Article Per Year (5 Year)
p-Index From 2020 - 2025
0.947
P-Index
This Author published in this journals
All Journal Journal of Education and Instruction (JOEAI) Journal on Education
Hardi Tambunan
Universitas HKBP Nomensen Medan
Humanities Education Languange, Linguistic, Communication & Media Social Sciences

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Investigasi Minat dan Motivasi Belajar Matematika Siswa SMP dalam Pembelajaran Daring di Era Pandemic Covid-19 Lulu Brygita Silalahi; Susi Sihombing; Tuty Novelinda Purba; Riko Kurniawan Marpaung; Wita Sinaga; Hardi Tambunan
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.v4i2.2810

Abstract

This study aims to investigate the interest and motivation in learning mathematics for junior high school students during online learning during the Covid-19 pandemic in depth and to explore the faktors that influence students' interest and motivation in learning using triangulation techniques, namely observation and interviews. This research uses descriptive qualitative research method with the type of case study research. This research was conducted at SMP Negeri II Dolok Pardamean, Simalungun Regency. The population in this study were all seventh grade students for the 2020/2021 academic year at SMP Negeri II Dolok Pardamean. The sample used was all students of class VII-1, then 3 students were selected for the 2020/2021 academic year. Based on the results and discussion of the research, it shows that most of the seventh grade students of SMP Negeri II Dolok Pardamean have high interest and motivation in learning mathematics, which is indicated by the average percentage of students' interest and motivation in learning mathematics, which is 76.46%. In conclusion, online learning that has been carried out at SMP Negeri II Dolok Pardamean has succeeded in increasing interest and motivation in learning mathematics for grade VII-1 students and is in the high category. The success faktor in increasing students' interest and motivation in learning is influenced by teachers and students' family support. Keywords: Online learning, interest in learning, students' motivation to learn mathematics, the covid-19 pandemic
Eksplorasi Tagading terhadap Konsep Bagun Ruang Lamsoan Ritonga; Mangoloi P Siregar; Elda Kertiasa Sihombing; Roberto Tua Silaen; Hardi Tambunan; Ruth M Simanjuntak
Journal on Education Vol 6 No 1 (2023): Journal On Education: Volume 6 Nomor 1 Tahun 2023
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v6i1.3838

Abstract

ABSTRACT This study aims to explore the relationship between the traditional musical instrument of the Toba Batak tribe known as Tagading and the concept of geometry. This study uses a qualitative approach through direct observation, interviews, and documentation to collect relevant data. The results of the study show that Tagading has geometric concepts in the form of geometric shapes and geometric shapes. The shape of the circle, as well as the structure and placement of the wood in Tagading illustrate these geometric concepts. Apart from that, the rhythmic patterns and long proportions of wood in Tagading also illustrate the relationship between music and mathematics. This research has important implications in developing mathematics learning methods that are relevant to local culture, as well as providing innovative learning experiences for students. The findings of this study can enrich our understanding of the relationship between culture, traditional music and geometric concepts.
Pengaruh Model Pembelajaran Project Based Learning Terhadap Kemampuan Komunikasi Matematis Dan Self Confidence Siswa Mindo Juliani Kelly Lubis; Firman Pangaribuan; Hardi Tambunan
Journal on Education Vol 6 No 2 (2024): Journal on Education: Volume 6 Nomor 2 Tahun 2024
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v6i2.5356

Abstract

Salah Satu permasalahan pada pembelajaran matematika di SMK Negeri 6 Medan yakni kemampuan komunikasi matematika dan self confidence siswa yang yang masih kurang. Adapun tujuan penelitian ini yaitu untuk mengetahui pengaruh model project based learning terhadap kemampuan komunikasi dan self confidence matematika siswa kelas XI SMK Negeri 6 Medan. Jenis penelitian yang digunakan adalah penelitian kuantitatif dengan menggunakan metode eksperimen semu (quasi eksperimen design). Instrumen yang digunakan dalam penelitian ini adalah tese tertulis dalam bentuk uraiann tes untuk mengukur kemampuan komunikasi siswa dan angket self confidence. Analisis data penelitian ini menggunakan uji Mann Whitney U. Berdasarkan hasil penelitian dan analisis data, diperoleh kesimpulan bahwa project based learning berpengaruh terhadap kemampuan komunikasi matematis dan self confidence siswa.
Pengaruh Self Confidence dan Self Efficacy terhadap Kemampuan Berpikir Kreatif Matematika Siswa SMP Anita Sabrina Pasaribu; Firman Pangaribuan; Hardi Tambunan
Journal on Education Vol 6 No 2 (2024): Journal on Education: Volume 6 Nomor 2 Tahun 2024
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v6i2.5431

Abstract

On the achievement of mathematical creative thinking, an important aspect that must be possessed by students is self confidence and self efficacy is good, because in self confidence and self efficacy there are indicators that can supportthat goal. This studyaimsto find out indepth about the influence of self confidence and self efficacy simultaneously to the ability of mathematical creative thinking of junior high school students. The population in this study were junior high school students in Kabupaten Simalungun. Instrument in this research in the form of test of creative thinking ability of mathematic counted four problem, and enquette self confidence and self efficacy student. Methods in this study using multiple regression method. The results of this study indicate that there is influence of self confidence and self efficacy to the ability of mathematical creative thinking of junior high school students.
Eksplorasi Etnomatematika Pada Solu Bolon Terhadap Konsep Geometri Limasso Gultom; Niskah Pardede; Windhy F. Simamora; Ruth Mayasari Simanjuntak; Hardi Tambunan
Journal on Education Vol 7 No 1 (2024): Journal on Education: Volume 7 Nomor 1 Tahun 2024
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v7i1.6926

Abstract

This study aims to explore the geometric concepts present in the traditional construction of Solu Bolon, a traditional boat of the Batak Toba tribe in North Sumatra. Solu Bolon not only functions as a means of transportation but also as a symbol of social status and power in Batak Toba society. Through a qualitative descriptive ethnographic approach, this research identifies and analyzes the geometric elements found in the ornaments, construction process, and symbolism of Solu Bolon. Data were collected through observation, interviews with traditional leaders and Solu Bolon craftsmen, and visual documentation. The results of the study indicate that Solu Bolon applies various geometric concepts such as symmetry, proportion, and geometric shapes like rectangular prisms and beams in different parts of the boat, including the paddle blades, bow ornaments, stern decorations, and side walls. Additionally, this research found that the application of geometric concepts in Solu Bolon traditions can be used as a contextual approach in teaching geometry, thereby enhancing students' interest and understanding of geometry while fostering a sense of love and pride in local culture.
Co-Authors Anita Sabrina Pasaribu Elda Kertiasa Sihombing Firman Pangaribuan Lamsoan Ritonga Limasso Gultom Lulu Brygita Silalahi Mangoloi P Siregar Mindo Juliani Kelly Lubis Niskah Pardede Riko Kurniawan Marpaung Roberto Tua Silaen Ruth M Simanjuntak Ruth Mayasari Simanjuntak Susi Sihombing Tuty Novelinda Purba Windhy F. Simamora Wita Sinaga