A penumbral lunar eclipse phenomenon occurs when Earth’s outer shadow falls on the Moon’s face. This astronomical phenomenon is easy to miss because sunlight still illuminates most of the Moon. In this research, we want to describe the first-year undergraduate physics students’ understanding and awareness of Penumbral Lunar Eclipses, especially on June 5th, 2020. The study using qualitative research with a questionnaire and an interview. The subject of the course is 100 participants from first-year undergraduate physics students. Physics students’ answers are categorized into four levels, namely Dissatisfaction, Intelligible, Plausibility, and Fruitfulness. From the results, it can be concluded that physics students know with the Dissatisfaction category related to the phenomenon of the penumbra lunar eclipse. Otherwise, for knowledge about the strawberry full moon eclipse, students learn the intelligible and dissatisfaction types. It recommended that physics students increase their understanding of the occurrence of a lunar eclipse by understanding scientific processing skills to reinforce their opinion.
The purpose of this study was to produce of android-assisted math student worksheets on valid and practical class VII comparison materials. This research and development uses ADDIE development models (Analysis, Design, Development, Implementation, Evaluation). However, because the research only focused on product development, this research did not carry out the implementation stage, and stage evaluation was carried out at each stage. This research was conducted at MTs Muhammadiyah Purbolinggo. The subject of the study was grade VII B MTs Muhammadiyah Purbolinggo. The object of research is an android-assisted mathematics student worksheet. Data collection techniques using interview questionnaires and validation test questionnaires of material experts, media and student practicality test questionnaires. From the results of the validation test conducted by 4 expert validators, namely 2 material experts and 2 media experts as well as practicality trials conducted by 5 students, it can be concluded that android-assisted mathematics student worksheets in class VII material are considered very valid and very practical, with an average percentage of validity test results of 88,56% and an average percentage of practical test results of 90,47%.
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