Teaching mathematics online at in a selected year of the second stage

This diploma thesis deals with the introduction of equations in an eight-year Grammar school during distance learning. This thesis focuses on action research in the context of distance learning in the first year of the eight-year Grammar school. It consists of a series of lessons focusing on equations that I have taught at OPENGATE Grammar School. This thesis aims to monitor my progress in the field of didactics. The thesis is divided into two main parts - theoretical and practical. The theoretical part itself is further divided into five chapters: Definition of key terms, Closing and re-opening of schools in the Czech Republic with a comparison with other countries of the European Union, Specifics of online teaching, theory of linear equations, analysis of textbooks. The practical part builds a priori on analyses of a continuous reflection. The practical part expands on the theoretical by the creation of scenarios. The description of scenarios is accompanied by a continual reflection and a posteriori reflection. The conclusion presents the key points of the reflection. The analysis and the reflection are put into the context of the linear equation curriculum analysis presented in a selected series of textbooks both at the primary and lower secondary school levels. The practical part was realized..