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Penggunaan Media Pembelajaran Audio Visual pada Materi Sistem Kardiovaskuler/Sirkulasi di Sekolah Menengah Pertama Waruwu, Yuri; Halawa, Kadini Kurniawati; Lase, Natalia Kristiani
Indo-MathEdu Intellectuals Journal Vol. 5 No. 3 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i3.1346

Biology is one of the subjects that students consider difficult. This difficulty arises because students must memorize the facts, principles, and theories taught by the teacher, without paying attention to the student's need to discover, develop, and apply their own ideas. The use of information technology in learning is an effective solution to overcome low student participation and increase their motivation in the learning process. The purpose of this study is to describe the feasibility of audio-visual media circulation system and describe the effectiveness of audio-visual media in the learning process. This study uses a qualitative approach through a descriptive method. Data analysis is carried out qualitatively consisting of data reduction, data presentation, and conclusion drawing. The results of the study are that the use of audio-visual media in cardiovascular/circulatory materials in the learning of the human circulatory system can increase student activity and learning outcomes. This media can also help convey information more completely and concretely, making it easier for students to understand material that tends to be abstract

Penggunaan Media Pembelajaran Audio Visual pada Materi Sistem Kardiovaskuler/Sirkulasi di Sekolah Menengah Pertama Waruwu, Yuri; Halawa, Kadini Kurniawati; Lase, Natalia Kristiani
Indo-MathEdu Intellectuals Journal Vol. 5 No. 3 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i3.1346

Biology is one of the subjects that students consider difficult. This difficulty arises because students must memorize the facts, principles, and theories taught by the teacher, without paying attention to the student's need to discover, develop, and apply their own ideas. The use of information technology in learning is an effective solution to overcome low student participation and increase their motivation in the learning process. The purpose of this study is to describe the feasibility of audio-visual media circulation system and describe the effectiveness of audio-visual media in the learning process. This study uses a qualitative approach through a descriptive method. Data analysis is carried out qualitatively consisting of data reduction, data presentation, and conclusion drawing. The results of the study are that the use of audio-visual media in cardiovascular/circulatory materials in the learning of the human circulatory system can increase student activity and learning outcomes. This media can also help convey information more completely and concretely, making it easier for students to understand material that tends to be abstract

Penggunaan Media Pembelajaran Audio Visual pada Materi Sistem Kardiovaskuler/Sirkulasi di Sekolah Menengah Pertama Waruwu, Yuri; Halawa, Kadini Kurniawati; Lase, Natalia Kristiani
Indo-MathEdu Intellectuals Journal Vol. 5 No. 3 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i3.1346

Biology is one of the subjects that students consider difficult. This difficulty arises because students must memorize the facts, principles, and theories taught by the teacher, without paying attention to the student's need to discover, develop, and apply their own ideas. The use of information technology in learning is an effective solution to overcome low student participation and increase their motivation in the learning process. The purpose of this study is to describe the feasibility of audio-visual media circulation system and describe the effectiveness of audio-visual media in the learning process. This study uses a qualitative approach through a descriptive method. Data analysis is carried out qualitatively consisting of data reduction, data presentation, and conclusion drawing. The results of the study are that the use of audio-visual media in cardiovascular/circulatory materials in the learning of the human circulatory system can increase student activity and learning outcomes. This media can also help convey information more completely and concretely, making it easier for students to understand material that tends to be abstract

Optimasi Produksi Bioetanol dari Limbah Kulit Pisang Melalui Variasi Waktu Fermentasi Menggunakan Saccharomyces Cerevisiae Lahagu, Analisi; Zai, Mitra Semestriani; Lawolo, Riniat; Gulo, Piderman; Waruwu, Yuri; Zega, Novelina Andriani
Indo-MathEdu Intellectuals Journal Vol. 7 No. 1 (2026): Indo-MathEdu Intellectuals Journal (In-Press)
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v7i1.5037

This study aims to determine the effect of fermentation duration on the bioethanol yield and to determine the optimal fermentation time using Saccharomyces cerevisiae yeast. The research method involved several main stages: preparation of banana peel samples, acid hydrolysis (using H₂SO₄) to convert polysaccharides into glucose, and anaerobic fermentation. The fermentation times used in this study were 3, 5, 7, and 9 days with a constant concentration of Saccharomyces cerevisiae inoculum. The bioethanol content was measured using a distillation method followed by alcohol content measurement using an alcohol meter or gas chromatography (GC). The results showed that fermentation time had a significant effect on the bioethanol yield. The bioethanol content increased until it reached an optimal point on the 5th day (or adjust according to your data) with a content of ...%, and tended to decrease at longer fermentation times due to the depletion of nutrients in the medium and the accumulation of by-products that inhibited yeast growth. Based on these results, it can be concluded that banana peel waste is effective for use as a bioethanol substrate with an optimal fermentation time of 5 days.

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