Role of NO in comunication in mathematics

The diploma thesis deals mainly with the analysis of the work with NO/NOT (both stand- alone word and words containing a negative and containing graphic characters) in the athematics booksfor the first class of the eight-year grammar school (four mathematics textbooks, Prometheus Publishing House). The first chapter summarizes the investigation of the available literature which analyses the textbooks and negative in mathematics. Furthermore, there is a characteristic of the age group of pupils who are taught according to the textbook and the analysis of the Framework education program for basic education from the point of view of its work with the negatives and claims, which are requested from pupils. The main part is the analysis of a mathematical textbook focused on the frequency of the word NO/NOT or the words containing the negative. In the practical part, there is proposed a division of words containing the negative into five roles defined by me, and investigation which results show how far my work can serve teachers, respectively how this role definition can help. The practical part also mentions some surprising mathematical mistakes that pupils have done. Finally, there are mentioned recommendations for teachers on what to focus when working with the negative during teaching