This practice aims to teach students who have intellectual disabilities how to greet people when they meet them. The purpose of this research is to see the effects of video modelling practice over the mental retarded students, when they meet people. In this research, teaching the social skills to the students with mental retardations were evaluated with the effectiveness of teaching with video modelling, model of multiple probe design between subjects from research models of single subject design. In this research four students, whose ages ranged from ten to eleven attending a special education class at a primary school in Ankara and who had intellectual disabilities were participated. The peers group consisted of 3 girls and 2 boys who studied at the same elementary school with the target students (all of them were 11 years old and continue their studied at 5th grade class). Research findings showed that using the video modelling in teaching students with intellectual disabilities help them to acquire the skill of greeting people and after gaining those skills they continued to use the skills and have shown that they continue to use in different situation and to different people. After the interviews done with the mothers and the teachers of the students about the results of teaching the skill of "greeting when meet people" through video modelling, it was seen that they were satisfied with these skills to have been taught to the students. They also expressed that the students had more interaction with their friends around them in much earlier time.