Article Per Year (5 Year)
p-Index From 2021 - 2026
3.265
P-Index
This Author published in this journals
All Journal Edukasi Islami: Jurnal Pendidikan Islam Martabe : Jurnal Pengabdian Kepada Masyarakat Zero : Jurnal Sains, Matematika, dan Terapan Jurnal Basicedu Jurnal Review Pendidikan dan Pengajaran (JRPP) Imajiner: Jurnal Matematika dan Pendidikan Matematika SEPREN: Journal of Mathematics Education and Applied JURNAL PENDIDIKAN SAINS SOSIAL DAN AGAMA Jurnal Pengabdian Masyarakat Bestari (JPMB) JURNAL CURERE Jurnal Basicedu PIJAR: Jurnal Pendidikan dan Pengajaran IKHLAS: Jurnal Pengabdian Dosen dan Mahasiswa Innovative: Journal Of Social Science Research Jurnal KALANDRA International Journal of Research in Education (IJRE)
sihombing, dame ifa
Unknown Affiliation
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Civil Engineering, Building, Construction & Architecture 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 Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

Published : 22 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 22 Documents
Search

 1   2   3 
Efektivitas Pemanfaatan GeoGebra Dengan Tipe STAD Terhadap Pemahaman Konsep Matematis Siswa Pada Materi Matriks di Kelas XI SMA Negeri 14 Medan T.A 2025/2026 Pangaribuan, Gustin Magdalena; Sihombing, Dame Ifa; Naibaho, Tutiarny
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.v8i3.27494

Abstract

This study aims to examine the effectiveness of using GeoGebra based on the Student Teams Achievement Divisions (STAD) model in improving students’ understanding of mathematical concepts in the matrix curriculum for XI-grade students at State SMA Negeri 14 Medan T.A 2025/2026. The method used was quantitative research with a quasi-experimental design. The study population consisted of 11th-grade students, with a sample of 69 students from classes XI 4 and XI 5 selected through purposive sampling. The instruments used included an essay test, a questionnaire, and an observation sheet. The research results indicate that all five indicators of effectiveness were met: (1) the instructional structure was in the “good” category, based on evaluations by two out of three observers, who assigned scores of 86 and 87, respectively; (2) teacher communication was good, with two observers assigning a score of 34; (3) student response was good, as evidenced by 57 out of 69 students falling within the “good” frequency range; (4) student activity was good, with 62 students in the good category according to three observers; (5) learning achievement was complete without remedial instruction, with 58 students (91.3%) scoring in the 66–85% range. Thus, the use of the STAD method with GeoGebra is effective in enhancing students’ understanding of mathematical concepts.
Efektiitas Pembelajaran Dengan Media Pembelajaran Berbasis Budaya Batak Terhadap Peningkatan Pemahaman Konsep Siswa Kelas X SMA Swasta Free Methodist Medan Pada Materi Jarak Dalam Bangun Ruang 3 Dimensi Malau, Gideon; Sihombing, Dame Ifa; Simbolon, Lolyta Damora
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.v8i3.27462

Abstract

This study aims to determine the effectiveness of learning using Batak culture–based learning media in improving the mathematical conceptual understanding of Grade X students at Free Methodist Private Senior High School Medan on the topic of three-dimensional geometry. This study integrates Batak culture through the context of Jabu Bolon as a mathematics learning medium to support the visualization of distance concepts in three-dimensional geometry. In this study, local culture is not merely used as an illustrative context, but the structure and architectural form of Jabu Bolon are directly utilized as visual and contextual media in mathematics learning. The integration of local culture not only strengthens the connection between mathematical concepts and students’ real-life experiences, but also provides a more meaningful, contextual, and culturally relevant learning experience for students.This research used a quasi-experimental method with a population consisting of all Grade X students from three classes. The instruments used were tests and observations. The sample was determined through cluster random sampling, resulting in class X-C as the experimental class and class X-B as the control class. Data were collected using a conceptual understanding test. Data analysis was conducted using the Liliefors normality test, t-test, and N-Gain test. The results of the t-test showed a significance value of sig. (P(T≤t) two-tail) of 0.0074 0.05, indicating that there is a significant difference in conceptual understanding between the two sample classes. The average N-Gain score of the experimental class was 0.75 or 75%, which falls into the high category, while the control class obtained an N-Gain score of 0.39 or 39%, which falls into the medium category. When viewed from the indicators of effectiveness in the experimental class: (1) the quality of learning shows a sig. value (P(T≤t) two-tail) of 0.0074 0.05 and an N-Gain of 75%; (2) the appropriateness of the learning level is categorized as “very good” with a percentage value of 85.3%; and (3) learning time is categorized as “good” with an average score of 4.6. Therefore, it can be concluded that Batak culture–based learning is effective in improving the conceptual understanding of Grade X students on the topic of distance in three-dimensional geometry.
Co-Authors Adi Suarman Situmorang, Adi Suarman br Tarigan, Feber Magdalena Br. Sipayung, Yuli Pambreni Br. Tarigan, Juleha Febrika Dwi Lestari Firman Pangaribuan Giawa, Yulina Gulo, Nurhayati Gultom, Darma Indra Hutauruk, Agusmanto Hutauruk, Agusmanto J. B Ismail Husein, Ismail Lingga, Fitri Anjelita Malau, Gideon manalu, vriti sinta Manik, Efron Nababan, Labuan Ndruru, Enjeli Ratna Sari Pangaribuan, Gustin Magdalena Pasaribu , Mei Sartika Purba, Christin Geovani purba, rIcky rikardo Ritonga, Roy Ricardo Ruth Mayasari Simanjuntak Sarma Panggabean Sauduran, Golda Novatrasio Sembiring, Thresia Yohana Sianturi, Fitri Kristiani Sianturi, Krismawati Sianturi, Rianti Siburian, Elvi S Silangit, Menna Sri Ulina Simanullang, Christiani Mariana Simbolon, Lolyta Damora Simbolon, Totaria Sinaga, Rani Flora sinaga, samuel juliardi Sinambela, Lamtiur Siregar, Aseantri Cian Br Siregar, Golda Novatrasio Situmorang, Mahanda Dinaria Tambunan, Hardi Tampubolon, Charolin Febryan Tutiarny Naibaho Zagoto, Lidwina Shinta