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This study aims to determine: 1) the utilization of computer-based powerpoint learning media used in SMAN 1 Darul Falah has been in accordance with BSNP standards; 2) the utilization of integrated prezi learning media PBL model developed on salt hydrolysis discussion has been in accordance with BSNP standard; 3) differences in use of computer-based powerpoint learning media and prezi integrated learning media PBL model developed to improve student learning outcomes. The population in this study is all students of class XI IPA at SMAN 1 Darul Falah Academic Year 2017/2018. The sampling technique is purposive sampling. The sample of this research is two classes in SMAN 1 Darul Falah each 2 class. Research instrument in the form BSNP, objective test of valid learning result and reliable. Analytical technique used Two Way Anova technique and General Linear Model (GLM) test on SPSS 17.00 program. Analytical technique used Two Way Anova technique and General Linear Model (GLM) test on SPSS 17.00 program. The results concluded that: 1) The feasibility level of learning media based powerpoint computer used in SMAN 1 Darul Falah has a decent category; 2) The prezi integrated learning media PBL model developed has a very decent category; 3) there are significant differences in learning outcomes using computer-based powerpoint learning media and prezi integrated learning media PBL model developed.

Online learning requires students to be more independent in learning. For example, chemistry learning tends to contain abstract concepts (very theoretical), so it requires a more detailed description and explanation. To help solve this problem, we need a media that can make it easier for students to learn during online learning. The purpose of this study was to determine student perceptions or responses to learning using teaching videos. The method used in this research is descriptive quantitative, which will produce a description of quantitative data related to student perceptions of the results of the Cronbach Alfa test. The instruments in this study were questionnaires, and learning outcomes test questions. The sample consisted of 102 students. Before being used, video-based learning media with the help of a pen tablet were validated by media and material experts, both in terms of construction and concepts contained in the learning media. The validation results obtained an average value of 0.91 which means it is very valid. Further analysis using reliability showed the Cronbach Alfa coefficients were 0.88, respectively; 0.92; 0.93 consecutively for aspects of knowledge, media and convenience. In order to be accepted by the media as learning media, it is necessary to look at student responses to aspects of knowledge (P) where the average value is 3.96 which is classified as good, media (M) 4.02 and convenience (K) 3.81 are also included in good category.

The Covid-19 pandemic has caused the teaching and learning process to be conducted online as a substitute for classroom learning. This study aims to determine the effect of online learning on student interest in the Chemistry Education program at UIN Ar-Raniry Banda Aceh, Indonesia. This research is qualitative research with a qualitative descriptive method with a sample of 40 students. The data was collected through distributing questionnaires within three days to obtain information about the impact of distance learning during the covid-19 pandemic on student interest in the chemistry education program. The results of data analysis showed that 44.33% of students had a good interest in online learning. It means that students' interest in learning is not good for online learning.

Good facilities, effective and efficient chemical laboratory management must be applied so that chemistry practicum activities can be carried out properly. Previous research has shown that the management of chemical laboratories in several high schools has not been carried out properly, so it is necessary to conduct this study at SMA Negeri 1 Tapaktuan, South Aceh. The purpose of this study was to determine the effectiveness of chemical laboratory management at SMA Negeri 1 Tapaktuan, South Aceh. This research was conducted qualitatively accompanied by descriptive analysis. Subjects in this study; principal, person in charge/head of chemical laboratory, laboratory staff and chemistry teacher. Collecting data by observation, interviews and documentation. Next, the research results are classified into 4 aspects of laboratory management which consist of planning, organizing, implementing and monitoring which are divided into 28 criteria. The results obtained are the management of the chemistry laboratory which is well implemented 75%, less good 10.72% and not good 14.28%. The conclusion of this study is that the chemical laboratory management at SMA Negeri 1 Tapaktuan South Aceh has not been effective because it has not reached 80% of all aspects of chemical laboratory management.