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Anita Sabrina Pasaribu
Universitas HKBP Nomensen Medan
Education

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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 Gajut Manik-Manik Dalam Budaya Simalungun Pada Konsep Geometri Anita Sabrina Pasaribu; Francius Sipayung; Hardi Tambunan; Ruth Mayasari Simanjuntak
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.v7i1.6904

Abstract

Maths is the clearest and most unambiguous of sciences. However, for most students, mathematics is one of the most feared and difficult subjects to understand due to the lack of understanding of the concepts needed. In line with the mathematical concepts needed in learning, a teacher can relate mathematical concepts to local culture. Mathematics embedded in culture is called ethnomathematics. This research explores the concept of mathematics in Gajut Manik-manik. Gajut Manik-manik is part of the bride's outfit in Simalungun tradition which serves as a place for betel nut, areca nut, gambier, lime and tobacco. This study aims to explore the various mathematical concepts found in Gajut beads. The research method used is a qualitative method with an ethnographic approach. Data collection was done through observation, interviews, documentation, and literature study. The data collection instruments used were observation sheets, interview sheets, cameras, field notes and voice recorders. Data analysis techniques include data reduction, data presentation, and conclusion drawing. The results obtained from this study indicate that there are mathematical concepts in Gajut beads, namely the concept of tube space, circle flat and kite. Thus, it can be concluded that Gajut beads can be used as a concrete mathematics learning tool in understanding mathematical concepts.
Co-Authors Firman Pangaribuan Francius Sipayung Hardi Tambunan Hardi Tambunan Ruth Mayasari Simanjuntak