2023 · Book · Koleksi Perpustakaan
Problem solving ability is a necessary ability in dealing with problems in student life. This study aims to describe students' abilities in solving mathematical problems in flat shape material for class V B SDN 009 Malinau Utara. The type of research used is descriptive qualitative. Data collection was carried out through problem solving tests and then confirmed through interviews. In this study, 20 students from class V B were involved in taking a problem-solving ability test and the results of the students' work were grouped based on high, medium, and low mathematical ability. After that, the researcher took as many as 6 students as subjects as representatives of each category of mathematical ability to be interviewed. the result of solving this problem is that high-ability subjects can be said to have been able to fulfill the four stages of polya, but subjects T1 and T2 are still not thorough because the subject is in a hurry and feels confident about the answer. S1 and S2 subjects have not been able to fulfill the third and fourth stages because the two subjects are unable to think about and understand what steps will be used. Subjects R1 and R2 have not been able to understand what problems there are in the problem, when making plans the two subjects use inaccurate concepts and at the stage of carrying out the plans the subject is unable to solve the problem because of the inaccuracy of the concept used besides that, the subject does not look back at what has been subject to work on.
2023 · Thesis · Skripsi, Thesis, Disertasi, dan Tugas Akhir
Problem solving ability is a necessary ability in dealing with problems in student life. This study aims to describe students' abilities in solving mathematical problems in flat shape material for class V B SDN 009 Malinau Utara. The type of research used is descriptive qualitative. Data collection was carried out through problem solving tests and then confirmed through interviews. In this study, 20 students from class V B were involved in taking a problem-solving ability test and the results of the students' work were grouped based on high, medium, and low mathematical ability. After that, the researcher took as many as 6 students as subjects as representatives of each category of mathematical ability to be interviewed. the result of solving this problem is that high-ability subjects can be said to have been able to fulfill the four stages of polya, but subjects T1 and T2 are still not thorough because the subject is in a hurry and feels confident about the answer. S1 and S2 subjects have not been able to fulfill the third and fourth stages because the two subjects are unable to think about and understand what steps will be used. Subjects R1 and R2 have not been able to understand what problems there are in the problem, when making plans the two subjects use inaccurate concepts and at the stage of carrying out the plans the subject is unable to solve the problem because of the inaccuracy of the concept used besides that, the subject does not look back at what has been subject to work on.
2023 · Book ·
Tarakan is a city that has a large enough fishery potential to be developed, one of which is useful and abundant but underutilized marine organisms, namely types of snails. This study aims to characterize the chemical composition consisting of (proximate, amino acids, and fatty acids) in boiled shell snails, obtain the yield of boiled shell snail extract, and obtain the active compounds contained in boiled shell snails. The research method was divided into 4 tests including analysis of proximate, amino acids, fatty acids, and bioactive ingredients using qualitative descriptive analysis. The results showed that boiled coconut snails had proximate contents such as 82% water content, 25.63% protein, 4.60% fat, 2.71% ash content, and 0.24% carbohydrates. The yield of boiled cucumber snail extract was 2.78% methanol, 0.44% ethyl acetate, and 0.15% n-hexan. The amino acid content consists of 9 essential amino acids and 6 non-essential amino acids with a total amino acid of 32.41%. The total fatty acid content is 20.68% which consists of 14 types of saturated fatty acids, 5 types of unsaturated fatty acids, and 3 types of polyunsaturated fatty acids, and has omega-3 of 2.84%, omega-6 of 0 .85%. Boiled coconut snail contains active compounds such as alkaloids, flavonoids, hydroquinone phenols, saponins, steroids, and tannins.
2023 · Thesis ·
Tarakan is a city that has a large enough fishery potential to be developed, one of which is useful and abundant but underutilized marine organisms, namely types of snails. This study aims to characterize the chemical composition consisting of (proximate, amino acids, and fatty acids) in boiled shell snails, obtain the yield of boiled shell snail extract, and obtain the active compounds contained in boiled shell snails. The research method was divided into 4 tests including analysis of proximate, amino acids, fatty acids, and bioactive ingredients using qualitative descriptive analysis. The results showed that boiled coconut snails had proximate contents such as 82% water content, 25.63% protein, 4.60% fat, 2.71% ash content, and 0.24% carbohydrates. The yield of boiled cucumber snail extract was 2.78% methanol, 0.44% ethyl acetate, and 0.15% n-hexan. The amino acid content consists of 9 essential amino acids and 6 non-essential amino acids with a total amino acid of 32.41%. The total fatty acid content is 20.68% which consists of 14 types of saturated fatty acids, 5 types of unsaturated fatty acids, and 3 types of polyunsaturated fatty acids, and has omega-3 of 2.84%, omega-6 of 0 .85%. Boiled coconut snail contains active compounds such as alkaloids, flavonoids, hydroquinone phenols, saponins, steroids, and tannins.
