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All Journal Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Nasional Teknologi Komputer
Dwi Permata Sari
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Computer Science & IT Other

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Rancang Bangun Sistem Konsentrator Cahaya Matahari Dengan Lensa Fresnel Untuk Meningkatkan Intensitas Cahaya Matahari Pada Panel Solar Cell Dwi Permata Sari; Parlin Siagian; Dino Erivianto
Jurnal Nasional Teknologi Komputer Vol 5 No 3 (2025): Juli 2025
Publisher : CV. Hawari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61306/jnastek.v5i3.250

Abstract

Solar energy is one of the potential and environmentally friendly renewable energy sources. However, the efficiency of sunlight absorption by solar panels is often affected by the intensity of light received. This study aims to design and build a solar light concentrator system using a Fresnel lens to increase the intensity of light received by the solar panel. The issues addressed in this research include how to design a device with a Fresnel lens that can focus sunlight and how the use of this lens affects the electrical power generated by the solar panel. The research method includes the mechanical design of the concentrator system, installation of the Fresnel lens, and testing of light intensity and the output power of the solar panel before and after the lens application. This study is limited to the analysis of increased intensity and electrical power, without considering cost aspects or economic efficiency.
PENGARUH MODEL PEMBELAJARAN DISCOVERY LEARNING UNTUK MENINGKATKAN HASIL BELAJAR PENDIDIKAN PANCASILA PADA SISWA KELAS V UPT SPF SD NEGERI MANNURUKI KOTA MAKASSAR Dwi Permata Sari; Abdul Azis; Try Gustaf
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 01 (2026): Volume 11 No. 01 Maret 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i01.43167

Abstract

This research was motivated by the low learning outcomes of fifth-grade students at the SPF Unit of Mannuruki Public Elementary School, Makassar City, in Pancasila Education. The research method used was quantitative with a one-group pretest-posttest design. The sample was all 32 fifth-grade B students. Data collection techniques included observation, testing, and documentation. Data were analyzed using quantitative descriptive analysis and inferential analysis using the t-test. This study aimed to determine the effect of the Discovery Learning model on improving student learning outcomes. The results showed that implementing the Discovery Learning model improved student learning outcomes. The average student score increased from 40.53 in the pretest to 50.06 in the posttest. A statistical test using paired samples test yielded a significance value <0.000, indicating a significant difference between learning outcomes before and after the treatment. Therefore, it can be concluded that the Discovery Learning model significantly improved Pancasila Education learning outcomes for fifth-grade B students at the SPF Unit of Mannuruki Public Elementary School, Makassar City.
Co-Authors Abdul Azis Parlin Siagian Try Gustaf