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All Journal ABSIS : Mathematics Education Journal Perpendicular : Journal of Mathematics Education and Learning
Lestariningsih, Desika
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Decision Sciences, Operations Research & Management Education Mathematics

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Desika Letariningsih Lestariningsih, Desika
Absis: Mathematics Education Journal Vol 5 No 2 (2023): November 2023
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/absis.v5i2.4554

Abstract

Abstrak: Penelitian ini bertujuan untuk menerapkan media karpone untuk meningkatkan hasil belajar siswa kelas VII SMP Negeri I Puding Besar tentang penjumlahan dan pengurangan bilangan bulat. Penelitian ini telah dilaksanakan pada bulan September 2019 di SMP Negeri I Puding Besar. Penelitian ini dilakukan melalui 4 tahapan, yakni perencanaan, pelaksanaan, pengamatan dan refleksi. Instrumen yang digunakan adalah lembar observasi guru dan siswa, instrumen tes, dan catatan lapangan. Hasil penelitian menunjukkan bahwa nilai rata-rata hasil tes pemahaman akhir siswa siklus 1 adalah 28,61, kemudian meningkat menjadi 91,94 di akhir siklus 2. Sedangkan persentase aktivitas guru juga mengalami peningkatan yakni dari siklus I 82,83 % dan di siklus II menjadi 96,97 %. Aktivitas siswa juga turut meningkat dari 47,33% menjadi 97,5 %.Dengan demikian dapat disimpulkan bahwa penerapan media karpone dapat meningkatkan hasil belajar siswa kelas VII B pada SMP Negeri I Puding Besar tentang penjumlahan dan pengurangan bilangan bulat. Kata kunci : Penerapan media karpone, hasil belajar, penjumlahan dan pengurangan bilangan bulat
EFFECTIVENESS OF PROBLEM BASED LEARNING ASSISTED BY POWERPOINT MEDIA ON STUDENTS’ MATHEMATICAL PROBLEM-SOLVING ABILITY IN JUNIOR HIGH SCHOOL Rivaral, Etienne Rey; Lestariningsih, Desika
Perpendicular : Journal of Mathematics Education and Learning Vol. 1 No. 2 (2025): Perpendicular : Journal of Mathematics Education and Learning
Publisher : CV. Doki Course and Training

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61994/perpendicular.v1i2.1521

Abstract

This study aims to examine the effectiveness of the Problem Based Learning (PBL) model assisted by PowerPoint media in mathematics learning for seventh-grade students at SMP Negeri 1 Puding Besar, particularly in improving students’ mathematical problem-solving ability. This study employed a pre-experimental research design using a one-group posttest-only approach. The participants consisted of 29 students from class VII.A. Data were collected through observation sheets, questionnaires, and a posttest. Data analysis was conducted using percentage analysis to evaluate student activities, learning outcomes, and learning attitudes. The results showed that the overall effectiveness of the PBL model assisted by PowerPoint media reached 82.7%, which falls into the very effective category. This effectiveness is supported by high levels of student activity, satisfactory learning completeness, and positive student responses. The findings indicate that the integration of PBL with visually supported PowerPoint media encourages active engagement and collaborative problem-solving, which are essential components in developing students’ mathematical problem-solving skills.
Co-Authors Rivaral, Etienne Rey