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Muhammad Ikhbar Ihsan
Universitas Negeri Makassar
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Physics

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Critical Thinking Skills in Physics Learning of Students at SMAN 8 Makassar Muhammad Ikhbar Ihsan; Helmi Helmi; Khaeruddin Khaeruddin
Jurnal Ilmiah Pendidikan Fisika Vol 8, No 1 (2024)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jipf.v8i1.9708

Abstract

This research aims to analyze critical thinking skills in students' physics learning at SMAN 8 Makassar. It is descriptive research employing a survey method. The research subjects are 271 students from the 10th grade at SMAN 8 Makassar, distributed across nine classes. Students' critical thinking skills are measured using a multiple-choice test instrument with indicators such as interpretation, analysis, and inference. The data collection technique used is a critical thinking skills test consisting of multiple-choice questions covering critical thinking indicators. The researcher developed these questions and underwent validation by experts and empirical validation processes. The expert validation results show that the test instrument is valid with a score above 0.75. The research results are analyzed using descriptive statistical analysis, indicating that students' critical thinking skills are still in the low category. The critical thinking skills level for interpretation is 29.97%, for analysis is 31.30%, and for inference is 38.73%. This implies that teachers must strive for innovative teaching methods to empower students' critical thinking skills. The implications of this research are expected to provide support and opportunities for teachers to improve the quality of the learning process, enabling students to develop critical thinking skills in solving physics problems and producing high-achieving students.
Bioetanol Nira Lontar: Green Energy Alternatif Masa Depan Zakia Asrifah Ramly; Muhammad Akbar; Muhammad Ikhbar Ihsan; Arsad Bahri
Bionature Vol. 21 No. 1 (2020): April 2020
Publisher : Jurusan Biologi FMIPA Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/j6v2q964

Abstract

Meningkatnya jumlah penduduk dunia akan membuat kebutuhan energi negara-negara di dunia meningkat termasuk Indonesia. Ketersediaan minyak bumi Indonesia semakin menipis sehingga untuk memenuhi kebutuhan minyak dalam negeri. Indonesia harus import minyak dari negara lain. Hal ini perlu adanya energi baru dan terbarukan yang mampu memenuhi kebutuhan energi dalam negeri. Salah satu energi baru tersebut yaitu bioetanol. Bioetanol merupakan penyebutan alkohol atau etanol yang bersumber dari bahan hayati, salah satunya adalah nira siwalan. Artikel ini memberikan ulasan tentang bahan bakar alternatif dari fermentasi nira lontar. Penelitian ini menggunakan metode pendekatan data sekunder sebagai sumber datanya. Adapun hasil dari telaah pustaka yang dilakukan menunjukkan bahwa, tingginya kandungan gula pada nira lontar yang berkisar antara 10-30% menjadikannya potensial untuk dikembangkan menjadi bioetanol. Namun, studi lebih lanjut harus dilakukan untuk menentukan efektivitas dan efisiensi penggunaan bahan bakar dari nira lontar pada mesin-mesin kendaraan.
Co-Authors Arsad Bahri Khaeruddin, Khaeruddin Muhammad Akbar Zakia Asrifah Ramly