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All Journal PUSAKA: Journal of Educational Review
Nur Anisa
PPG Pendidikan Guru Sekolah Dasar, Universitas PGRI Kanjuruhan Malang, Indonesia
Education Other

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Rotating Angle Board as a Teaching Aid to Improve Third-Grade Elementary School Students’ Understanding of Angles Nur Anisa; Nury Yuniasih; Ernawati Ernawati
PUSAKA: Journal of Educational Review Vol. 4 No. 1 (2026): Intelligent Technologies and Innovative Approaches in Contemporary Education
Publisher : S&Co Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/pjer.v4i1.105

Abstract

This study aims to improve Grade III students' understanding of the concept of angles at SDN Tanjungrejo 04 through the use of a rotating angle board as a medium. The study used the Classroom Action Research method implemented in two cycles, with 24 students as research subjects. Data collection techniques were carried out through observation, tests, and documentation. The test instruments were pretests and posttests, which were analyzed using the N-Gain formula to determine the increase in students' understanding. The results showed that the use of rotating angle board media improved students' learning outcomes and conceptual understanding. The average score increased from 59.50 on the pretest to 74.00 in Cycle I and increased to 87.67 in Cycle II. In addition, the average N-Gain increased from 0.39 in Cycle I to 0.71 in Cycle II. Classical learning mastery improved from 70.83% in Cycle I to 100% in Cycle II. Furthermore, the implementation of rotating angle board media encouraged students to become active, enthusiastic, and engaged during the learning process, making it easier for them to understand angle concepts concretely. Therefore, rotating angle board media can be used as an effective learning medium to improve elementary school students' understanding of angle concepts.
Co-Authors Ernawati Ernawati Nury Yuniasih