<p><em>This study aims to describe the application of e-learning in improving students' understanding of earthquake disaster preparedness. This study used a quasi-experimental design with an equivalent time series type. The research sample was taken of grade 10 Senior High School 5 Banda Aceh with a non-probability sampling method. The stage of this research is that students are given a pre-test to see their initial level of understanding before being given a treatment, then students are given a treatment in the form of earthquake preparedness learning through the e learning model. the understanding of students after participating in learning with the e learning model has increased by 14.44 %. As for the n-gain value is 0.54 (moderate criteria), the N-gain value indicates that learning with the e-learning model is effective in improving students' understanding of earthquake disaster preparedness. based on research data analysis it was seen that students' understanding of earthquake disaster preparedness had increased compared to before. Meanwhile, related to the effectiveness of learning, based on data analysis, it was found that learning earthquake disaster preparedness using the e-learning model was effective in increasing students' understanding of earthquake disaster preparedness.</em></p>

Based on theoretical studies, the variable arm muscle power is an important factor of physical condition in supporting badminton smash skills. This study aims to determine the correlation between arm muscle power and badminton smash skills. This research uses a quantitative approach with correlational research type. The research sample consisted of 73 people who were selected from physical Serambi Mekkah University, Banda Aceh. The research instruments used for each varibale were: arm muscle power using the shot put test instrument, while for badminton smash skills using a process and result test developed by the author himself, the data analysis stages consisted of calculating the mean, standard deviation.. The stages of data analysis carried out were the calculation of the average, standard deviation, determination of the t score, calculation of the correlation and the t test to determine the significance of the correlation between variables. Based on the analysis of research data, The correlation between arm muscle power and badminton smash skills is (r = 0.88. which means that there is a significant correlation between arm muscle power and badminton smash skills. Based on the calculation of the coefficient of determination, it was also found that arm muscle power contributed 78.68% to badminton smash skills.

The research objective was to explore the application of e learning-based learning in earthquake learning, to determine the effect of e-learning learning on the quality of student learning and to see the effectiveness of learning using the e-learning method. This type of research is quantitative with this type of research survey which is expected to explain the reality of using E-Learning in learning. This study aims to measure the application of e-learning to school students. This research uses a qualitative approach to the type of case study. The setting of this research is Senior High School of Banda Aceh. The research subjects were teachers and students. Collecting data through observation, in-depth interviews, and documentation study. The results of this study indicate that: 1. E-learning has a positive and significant effect on the quality of student learning. 3. The influence is in the strong category, the more intensively elearning is used, the quality of student learning will also increase, 3. The use of e-learning web will improve learning outcomes indirectly, 3. The purpose of using e-learning in the learning system is to expand access to education for the wider community, as well as in order to improve the quality of learning.