Understanding of Mosque Managements in Semarang City of Covid-19 Disease and Plague

The Covid-19 pandemic, which has been running for more than two years, has changed the fabric of people's lives, including religious life. This study aims to determine the extent of understanding of the Takmir Mosque Management in Semarang City about illness and the Covid-19 Pandemic Outbreak. The data were taken from documentation and questionnaires distributed to the selected Takmir Masjid management in Semarang Citysin a structured manner with an open-ended question model. The research subjects were determined through purposive sampling, with the criteria of the Takmir Masjid management in Semarang City. The collected data were analyzed by means of descriptive-qualitative. The results showed that the understanding of Takmir mosque administrators in the city of Semarang regarding the Covid outbreak was diverse. The research is expected to provide input for the government in implementing policies for regulating worship in mosques during the Covid-19 pandemic. © The Authors, published by EDP Sciences.

Nineth grade students mistakes when solving congruence and similarity problem

This research aims to know the difficulty level and the difficulties faced by students on congruent and similar problems. The test is taken from students' mid-semester exam in march 2021. Students' learning condition is under the coronavirus pandemic. This research uses a mix-method to process its data which are the qualitative and quantitative methods. The quantitative method is used to analyze the difficulty level and the qualitative method will explain the difficulties faced by students when solving congruent and similar problems. There are 9 questions given in this research that consists of 8 visual problems and one combined problem. The difficulties of the problems are four questions with easy difficulty and five questions with medium difficulty. The sample of this research is 61 9th grade students from SPMN 47, Bandung, Indonesia. The data is taken by using the google platform. The second data will be taken from teachers' interview results following the analysis of students' difficulties when solving congruent and similarity problems. The test result average is 64.77 and teachers' interview result shows that the poor test result is because teachers are not prepared with the teaching condition during the coronavirus pandemic. A recommendation for teachers is that they can improve their ability by integrating technology in mathematics. © 2021 Institute of Physics Publishing. All rights reserved.