Nyoman Rohadi
Program Studi Pendidikan Fisika Universitas Bengkulu

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Descriptive Qualitative Analysis Based on Physics Mental Model of Students’ Cognitif Understanding on the Concepts of Kinematics Particle and Parabolic Motion Nyoman Rohadi; Iwan Setiawan; Eko Swistoro
Jurnal Pembelajaran Fisika Vol 8, No 1 (2020): Jurnal Pembelajaran Fisika
Publisher : Jurnal Pembelajaran Fisika

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Abstract

This article portrays descriptive analysis results based on a physics mental model toward the cognitive reasoning of the first semester students in the year of study 2019/2020 in the physics education study program of the JPMIPA FKIP Bengkulu University on the concepts of kinematics particle and parabolic motion. The analyzed data were a pretest, students worksheets (SWS), and posttest data Of 28 students who participated in basics physics, one class. There was a different score between the mean score of the pretest and the posttest data. The mean score of the pretest data was 45.21 in a range score of 30.00-80.00 and the mean score of the posttest data was 72.50 in a range score of 50.00-100.00. The descriptive analysis of the pretest data and the SWS data indicated that there was a low cognitive competency among the students in understanding the physics diagram and solving physics graphs related problems. But no student found any difficulty in using physics equations on solving the uniform motion problems. Even though some students failed in solving the amount of acceleration related problems. Student’s cognitive reasoning sounds good on the posttest data.   Most of the students could apply the physics mental model on solving conceptual, diagram, graph, and mathematics-related physics problems.Keywords: mental model, cognitive reasoning, arithmetics particle, parabolics motion.DOI: http://dx.doi.org/10.23960/jpf.v8.n1.202012
PENGEMBANGAN PERANGKAT PEMBELAJARAN MODEL DEBAT AKTIF PADA MATERI PEMANASAN GLOBAL UNTUK SISWA KELAS XI SMA Okta Ariesan Deka; Nirwana Nirwana; Nyoman Rohadi
DIKSAINS : Jurnal Ilmiah Pendidikan Sains Vol 1, No 1 (2020): DESEMBER 2020
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (783.404 KB) | DOI: 10.33369/diksains.1.1.10-17

Abstract

ABSTRAK Berdasarkan hasil obesrvasi yang dilakukan disekolah, perangkat pembelajaran yang digunakan guru belum tersusun dengan baik dan belum menggunakan instrumen penilaian yang sesuai dengan model pembelajran yang digunakan. Penelitian ini bertujuan untuk menghasilkan perangkat pembelajaran model debat aktif pada materi pemanasan global untuk kelas XI SMA. Penelitian ini menggunakan metode penelitian research and development dengan model  Sugiyono Level 1. Adapun tahapan-tahapan yaitu potensi dan masalah, studi literatur dan pengumpulan informasi, desain produk, validasi desain dan perbaikan desain. Validasi produk dilakukan oleh 3 ahli yang ditinjau dari 3 aspek yaitu  aspek penyajian, aspek isi  dan aspek kebahasaan. Berdasarkan hasil uji validasi aspek penyajian didapatkan persentase sebesar 75,5%  dengan kategori valid, aspek isi didapatkan persentase sebesar 81,6% dengan kategori sangat valid, aspek kebahasaan didapatkan persentase sebesar 83,3% dengan kategori sangat valid. Berdasarkan hasil tersebut, dapat disimpulkan bahwa perangkat pembelajaran model debat aktif pada materi pemanasan global untuk kelas XI SMA yang dihasilkan sudah valid/layak untuk diujicobakan dengan persentase rata-rata sebesar 80,13%.Kata kunci : Perangkat Pembelajaran, Debat Aktif, Berpikir Kritis, Berargumentasi ABSTRACT Based on the results of observation carried out in school, the learning tools used by teachers were not well structured and did not use assessment instruments that are in accordance with the learning model used. This study aimd to produced an active debate model of learning tools on the subject of global warming for high school class XI. This research used research and development method with Sugiyono Level 1 model. The stages were potential and problems, literature study and information gathering, product design, design validation and design improvement. Product validation was carried out by 3 experts reviewed from 3 aspects namely presentation, content and linguistic aspects. Based on the results of the validation test of the presentation aspect obtained a percentage of 75.5% with a valid category, the content aspect obtained a percentage of 81.6% with a very valid category, the linguistic aspect obtained a percentage of 83.3% with a very valid category. Based on these results, it can be concluded that the active debate model of learning tools on the matter of global warming for high school class XI produced is valid / feasible to be tested with an average percentage of 80.13%.Keywords : Learning Tools, Active Debate, Critical Thinking, Arguing