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All Journal Pentagon: Jurnal Matematika dan Ilmu Pengetahuan Alam
Alya Syifa Devani
Universitas Riau
Mathematics

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Penerapan Media Manipulatif Berbasis Bahan Bekas melalui Pembelajaran Kontekstual dalam Meningkatkan Pemahaman Konsep Satuan Berat Tidak Baku Siswa Kelas I Sekolah Dasar Alya Syifa Devani; Santi Santi; Jesi Alexander Alim; Cici Oktaviani
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 4 No. 3 (2026): September : Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/pentagon.v4i3.1114

Abstract

The mathematical concepts taught in elementary school are generally abstract, including the concept of measuring non-standard weight units. Students need to gain real learning experiences to understand those mathematical concepts. Manipulative media based on recycled materials, such as "scales," are an alternative that allows students to directly interact with learning objects through activities of observing, comparing, and discovering concepts to solve mathematical problems. This research uses the Classroom Action Research (CAR) method with the Kemmis and McTaggart model, which consists of the stages of planning, action, observation, and reflection. The purpose of this research is to analyze the use of manipulative media in understanding the concept of weight in mathematics. The research subjects consisted of 23 first-grade students in elementary school. Based on the results of the descriptive analysis, the average score of the students increased by 34.79 points, from 32.17 in the pretest to 66.96 in the posttest. The increase indicates a change in conceptual understanding after the implementation of manipulative media based on recycled materials.
Co-Authors Cici Oktaviani Jesi Alexander Alim Santi Santi