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All Journal Journal of Innovative Science Education Journal of Innovative and Creativity
Prayogo, Gogo
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Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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The Development of Module of Plant Species Resources in Kreo Cave Area of Semarang as a Source of Biodiversity Learning Materials in High Schools Prayogo, Gogo; Rahayuningsih, Margareta; Rahayu, Enni Suwarsi
Journal of Innovative Science Education Article In Press
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jise.v10i1.47382

Abstract

The purpose of this study is to analyze the plants species resources and the validity of Module according to the material experts, media experts, and teacher experts, to analyze the practicality, as well as the effectiveness of learning outcomes. This research used the R&D method. This research was conducted using the ADDIE method which was conducted at Islamic High School of Baitussalam involving 2 classes with 62 students in total. Descriptive data analysis was used. The results of the research on biodiversity in the Kreo Cave area which included the levels of genes, species, and ecosystems, found the results of each of the three levels of biodiversity totaling 24 types of plants which are the gene level 2 species, at the species level 7 species and at the ecosystem level at 15 species. The Module of plant species resources in the Kreo Cave area is theoretically feasible by means of validation sheets for material experts, media experts, and teacher experts with respective scores of 76%, 80%, and 81%, or are in the valid category. Student responses to the Module as a learning resource indicate that the Module is very valid. This is proven from the results of small-scale trials that reach an average value of 72% or are in good criteria. Student learning outcomes assessed during the learning process using Modules showed very good results. This is proven by the increase in students' cognitive from an average of 44.18 to 79.6..
The Development of Module of Plant Species Resources in Kreo Cave Area of Semarang as a Source of Biodiversity Learning Materials in High Schools Prayogo, Gogo; Rahayuningsih, Margareta; Rahayu, Enni Suwarsi
Journal of Innovative Science Education Vol 11 No 1 (2022): April 2022
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jise.v10i1.47382

Abstract

The purpose of this study is to analyze the plants species resources and the validity of Module according to the material experts, media experts, and teacher experts, to analyze the practicality, as well as the effectiveness of learning outcomes. This research used the R&D method. This research was conducted using the ADDIE method which was conducted at Islamic High School of Baitussalam involving 2 classes with 62 students in total. Descriptive data analysis was used. The results of the research on biodiversity in the Kreo Cave area which included the levels of genes, species, and ecosystems, found the results of each of the three levels of biodiversity totaling 24 types of plants which are the gene level 2 species, at the species level 7 species and at the ecosystem level at 15 species. The Module of plant species resources in the Kreo Cave area is theoretically feasible by means of validation sheets for material experts, media experts, and teacher experts with respective scores of 76%, 80%, and 81%, or are in the valid category. Student responses to the Module as a learning resource indicate that the Module is very valid. This is proven from the results of small-scale trials that reach an average value of 72% or are in good criteria. Student learning outcomes assessed during the learning process using Modules showed very good results. This is proven by the increase in students' cognitive from an average of 44.18 to 79.6..
Studi Analisa Rugi-Rugi Daya Dan Jatuh Tegangan Saluran Transmisi Tegangan 150 KV Pada Gardu Induk Padang Industrial Park Ke Gardu Induk Lubuk Alung Prayogo, Gogo; Ridal, Yani; Nazallul A, Chairul
Journal of Innovative and Creativity Vol. 5 No. 3 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

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Abstract

The electric power transmission system plays an important role in maintaining the continuity and quality of power delivery from generation plants to consumers. This study aims to analyze the magnitude of power losses and voltage drops on the 150 kV transmission line connecting the Padang Industrial Park Substation and the Lubuk Alung Substation. The method used is a descriptive quantitative approach through manual calculations based on 24-hour operational data collected on January 4, 2025. The main parameters observed include load current, sending-end voltage, line length (13.7 km), and conductor specifications of ACSR 240/40 mm. The analysis results show that the maximum power loss occurred at 19:00 WIB, amounting to 249.91 kW or 0.46% of the sending power, while the minimum power loss occurred at 07:00 WIB, amounting to 75.78 kW or 0.25%. The total energy loss over 24 hours was recorded at 2885.94 kWh, with an average power loss of 118.99 kW (0.32%). The maximum voltage drop occurred at 19:00 WIB at 1,077.87 volts (0.71%), while the average voltage drop was 734.41 volts (0.49%) relative to the nominal voltage. All values of power loss and voltage drop are below the 3% threshold according to SPLN No. 72 of 1987, indicating that the transmission line operates efficiently and reliably.
Co-Authors Enni Suwarsi Rahayu Margareta Rahayuningsih Nugroho Edi K Nazallul A, Chairul Ridal, Yani