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All Journal KUMPULAN JURNAL DOSEN UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA EDUTECH: Jurnal Ilmu Pendidikan dan Ilmu Sosial Martabe : Jurnal Pengabdian Kepada Masyarakat WIDYABHAKTI Jurnal Ilmiah Populer Journal on Education International Journal for Educational and Vocational Studies MES: Journal of Mathematics Education and Science Jurnal Absis : Jurnal Pendidikan Matematika dan Matematika Ihsan: Jurnal Pengabdian Masyarakat Journal Mathematics Education Sigma [JMES] Jurnal Manajemen Pendidikan Dasar, Menengah dan Tinggi [JMP-DMT] Kognitif: Jurnal Riset HOTS Pendidikan Matematika Jurnal MathEducation Nusantara JURNAL CURERE Aksaqila International Humanities and Social Sciences [AIHSS] Journal PROCEEDING INTERNATIONAL BUSINESS AND ECONOMICS CONFERENCE (IBEC) Al'Adzkiya International of Computer Science and Information Technology Journal
Surya Wisada Dachi
Universitas Muhammadiyah Sumatera Utara
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Mathematics Physics Social Sciences Other

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Design of Decision Support System for Selection of Outstanding Students Using AHP and Promethee Methods Dachi, Surya Wisada
Al'adzkiya International of Computer Science and Information Technology (AIoCSIT) Journal Vol 3, No 2 (2022)
Publisher : Al'Adzkiya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55311/aiocsit.v3i2.234

Abstract

Student affairs often has difficulty in determining students that are sent to events because of many outstanding students at the institution. So far, the sending of students is still intuitive and subjective. Therefore, this research aims to design and build a decision support system that can provide advice to determine the best student that will be sent to the event. In this research, the method of decision support system that is used is a combination of AHP and Promethee. In implementation, AHP is executed to get criteria weight. After that, Promethee is executed to determine the order of candidates priority. The purpose of combination is to increase the quality of advice about the selection of students. The result of research shows that with the decision support system that is built, student affairs can choose the students that are sent to events more quickly, accurately, and objectively. Gist-The student affairs department often has difficulty in determining outstanding students who will be sent to events due to the large number of outstanding students in the institution. Due to the absence of a decision support system, sending students so far is still intuitive and subjective. Therefore, this research aims to design and build a decision support system that can provide advice to determine the best students to be sent to the event. In this case, the decision support system method used is a combination of Analytical Hierarchy Process (AHP) and Promethee. In its application, AHP is run first to get the weight of the criteria. After that, Promethee is run to determine the priority order of prospective event participants. The purpose of this combination is to improve the quality of student selection advice. The results showed that with this decision support system, the student affairs department can select students who are sent to an event more quickly, precisely, and objectively.
The Development Teaching Materials Subject Class Calculus of Many Variable Based on Discovery Learning Model at Education Faculty University of Muhammadiyah Sumatera Utara Wahyuni, Sri; Bara, Ismail Hanif Batu; Dachi, Surya Wisada
International Journal for Educational and Vocational Studies Vol. 2 No. 2 (2020): February 2020
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v2i2.2137

Abstract

This study is applied research. It is focus in development materials teaching course of calculus many variable basic on discovery learning model. In this research used developing 4D (define, design, develop, and disseminate). Destination research is for determine how to validity from development materials teaching course of calculus many variable basic on discovery learning model, and how to effectiveness in development of teaching material courses of calculus many variable basic on discovery learning model. The result of the research is teaching material courses of calculus many variable on discovery learning model. The result of research materials teaching course validated by experts. Result of validity is calculated with average for each indicator. Therefore effectiveness its calculate with means of  student response to materials teaching course. In this research result that materials teaching course is valid. Therefore, student response result is 94.45%, it means the effectiveness of teaching material course is very good.
The Development of Learning Model Through Problem Based Introduction (PBI) on Students Motivation Improvement in Mathematics Education Dachi, Surya Wisada; Batubara, Ismail Hanif
International Journal for Educational and Vocational Studies Vol. 2 No. 2 (2020): February 2020
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v2i2.2284

Abstract

The formulations of the study conclude into two aspects, that are: (1) How effective problem-based introduction (PBI) model for mathematics education students' motivation FKIP UMSU; (2) Does the learning model through Problem-Based Introduction provides a significant improvement on students' motivation. The objectives of this study were: (1) To determine the effectiveness of the problem-based introduction (PBI) model on mathematics education students' motivation in FKIP UMSU, (2) To increase the motivation for mathematics education students to FKIP UMSU through a problem-based introduction (PBI) model. From the results of the research carried out by developing a learning device based on a problem-based introduction (PBI) model to improve the learning motivation of mathematics education students at FKIP UMSU. From the hypothesis calculation data obtained t count > t table is 4,803 > 2,005 so that Ho rejected and Ha is accepted.
PENGARUH MODEL PEMBELAJARAN PROBING PROMPTING TERHADAP HASIL BELAJAR SISWA Dachi, Surya Wisada; Harahap, Tua Halomoan
Journal Mathematics Education Sigma [JMES] Vol 6, No 2 (2025): JOURNAL MATHEMATICS EDUCATION SIGMA
Publisher : Journal Mathematics Education Sigma [JMES]

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jmes.v6i2.26193

Abstract

Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh model pembelajaran probing prompting. Jenis penelitian yang dilakukan adalah penelitian eksperimen semu dengan membandingkan tingkat hasil belajar matematika siswa sebelum menggunakan model pembelajaran Probing Prompting dengan tingkat hasil belajar matematika sesudah menggunakan model pembelajaran Probing Prompting. Instrumen penelitian ini adalah tes yang berbentuk essay. Dari hasil analisis diperoleh bahwa nilai rata-rata siswa yang diajarkan dengan menggunakan model pembelajaran Probing Prompting lebih tinggi dibandingkan nilai rata-rata siswa sebelum menggunakan model pembelajaran Probing Prompting yaitu 82,14 banding 72,74. Nilai tertinggi yang diperoleh siswa sebelum diajarkan dengan menggunakan model pembelajaran Probing Prompting adalah 90. Nilai tertinggi yang diperoleh siswa setelah diajarkan dengan model pembelajaran Probing Prompting adalah 100. Berdasarkan pengujian statistik dengan menggunakan uji t dapat disimpulkan bahwa ada pengaruh penggunaan model pembelajaran Probing Prompting dalam meningkatkan hasil belajar matematika siswa. Hal ini terlihat dari nilai Post Test yang lebih besar dibandingkan nilai Pre Test sebelum menggunakan model pembelajaran Probing Prompting
Enhancing mathematical competence through augmented reality: An exploratory study using best AR in geometry learning Dewi, Puspita; Harahap, Tua Halomoan; Dachi, Surya Wisada
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 8 No. 2 (2025): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v8i2.3253

Abstract

The integration of digital technology in mathematics education holds immense potential to transform abstract concepts into concrete experiences. This study explores the impact of an Augmented Reality (AR)-based learning application, Best AR, on enhancing the mathematical competence of fifth-grade students in Malaysia. Conducted in a tutoring center using an exploratory qualitative approach, the research investigates how the interactive features of Best AR—including 3D object simulations, mini-games, and quizzes—support conceptual understanding, engagement, and problem-solving skills, particularly in learning three-dimensional geometry. Data were collected through interviews, observations, and documentation, and analyzed thematically. The findings reveal that Best AR improved students' ability to visualize and manipulate geometric objects, fostered collaboration, increased motivation, and enhanced logical reasoning. The application’s mobile accessibility and adaptive feedback promoted self-regulated learning, while its gamified elements made mathematics more engaging and enjoyable. Despite challenges in device access and teacher preparedness, the study underscores the potential of AR to bridge gaps in technology integration and enrich mathematics instruction. Implications for curriculum alignment, teacher training, and scalable adoption of AR media in informal learning contexts are discussed.
Co-Authors 'Afifah, Nur Ahmad Riady Hasibuan Bara, Ismail Hanif Batu Dedi Irawan Elfira Handayani Handayani, Elfira Hasanuddin Hasanuddin Hasibuan, Khoirunnisa Hendrikson R Panjaitan Ida Karnasih Indah Purnama Sari Irvan, Irvan Ismail Hanif Batubara Lubis, Mindo Juliani Kelly Madyunus Salayan Manurung, Asrar Aspia Muhammad Alvis Syahril Maulana Nila Rizki Simamora Puspita Dewi, Puspita Putri Maisyarah Ammy Rahmat Mushlihuddin Rizki Aprina Nuranti Sihite, Tantri Sri Rezeki Sri Wahyuni Sri Wahyuni Tengku Aldy Hatta Tua Halomoan Harahap Tua Halomoan Harahap, Tua Halomoan Zainal Azis