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All Journal JURNAL PENDIDIKAN TAMBUSAI Jurnal Ilmiah Mandala Education (JIME)
Simanjuntak, Ruth M
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Arts Humanities Education Law, Crime, Criminology & Criminal Justice Social Sciences

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Journal : Jurnal Ilmiah Mandala Education (JIME)

 1 
Exploration of the Keteng-Keteng Musical Instrument in Learning the Surface Area of Cylinders at SMPS Deli Murni Bandar Baru Sihombing, Artha Hadia; Tambunan, Hardi; Simanjuntak, Ruth M
Jurnal Ilmiah Mandala Education (JIME) Vol 11, No 3 (2025): Jurnal Ilmiah Mandala Education (Agustus)
Publisher : Lembaga Penelitian dan Pendidikan Mandala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58258/jime.v11i3.9096

Abstract

This research aims to explore the potential of traditional musical instruments.Keteng-Ketengas a contextual media in learning the concept of surface area of cylinders at the junior high school level. This musical instrument is known in the Batak Karo culture and has a distinctive cylindrical shape, making it relevant for use in understanding spatial figures. The research was conducted at SMPS Deli Murni Bandar Baru with an ethnomathematics approach. The method used was descriptive qualitative with observation, interview, and documentation techniques. The results showed that the use of Keteng-Keteng in learning was able to improve students' understanding of the surface area of cylinders and create a contextual, meaningful learning atmosphere rooted in local culture.
Exploration of the Gondang Batak Form in relation to the Concept of Spatial Building Sihotang, Friska Ladista; Tambunan, Hardi; Simanjuntak, Ruth M
Jurnal Ilmiah Mandala Education (JIME) Vol 11, No 3 (2025): Jurnal Ilmiah Mandala Education (Agustus)
Publisher : Lembaga Penelitian dan Pendidikan Mandala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58258/jime.v11i3.9097

Abstract

This research aims to explore the potential of traditional musical instruments.Keteng-Ketengas a contextual media in learning the concept of surface area of cylinders at the junior high school level. This musical instrument is known in the Batak Karo culture and has a distinctive cylindrical shape, making it relevant for use in understanding spatial figures. The research was conducted at SMPS Deli Murni Bandar Baru with an ethnomathematics approach. The method used was descriptive qualitative with observation, interview, and documentation techniques. The results showed that the use of Keteng-Keteng in learning was able to improve students' understanding of the surface area of cylinders and create a contextual, meaningful learning atmosphere rooted in local culture.
Gondra's Exploration of Tube Volume Juraganda S, Chandra Saptanto; Tambunan, Hardi; Simanjuntak, Ruth M
Jurnal Ilmiah Mandala Education (JIME) Vol 11, No 3 (2025): Jurnal Ilmiah Mandala Education (Agustus)
Publisher : Lembaga Penelitian dan Pendidikan Mandala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58258/jime.v11i3.9095

Abstract

This study aims to explore students' understanding of the concept of cylinder volume through a contextual approach based on the fictional character "Gondra". Gondra is used as a character in story problems that are used as a medium to attract attention and improve students' understanding of mathematical concepts. Using a descriptive qualitative approach, data were collected through observations, interviews, and written tests of sixth-grade elementary school students. The results of the study indicate that a narrative-based approach with the character Gondra is able to improve students' understanding in determining the volume of a cylinder conceptually and procedurally. This study also shows a higher emotional involvement of students in solving contextual mathematical problems.
Co-Authors Dakhi, Noferia Juraganda S, Chandra Saptanto Ndruru, Marinus Sihombing, Artha Hadia Sihotang, Friska Ladista Tambunan, Hardi