The aim of this study is to analyze attitudes of classroom teachers about computer aided instruction (CAI) and to evaluate their attitudes according to variables: gender, classroom conditions and taking courses in information classrooms in their undergraduate education. The study group consists of classroom teachers working in elementary schools in Agrı. Triangulation design with mixed approach researches is used in the study. Arslan's (2006) "The Attitude Scale toward Making Computer Supported Education" is used as data collection tool. The results of the study show that there is no significant relationship between the attitudes towards using computer of teachers who have information classrooms in their schools and the teachers who do not have. As to 'gender', teachers' attitudes towards CAI are positively correlated in female teachers. Furthermore, it is also concluded that there is no significant relationship between teachers' having or not having computer experience in their undergraduate education and their attitudes towards CAI.