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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) Portal Riset dan Inovasi Sistem Perangkat Lunak 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 Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Mathematics Physics Social Sciences Other

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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.
The Influence of Job Performance, Social Security, and Employee Incentives on Employee Job Satisfaction Mathematical Multicollinearity Test Method Irawan, Dedi; Hendrikson R Panjaitan; Surya Wisada Dachi
PROCEEDING INTERNATIONAL BUSINESS AND ECONOMICS CONFERENCE (IBEC) Vol. 2 (2023): Regional Economics Development and Business Transformation in the Digital Era
Publisher : Sekolah Tinggi Ilmu Ekonomi Eka Prasetya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47663/ibec.v2i1.135

Abstract

This research aims to determine the significant influence of work performance, social security and employee incentives on employee job satisfaction. This research was carried out using quantitative research. The population in this research was 35 with 35 samples taken. The sampling technique in this research used a total sampling technique. This research used secondary data obtained from distributing questionnaires. Using the Multiple Regression Analysis method, using SPSS 22. Based on the results of the first hypothesis test, it is known that the significant value of work performance is 3.894 > 2.03951. The work performance variable has a significant influence on the employee job satisfaction variable. The second hypothesis shows that social security has a significant value of 0.477 < 2.03951, meaning that the social security variable has no significant influence on the employee job satisfaction variable. The third hypothesis shows that employee incentives are significant, namely 2.510 > 2.03951, meaning that the employee incentive variable has a significant influence on the employee job satisfaction variable. The fourth hypothesis shows a significant Fcount value of 20.093 which is compared to Ftable of 2.90 (20.093 > 2.90), meaning that the variables of work performance (X1), social security (X2) and employee incentives (X3) simultaneously have a significant influence. with employee job satisfaction variables
PELATIHAN DAN PENDAMPINGAN PEMBUATAN PERANCAH INTERAKTIF BERBASIS WEB DAN PENERAPANNYA DALAM MODEL CONTEXTUAL TEACHING AND LEARNING DI SMP MUHAMMADIYAH 01 MEDAN Azis, Zainal; Harahap, Tua Halomoan; Dachi, Surya Wisada
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 5, No 2 (2022): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v5i2.604-608

Abstract

The proposed partnership program is intended to solve two partner problems (SMP Muhammadiyah 01 Medan), namely: (1) lack of partner teacher skills in the design and implementation of online teaching where the learning structure is dominated by assignments, unavailability of scaffolding, and only a small part of the time. Meetings are used for explanations, and (2) teachers do not understand how to choose an appropriate learning model for the topic being taught. In the context of online learning, such difficulties will increase. The solutions offered to overcome the first problem are training in a web-based interactive scaffolding development workshop using Articulate Storyline 3 software, an online class development workshop using Google Classroom, and an online teaching design workshop including learning tools. The solution offered to overcome the second problem is assistance in applying web-based interactive scaffolding in the CTL model. The program implementation method refers to the Learn-Teach-Evaluate-Acknowledge method proposed by Buckenmeyer et al. (2013), which has been modified and agreed upon by the Proposing Team and partners to resolve specific problems faced by partners. The modifications made are: (1) Adding a Fostering phase (coaching) for the sustainability of activities; and (2) the adjustment of each phase to the principles of adult learning, as proposed by Alamdari et al. (2017), which focuses on experiential learning and self-motivation to encourage participants and instructors to participate actively.
Sistem Pendukung Keputusan Composite Performance Index (CPI) Dalam Menentukan Kenaikan Golongan Karyawan Sari, Indah Purnama; Dachi, Surya Wisada; Harahap, Tua Halomoan
Portal Riset dan Inovasi Sistem Perangkat Lunak Vol. 2 No. 2 (2024): Artikel Penelitian
Publisher : SoraTekno Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59696/prinsip.v2i2.74

Abstract

Peran sistem pendukung keputusan akan membantu pihak kepegawaian untuk mencapai tujuan dari penilaian kinerja karyawan seperti kenaikan golongan tanpa mengesampingkan parameter-parameter yang sudah ditentukan oleh pihak instansi terkait. Metode Composite Performance Index (CPI) adalah Indikator gabungan yang dapat digunakan untuk menentukan suatu penilaian atau peringkat dari berbagai alternatif (i) dengan berdasarkan beberapa kriteria (j). Hasil penelitian ini menunjukkan bahwa perhitungan nilai alternatif dan tabel index gabungan memperoleh hasil alternatif B3 memiliki nilai tertinggi dan mendapat ranking pertama serta mendapatkan kenaikan golongan paling tinggi yaitu dari 1A/4 menjadi 1B/0 pada periode 2019 dengan nilai 108,78.
PENDEKATAN OPEN ENDED DALAM PEMBELAJARAN MATEMATIKA UNTUK MENINGKATKAN MOTIVASI BELAJAR SISWA Dachi, Surya Wisada
Journal Mathematics Education Sigma [JMES] Vol 7, No 1 (2026): JOURNAL MATHEMATICS EDUCATION SIGMA (JMES)
Publisher : Journal Mathematics Education Sigma [JMES]

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jmes.v7i1.28967

Abstract

Penelitian ini bertujuan untuk mengetahui apakah pendekatan open ended dapat meningkatkan hasil belajar matematika siswa dan untuk mengetahui hasil belajar siswa dalam pembelajaran matematika bila pendekatan open ended diterapkan. Penelitian yang dilakukan dalam penelitian ini adalah penelitian tindakan kelas sedangkan instrumen penelitian yang dilakukan dalam rangka pengumpulan data adalah tes hasil belajar yang terdiri dari pretes dan postes serta observasi.Setelah data dianalisis, maka diketahui untuk meningkatkan hasil belajar siswa dengan menggunakan pendekatan open ended, Data yang diperoleh dari hasil belajar siswa sebelum pembelajaran dilakukan 9,375 % tetapi setelah dilakukan perbaikan dengan pembelajaran pada siklus I maka hasil belajar siswa meningkat menjadi 65,625 % karena hasil belajar belum seperti yang diharapkan maka dilakukan perbaikan proses belajar mengajar, maka hasil belajar meningkat dengan nilai rata-rata 87,5 % dengan 4 siswa yang tidak tuntas dalam pembelajaran dan selebihnya sudah tuntas.
Co-Authors 'Afifah, Nur Ahmad Riady Hasibuan Azis, Zainal Baehaqi 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