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Dadan Sumardani
Pendidikan Fisika, Universitas Negeri Jakarta
Chemistry Education Engineering Mathematics Social Sciences

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Kelayakan Media Pembelajaran Monopoli pada Materi Struktur dan Fungsi Jaringan Tumbuhan Fitri Andriyani; Rahma Rosaliana Saraswati; Dina Melasari; Agustiani Putri; Dadan Sumardani
Risenologi Vol. 5 No. 1 (2020): Risenologi
Publisher : Kelompok Peneliti Muda Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.08 KB) | DOI: 10.47028/j.risenologi.2020.51.60

Abstract

Kesalahan klasik yang selalu muncul dalam memahami mata pelajaran biologi adalah karena banyak peserta didik menganggap biologi sebagai pelajaran yang membosankan.Selain itu, menurut hasil wawancara dengan salah satu guru IPA, menyatakan bahwa pada cabang ilmu biologi materi struktur dan fungsi jaringan tumbuhan adalah salah satu materi yang paling sulit dipahami oleh siswa. Hal ini dikarenakan mempelajari materi ini secara detail memerlukan alat bantu (mikroskop) yang hasil pengamatannya belum tentu mudah dipahami oleh siswa. Selain itu, selama ini media pembelajaran yang digunakan kurang bervariasi. Berdasarkan pernyataan di atas, maka diperlukan sebuah media pembelajaran yang dapat meningkatkan ketertarikan siswa dan pemahaman siswa dalam mempelajari materi struktur dan fungsi jaringan tumbuhan. Maka penelitian ini bertujuan untuk mengetahui tingkat kelayakan media pembelajaran monopoli terhadap materi struktur dan fungsi jaringan pada tumbuhan. Metode yang digunakan dalam penelitian ini adalah penelitian kuantitatif dengan statistika. Berdasarkan hasil kuisioner terhadap siswa kelas VIII MTs Al-Hasani maka didapatkan nilai rata-rata dari analisis kelayakan adalah 90,27% yang tergolong sangat baik.
The Defect Analysis of Carbonsteel Pipe Welding Connections Using Non-Destructive Testing with the Penetrant Test Method Nur Ichsan Sumardani; Ngainun Ibnu Setiawan; Bebeh Wahid Nuryadin; Dadan Sumardani
Risenologi Vol. 5 No. 1 (2020): Risenologi
Publisher : Kelompok Peneliti Muda Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (832.537 KB) | DOI: 10.47028/j.risenologi.2020.51.72

Abstract

In a welding process carried out on metallic materials is sometimes found defects in the material being tested, it is caused by many factors, such as the lack of good materials used and the lack of perfection of the welding process. At testing, it aims to know the surface defects in carbonsteel pipes to know the defects arising after welding. This test is performed with non-destructive tests (NDT) using Dye Penetrant testing method. This test uses 3 types of liquids, including; Cleaner, Penetrant, and developer. The results of these tests will then be observed whether defects occur after welding and what factors affect it. From the test, results there are known 10 locations defects on the surface of the carbonsteel pipe welding with a type of rounded indication of defects that are then followed up by re-welding on indications of such defects.
E-Learning Utilizing Schoology: Teaching Theory of Relativity Using Online Dadan Sumardani; Agustiani Putri; Nur Ichsan Sumardani
Risenologi Vol. 5 No. 1 (2020): Risenologi
Publisher : Kelompok Peneliti Muda Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (704.953 KB) | DOI: 10.47028/j.risenologi.2020.51.75

Abstract

Physics is not only learning through the presentation of concepts or formulas, but many events can be understood through various learning media. Evidently, students better understand the material if they can interact directly with the topic of the lesson. In addition, the rapid internet makes teachers are required to actively develop learning media. This research aims to develop physics learning using E-Learning learning media on the Special Theory of Relativity material for high school students in class XII. This study uses research and development methods that refer to the ADDIE model. This research is limited to making applications. Based on the results of research, this development has produced products that function well and present features that support student learning. Available features include quizzes, learning videos, materials and simulations that students can access. E-learning developed using Schoology can support learning through the online platform. E-learning using Schoology can display the stages of stimulus that can be determined by educators when using this e-learning. Therefore, e-learning learning that utilizes Schoology on relativity material can be designed and developed according to the needs of teachers and students in the learning process in class.
Co-Authors Agustiani Putri Bebeh Wahid Nuryadin Dina Melasari Fitri Andriyani Ngainun Ibnu Setiawan Nur Ichsan Sumardani Nur Ichsan Sumardani Rahma Rosaliana Saraswati