Article Per Year (5 Year)
p-Index From 2021 - 2026
2.177
P-Index
This Author published in this journals
All Journal Journal of Education and Instruction (JOEAI) Martabe : Jurnal Pengabdian Kepada Masyarakat Zero : Jurnal Sains, Matematika, dan Terapan Jurnal Lentera Pendidikan Pusat Penelitian LPPM UM Metro de Fermat : Jurnal Pendidikan Matematika Dharmas Education Journal (DE_Journal) Jurnal Kajian Ilmu Pendidikan (JKIP) JURNAL CURERE Innovative: Journal Of Social Science Research
Hutauruk, Agusmanto
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Computer Science & IT Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
Analisis Kemampuan Self-Efficacy Siswa pada Pembelajaran Kooperatif Tipe Jigsaw Purba, Tuty Novelindah; Sihombing, Susi; Silalahi, Lulu; Sinaga, Wita; Marpaung, Riko; Panjaitan, Simon; Hutauruk, Agusmanto
JOEAI (Journal of Education and Instruction) Vol. 4 No. 2 (2021): JOEAI (Journal of Education and Instruction)
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/joeai.v4i2.2832

Abstract

This study aims to analyze the ability of self-efficacy using the jigsaw cooperative model, including (1) student self-efficacy after jigsaw cooperative learning and (2) the level of active student activity during the learning process. This research is a qualitative descriptive study. The subjects in this study were 34 students of X-IPA2 N 1 PAGARAN and the object of this research was the students' self-efficacy abilities and active student activities. The instrument used consisted of a self-efficacy questionnaire, student activity observation sheets, and interview guidelines. Data analysis used the Mile and Huberman model. The results showed that the self-efficacy of 34 students obtained high self-efficacy of 26.47%, moderate self-efficacy of 61.76% and low self-efficacy of 11.76%. Overall self-efficacy of students is 73.31 in the medium category. Conclusions, based on the data obtained, students' thinking processes on abilities; 1) The self-efficacy of SMA N 1 PAGARAN students after jigsaw type cooperative learning is good; 2) The overall percentage of active student activities used during teaching and learning activities is within the specified ideal time tolerance interval. Keywords: active student activity, ability, jigsaw cooperative type, self-efficacy
Pengaruh Pendekatan Realistic Mathematics Education (RME) Berbantuan GeoGebra Terhadap Kemampuan Penalaran Matematika Siswa Pada Materi Statistika Kelas X SMKN 6 Medan T.A 2025/2026 Simanullang, Dinda Saktiana; Hutauruk, Agusmanto; Sinaga, Samuel Juliardi
De Fermat : Jurnal Pendidikan Matematika Vol. 9 No. 1 (2026)
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36277/defermat.v9i1.2508

Abstract

This study aims to determine the effect of the Realistic Mathematics Education (RME) approach assisted by GeoGebra on students' mathematical reasoning skills in statistics material in class X at SMKN 6 Medan. The research employed a quasi-experimental method, with a population consisting of all grade X students divided into 8 classes. The sample was selected using cluster random sampling, resulting in class X MPLB 1 as the experimental group and class X TKKR 2 as the control group. Data were collected using a mathematical reasoning skills test. Data analysis using normality, homogeneity, and t-tests showed a significant difference between the post-test scores of mathematical reasoning skills in the two classes, with a significance value (2-tailed) of 0.001 < 0.05. The average post-test score of the experimental class reached 53.50, while the control class was 45.50, indicating that the mathematical reasoning skills of students taught with the RME approach assisted by GeoGebra were higher than those taught with conventional learning. Based on the Effect Size (Cohen's d) calculation, a value of 0.633 was obtained, which means that the use of the Realistic Mathematics Education (RME) approach assisted by GeoGebra provides a contribution or effect in the medium category to students' mathematical reasoning skills.
Pengaruh Pembelajaran Etnomatematika Permainan Marsitekka Terhadap Pemahaman Konsep Matematika Siswa Pada Materi Transformasi Geometri Kelas XI SMK Negeri 6 Medan T.A 2025/2026 Manurung, Septa Yesika; Hutauruk, Agusmanto; Sinaga, Samuel Juliardi
De Fermat : Jurnal Pendidikan Matematika Vol. 9 No. 1 (2026)
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36277/defermat.v9i1.2509

Abstract

This study aims to determine the effect of ethnomathematics-based learning using the Marsitekka game on students’ mathematical conceptual understanding in geometry transformation material for Grade XI students at SMK Negeri 6 Medan. This research employed a quasi-experimental method with a population consisting of all Grade XI MPLB students, comprising three classes. The sample was determined through cluster random sampling, resulting in class XI MPLB 3 as the experimental class and class XI MPLB 1 as the control class. Data were collected using a conceptual understanding test. Data analysis included normality, homogeneity test, and t-test showed a difference in posttest scores of conceptual understanding between the two classes, with a significance value (Sig. 2-tailed) of 0,023, which is less than 0,05 at a 5% significance level. The average posttest score of the experimental class was 66.93, while the control class was 60,10, indicating that students’ mathematical conceptual understanding was in the good category. Based on the calculation of Effect Size (Cohen’s d), the value obtained was 0,603, which indicates that ethnomathematics learning through the Marsitekka game has a moderate effect on students’ mathematical conceptual understanding
Co-Authors Adi Suarman Situmorang, Adi Suarman Br Simarmata, Jesika Jelita Putri Christina Sitepu Giawa, Yulina Gultom, Sanggam Guth, David Havrlik, Matous Hutagaol, Diana Kristina Ismail Husein, Ismail Jina, Dusan Křivánková, Lenka Lena Rosdiana Pangaribuan Lumban Batu, Siti Sadar Sulastri Maděra, Martin Malau, Dewi Sartika Br. Manik, Efron Manurung, Grace Manurung, Septa Yesika Marpaung, Riko Mrazek, David Pangaribuan, Feri Pangaribuan, Feri H. Pangaribuan, Lena Panjaitan, Simon Purba, Tuty Novelindah Ritonga, Roy Ricardo sihombing, dame ifa Sihombing, Susi Silalahi, Lulu Simanjunta, Ruth M. Simanjuntak, Ruth M. Simanullang, Dinda Saktiana Simatupang, Aptry Cristina Sinaga, Cahyana Hotmauli sinaga, samuel juliardi Sinaga, Wita Tomasov, Jan Tutiarny Naibaho Zagoto, Lidwina Shinta