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All Journal Cendikia : Media Jurnal Ilmiah Pendidikan Charm Sains : Jurnal Pendidikan Fisika Impulse: Journal of Research and Innovation in Physics Education
Mahulae, Parno Sumanro
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Education Languange, Linguistic, Communication & Media Mathematics Physics Social Sciences Other

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Implementation of problem based learning model to improve students' understanding of reforestation and disaster mitigation Mahulae, Parno Sumanro
Cendikia : Media Jurnal Ilmiah Pendidikan Vol 14 No 4 (2024): March : Education Science
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/cendikia.v14i4.4917

Abstract

This study aims to determine students' understanding of greening and disaster mitigation through the application of problem-based learning model. This research is a quantitative descriptive research. This research was conducted in grade 7 of SMP Negeri Poopo, Rayonapo District, South Minahasa Regency. The results showed that students' understanding of reforestation and disaster mitigation with respondents who became sample members as many as 42 students, as many as 11 students (26%) in the very good category, 20 students (48%) in the good category, 10 students (24%) in the good enough category, 1 student (2%) in the less good category. This means that with problem-based learning, students have a very good understanding of reforestation and disaster mitigation.
IMPLEMENTASI MODEL PEMBELAJARAN KOOPERATIF TIPE TWO STAY TWO STRAY (TSTS) PADA MATERI SUHU DAN KALOR UNTUK MENINGKATKAN HASIL BELAJAR SISWA DI SMA NEGERI 2 TONDANO Lombo, Riris Liliana; Marianus; Rampengan, Alfrie Musa; Rende, Jeane Cornelda; Mahulae, Parno Sumanro
Charm Sains: Jurnal Pendidikan Fisika Vol 6 No 3 (2025): OKTOBER
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

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The Two Stay Two Stray (TSTS) cooperative learning model is an approach that focuses on active interaction between students through discussion activities and information exchange between groups. This study was conducted with the aim of determining the effect of the TSTS model on the learning outcomes of students at Tondano 2Public High School on the subject of temperature and heat. The method applied in this study was a quasi-experiment with a non-equivalent pretest-posttest control group design,involving two classes, namely the experimental class and the controlclass. In the experimental class, the pretest results showed an average of 34 and increased to 83.05 in the posttest, while the control class experienced an increase from an average of 33.52 to 73.81. Furthermore, a statistical analysis in the form of an independent t-test was conducted, which yielded a sig. value of 0.0002 (<0.05), indicating that there was a significant difference in learning outcomes between the two groups. The application of the TSTS cooperative learning model proved to be effective in improving learning outcomes because it encouraged students to be more active, responsible, and directly participate in learning activities. From these results, it can be concluded that the application of the TSTS cooperative learning model has a positive effect on improving student learning outcomes on the topic of temperature and heat.
Rasch Model Analysis of Senior High School Physics Test Items in an Academic Competition in North Sulawesi Tumanggor, Awal Mulia Rejeki; Mahulae, Parno Sumanro; Sekeon, Cristi Ascika; Silaban, Yohansen Frando Hadinata; Ahmad, Liza Septia; Pujianti, Isna
Impulse: Journal of Research and Innovation in Physics Education Vol. 6 No. 1 (2026): Vol. 6 No. 1 (2026): Impulse: Journal of Research and Innovation in Physics Edu
Publisher : Pendidikan Fisika FITK UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/impulse.2026.61-03

Abstract

Evaluating the quality of test items is crucial for accurately assessing student competence in academic competitions such as physics olympiads. This study aims to analyze the quality of physics olympiad test items used in the Temu Fisika 2024 competition for senior high school students across North Sulawesi. A total of 40 multiple-choice items from the preliminary round of the Temu Fisika 2024 physics olympiad were analyzed. The responses of 35 high school students who participated in the competition were examined using the Rasch model through the QUEST program. The analysis covered item fit, reliability (item and person), difficulty level, and distractor effectiveness as complementary CTT analysis. The results showed that 33 items (82.5%) fit the Rasch model, while seven items showed misfit. The Rasch reliability indices were good (Item Reliability = 0.82, Person Reliability = 0.84). The difficulty levels were appropriately distributed, with 50% of items categorized as moderate, 22.5% easy, 20% difficult, 2.5% very easy, and 5% very difficult. However, distractor analysis revealed a significant shortcoming: only 15% of items had all distractors functioning effectively. This study is the first Rasch analysis of the Temu Fisika olympiad, providing empirical evidence that while the test is generally reliable, specific improvements are needed. The findings highlight the importance of revising misfitting items and non-functional distractors to improve the discriminating power of the test, particularly among high-ability participants. This study also provides a practical reference for improving item development and validation processes in academic competitions.
Co-Authors Ahmad, Liza Septia Alfrie Musa Rampengan Awal Mulia Rejeki Tumanggor Lombo, Riris Liliana Marianus Pujianti, Isna Rende, Jeane Cornelda Sekeon, Cristi Ascika Silaban, Yohansen Frando Hadinata