Abstract:Mangrove snails (Telescopium telescopium ) are a type of gastropod that live in brackish water or mangrove forests dominated by mangrove plants. Mangrove snails have a fairly high nutritional content consisting of fat, protein,…
rotein, essential amino acids, and saturated fatty acids. This study aims to determine the fat content of mangrove snails from two different locations, namely in the mangrove forest waters of Negeri Luhu and the mangrove forest waters of Waai Village. This type of research is descriptive qualitative with the object of research being the fat content of mangrove snails. This research was conducted at the Basic Chemistry Laboratory of Pattimura University, Ambon, which was carried out starting on October 14, 2020. Data collection was obtained from the results of the analysis of the fat content of mangrove snails using the soxhlet method. The results of the study showed that from six samples of mangrove snails obtained from two different locations, it was known that the mangrove snail samples in Negeri Luhu had a higher fat content with an average value of 4.5448% compared to the mangrove snail samples in Waai Village which had an average value of 3.3649 %.
Abstract:Using a descriptive qualitative approach, this study aims to describe the development of science in the Classical Islamic world during the Abbasid Dynasty (750–1258 AD). Literature studies, interviews with Islamic historians,…
orians, and observations at historical sites are the methods used. The results of the study show that science made rapid progress during the Abbasid era, especially in mathematics, medicine, astronomy, and chemistry. Translating and disseminating information from Greek, Persian, and Indian civilizations was greatly assisted by centers of knowledge such as Bayt al-Hikma (House of Wisdom) in Baghdad. Famous scientists such as Al-Khwarizmi, Ibn Sina, and Al-Razi made major contributions through their highly influential works, which were then widely disseminated in the West. In addition, this study found that the socio-political conditions and support from the Abbasid caliphs.
Abstract:This research aims to assess the content validity of the instrument used to measure Technological Pedagogical Content Knowledge (TPACK) in prospective chemistry teachers. The evaluation encompasses a thorough analysis of…
the instrument's alignment with the knowledge domains being measured, ensuring that the instrument covers key aspects of TPACK that are relevant to the context of teaching chemistry. Content validity reflects the representation and relevance of a set of items used to measure a concept carried out through rational analysis of the contents of the test through an expert panel assessment. This validity refers to the accuracy of the measurement based on the contents of the instrument to ensure that the scale of the items used has fulfilled the entire concept of the item or the suitability of the item. The instrument used in this study was assessed by nine validators consisting of two chemistry education experts and seven chemistry teachers. The assessment is done by determining the appropriateness or relevance of the test contents to be used through rational analysis by a competent panel or through expert judgment. The instrument validations in this study were 20 multiple choice questions. The assessment is done by giving a score of 1-4 on each item. This research is a quantitative descriptive study using Rasch model analysis. The analysis showed that the exact agreement was 71.4% and the expected agreement was 73.8%. Based on measurements showing relevant items in this research instrument, there are 17, among others number 1, 10, 11, 14, 5, 8, 19, 20, 18, 3, 6, 12, 13, 15, 17, 4 and 9. While there are 3 items that are irrelevant and need to be corrected, including number 16, 2 and 7.
Abstract:This research is motivated by the low implementation of ICT-based chemistry learning, schools have not been able to implement ICT-based chemistry learning in achieving graduate quality. The purpose of this study was to determine…
etermine the implementation of integrated quality management of ICT-based chemistry learning as an effort to improve the quality of graduates. This research is a qualitative research with case study method. Data collection techniques used are observation, interviews, and documentation. Data were analyzed using data reduction, data presentation, and drawing conclusions. The technique of checking the validity of the data is by triangulation of sources and techniques. Regulation of the minister of education and culture Number 20 of 2016 concerning competency standards for elementary and secondary education graduates, regarding the meaning, purpose, and scope of SKL as well as Monitoring and Evaluation. Definition of Graduate Competency Standards are criteria regarding the qualifications of graduates' abilities which include attitudes, knowledge, and skills. The results of research at SMAN 1 Bandung City and SMA Al Azhar Syifa Budi Parahyangan West Bandung in general indicate that the implementation of integrated quality management of ICT-based chemistry learning in both schools has been going well so that it can improve the quality of graduates.