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Muhammad Yamin
Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

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Analysis of online learning difficulties in biology learning at Senior High School Baiq Indah Komalasari; Dadi Setiadi; Muhammad Yamin
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.3130

Abstract

Research on online learning difficulties during the COVID-19 pandemic has been carried out. The aim is to describe the process and learning difficulties while online learning. This research is descriptive and qualitative. Sampling is done in three ways: interviews, questionnaires, and documentation. The data obtained is reduced, presented, reviewed, and then conclusions are drawn. As a result, the difficulties experienced by students during the process of learning online, namely the difficulty in using WhatsApp and chat group entry, make students unable to focus on learning, difficulties in the form of signals, and learning disabilities-line is a difficulty that is often experienced, learning is difficult because of signal constraints and wasteful internet quota. In conclusion, online learning difficulties are the inability of students to use learning applications such as What tApp, Google Classroom, Google Meet, and Zoom meetings. Some factors that make learning difficult are constrained by unstable signals and a lack of communication between students and teachers.
Analysis of cadmium heavy metal content in rice snail (Pila ampullacea) from Rawa Taliwang Lake Indra Wulan; Khairuddin Khairuddin; Muhammad Yamin
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.4862

Abstract

Snails are one of the aquatic organisms that can be used as biological indicators of heavy metals in water. This study aims to determine the amount of cadmium heavy metal content in rice snails (Pila ampullacea) from Rawa Taliwang Lake, which can be used to enrich lecture material on environmental knowledge and to determine the feasibility of consumption of rice snails (Pila ampullacea) in accordance with the threshold of heavy metal contamination in food. The research was conducted over ten months, from August 2022-June 2023, at Rawa Taliwang Lake. Data were collected using the purposive sampling method at two research stations, namely the East and West sides. The samples in this study were four rice snails caught using a net. The samples were then deconstructed and analyzed using Atomic Absorption Spectrophotometry (AAS). The rice snail body parts studied were the flesh cleaned and separated from the shell and internal organs. The analysis showed that the average cadmium (Cd) heavy metal content in the flesh of rice snails (Pila ampullacea) from Rawa Taliwang Lake was 0.19 mg/kg, which means that it is suitable for consumption because it is below the maximum threshold of cadmium (Cd) contamination allowed in gastropods which are 0.30 mg/kg according to the Food and Drug Administration Regulation No. 9 of 2022.
Co-Authors Baiq Indah Komalasari Dadi Setiadi Indra Wulan Khairuddin Khairuddin