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All Journal Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal)
Kertiyani, Ni. Made Intan
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Agriculture, Biological Sciences & Forestry Chemistry Education Physics

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Peningkatan Hasil Belajar Matematika Peserta Didik Pada Model Problem Based Learning (PBL) Kelas IX SMP Negeri 13 Mataram Semester Ganjil Tahun Ajaran 2024/2025 Juliyanti; Kertiyani, Ni. Made Intan; Nugroho, Slamet
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 3 (2025): Agustus
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v6i3.877

Abstract

This classroom action research (CAR) aims to examine the improvement of students’ mathematics learning outcomes through the implementation of the Problem Based Learning (PBL) model on the topic of exponents. The study was conducted in class IX-G of SMP Negeri 13 Mataram during the first semester of the 2024/2025 academic year, involving 32 students as research subjects. The research was carried out in two cycles, each consisting of the stages of planning, implementation, observation, and reflection. Data were collected through direct observation by the observer during the learning process and through students’ cognitive achievement tests administered at the end of each cycle. The data were analyzed using descriptive statistical techniques, with the indicator of success being an increase in the average mathematics learning outcomes in each cycle. The results showed a significant improvement in students’ mathematics performance after implementing the PBL model. In the first cycle, the average percentage score of students’ learning outcomes was 56%, which increased to 78% in the second cycle. Therefore, it can be concluded that the Problem Based Learning (PBL) model has a positive and effective impact on improving students’ mathematics learning outcomes in class IX of SMP Negeri 13 Mataram.
Peningkatan Pemahaman dan Hasil Belajar Peserta Didik melalui Penerapan Model Pembelajaran Discovery Learning pada Materi Perpangkatan dan Bentuk Akar Kelas IX Dwi Darmawan, Ahmad Putra; Kertiyani, Ni. Made Intan; Nugroho, Slamet
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 3 (2025): Agustus
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v6i3.913

Abstract

The mathematics learning process at the junior high school level often faces challenges, particularly in conceptual understanding, which affects students’ overall academic achievement. One potential solution to address this issue is the implementation of the Discovery Learning model, which encourages students to independently discover concepts through exploratory learning activities. This study aims to analyze the effectiveness of the Discovery Learning model in improving conceptual understanding and learning outcomes of ninth-grade students at SMP Negeri 13 Mataram on the topic of Exponents and Roots. The research employed a Classroom Action Research (CAR) approach conducted in two cycles, each consisting of planning, implementation, observation, and reflection stages. Data were collected through learning activity observations, questionnaires, and mathematics achievement tests. The results showed that the implementation of Discovery Learning successfully enhanced students’ conceptual understanding, as reflected in the increase of the average conceptual understanding score from 60.00 in the pre-cycle (fair category) to 75.50 in cycle I (good category) and 85.75 in cycle II (very good category). Moreover, students’ overall learning outcomes also showed significant improvement, with average scores increasing from 60.25 in the pre-cycle (fair) to 78.00 in cycle I (good) and 88.50 in cycle II (very good). The percentage of students achieving scores above the minimum mastery criterion (KKM) also rose from 35% in the pre-cycle to 60% in cycle I, and 85% in cycle II. Therefore, it can be concluded that the Discovery Learning model is effective in significantly improving students’ conceptual understanding and mathematics learning outcomes.
Co-Authors Dwi Darmawan, Ahmad Putra Juliyanti Nugroho, Slamet