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All Journal JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY)
Jumriana Rahayu
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Chemistry Education

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Penerapan Rekaman Kaset sebagai Media Alternatif untuk Meningkatkan Hasil Belajar pada Materi Kimia Lingkungan dengan Pokok Bahasan Pencemaran Lingkungan Kelas XI SMA N. 14 Padang Jumriana Rahayu; Eliyarti Eliyarti
JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Vol 1 No 1 (2019): Pendidikan dan Pendidikan Kimia
Publisher : LEMBAGA PENELITIAN DAN PENGABDIAN MASYARAKAT (LPPM) UNIKS

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Abstract

Abstract The teaching and learning process will be more effective and efficient if supported by the right media. Research has been conducted to see the learning outcomes of students in class XI of SMA 14 by using cassette recording media as an alternative learning media in environmental chemistry material with the subject matter of the subject of environmental pollution. This research is a classroom action research (CAR) which is carried out in class XI students. Data collection techniques used are observation, tests and documentation. The data analysis technique is in the form of qualitative data and quantitative data. The results of data analysis show that classical completeness in the first cycle is 70%. While classical completeness in cycle II is 95%. This means that student learning outcomes from cycle I to cycle II increased by 25%. Based on the results of these studies it can be concluded that the application of cassette recordings as an alternative media can improve student learning outcomes in environmental chemistry subject matter of environmental pollution in Padang 14 High School. Keywords: Teaching Media, Cassette Records, Children's Learning Habits and Learning Outcomes and Environmental Pollution.
ANALISIS VITAMIN C BUAH SRIKAYA (ANNONA SQUAMOSA) DALAM MENINGKATKAN IMUNITAS TUBUH PADA MASA PANDEMI COVID-19 Jumriana Rahayu; Edi Kurniawan; Asregi Asril
JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Vol 4 No 1 (2022): Jurnal Pendidikan, Pendidikan Kimia, dan Ilmu Kimia
Publisher : LEMBAGA PENELITIAN DAN PENGABDIAN MASYARAKAT (LPPM) UNIKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/jedchem.v4i1.1885

Abstract

Vitamin C is one of the vitamins that the body needs to increase immunity in warding off all forms of disease. One of the fruits that contain vitamin C is srikaya fruit. Srikaya fruit is a plant belonging to the genus Annona originating from the tropics. Srikaya fruit is analyzed for its vitamin C content in order to increase the immunity of the community during the COVID-19 pandemic. The method used is a laboratory experiment with the iodometric method. The result is that srikaya fruit contains a fairly high amount of vitamin C, with the average vitamin C levels in the srikaya fruit sample being 2.58%, 2.503% and 2.66%, respectively, while the average vitamin C content in the srikaya fruit sample is 2.581%. And during this pandemic, we should consume a lot of food and fruit with vitamin C to increase the body's immunity, so that it can be developed to the next stage of further and more effective research.
Co-Authors Asregi Asril Edi Kurniawan Eliyarti Eliyarti