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All Journal Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL PENDIDIKAN TAMBUSAI Journal on Education Sang Pencerah: Jurnal Ilmiah Universitas Muhammadiyah Buton Jurnal Pendidikan dan Konseling Imajiner: Jurnal Matematika dan Pendidikan Matematika MES: Journal of Mathematics Education and Science Journal On Teacher Education (Jote) JURNAL PENDIDIKAN SAINS SOSIAL DAN AGAMA Dharmas Education Journal (DE_Journal) Tridharmadimas: Jurnal Pengabdian Kepada Masyarakat Jayakarta Indo-MathEdu Intellectuals Journal International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) International Journal of Humanities Education and Social Sciences Journal Of Human And Education (JAHE) Jurnal Pengabdian Masyarakat Bestari (JPMB) JURNAL PENELITIAN BIDANG PENDIDIKAN Mamangan Social Science Journal IKHLAS: Jurnal Pengabdian Dosen dan Mahasiswa Innovative: Journal Of Social Science Research JME
Adi Suarman Situmorang, Adi Suarman
Universitas HKBP Nommensen
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Pengaruh Penerapan Model Pembelajaran Kooperatif Aptitude Treatment Interaction (ATI) TERHADAP Peningkatan Kemampuan Pemahaman Konsep Matematis PADA Materi Pola Bilangan Kelas VIII SMPN 6 Tanjung Balai Zefanya Harianja, Claresia Corry; Sinaga, Samuel Juliardi; Situmorang, Adi Suarman
Innovative: Journal Of Social Science Research Vol. 3 No. 5 (2023): Innovative: Journal of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Aptitude Treatment Interaction (ATI) terhadap pemahaman konsep matematis peserta didik pada materi pola bilangan kelas VIII di SMP Negeri 6 Tanjung Balai. Jenis Penelitian ini adalah penelitian quasi experiment dengan populasi penelitian yaitu seluruh peserta didik kelas VIII SMP Negeri 6 Tanjung Balai, dengan menggunakan teknik Simple Random Sampling dan diperoleh sampel penelitian kelas eksperimen di kelas VIII-1 dan sampel penelitian kelas kontrol di kelas VIII-2. Setelah dilakukan penelitian, diperoleh nilai rata-rata post test di kelas eksperimen (Aptitude Treatment Interaction) adalah sebesar 80,13 dan rata-rata nilai post-test di kelas kontrol (konvensional) adalah sebesar 23,73. Dari hasil analisis data, hasil data pre-test dan post-test dalam kelas eksperimen dan salam kelas kontrol menyatakan sampel berdistribusi normal dan homogen. Dan kemudian hasil dari perhitungan N-Gain menunjukkan bahwa model pembelajaran Aptitude Treatment Interaction (ATI) berpengaruh dalam kemampuan pemahaman konsep matematis peserta didik. Pada hasil uji-t ditunjukan bahwa ada perbedaan yang signifikan model pembelajaran Aptitude Treatment Interaction (ATI) pada materi pola bilangan terhadap kemampuan pemahaman konsep matematis peserta didik kelas VIII SMP Negeri 6 Tanjung Balai.
MENGGIATKAN LITERASI MATEMATIKA DI SMP HKBP SIDORAME MEDAN BERSAMA MAHASISWA DARI REPUBLIK CEKO Sitepu, Christina; Panjaitan, Simon; Suarman Situmorang, Adi; Manik, Efron; Hutauruk, Agusmanto; Gultom, Sanggam; Pangaribuan, Lena; Pangaribuan, Feri; Manurung, Grace; Křivánková, Lenka; Jina, Dusan; Maděra, Martin; Havrlik, Matous; Tomasov, Jan; Guth, David; Mrazek, David
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 5, No 7 (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.v5i7.2666-2672

Abstract

Program Kerjasama dalam Pengabdian Kepada Masyarakat ini ditujukan agar dapat menggiatkan literasi matematika bagi siswa–siswi di SMP HKBP Sidorame Medan. Melakukan pendampingan pemberian informasi kepada siswa-siswi maupun guru-guru pentingnya menerapkan literasi sejak dini bagi siswa–siswi SMP mengingat rendahnya keinginan untuk membaca siswa–siswi saat sekarang ini, serta hal ini juga sangat bermanfaat untuk pengembangan pengetahuan di segala lapisan masyarakat. Program Kerjasama Pengabdian Masyarakat ini dilakukan oleh Dosen dan Mahasiswa dari Program Studi Pendidikan Matematika Fakultas Keguruan dan Ilmu Pendidikan Universitas HKBP Nommensen Medan dengan Mahasiswa dari Czech University. Program Kerjasama ini dilaksanakan pada tanggal 25 Juli 2022 serta berakhir pada tanggal 26 Juli 2022. Tradisi lisan yang masih sangat kuat, pendidikan sekolah yang sistemnya masih belum melakukan aktivitas–aktivitas yang maksimal untuk menggiatkan tradisi literasi matematika kepada siswa–siswinya, addicted–nya dengan pemakaian gadget akibat dari terjadinya pandemi covid-19, merupakan beberapa penyebab rendahnya literasi matematis pada siswa–siswi di Indonesia, dimana hal ini juga terjadi pada siswa-siswi di SMP HKBP Sidorame Medan. Dari beberapa masalah ini dicoba untuk melakukan kegiatan pengabdian masyarakat dengan aktivitas berbeda yang belum pernah dilakukan di sekolah tersebut yaitu dengan melibatkan pendampingan beberapa mahasiswa dari Czech University dengan harapan dapat menggugah siswa–siswi dalam meningkatkan keinginannya dalam melakukan literasi. Program Kerjasama ini menjadi salah satu aktivitas penting dalam peningkatan kegiatan literasi matematis di sekolah. Hal positif lain  adalah terdapatnya dalam jumlah yang cukup besar kelompok yang teridentifikasi minim literasi matematis, tidak hanya kelompok siswa-siswi, kelompok guru juga. Maka guru-guru juga harus membuat aktivitas kreatif yang membuat literasi matematis menjadi suatu budaya bagi siswa-siswinya.
The Effect Of Kahoot!-Assisted Interactive Learning On Students' Problem-Solving Abilities In Quadratificial Functions In Grade X Sormin, David Frendy; Sinaga, Rani; Situmorang, Adi Suarman
Jurnal Pendidikan, Sains Sosial, dan Agama Vol. 10 No. 1 (2024): Jurnal Pendidikan, Sains Sosial, dan Agama
Publisher : STABN RADEN WIJAYA WONOGIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53565/pssa.v10i1.2317

Abstract

This study aims to determine the effect of interactive learning assisted by kahoot! on the problem-solving ability of class X students in the quadratic function material at the Free Methodist Private High School Medan. This study uses a quasi-experimental method with probability sampling techniques, where class XA is designated as the experimental class and class XB as the control class. The research instrument used is a test. After calculations using the ????- test , the calculated t is 6.474. For α = 0.05 and df = 61-2 = 59 then t_0.05.59 = 2.95 then obtained t_table = 2.95 obtained t_count> t_table, which means reject H_0 and accept H_a. The results of data analysis show that the sig. (2-tailed) value is 0.000 <0.05 at a significance level of 5%, which means there is a significant difference between the experimental and control groups. The average problem-solving score of students in the experimental class was 83.806, while the control class obtained an average of 69.6. The results of the ???? - ???????????????? test showed that the average score of the experimental class was 0.72 (high category), while the control class obtained a score of 0.53 (medium category). The large influence of interactive learning assisted by Kahoot! on students' problem-solving abilities reached 70.1%. Therefore, it can be concluded that interactive learning assisted by Kahoot! has an effect on the problem-solving abilities of class X students of SMA Swasta Free Methodist Medan on the quadratic function material
APPLICATION OF THE ABC METHOD TO IMPROVE THE EFFECTIVENESS OF CONTROL OF DRUG INVENTORY FOR BPJS HEALTH PATIENTS Juli Antasari Br Sinaga; Gayus Simarmata; Adi Suarman Situmorang; Nilam Sari; Angelina Manik
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 1 No. 10 (2022): SEPTEMBER
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v1i10.1514

Abstract

This study aims to analyze drug inventory control at Kasih Clinic using the ABC method with the help of POM-QM software for Windows. Based on the Pareto principle, the results of data processing indicate that inventory items can be classified into three main groups based on the contribution of usage value to total inventory costs. Group A consists of five main drug items that contribute the most to inventory value, which is around 87.48%, despite the relatively small number of items. This group requires strict control because it has a significant financial impact. Group B includes two drug items with a cumulative contribution of usage value up to 97.55% and requires periodic monitoring with a medium priority level. Meanwhile, group C consists of most drug items but only contributes around 2.45% of the total usage value, so it can be managed with a simpler control system. Overall, the application of the ABC method has proven effective in identifying drug inventory control priorities objectively and based on economic value, thus supporting more efficient hospital inventory management decisions
Analisis Penilaian dan Evaluasi Capaian Hasil Belajar Matematika pada Materi Bangun Ruang dalam Implementasi Kurikulum Merdeka di SMA N 1 Girsang Sipangan Bolon Situmorang, Purnama Raya Anjelina; Togatorop, Fresty Handayani; Panggabean, Ellis Mardiana; Situmorang, Adi Suarman
Indo-MathEdu Intellectuals Journal Vol. 6 No. 8 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i8.4680

Abstract

This study aims to describe the implementation of assessment and evaluation of mathematics learning outcomes in spatial geometry material in the Merdeka Curriculum at SMA Negeri 1 Girsang Sipangan Bolon. The study used a descriptive qualitative approach with data collection through observation, interviews, and document analysis. The results of the study indicate that teachers have implemented formative assessment, practical assessment, and context-based assignments. However, authentic assessment has not been implemented consistently, and assessment instruments still tend to focus on students' procedural abilities, so that contextual abilities have not been optimally explored. The main obstacles in the implementation of assessment include limited learning time, the administrative burden on teachers, and teachers' skills in developing and using assessment rubrics. This study concludes that the implementation of assessment on spatial geometry material has been in line with the principles of the Merdeka Curriculum, but it still requires improvement in teacher competence and institutional support from the school so that assessment can be carried out more optimally.
Analisis Problematika dan Evaluasi Pelaksanaan Kurikulum dalam Pembelajaran Matematika di SMPS Deli Murni Bandar Baru Sihombing, Artha Hadia; Sitepu, Ribka Zelin Margaretha; Panggabean, Ellis Mardiana; Situmorang, Adi Suarman
Indo-MathEdu Intellectuals Journal Vol. 6 No. 8 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i8.4690

Abstract

This study aims to analyse the problems and evaluate the implementation of the curriculum in mathematics learning at Deli Murni Bandar Baru Junior High School. The research used a qualitative descriptive approach with mathematics teachers and related parties at the school as the research subjects. Data were collected through in-depth interviews, observation of the learning process in the classroom, and analysis of curriculum documents and teaching tools, such as teaching modules and assessment instruments. The data obtained were analysed using qualitative analysis techniques through the stages of data reduction, data presentation, and conclusion drawing. The results showed that the implementation of the curriculum was quite good in terms of planning, as demonstrated by the teachers' ability to develop teaching tools in accordance with the curriculum requirements. However, the implementation of learning and evaluation was not yet optimal. Teachers still tended to use conventional learning methods and had difficulty in implementing authentic assessment. These findings emphasised the need to improve teacher competence through continuous training so that the implementation of the curriculum could be carried out more effectively and have an impact on improving the quality of mathematics learning
Implementasi Understanding by Design (UbD) sebagai Kerangka Kerja Kurikulum Merdeka di SMA Santo Thomas 1 Medan Sihotang, Friska Ladista; Juraganda S, Chandra Saptanto; Panggabean, Ellis Mardiana; Situmorang, Adi Suarman
Indo-MathEdu Intellectuals Journal Vol. 6 No. 8 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i8.4691

Abstract

This study aims to describe the implementation of Understanding by Design (UbD) as a framework for the Merdeka Curriculum at Santo Thomas 1 High School in Medan. This study uses a descriptive approach with a mixed qualitative and quantitative design. Research data were collected through interviews with teachers, observations of teaching and learning activities, analysis of teaching materials, and measurement of teachers' perceptions using a Likert scale questionnaire. Qualitative data were analysed through data reduction, data presentation, and conclusion drawing, while quantitative data were analysed descriptively to determine the categories of UbD implementation levels. The results showed that UbD implementation was in the good category, especially in the planning and formulation of learning outcomes stages. However, the learning implementation and assessment stages still needed improvement because they were not fully consistent with the backward design principle. Overall, UbD played an important role in strengthening the quality of learning planning in the Merdeka Curriculum, but further assistance was still needed to optimise its application in all stages of learning.
Efektivitas Media Pembelajaran GeoGebra Terhadap Kemampuan Pemahaman Konsep dan Pemecahan Masalah Matematis Siswa Pada Materi Sistem Persamaan Linear Tiga Variabel Di Kelas X SMK Swasta Budi Setia Sunggal T.A 2025/2026 Nainggolan, Justri; Hutauruk, Agusmanto J.B; Situmorang, Adi Suarman
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 8, No 3 (2026): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v8i3.27495

Abstract

This study aims to determine the effectiveness of the GeoGebra learning medium on students’ conceptual understanding and mathematical problem-solving skills regarding the topic of systems of linear equations with three variables in the 10th grade at Budi Setia Private Vocational High School. This study employed a quantitative method using a quasi-experimental design in the form of a pretest-posttest-only control group design. The study population consisted of all Grade 10 students at Budi Setia Private Vocational High School, comprising 5 classes. The sample was determined using purposive sampling, resulting in Class X TKR as the experimental class (30 students) and Class X MP as the control class (30 students). The research instrument consisted of an essay test that had been validated for validity and reliability. Pre-test and post-test data were analyzed using normality tests, homogeneity tests, t-tests, N-Gain, and Effect Size. Calculations for the experimental class showed an average score of 77.80 for mathematical concept comprehension, while the control class had an average score of 68.07. Calculations for the experimental class showed an average score of 73.63 for mathematical problem-solving ability, while the control class had an average score of 66.73. Based on the t-test results, a significance value of 0.001 0.05 was obtained, so the null hypothesis was rejected. The GeoGebra learning tool was found to be effective because it was proven to significantly improve student learning outcomes, as evidenced by a comparison of average post-test scores between classes that used the tool and those that did not. In terms of mathematical concept comprehension, students in the experimental class taught using GeoGebra achieved an average score of 77.80, far surpassing the control class, which averaged only 68.07. This advantage was also consistently evident in the mathematical problem-solving ability indicator, where the experimental class recorded an average score of 73.63, while the control class lagged behind at 66.73. The conclusion of this study is that the GeoGebra learning medium is effective in enhancing students’ mathematical conceptual understanding and problem-solving abilities regarding the topic of systems of linear equations with three variables in Grade 10 at Budi Setia Private Vocational High School.
Co-Authors Agusmanto J.B Hutauruk Agusmanto J.B. Hutauruk Agusmato Hutauruk Angelina Manik Bangun Munthe Betti Rouli Manik Br Simarmata, Jesika Jelita Putri Br. Sipayung, Yuli Pambreni Christina Natalina Saragi Christina Sitepu Dahlia Fortuna Sinaga dame ifa sihombing Dapot Tua Manullang David Guth David Mrazek Desi Sonia Petlin Nainggolan Dusan Jina Eka Putri Saptari Wulan Ellis Mardiana Panggabean Enjelika Pandiangan Ester Dormauli Sihotang Feri Pangaribuan Friska B. Siahaan Friska B. Siahaan Friska B. Siahaan Gayus Simarmata Grace Manurung Gultom, Darma Indra Gultom, Sanggam Gultom, Sanggam P Guth, David Handoko Priono H.S Hardi Tambunan Havrlik, Matous Helen Sayora Sihotang Henny I. Sitanggang Hutasoit, Julinca Hutauruk, Agusmanto Hutauruk, Agusmanto J. B. Hutauruk, Agusmanto J.B Jan Tomasov JB. Hutauruk, Agusmanto Jina, Dusan Juli Antasari Br Sinaga Juraganda S, Chandra Saptanto KÅ™ivánková, Lenka Kristina M. Purba Lasmaria Pardede Lasminar Sihombing Lena Pangaribuan Lena Rosdiana Pangaribuan Lenka Křivánková Lestari Kasih Grasella Nahampun Limbong, Cici Limbong, Melinda G. MadÄ›ra, Martin Magdalena Siahaan Manik, Efron Manurung, Grace Martin Maděra Matous Havrlik Mei Jwita Silaen Mika Oktavia Purba Mrazek, David Nainggolan, Justri Nelly Karlina Nilam Sari Nissi Wuntari Sinaga Novita Dwi Yanti Gulo Pangaribuan, Feri Pangaribuan, Lena Pangaribuan, Lena R. Panjaitan, Simon Panjaitan, Simon M. Pasaribu, Yuni Virginia Angelika Purba, Maesy Romaito Purba, Putri Enzelina Rambe, Jeremi Sandi Rani Farida Sinaga Rita Yusreni Nainggolan Rizky M.N. Dalimunthe Ruth Mayasari Simanjuntak Sahlan Tampubolon Samuel Juliardi Sinaga Samuel Juliardi Sinaga Samuel Juliardi Sinaga Sanggam Gultom Sanggam P. Gultom Santa Miralda Lumbantobing Sarah Yulita Sauduran, Golda Novatrasio Siallagan, Nova Wati Sihombing, Artha Hadia sihombing, dame ifa Sihotang, Friska Ladista Silaban, Naomi Simamora, Romasi Patresia Simangunsong, Venny Herawati Simanjuntak, Nasri Simbolon, Lolyta Damora Simon M Panjaitan Simon M. Panjaitan Simon M. Panjaitan Simon M. Panjaitan Simon M. Panjaitan Simon Panjaitan sinaga, samuel juliardi Sirait, Romulus Siregar, Golda Novatrasio Sitepu, Ribka Zelin Margaretha Situmorang, Nengsi Syah Putri Situmorang, Purnama Raya Anjelina Sormin, David Frendy Suci Rahmadani Tambunan, Hardi Tiofanny, Tiofanny Togatorop, Fresty Handayani Tomasov, Jan Warni, Remia Yende Puji Yani Sihotang Yuni Juli Riani Purba Yurianti Yurianti Zefanya Harianja, Claresia Corry