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Amin, Rahmasinar
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Humanities Computer Science & IT Dentistry Health Professions Languange, Linguistic, Communication & Media Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Analysis of Students' Errors in Solving Mathematics Story Problems on the System of Linear Equations with Two Variables Wibowo, Ari; SYAEKHU, Ahmad; AMIN, Rahmasinar
JOURNAL OF DIGITAL LEARNING AND DISTANCE EDUCATION Vol. 2 No. 12 (2024): Journal of Digital Learning and Distance Education (JDLDE)
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/jdlde.v2i12.259

Abstract

This research aims to describe the types of errors and the causes of students making mistakes in solving mathematics story problems. The research method used is qualitative descriptive research. The population of this research was students in Makassar with a total of 23 students and 2 students were determined as the research sample. The results of the research found that most students experienced errors due to a lack of understanding of the existing material and behavior that tended to be careless and hasty so they made mistakes in solving math story problems. There were 4 types of student errors, namely (1) errors in reading the questions occurred because the participant's students failed to understand the content or meaning of story problems and were not able to identify relevant information in mathematics story problems (2) Conceptual errors occur because students do not understand and master the concepts of the material being taught so they are confused when determining what method is appropriate for solving story problems mathematics, (3) errors in procedures/steps occur. After all, students are not careful in carrying out calculation operations. This can be seen in the ability test of students who make calculation errors in the stages of solving story problems. (4) Errors in concluding occur because students think that concluding is not important, they assume that if they have got the final score from the calculation then the solution to the story problem has been completed.
Formulasi Dan Uji Stabilitas Sediaan Serum Dari Ekstrak Etanol Kulit Buah Pisang Muli (Musa Acuminate Linn) Sebagai Antioksidan Safaruddin; Irmayani; Kalsum, Ummu; Firman, Imran; Amin, Rahmasinar
INHEALTH : INDONESIAN HEALTH JOURNAL Vol. 3 No. 2 (2024): INHEALTH JOURNAL
Publisher : CV. Eureka Murakabi Abadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56314/inhealth.v3i2.246

Abstract

Salah satu tanaman yang dapat dijadikan sebagai obat adalah tanaman Kulit Buah Pisang Muli (Musa Acuminata Linn). Daun dan kulit batang buah pisang muli dimanfaatkan sebagai obat berbagai macam penyakit, seperti pendarahan usus, amandel, memperbaiki pertumbuhan rambut. Kulit Buah Pisang Muli (Musa Acuminata Linn dapat dijadikan sediaan serum Kulit Buah Pisang Muli (Musa Acuminata Linn sebagai antioksidan, metode penelitian dilakukan secara eksperimental laboratorium, ekstrak Kulit Buah Pisang Muli (Musa Acuminata Linn) dimaserasi menggunakan pelarut etanol 96%. Dibuat sediaan serum dengan tiga konsentrasi 3%, 5%, 7%, kontrol negatif K(-), dan kontrol positif K(+) kemudian dilakukan uji organoleptis, homogenitas, pH, daya sebar, viskositas dan cycling test yang dilakukan selama 6 siklus. Hasil uji Serum Dari Ekstrak Etanol Kulit Buah Pisang Muli (Musa acuminata Linn) dapat dijadikan sediaan serum yang stabil secara fisika dan kimia serta sediaan Serum Dari Ekstrak Etanol Kulit Buah Pisang Muli (Musa Acuminata Linn) memiliki khasiat sebagai antioksidan. Hasil penelitian menunjukkan pada formula I memiliki aktivitas nilai IC50 50,25 µg/mL, formula II memiliki aktivitas nilai IC50 30,96 µg/mL, formula III memiliki aktivitas nilai 7,85 µg/mL, sedangkan control positif memiliki aktivitas nilai IC50 13,35 µg/mL. aktivitas antioksidan dari semua sediaan memiliki sifat antioksidan yang sangat kuat karena <50 ppm kecuali formula II yang memiliki sifat antioksidan kuat karena >50 ppm.
Co-Authors Ari Wibowo Firman, Imran Irmayani Safaruddin Syaekhu, Ahmad Ummu Kalsum