Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal SEPREN: Journal of Mathematics Education and Applied
Purba, Rahel Dominggo
Unknown Affiliation
Decision Sciences, Operations Research & Management Education Mathematics Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
MENGHUBUNGKAN MASA LALU DAN KONSEP MATEMATIKA DENGAN PENDEKATAN HISTORIS DALAM PENDIDIKAN Frisnoiry, Suci; Situmorang, Glory Indah; Purba, Rahel Dominggo; Br Ginting, Clara Yolanda; Panjaitan, Jelika; Najwa, Almaulidah
Sepren Vol 6 No 01 (2024): Edisi November 2024
Publisher : Prodi Pendidikan Matematika FKIP Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sepren.v6i01.1709

Abstract

This study aims to explore the importance of connecting the past with mathematical concepts through a historical approach in education. In the context of mathematics education, a historical approach can help students understand the development of mathematical concepts and their relevance to everyday life. By presenting the history behind mathematical discoveries, students can see the connections between theory and practice, enhancing their interest and motivation to learn. This research uses a qualitative method with data analysis from various national sources, including previous studies and educational curricula. The findings are expected to provide new insights for educators in implementing a historical approach in mathematics learning, along with recommendations for developing a more contextual curriculum.
Pengembangan Bahan Ajar Berbasis Pendekatan Pendidikan Matematika Realistik Terintegrasi Multimedia Untuk Meningkatkan Kemampuan Spasial Siswa Pada Materi Bangun Ruang PURBA, RAHEL DOMINGGO
Sepren Vol 7 No 01 (2025): Edisi November 2025
Publisher : Prodi Pendidikan Matematika FKIP Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sepren.v7i01.1924

Abstract

In order to improve student’s spatial abilities in the material of spatial figures (cubes and cuboids), teachers should develop learning innovations, one of which is through the use of teaching materials based on the Realistic Mathematics Education approach integrated with multimedia. This study aims to: (1) determine the quality of the teaching materials developed in terms of validity, practicality, and effectiveness; and (2) determine the increase in student's spatial abilities after participating in learning using the developed teaching materials. This study uses the ADDIE development model with subjects of class VIII-E students of SMP Negeri 2 Satu Atap Patumbak, while the research object is teaching materials based on the Realistic Mathematics Education approach integrated with multimedia. The research instruments used are questionnaires and tests. The results of the study show that: (1) the teaching materials developed are valid based on the assessment of material experts with an average score of 4.5 and media experts with an average score of 4.46, with a very feasible category; (2) the practicality of the teaching materials is stated to be very practical with a practicality value range of 80≤V_p≤100; (3) the effectiveness of the teaching materials with the achievement of classical learning completeness of 90%, average individual completion of 89.5, positive student responses to effectiveness, and a significant increase in spatial ability, from an average pretest score of 28.1 to 89.5 in the posttest. An increase of 0.87 with a high category in the N-Gain analysis results. Keyword: Teaching Materials, ADDIE, Realistic Mathematics Education Approach, Multimedia, Spatial Ability.
Co-Authors Br Ginting, Clara Yolanda Najwa, Almaulidah Panjaitan, Jelika Situmorang, Glory Indah Suci Frisnoiry