their daily activities are directly influenced by irregular patterns of human movement, in this case what is meant is an increase in congestion, delays, and others. Therefore we need a system that can make it easier for humans to use road facilities, namely a geographic information system to determine the shortest path using the djikstra method and spanning cycle using graphs as a branch of mathematics and computer science. This research activity plan is carried out in the Medan city area using spatial image data from the Medan city map, spatial data based on google maps, and attribute data. a branch of mathematics and computer science. This research activity plan is carried out in the Medan city area using spatial image data from the Medan city map and spatial data based on google maps. The final result of the research that is expected is that the results of the comparison of the two algorithms are obtained according to the spatial data used, and the results of the research will be published in an accredited national journal article with sinta 4 or better.
Keywords: comparative of djikstra and spanning cycle method; shortest path; spatial data
Abstrak: Permasalahan yang sering terjadi pada masyarakat dengan pertumbuhan dan perkembangan kawasan perkotaan yang berubah sangat cepat menyebabkan pergerakan masyarakat atau pengguna jalan menjadi semrawut seperti di Kotamadya Medan. Masyarakat dalam melakukan aktivitasnya sehari-hari secara langsung dipengaruhi oleh pola pergerakan manusia yang tidak teratur, dalam hal ini yang dimaksud adalah peningkatan kemacetan, keterlambatan, dan lain-lain. Oleh karena itu diperlukan suatu sistem yang dapat mempermudah manusia dalam menggunakan fasilitas jalan yaitu sistem informasi geografis untuk menentukan jalur terpendek dengan menggunakan metode djikstra dan spanning cycle menggunakan graf sebagai cabang dari matematika dan ilmu komputer. Rencana kegiatan penelitian ini dilakukan di wilayah kota Medan dengan menggunakan data citra spasial dari peta kota Medan, data spasial berbasis google maps, dan data atttributnya. Hasil akhir dari penelitian yang diharapkan adalah diperoleh hasil perbandingan kedua algoritma sesuai dengan data spasial yang digunakan, dan luaran hasil penelitian akan dipublish pada artikel jurnal nasional terakreditasi sinta 4 atau yang lebih baik.
Kata kunci: data spasial ; jalur terpendek;perbandingan metode djikstra dan spanning cycle