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All Journal Hydrogen: Jurnal Kependidikan Kimia Entalpi Pendidikan Kimia
Aura, Selfi Monica
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Humanities Chemistry Education

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Pengembangan Permainan Tic-Tac-Chem Sebagai Media Pembelajaran Kimia pada Materi Hukum-Hukum Dasar Kimia Kelas X SMA/MA Aura, Selfi Monica; Azra, Fajriah
Entalpi Pendidikan Kimia Vol 2, No 1 (2021)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/epk.v2i1.134

Abstract

Permainan Tic-Tac-Chem merupakan media pembelajaran yang berguna sebagai latihan untuk memperkuat pemahaman “hukum-hukum dasar kimia” peserta didik. Penelitian ini bertujuan untuk mengembangkan media permainan Tic-Tac-Chem menjadi media pembelajaran kimia terhadap hukum-hukum dasar kimia dan menentukan tingkat validitas serta  praktikalitasnya. Jenis penelitian ini adalah penelitian Research and Development (R D) yang menggunakan model pengembangan 4-D, yaitu fase define, design, develop,dan disseminate. Pengembangan permainan Tic-Tac-Chem terbatas pada fase develop dengan melakukan pengujian validitas dan praktikalitasnya. Pengambilan data dilakukan dengan menggunakan angket  validasi  dan  angket  praktikalitas. Validasi  dilakukan  oleh  lima orang validator. Sementara itu, praktikalitas dilakukan oleh 20 orang peserta didik kelas XI dan dua orang guru kimia. Teknik analisa data menggunakan Aiken’s V dan % Praktikalitas. Hasil uji validitas media memiliki Aiken’s V (V) dengan kategori valid yaitu 0,81. Untuk hasil uji kepraktisan % Praktikalitas (P) media sebesar 87% termasuk dalam kategori sangat praktis. Dengan demikian permainan chemmon dikatakan valid dan praktis sebagai media pembelajaran kimia untuk mempelajari“hukum-hukum dasar kimia”.
The Presence of Microplastics in Shellfish: A Review Aura, Selfi Monica; Deswati, Deswati; Emriadi, Emriadi
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 1 (2024): February 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i1.10820

Abstract

This study aims to find the presence of microplastics in Shellfish through the literature review method of several studies conducted. The increase in plastic pollution in water systems since the 1950s has become a significant problem worldwide due to the slow decomposition rate. Microplastics, mainly primary and secondary, can accumulate in marine organisms such as Shellfish and enter the food chain, which is a concern for humans. Shellfish, especially M. galloprovincialis, can be used as bioindicators and bioremediation tools to tackle microplastic pollution. Microplastics are a severe problem in the world's oceans, especially in marginal and densely populated coastal areas. Marine organisms like Shellfish contain microplastics, which can cause physical damage and disrupt the immune system. Mytilus edulis clams and Crassostrea gigas oysters are the most consumed species with significant microplastic content. Research has also shown the presence of microplastics in Mytilus chilensis in the Gulf of Ushuaia, South America, with fibers and fragments being the most common types. Microplastics are also found in wild mussels in Tunisia, with the estimated annual dietary intake of microplastics by Tunisians through wild mussel consumption amounting to 4.2 particles per capita per year. Mussels of the genus Mytilus were proposed as guardian organisms to monitor microplastic pollution.
Co-Authors Deswati Deswati Emriadi - Fajriah Azra