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All Journal Budapest International Research and Critics in Linguistics and Education Journal (Birle Journal) Jurnal Info Sains : Informatika dan Sains Jurnal Ilmiah Teknik Mesin, Elektro dan Komputer
Adi Sutopo
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Humanities Computer Science & IT Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Other

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The Effect of Jigsaw Type of Cooperative Learning Model on Concepts Understanding and Critical Thinking Skills of Students in Class V SD Negeri 112146 Janji in the Science Lesson, Academic Year 2021/2022 Aland Wijaya Kusuma; Adi Sutopo; Benny Agus Pribadi
Budapest International Research and Critics in Linguistics and Education (BirLE) Journal Vol 5, No 2 (2022): Budapest International Research and Critics in Linguistics and Education, May
Publisher : BIRCU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birle.v5i2.5147

Abstract

This study aims: (1) To determine the level of students' conceptual understanding after jigsaw type cooperative learning. (2) To determine the level of students' thinking ability after jigsaw type cooperative learning. (3) To determine the effect of jigsaw type learning method on concept understanding ability. (4) To determine the effect of the jigsaw learning method on critical thinking skills. The type of experimental research used is Quasi-Experimental. The research subjects consisted of 80 students. Samples were taken from the subject population consisting of 40 students in class V a (control group) and 40 students in class V b (experimental group). The results showed that the jigsaw method significantly affected the understanding of concepts and thinking skills of the fifth grade students of SDN 112146 Janji in social studies subjects. The activity of understanding the concept and thinking skills of the experimental class students reached very high criteria, while in the control class it only reached the sufficient criteria. The average posttest score of the experimental group was better than the control group. The mean posttest of the experimental group was 74.13 and the mean posttest of the control group was 66.23. This shows that the gain index <g> of the experimental group is 73.45 (high) while the <g> of the control group is 65.62 (medium). The results of the t-test show that the value of tcount (2,272) > ttable (1,990) means that the Jigsaw method has an effect on social studies learning outcomes and the value of Sig. (2-tailed) < 0.05 that is 0.026. These results conclude that there is a significant difference between the learning outcomes of the experimental class and the control class.
Development of Learning-Based Teaching Materials Realistic Mathematics to Improve Elementary Students Mathematics Learning Results Serdang Bedagai Ramnah Sinaga; Kms. Muhammad Amin Fauzi; Adi Sutopo
Jurnal Info Sains : Informatika dan Sains Vol. 14 No. 02 (2024): Informatika dan Sains , Edition, June 2024
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/infosains.v14i02.4417

Abstract

This study aims to describe the validity of teaching materials based on Realistic Mathematics Learning. The research instrument consisted of expert assessment sheets and student learning outcomes tests. The analysis technique uses expert validation and calculates Gain and N-gain with student test results. The results of the study stated that mathematics teaching materials developed based on realistic mathematics learning had a validity value according to material experts of 88.54%, design experts at 87.33%, and linguists at 90.63%. Mathematics teaching materials developed based on realistic mathematics learning have a practicality value based on student assessment of 0.96 so they are very practical to use in the implementation of learning in class V SD Negeri 104335 Marjan Serdang Bedagai Mathematics teaching materials developed have an effectiveness value based on student learning activities, namely how much increasing the effectiveness of student learning by 55.49% to 88.46% with a very effective category. There was an increase in student learning outcomes in fractional arithmetic operations material using realistic mathematics-based teaching materials in which the average pre-test result of 41.73 increased to 87.69, the N-Gain value was 0.79 in the high category and the statistical test score was sig. 0.000< sig. 0.05.
Analisis Teori Penerapan Panel Surya pada Lampu Jalan Tol Adi Sutopo; Muhammad Dani Sohilin; Kimi Bonari Siahaan; Muhammad Syauqi Adnan; Christiano Togatororp; Michael Cristy; Azmi Nasution
Jurnal Ilmiah Teknik Mesin, Elektro dan Komputer Vol. 5 No. 2 (2025): Juli: Jurnal Ilmiah Teknik Mesin, Elektro dan Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/juritek.v5i2.4303

Abstract

In today’s era, the use of renewable energy is increasingly becoming a major focus in energy increasingly becoming carbon emissions. One of the applications of renewable energy in industrial life is the use of solar panels for street lighting systems, especially on toll road lights that require continuous and efficient lighting. This study aims to analyze the basic theory of how solar panels work an their application to toll road lights, taking into account energy efficiency, power deviation, and stability of electricity supply. The analysis method is carried out through literature studies and mathematical calculation in the application of solar panels to toll road lights. The result of the analysis show that the solar panle system is able to meet the energy needs of toll road lights, especially in areas with high sunlight intensity. In addition, the use if lithium batteries as energy storage has proven effective in maintaining the stability of electricity supply at night or in cloudy weather
Co-Authors Aland Wijaya Kusuma Azmi Nasution Benny Agus Pribadi Christiano Togatororp Kimi Bonari Siahaan KMS. Muhammad Amin Fauzi Michael Cristy Muhammad Dani Sohilin Muhammad Syauqi Adnan Ramnah Sinaga