The purpose of this research to determine the special education teachers’ views about mathematics and mathematics teaching methods using in special education. For this purpose, a semi-structured interview form was prepared to be able to interview with the special education teachers teaching mathematics. The participants of the study are four teachers who graduated and non-graduate from the field of mental retardation. The method used in the research is qualitative research approach. The research was designed as a case study in qualitative research methods. In this research, data obtained from interviews, document review and thinking aloud. Content analysis was used to analyze the data. The data are presented in comparison recommendations are given for the future. The result of the research was represented in comporison and provided practical suggestions for the future. And also the results will be pathfinder for a project that will apply to teacher in Denizli in Turkiye.